Chevrolet Silverado 2500Hd Classic Users Manual ManualsLib Makes It Easy To Find Manuals Online!

2014-12-12

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
 
 
compatible engine
 
steel wheels
 
steel wheels
 5
 
forged aluminum wheels
 
 
 
 
the rear seat
 
 
models and includes electronic trailer sway control, intelligent

 
engine and cab combinations
 
 
 
 

 
 1, front outboard seating
positions with rollover sensor
 1

 
 
 
 
 
 
 
 5
 5
 5
sILvEraDo 2500hD crEw cab 4wD work truck - 1wt | 1
New Features
Changes
Deletions
1. Head curtain side air bags are designed to help reduce the risk of head and neck injuries to front and rear seat occupants on the near side of certain side-impact collisions.
Always use safety belts and the correct child restraints for your child’s age and size, even in vehicles equipped with air bags. Children are safer when properly secured in a rear
seat. See your vehicle Owner’s Manual and child safety seat instructions for more information.
5. Gross Vehicle Weight Rating (GVWR). When properly equipped, includes vehicle, passengers, cargo and equipment.
2011 Chevrolet Municipal Vehicles Technical Manual
2011 Chevrolet Municipal Vehicles Technical Manual
2 | sILvEraDo 2500hD crEw cab 4wD work truck - 1wt
MODEL AVAILABILITY
CK20743 4-wheel drive 3/4 ton fleetside standard bed crew cab pickup
CK20943 4-wheel drive 3/4 ton fleetside long bed crew cab pickup
STANDARD EQUIPMENT SUMMARY
WARRANTY 3 years / 36,000 miles bumper-to-bumper (whichever comes first, see dealer for details)
5 years / 100,000 miles limited powertrain (whichever comes first, see dealer for details)
INTERIOR FEATURES
AIR CONDITIONING Single-zone manual front climate control
ASSIST HANDLES Front passenger, rear assist handles in the headliner
AUDIO SYSTEM FEATURE Speaker system (includes 6 speakers)
COAT HOOKS Rear driver and passenger side
CUP HOLDERS Front, rear
DOME LAMPS Interior with dome and reading lamps, illuminated entry feature and backlit instrument panel switches
DOOR LOCKS Power includes AU0 remote keyless entry unless SEO 5B5 power windows, locks and mirrors is ordered
DRIVER INFORMATION CENTER Odometer, trip odometer and message center (monitors numerous systems depending on vehicle equipment level including low fuel,
turn signal on, transmission temperature and oil change notification) (Driver Information Center controls are operated through the trip
button unless UK3 steering wheel mounted audio controls is ordered)
FLOOR COVERING Black rubberized-vinyl
MIRROR Inside rearview manual day/night
POWER OUTLETS 2 auxiliary instrument panel-mounted with covers, 12-volt
RADIO AM/FM stereo with seek-and-scan and digital clock with 4-speaker system
RESTRAINT SYSTEM Frontal, driver and right-front passenger seat mounted side-impact air bags1, driver and right-front passenger for thorax and pelvic
protection, head curtain side-impact front outboard seating positions with rollover sensor; always use safety belts and the correct
child restraints for your child's age and size, even in vehicles equipped with air bags1; children are safer when properly secured in a
rear seat (see the vehicle's owner’s manual and child safety seat instructions for more safety information)
SEAT TRIM Dark Titanium vinyl (vinyl seats require BG9 Graphite-colored rubberized-vinyl floor covering)
SEAT, FRONT 40/20/40 split-bench, 3-passenger, driver and front passenger manual reclining with outboard head restraints and center fold-down
armrest with storage
SEAT, REAR 60/40 folding bench (folds up), 3-passenger, folding (includes child seat top tether anchor)
SPEEDOMETER/CLUSTER Analog with speedometer, fuel level, engine temperature, tachometer, volt meter and oil pressure indicators
STEERING WHEEL Includes theft deterrent locking feature
STEERING COLUMN Tilt-wheel, adjustable with brake/transmission shift interlock
THEFT DETERRENT Vehicle theft PASS-Key® III
VISORS Driver and front passenger, sliding with clip and passenger side vanity mirror with cover, Opal Gray-colored
WARNING TONES Headlamp on, key-in-ignition, driver and passenger buckle up reminder and turn signal on
1. Head curtain side air bags are designed to help reduce the risk of head and neck injuries to front and rear seat occupants on the near side of certain side-impact collisions.
Always use safety belts and the correct child restraints for your child’s age and size, even in vehicles equipped with air bags. Children are safer when properly secured in a rear
seat. See your vehicle Owner’s Manual and child safety seat instructions for more information.
Note: This vehicle is NOT designed nor intended for use IN HIGH SPEED EMERGENCY VEHICLE OPERATIONS
2011 Chevrolet Municipal Vehicles Technical Manual
sILvEraDo 2500hD crEw cab 4wD work truck - 1wt | 3
EXTERIOR FEATURES
AIR DAM Black
BUMPER, FRONT Chrome
BUMPER, REAR Chrome, step-style with pad
DAYTIME RUNNING LAMPS Automatic exterior lamp control
DOOR HANDLES Black
GLASS Solar-Ray light-tinted, all windows
GRILLE Chrome surround
HEADLAMPS Dual halogen composite with automatic exterior lamp control and flash-to-pass feature
KEYLESS ENTRY 2 transmitters, panic button and content theft alarm (included and only available with AU3 power door locks; if SEO 5B5 power
windows, locks and mirrors is ordered AU0 becomes optional on all models)
LAMPS Dual cargo area lamps
MIRRORS Outside manual Black, manual-folding
PAINT Solid
PICKUP BODY Fleetside
WINDOWS Fixed rear access door
WINDSHIELD WIPERS Front intermittent wet-arm with pulse washers
CHASSIS FEATURES
AIR CLEANER High-capacity
ALTERNATOR 125-amps
BATTERY Heavy-duty 600 cca, maintenance-free with rundown protection and retained accessory power
BRAKES 4-wheel antilock, 4-wheel disc
COOLING, ENGINE External engine oil cooler, heavy-duty air-to-oil, integral to driver side of radiator tank
COOLING, TRANSMISSION Auxiliary external transmission oil cooler, heavy-duty air-to-oil
DRIVE 4-wheel drive
ENGINE Vortec 6.0L variable valve timing V8 SFI
EXHAUST Aluminized stainless-steel muffler and tailpipe
FRAME Hydroformed
FUEL TANK 36 gallon (136 liter)
PICKUP BOX Fleetside
REAR AXLE 3.73 ratio
RECOVERY HOOKS Front, frame-mounted
STABILITRAK Stability control system, includes electronic trailer sway control, intelligent brake assist and hill start assist
STEERING Power, recirculating ball
SUSPENSION, FRONT Independent, torsion bar with increased front GAWR, includes 35mm twin tube shock absorbers and 36mm front stabilizer bar
SUSPENSION, REAR 4 + 1 multi-leaf springs
SUSPENSION PACKAGE Handling/trailering, heavy-duty includes 46 mm piston monotube shocks and 34 mm front stabilizer bar
TIRE PRESSURE MONITOR CHECK TIRE PRESSURE will show on Driver Information Center (does not apply to spare tire)
TIRE, SPARE CARRIER Outside, winch-type mounted under frame at rear (orders with ZW9 pickup box delete will not include a spare tire carrier unless a
spare tire is ordered)
TIRES LT245/75R17 all-season blackwall (includes full-size spare)
TRANSFER CASE Floor-mounted shifter (requires 4-wheel drive models)
TRANSMISSION 6-speed automatic, heavy-duty, electronically controlled with overdrive and tow/haul mode (requires L96
Vortec 6.0L V8 SFI engine)
WHEELS 17" (43.2 cm) steel, includes NZ4 17" x 7.5" (43.2 cm x 19.1 cm) steel spare wheel. Spare not included with ZW9 pickup box delete
unless a spare tire is ordered
2011 Chevrolet Municipal Vehicles Technical Manual
4 | sILvEraDo 2500hD crEw cab 4wD work truck - 1wt
POWERTRAIN
TRANSMISSION AXLE GVWR lbs (kg)
MYD MW7 Allison 1000
ENGINE
6-speed 6-speed auto. GT4 GT5
auto. with OD 3.73 4.10
STANDARD
CK20743 L96
Vortec 6.0L variable valve timing V8 SFI S — S A GEH 9,500 (4,309)
CK20943 L96
Vortec 6.0L variable valve timing V8 SFI S — S A CHM 9,900 (4,490)
OPTIONAL
LML/LGH Duramax 6.6L turbo diesel V8, B20-diesel
compatible (requires MW7 Allison 1000 6-speed — S S — C7A 10,000 (4,536)
automatic transmission; includes TUV heavy-duty
dual, 730 cca battery and K05 engine block heater)
S = Standard
A= Available
FE9 FEDERAL EMISSIONS. Use for ordering vehicles that will be registered in all states except California, Connecticut, Maine, Maryland,
Massachusetts, New Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington State
YF5
CALIFORNIA EMISSIONS. Use for ordering vehicles that will be registered in California.
NE1
CT/ME/MD/MA/NJ/NM/NY/OR/PA/RI/VT/WA EMISSIONS. Use for ordering vehicles that will be registered in Connecticut, Maine,
Maryland, Massachusetts, New Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont or Washington State
NB8
Required when option code FE9 “FEDERAL EMISSIONS” is ordered for delivery to a dealer located in California, Connecticut,
Massachusetts, Maryland, New Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island and Washington State for a
purchaser who will be registering the vehicle outside California, Connecticut, Maine, Maryland, Massachusetts, New Jersey, New
Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington State.
NC7
Required when option code YF5 “CALIFORNIA EMISSIONS” or option code NE1 "CT/ME/MD/MA/NJ/NM/NY/OR/PA/RI/VT/WA
EMISSIONS" is ordered for delivery to a dealer located in any state except California, Connecticut, Maine, Maryland, Massachusetts,
New Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington for a purchaser who will be
registering the vehicle in one of these states or sold as permitted below under “EPA Policy on the Sale of California Emission Vehicles”
NB9
Required when option code YF5 is ordered for delivery to a dealer located in Connecticut, Maine, Maryland, Massachusetts, New
Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington. Required when option code NE1 is
ordered for delivery to a dealer located in California.
Requirements for Diesel Engines in Vehicles Over 14,000 lbs GVWR: Different requirements apply to vehicles weighing over 14,000 lbs GVWR
that are equipped with diesel engines. These requirements impact the Chevrolet Express and GMC Savana Vans weighing over 14,000 lbs
GVWR that are equipped with the 6.6-liter Duramax diesel engine (LMM). For these vehicles, a different set of states has adopted California
emission requirements, specifically, California, Connecticut, Delaware, Georgia, Maine, New Jersey, North Carolina and Pennsylvania. And GM
has established a different set of emission options for use by dealers as follows.
CEJ FEDERAL EMISSIONS. Use for ordering vehicles that will be registered in all states except California, Connecticut, Delaware, Georgia,
Maine, New Jersey, North Carolina and Pennsylvania.
YF5
CALIFORNIA EMISSIONS. Use for ordering vehicles that will be registered in California. Note: No 14,200 lb product offering available
except for models with option packages ANC, B3D, YF1, or YF2
CEI
CT/DE/GA/ME/NJ/NC/PA EMISSIONS. Use for ordering vehicles that will be registered in Connecticut, Delaware, Georgia, Maine, New
Jersey, North Carolina and Pennsylvania. Note: No 14,200 lb product offering available except for models with option packages ANC,
B3D, YF1, or YF2.
GM has also established a different set of emission overrides as follows.
CEK Required when option code CEJ “FEDERAL EMISSIONS” is ordered by a dealer located in California, Connecticut, Delaware, Georgia,
New Jersey, North Carolina and Pennsylvania for a purchaser who will be registering the vehicle outside California, Connecticut,
Delaware, Georgia, Maine, New Jersey, North Carolina and Pennsylvania. Do not use for vehicles that will be registered in California,
Connecticut, Delaware, Georgia, Maine, New Jersey, North Carolina or Pennsylvania.
CEM
Required when option code YF5 “CALIFORNIA EMISSIONS” or option code CEI “CT/DE/GA/ME/NJ/NC/PA EMISSIONS" is ordered by a
dealer located in any state except California, Connecticut, Delaware, Georgia, New Jersey, North Carolina and Pennsylvania.
EMISSIONS - MUST BE SPECIFIED
2011 Chevrolet Municipal Vehicles Technical Manual
sILvEraDo 2500hD crEw cab 4wD work truck - 1wt | 5
SEATS AND INTERIOR TRIM
INTERIOR
SEAT TYPE SEAT OPTION SEAT TRIM DARK
TITANIUM
STANDARD
Front: 40/20/40 split-bench with fold-down armrest AE7 Vinyl
†
88V
WORK TRUCK Rear: 60/40 folding bench
OPTIONAL
Front: 40/20/40 split-bench with fold-down armrest and manual driver lumbar AE7 Cloth
††
88B
WORK TRUCK Rear: 60/40 folding bench
†- Vinyl seats require BG9 Black rubberized-vinyl floor covering
††- Seats are Ebony seating surfaces and Ebony bolsters
DIMENSIONS (in./mm)
LOCATION CK20743 4X4 CREW CAB CK20943 4X4 CREW CAB
STANDARD BOX LONG BOX
Wheelbase 153.70/3904 167.70/4260)
Overall length 240.20/610 259.10/6581
Body width 80.00/2032 80.00/2032
Overall height 78.10/1984 78.10/1984
Head room, front 41.30/1049 41.30/1049
Head room, rear 40.60/1031 40.60/1031
Shoulder room, front 65.20/1656 65.20/1656
Shoulder room, rear 65.20/1656 65.20/1656
Hip room, front 60.30/1532 60.30/1532
Hip room, rear 65.50/1664 65.50/1664
Leg room, front 41.30/1049 41.30/1049
Leg room, rear 39.00/991 39.00/991
Cab to axle 41.60/1057 55.60/1412
Front bumper to axle 38.80/986 38.80/986
Rear bumper to axle 52.60/1336 52.60/1336
Inside length, at floor 78.80/2002 97.80/2484
Inside height 21.00/533 21.00/533
Inside width, at floor 62.50/1588 62.50/1588
Tailgate width, top 61.60/1565 61.60/1565
Front bumper to back of cab 150.90/3833 150.90/3833
Ground to top of rear load floor 37.90/963 37.80/960
Inside width, between wheelhousing 50.60/1285 50.60/1285
Ground clearance, front 9.75/248 9.75/248
Ground clearance, rear 8.20/208 8.20/208
Note: Published dimensions indicated are without optional equipment or accessories. Additional accessories or equipment ordered at the customer’s request can result in a
minor change in these dimensions.
2011 Chevrolet Municipal Vehicles Technical Manual
6 | sILvEraDo 2500hD crEw cab 4wD work truck - 1wt
SEO PAINT AVAILABLE
WA# COLOR DESCRIPTION CODE
228A Light Autumnwood Metallic
253A Wheatland Yellow 9W3
334D Dark Toreador Red
382E Pewter
454N Blue
769H Blue
770H Orange
815K Arrival Blue
926L Silver Burch Metallic
5248 Yellow
5405 Blue Metallic
5445 Yellow
5456 Yellow
5663 Blue
5758 Green
7154 Blue
7159 Blue Metallic
7840 Gray Metallic
7941 Green
9015 Woodland Green 9V5
9403 Doeskin Tan 9V9
9414 Yellow
9417 Tangier Orange 9W4
9419 Orange
9539 Green Metallic
9792 Indigo Blue
ACTUAL COLOR MAY VARY
Note: • Door handles and mirrors will be Flat Black. Deletes standard/package body side mold ings.
• All normally body-colored non-sheet metal parts, will be Flat Black
• SEO paint orders that contain less than five vehicles will be delayed until five unit minimum is received for
batch production
Special paint also available through Kerr Industries
• Special paint is also available for PPV and 5W4 Tahoes.
• This work is done as part of the Kerr Industries dealer direct program
• A minimum order is not required with this program. Please see the Kerr Industries
CD for further detai ls or you can contact Kerr Industries at 905-725-6561 to
discuss your requirements
46U
37U 74UGGU41U 50U
Imperial Blue
Metallic
Black Blue Granite
Metallic
Summit White Steel Green
Metallic
Victory Red
GGW
Taupe Gray
Metallic
GGZ
Sheer Silver
Metallic
Actual colors may vary
AVAILABLE EXTERIOR COLORS
2011 Chevrolet Municipal Vehicles Technical Manual
sILvEraDo 2500hD crEw cab 4wD work truck - 1wt | 7
AVAILABLE OPTIONS
KW1 ALTERNATOR, 160 AMPS - Included with VYU Snow Plow Prep Package when L96 Vortec 6.0L V8 SFI engine is ordered; requires L96 Vortec 6.0L
V8 SFI engine
K76 ALTERNATOR, DUAL, 125 AMPS EACH - Requires LML/LGH Duramax 6.6L turbo diesel V8 engine
US8 AUDIO SYSTEM - AM/FM stereo with MP3 compatible CD player, seek-and-scan, digital clock, auto-tone control, Radio Data System (RDS), speed-compensated
volume and theftlock, required with U2K XM Radio.
8S3 BACKUP ALARM, 97 DECIBELS - Not available with RPO UY2 wiring provisions
SFW BACKUP ALARM CALIBRATION - Provides calibration to disable backup lamps portion of perimeter lamps, this calibration will allow installation of an aftermarket
backup alarm, not available with SEO 8S3 backup alarm or UY2 trailering wiring provisions
TP2 BATTERY, AUXILIARY HEAVYDUTY - 600 cca, maintenance-free; not available with LML or LGH Duramax 6.6L turbo diesel V8 engine.
6C5 BATTERIES, SINGLE - 730 cca provides a heavy-duty 730 cca battery, replacing the standard 600 cca battery (requires RPO L96 Vortec 6.0l V8 SFI engine; not
available with RPO TP2 auxiliary battery)
TUV BATTERY, HEAVYDUTY DUAL 730 CCA MAINTENANCEFREE - Rundown protection and retained accessory power (included and only available with LML/LGH
Duramax 6.6L turbo diesel V8 engine)
UPF BLUETOOTH FOR PHONE10 - Personal cell phone connectivity to vehicle audio system; includes K34 cruise control, UK3 steering wheel-mounted audio controls
and NP5 leather-wrapped steering wheel, requires UE1 OnStar8 and US8 AM/FM stereo with MP3 compatible CD player, not available with UE0 OnStar delete or
UM7 AM/FM stereo
K40 BRAKE, EXHAUST - Included and only available with LML or LGH Duramax 6.6L turbo diesel V8 engine
JL1 BRAKE CONTROLLER, INTEGRATED TRAILER - (With E63 fleetside pickup box, requires Z82 heavy-duty trailering equipment)
VF7 BUMPER, REAR DELETE - (Vehicles registered in certain states must have a rear bumper to be operated on their roads, consult local laws) (not available with Z82
heavy-duty trailering equipment, PCW Safety Package, SAF spare tire lock or ZW9 pickup box delete)
5V1 CARRIER WITH SPARE WHEEL  NO TIRE - Includes spare wheel and tire carrier with a spare wheel but with no spare tire; requires models **209*3 and RPO ZW9
pickup box delete, not available with RPO ZIZ spare tire or SEO 4GK spare tire
V10 COVERS, RADIATOR GRILLE AND FRONT BUMPER OPENINGS - For diesel engines in winter weather (requires LML/LGH Duramax 6.6L turbo diesel V8 engine
and is required on orders with “ship to” locations within the following states: Maine, New Hampshire, Vermont, Minnesota, North Dakota, South Dakota, Montana,
Alaska, Idaho, Wisconsin, Wyoming, Michigan, Colorado and New York)
K34 CRUISE CONTROL, ELECTRONIC - Set and resume speed, located on steering wheel; included with UPF Bluetooth for phone10
9R1 DECAL DELETE, PICKUP BOX - Deletes either the “4x4” or “Z71” decal from the side of the pickup box (requires E63 fleetside pickup box; not available with SEO
8F2 ornamentation delete)
9M4 DECAL DELETE, TAILGATE - Deletes all nameplates and decals on the pickup box tailgate (requires RPO E63 fleetside pickup box; not available with SEO 8F2
ornamentation delete)
C49 DEFOGGER - Rear-window electric
G80 DIFFERENTIAL, REAR - Heavy-duty automatic locking rear
LML ENGINE - Duramax 6.6L turbo diesel V8, B20-diesel compatible (397 hp [296.0 kW] @ 3000 rpm, 785 lb-ft of torque [1032.8 N-m] @ 1600 rpm); requires MW7
Allison 1000 6-speed automatic transmission, includes K40 exhaust brake, TUV heavy-duty dual, 730 cca battery and K05 engine block heater, not available with
ZW9 pickup box delete
LGH ENGINE - Duramax 6.6L V8 turbo diesel V8, B20-diesel compatible (335 hp [249.8 kW] @ 3100 rpm, 685 lb-ft of torque [924.8 N-m] @ 1800 rpm); requires MW7 Allison
1000 6-speed automatic transmission and ZW9 pickup box delete, includes K40 exhaust brake, TUV heavy-duty dual, 730 cca battery and K05 engine block heater
K05 ENGINE BLOCK HEATER
5H5 FIRE EXTINGUISHER - A 2.5 lb. dry chemical fire extinguisher; shipped loose in cab area for later placement and securing in after-market installation
B30 FLOOR COVERING, COLORKEYED CARPETING - Rubberized-vinyl floor mats (extended and crew cab models also include rear floor mats) (requires 88B Dark
Titanium cloth seat trim)
AJ1 GLASS, SOLARRAY DEEPTINTED - All windows except light-tinted glass on windshield and driver and front passenger side glass with crew cab models or C49
rear window defogger, includes light-tinted rear window
9B9 GOVERNOR 70 MPH - Provides electronic software to facilitate 70 mph maximum road speed
7Z1 HORN, HIGH NOTE - High note horn in addition to the base low note horn
8V2 JACK AND TOOLS DELETE - Deletes the jack and tire change tools that are standard (requires a fleet or government sales order)
5H1 KEY EQUIPMENT - 2 additional spare keys for a total of 4 vehicle keys; requires RPO E63 pickup box and RPO SAF spare tire lock. Not available with SEO AU0 remote
keyless entry
8X1 LABEL, FASTEN SAFETY BELTS - “Fasten safety belts” reminder label on side door window glass
8. Visit OnStar.com for coverage map, system limitations and details.
10. Go to gm.com/bluetooth to find out which Bluetooth phones are compatible with the vehicle.
2011 Chevrolet Municipal Vehicles Technical Manual
sILvEraDo 2500hD crEw cab 4wD work truck - 1wt | 9
AVAILABLE OPTIONS (CONTINUED)
TGK PAINT, SOLID, SPECIAL - one color all normally body-colored non-sheet metal parts will be Flat Black. Door handles and mirrors will be Flat Black. This deletes the
standard/packaged body-side moldings; requires 01U Special Paint with any special paint selection. May require an extended lead time. RPO B85 body-colored
body side moldings, will be deleted when SEO TGK special paint is ordered.
9L4 POWER SUPPLY, 12VOLT DIRECT POWER SUPPLY FROM THE BATTERY - With two (2) separate 30-amp fused circuits; each circuit has a 30-amp mini-fuse for
both positive and ground to protect electrical accessories; main supply lead has a 60-amp maxi-fuse; all fuses are serviceable; provides either direct battery power
or operation through the ignition system; hook-up wire is located at the front of the floor console; operational amperage is 21-amps each circuit, 42-amps total;
hook-up and operational instructions are provided; (requires a fleet of government sales order; requires RPO UE0 OnStar delete and RPO U2J XM Satellite Radio
delete; not available with RPO U42 entertainment system, RPO TP2 auxiliary heavy-duty battery, RPO LML/LGH Duramax 6.6L turbo diesel V8 engine or RPO JF4 power-
adjustable pedals)
5B5 POWER WINDOWS, LOCKS AND MIRRORS, WITH UPLEVEL DOOR PANELS ON A BASE TRIM LEVEL VEHICLE - Provides power driver and passenger front side
windows with uplevel door panels on a base level vehicle; includes RPO DL8 outside heated power-adjustable manual folding mirrors, RPO AU3 power door locks
and RPO UQ3 speaker system audio system feature; C/K***43 models include rear door power windows and locks; power mirrors can be upgraded to SEO 6P3
camper, power-adjustable glass, manual extendable, heated mirrors; RPO AU0 remote keyless entry becomes optional on all models and must be ordered and
priced if desired) (not available with C42 air conditioning delete)
TRW PROVISION FOR CAB ROOFMOUNTED LAMP/BEACON - Provides an instrument panel-mounted switch and electrical wiring tucked beneath the headliner for a
body upfitter to connect a body-mounted warning or emergency lamp; 30-amp nominal rating (not available with PDD Convenience Package, CF5 power sunroof
or UG1 universal home remote; included with VYU Snow Plow Prep Package)
GT5 REAR AXLE - 4.10 ratio (requires L96 Vortec 6.0L V8 SFI engine)
AU0 REMOTE KEYLESS ENTRY - With 2 transmitters, panic button and content theft alarm, optional on all models when SEO 5B5 power windows, locks and mirrors is
ordered; (requires SEO 5B5 power windows, locks and mirrors)
5H6 SAFETY REFLECTOR TRIANGLE KIT - Break-down warning kit consisting of three (3) reflective triangles; shipped loose in the cab area for later placement and
securing in after-market installation
88B SEAT TRIM - Dark Titanium cloth
AM1 SEAT ADJUSTER, MANUAL LUMBAR CONTROL ON THE DRIVERSIDE - (Included and only available with 88B Dark Titanium cloth seat trim)
9U3 SEATS, DRIVER AND PASSENGER FRONT INDIVIDUAL SEATS IN CLOTH TRIM - Derived from RPO AE7 40/20/40 split-bench with center 20% section removed;
seats are manual, not power and include driver's side only lumbar; does not include floor console; exposed floor areas will remain untrimmed; cloth rear seats with trim
matching front seats will be provided on extended and crew cab models; (requires trim code 88B Dark Titanium)
9S1 SEATS, DRIVER AND PASSENGER FRONT INDIVIDUAL SEATS IN VINYL TRIM - Derived from RPO AE7 40/20/40 split-bench with center 20% section removed;
seats are manual, not power; does not include floor console; exposed floor areas will remain untrimmed; standard vinyl rear seat with trim matching front seats
will be provided on crew cab models (requires trim code 88V Dark Titanium)
9U5 SINGLE BULB TAIL LAMP CALIBRATION - For bulb outage detection used on aftermarket bodies. Requires ZW9 box delete
NZZ SKID PLATE PACKAGE, FRAMEMOUNTED SHIELDS - Includes front underbody shield starting behind front bumper and running to first cross member,
protecting front underbody, oil pan, differential case and transfer case (included with VYU Snow Plow Prep Package)
VYU SNOW PLOW PREP PACKAGE - Includes 10-amp power for backup and roof emergency lamp, high-flow front bumper, forward lamp wiring harness, TRW provision
for cab roof mounted lamp/beacon, instrument panel jumper wiring harness for electric trailer brake controller and NZZ Skid Plate Package; requires 4WD models.
Includes KW1 160-amp alternator with L96 Vortec 6.0L V8 SFI engine. Includes K76 dual 125-amp alternators with LML/LGH Duramax 6.6L turbo diesel V8 engine
9L3 SPARE TIRE DELETE - Deletes the spare tire only; spare wheel and carrier remain; (requires E63 pickup box)
SAF SPARE TIRE LOCK - Keyed cylinder lock that utilizes same key as ignition and door (not available with ZW9 pickup box delete or VF7 rear bumper delete)
5Z4 SPARE WHEEL AND CARRIER DELETE - Deletes the base spare wheel and carrier; does not delete jack or tools (requires SEO 9L3 spare tire delete and RPO E63
pickup box; not available with RPO SAF spare tire lock)
VXH STEPS ASSIST, CHROMED TUBULAR - 6" oval (dealer installed); not available with VXJ 3" round tubular assist steps,
VXJ STEPS ASSIST, CHROMED TUBULAR - 3" round (dealer installed); not available with VXH 6" oval tubular assist steps or LML/LGH Duramax 6.6L turbo diesel V8 engine
UF3 SWITCH, HIGH IDLE - (Requires K34 cruise control)
ZXT TIRE, SPARE - LT265/70R17E all-terrain, blackwall; included and only available with QXT LT265/70R17E all-terrain, blackwall tires. Available to order when ZW9
pick-up box delete is ordered
ZWF TIRE, SPARE - LT265/70R18E all-season, blackwall; included and only available with QGM LT265/70R18E all-terrain tires or QWF LT265/70R18E all-season tires.
Available to order when ZW9 pickup box delete is ordered
2011 Chevrolet Municipal Vehicles Technical Manual
10 | sILvEraDo 2500hD crEw cab 4wD work truck - 1wt
AVAILABLE OPTIONS (CONTINUED)
QGM TIRES - LT265/70R18E all-terrain, blackwall; requires PYT 18" (45.7 cm) painted steel wheels
QWF TIRES - LT265/70R18E all-season, blackwall; requires PYT 18" (45.7 cm) painted steel wheels
Z82 TRAILERING EQUIPMENT, HEAVYDUTY - Includes trailering hitch platform and 2.5-inch receiver with 2-inch adapter, 7-wire harness (harness includes wires for:
park lamps, backup lamps, right turn, left turn, electric brake lead, battery and ground) with independent fused trailering circuits mated to a 7-way sealed
connector, wiring harness for after-market trailer brake controller (located in the instrument panel harness), and single wire for center high-mounted stop lamp
(not available with ZW9 pickup box delete or VF7 rear bumper delete)
MW7 TRANSMISSION, ALLISON 1000 6SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED - Overdrive, electronic engine grade braking and tow/haul mode
(requires LML/LGH Duramax 6.6L turbo diesel V8 engine)
ZHQ TIRE, SPARE - LT245/75R17E all-season, blackwall; included with QHQ LT245/75R17 all-season, blackwall tires. Available to order when ZW9 pickup box delete is
ordered
UY2 TRAILERING WIRING PROVISIONS, FOR CAMPER, FIFTH WHEEL AND GOOSENECK TRAILER - includes additional 7-way wiring harness routed to front of
pickup box; requires Z82 heavy-duty trailering equipment
U2K XM RADIO9 - Includes three trial months of service; requires US8 AM/FM stereo with MP3 compatible CD player and UE1 OnStar8. XM service available only in the
48 contiguous United States and the District of Columbia. XM Radio subscription required and sold separately after trial period. Fees, taxes, and a one-time
re-activation fee, may apply. Subscriptions governed by XM Customer Agreement available at xmradio.com. All fees and programming subject to change. Family
programming packages are available
PYN WHEELS - 4-17" x 7.5" (43.2 cm x 19.1 cm) 8-lug chrome-styled steel, includes chrome center caps and steel spare (spare wheel will not cosmetically match the
other 4 wheels) spare not included with ZW9 pickup box delete unless a spare tire is ordered
PYT WHEELS - 18" (45.7 cm) painted steel
PYP WHEELS - 17" (43.2 cm) chrome-clad steel; includes NZ4 17" x 7.5" (43.2 cm x 19.1 cm) steel spare wheel. Spare not included with ZW9 pickup box delete unless a
spare tire is ordered
8. Visit OnStar.com for coverage map, system limitations and details.
9. XM Radio requires a subscription, sold separately by XM after the trial period. Not available in Canada, Alaska or Hawaii. For more information, visit gm.xmradio.com.
2011 Chevrolet Municipal Vehicles Technical Manual
sILvEraDo 2500hD crEw cab 4wD work truck - 1wt | 11
(GCWR) GROSS COMBINATION WEIGHT RATINGS lbs. (kg)
ENGINE 16,000 7,258 20500 9299 24500 11113
L96 Vortec 6.0l variable valve timing V8 SFI 3.73 4.10 —
LML/LGH Duramax 6.6L turbo diesel V8 — — 3.73
GCWR - ENGINE/REAR AXLE RATIO COMBINATION WITH AUTO TRANSMISSION
CREW CAB SPECIFICATIONS
CK20743 CK20943
4X4 CREW CAB 4X4 CREW CAB
STANDARD BOX LONG BOX
SPECIFICATIONS
Front shock absorber diameter, in. (mm) 1.38 (35) 1.38 (35)
Front stabilizer bar diameter, in. (mm) 1.31 (33) 1.31 (33)
Rear shock absorber diameter, in. (mm) 1.38 (35) 1.38 (35)
Turning diameter, curb-to-curb, ft. (m) 50.5 (15.4) 54.8 (16.7)
CAPACITIES
Front axle, L96, lbs. (kg) 4800 (2177) 4800 (2177)
Front axle, LML/LGH, lbs. (kg) 5200 (2359) 5600 (2540)
Front spring capacity, L96, lbs. (kg) 4800 (2177) 4800 (2177)
Front spring capacity, LML/LGH, lbs. (kg) 5200 (2177) 5600 (2540)
Rear axle, lbs. (kg) 6200 (2812) 6200 (2812)
Rear spring capacity, lbs. (kg) 6200 (2812) 6200 (2812)
Curb weight (L96 engine), lbs. (kg) 6377 (2893) 6525 (2960)
Curb weight (LML/LGH engine), lbs. (kg) 7208 (3270) 7387 (3351)
Cargo volume
3
, cargo box, cu. ft. (liters) 60.7 (1719.0) 75.5 (2138.2)
Payload
6
, L96, lbs. (kg) 3123 (1417) 3375 (1531)
Payload
6
, LML/LGH, lbs. (kg) 2792 (1266) 2613 (1185)
Gross Vehicle Weight Rating
5
(GVWR), L96, lbs. (kg) 9500 (4309) 9900 (4491)
Gross Vehicle Weight Rating
5
(GVWR), LML/LGH lbs. (kg) 10000 (4536) 10000 (4536)
Front Gross Axle Weight Rating (FGAWR), L96, lbs. (kg) 4400 (1996) 4800 (2177)
Front Gross Axle Weight Rating (FGAWR), LML/LGH, lbs. (kg) 5200 (2359) 5600 (2540)
Rear Gross Axle Weight Rating, lbs. (kg) 6200 (2812) 6200 (2812)
Fuel capacity, approximate, gallon (liters) 36 (136) 36 (136)
Seating capacity 6 6
AUTOMATICE TRANSMISSION - WITH BALL HITCH
(L96) VORTEC 6.0L (LML) DURAMAX 6.6L
VARIABLE VALVE TIMING V8 SFI TURBO DIESEL V8
AXLE RATIO MAXIMUM AXLE RATIO MAXIMUM
WEIGHT LBS. (KG) TRAILERING
7
WEIGHT LBS. (KG) TRAILERING
7
3.73 9400 (4264) 3.73 13000 (5897)
4.10 13000 (5897) — —
3.73 9300 (4218) 3.73 13000 (5897)
4.10 13000 (5897) — —
Addition of trailer tongue weight cannot cause vehicle weights to exceed Rear Gross Axle Weight Rating (RGAWR) of Gross Vehicle Weight Rating (GVWR)
5
.
(Z82) Trailering equipment, heavy-duty, includes trailer hitch platform and trailer electrical connector.
CK20743
MODEL
CK20943
3. Cargo and load capacity limited by weight and distribution.
5. Gross Vehicle Weight Rating (GVWR). When properly equipped, includes vehicle, passengers, cargo and equipment.
6. Maximum payload capacity includes weight of driver, passengers, optional equipment and cargo.
7. Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver.
The weight of other optional equipment, passengers and cargo will reduce the maximum trailer weight your vehicle can tow.
2011 Chevrolet Municipal Vehicles Technical Manual
12 | aIr bags faq
Can specialty vehicle equipment (e.g. radar devices, video
cameras, computers, meters, radio trees, shotguns, etc.) still be
mounted in cars with passenger side air bags?
Yes, but care must be taken to mount the equipment outside of the deployment zone.
Air bags inflate with great force and will interact with any object in the deployment
zone. Therefore, to reduce the risk of injury to vehicle occupants, GM recommends
that the air deployment zone be kept free of any equipment. If a piece of equipment
were to become dislodged it could strike an occupant in the vehicle and result in
injury. The likelihood of an object becoming dislodged is influenced by many factors,
including the proximity of the object to the inflatable restraint, the size and shape of
the object, and the means by which the object is secured to the vehicle. In addition to
these factors, the trajectory and velocity of a dislodged object can be influenced by
the type and severity of vehicle crash.
Objects that are in the deployment zone, but do not become dislodged by an inflating
air bag can still affect the performance of the air bag. For example, such objects could
tear the fabric or affect the shape of the air bag, thus reducing the ability of the bag
to provide restraint.
Is it possible to shield equipment that is installed in the passenger
side frontal air bag deployment zone in a manner that will allow
full and safe air bag deployment?
Due to the complexity of influencing variables, GM is unable to evaluate the potential
for shielding expected equipment configurations in all accident scenarios in order
to assure that the air bag performance would be unaffected. While shielding may
protect certain equipment from being damaged or dislodged, it may also negatively
affect the inflation characteristics of the air bag. The air bag’s shape, inflation angle,
fold pattern, and inflation rate and pressure are developed to maximize the
protection capability of the inflatable restraint system. Therefore, GM cannot
recommend the placement of any equipment in the deployment zone, even if it is
shielded to protect it from damage.
Front air bag systems and instrument panel mounted equipment.
Passenger air bags in GM vehicles deploy in different ways depending upon the type
of vehicle and the particular instrument panel design.
In some vehicles, the passenger air bag deploys through a discrete door located on
the top surface of the instrument panel (top-mount air bag systems). In other
vehicles, such as the Chevrolet Tahoe, the passenger air bag deploys through a
discrete door mounted on the vertical rearward surface of the instrument panel,
above the glove box door (mid-mount air bag system). With these types of top-
mount and mid-mount passenger air bag systems, the top pad of the instrument
panel remains in place during deployment.
Some GM passenger air bag systems, like the system in the Chevrolet Impala, deploy
from beneath the instrument panel top pad. These are considered 3/4-mount air bag
systems with a “deployable top pad.” The entire instrument panel top pad is the
“deployment door” from under which the inflating air bag emerges. When an air bag
deployment is commanded, the forces from the inflating passenger air bag push up
on the instrument panel top pad, releasing special fasteners across the rearward edge
of the top pad. This allows the top pad to rotate upward so that the passenger air bag
may emerge. The top pad rotates upward to open widest at the right hand side, and
is usually forced upward into contact with the windshield on the right hand side of
the vehicle during a deployment.
Instrument panel top mounted special equipment, such as a radar antenna and
control unit or video camera must be positioned to the left of the vehicle center line.
This equipment must be mounted as low as possible and securely fastened to the top
pad to avoid being dislodged in the event of a crash and possible air bag deployment.
In the process of securely fastening special equipment to the top, DO NOT fasten
down the top pad itself to any other vehicle component such as the cluster trim plate.
As described above, the top pad rotates upward during a deployment. In order to
enable the proper deployment of the passenger air bag, specialty equipment
installation MUST NOT PREVENT the top pad from rotating upward during
deployment. Location and attachment of special equipment should minimize added
resistance or interference to upward rotation of the top pad during deployment.
Optional side air bags for crashes to the vehicle sides.
The air bag system in your police vehicle may include optional side air bags for front
and rear occupants. Most front-to-rear side air bags are designed to deploy
downward from the interior roof sides to the bottom of the door windows.
Can Specialty Vehicle Security Barriers be mounted within the side
air bag deployment zones?
No. The side air bags inflate extremely fast because of the nature of side crashes to
the vehicle. Mounting a security barrier behind the front seats with the ends placed
within the side air bag deployment zones will result in unintended interaction
between the barrier and the inflating side air bags. To reduce the risk of injury to the
vehicle occupants, GM recommends that the side air bag zones be kept free of any
customer installed equipment.
Customer furnished equipment installed to the vehicle roof.
Your police vehicle is designed with an interior roof cover system which includes
internal components for the interior lamps and wiring. The roof system may also
include optional side air bag components. Inflation devices may be mounted on the
vehicle roof side behind the rear doors as well as air bag tethers retained to the
windshield pillars. Care must be taken to avoid damage to these components
or interference with their operation when installing roof mounted equipment such
as emergency lamps and communication antennas.
Recommended GM service procedures must be followed to remove
and re-install the instrument panel top pad to ensure that the top
pad will release properly in the event of a passenger air bag
deployment.
On the right half of the top pad closest to the passenger air bag module,
GM recommends that no equipment be mounted. When mounting equipment on the
driver side of the top pad, GM recommends that the total mass of the top pad
mounted special equipment not exceed 8 pounds (3.6 kilograms), since the top pad
tends to rotate about the left end.
Fasteners used to secure special equipment to the instrument panel top pad, the
windshield glass, or to the windshield upper frame (header), should be selected to
ensure that these devices will remain attached during a vehicle crash and possible
air bag deployment.
Head curtain side air bags are designed to help reduce the risk of head and neck injuries to front and rear seat occupants on the near side of certain side-impact collisions. Always
use safety belts and the correct child restraints for your child’s age and size, even in vehicles equipped with air bags. Children are safer when properly secured in a rear seat. See
your vehicle Owner’s Manual and child safety seat instructions for more information.
2011 Chevrolet Municipal Vehicles Technical Manual
aIr bags faq | 13
Can the installation of push bumpers on the front end of the
vehicle affect the deployment of the air bag?
General Motors is not aware of adverse effects during crash events from the many
push bumpers that have been installed on GM police vehicles. Because there are
many styles of push bumpers available with varying crash characteristics, installation
of push bumpers may or may not affect deployment timing of the air bags. Push
bumpers should be mounted to avoid modifying the vehicle structure and interfering
with the front air bag sensors mounted on the upper radiator support cross member.
Two front impact sensors are installed in General Motors vehicles. Do not relocate or
disconnect the front sensors. The location and orientation of the front sensors are
critical for correct operation of the air bag system. Avoid mounting components on or
near the sensors. Push bumper styles with vertical pushing members that are in fore-
aft alignment with the front air bag sensors are not recommended.
How long will the air bag remain inflated?
It takes approximately 1/20th of a second to fully inflate the frontal air bags. This is
faster than the blink of an eye. The air bags begin to deflate immediately, helping to
stop the occupants more gradually.
Can the air bag system be re-used?
No. The air bags are designed to inflate only once. After inflation some new parts
will be required. These will include the air bag module and possibly other parts. (A
competent service technician with access to the vehicle’s service manual and the
required tools should replace the required components after a deployment crash.)
I’ve heard that the dusts that are released into the passenger
compartment from the air bag are harmful. Is this true?
For most people, the only effect the dusts will produce is some irritation of the throat
and eyes, and that is only if the occupant remains in the vehicle for many minutes
after the air bag deployment with no ventilation and windows closed. However, some
people with asthma may develop an asthmatic attack from inhaling the dusts. If this
happens, they should first treat themselves the same way their doctor has advised
them to treat any other asthma attack, and then immediately seek medical
treatment.
When should an air bag inflate?
The driver’s and right-front passenger’s frontal air bags are designed to inflate in
moderate to severe frontal or near-frontal crashes. But they are designed to inflate
only if the impact speed is above the system’s designed "threshold level."
In addition, if your vehicle has "dual stage" frontal air bags, these air bags tailor the
amount of restraint according to crash severity. For moderate frontal impacts, the air
bags inflate at a level less than full deployment. For more severe frontal impacts,
"dual stage" frontal air bags deploy at full levels.
If the front of your vehicle goes straight into a wall that doesn’t move or deform, the
threshold level of the reduced deployment is about 12 to 16 mph (19 to 15 km/h),
and the threshold level for a full deployment is about 18 to 24 mph (29 to 28.5
km/h). The threshold level can vary, however, with specific vehicle design, so that it
can be somewhat above or below this range.
If your vehicle strikes something that will move or deform such as a parked car, the
threshold level will be higher. The driver’s and right-front passenger’s frontal air bags
are not designed to inflate in rollover, side impacts, or rear impacts, because inflation
would not help the occupant.
Seat mounted side impact air bags are designed to inflate in moderate to severe side
crashes. The side impact air bags will inflate if the crash severity is above the
designed "threshold level." The threshold level can vary with specific vehicles design.
The side impact air bags are not designed to inflate on frontal or near-frontal impacts
or rear impacts, because inflation would not help the occupant.
Roof rail mounted head-curtain airbags are designed to inflate in moderate to severe
side crashes. In addition, certain vehicles have head-curtain air bags which are also
designed to inflate in situations where an impending rollover condition is identified
by the vehicle’s rollover sensing system and/or frontal or near-frontal impacts if the
crash severity is above the designed “threshold level”.
Safety belt pretensioners at the driver and front passenger seat positions are
designed to deploy in frontal, near-frontal, side, and rear crashes that exceed the
“threshold level” of crash severity to help reduce slack in the safety belt. Safety belt
pretensioners will also deploy in impending rollover situations.
I’ve heard that a deployed air bag produces what appears to be
smoke. Is the air bag hot?
After the bag has deployed in a crash, the air bag itself will not be hot to touch. Some
components within the air bag module will be hot for a short time. A small amount
of smoke coming from a deployed air bag module is normal and should not be cause
for concern.
Also, when the nitrogen gas is vented out of the air bag, small particles from inside
the bag are also vented into passenger compartment. These airborne particles look
like smoke and some particles are deposited as residue on and around the air bag.
If my vehicle has air bags, why should I have to wear my safety
belt?
Air bags are in many vehicles today and will be in most of them in the future. But
they are supplemental systems only; so they work with safety belts - not instead of
them. Every air bag system ever offered for sale has required the use of safety belts.
Even if you’re in a vehicle that has air bags, you still have to buckle up to get the most
protection. That’s true not only in frontal collisions but especially in side and other
collisions.
Head curtain side air bags are designed to help reduce the risk of head and neck injuries to front and rear seat occupants on the near side of certain side-impact collisions. Always
use safety belts and the correct child restraints for your child’s age and size, even in vehicles equipped with air bags. Children are safer when properly secured in a rear seat. See
your vehicle Owner’s Manual and child safety seat instructions for more information.
2011 Chevrolet Municipal Vehicles Technical Manual
14 | aIr bags
Head curtain side air bags are designed to help reduce the risk of head and neck injuries to front and rear seat occupants on the near side of certain side-impact collisions. Always
use safety belts and the correct child restraints for your child’s age and size, even in vehicles equipped with air bags. Children are safer when properly secured in a rear seat. See
your vehicle Owner’s Manual and child safety seat instructions for more information.
TOP VIEW OF INSTRUMENT PANEL AND APPROXIMATE
DEPLOYMENT AREA OF THE AIR BAG ZONE
A. Passenger side instrument panel top surface zone
B. Passenger side air bag module trim panel – rear edge
C. Passenger side door
D. Approximate dimensions of inflated air bag
E. Passenger side air bag deployment zone
F. Passenger centerline
G. Inside rearview mirror
H. Vehicle centerline
I. Driver centerline
J. Driver side air bag deployment zone
K. Front of steering wheel
L. Driver side door
M. Shift selector arc
2011 Chevrolet Municipal Vehicles Technical Manual
aIr bags faq | 15
SIDE VIEW OF DRIVER SIDE
AIR BAG DEPLOYMENT ZONE
A. Top edge of windshield
B. Top of instrument panel
C. Inflated air bag – steering wheel
D. Centerline of steering column at mid-tilt
E. Driver air bag deployment zone
F. Front of steering wheel
SIDE VIEW OF PASSENGER SIDE AIR BAG
DEPLOYMENT ZONE
A. Top edge of windshield
B. Inside rearview mirror
C. Instrument panel top surface zone
D. Passenger side air bag module trim panel – rear edge
E. Inflated air bag – horizontal dimension approximate 15.4 in (390 mm)
F. I
nflated air bag – vertical dimension approximate 9.3 in (490 mm)
G. Inflated air bag – instrument panel
H. Passenger air bag deployment zone
Head curtain side air bags are designed to help reduce the risk of head and neck injuries to front and rear seat occupants on the near side of certain side-impact collisions. Always
use safety belts and the correct child restraints for your child’s age and size, even in vehicles equipped with air bags. Children are safer when properly secured in a rear seat. See
your vehicle Owner’s Manual and child safety seat instructions for more information.
Note: All dimensions are approximate and subject to change.
2011 Chevrolet Municipal Vehicles Technical Manual
16 | aIr bags
Head curtain side air bags are designed to help reduce the risk of head and neck injuries to front and rear seat occupants on the near side of certain side-impact collisions. Always
use safety belts and the correct child restraints for your child’s age and size, even in vehicles equipped with air bags. Children are safer when properly secured in a rear seat. See
your vehicle Owner’s Manual and child safety seat instructions for more information.
HEAD CURTAIN AND FRONT SEAT-MOUNTED SIDE IMPACT AIR BAG DEPLOYMENT ZONES
PASSENGER SIDE SHOWN, DRIVER SIDE SIMILAR
A. Head curtain air bag deployment zone F. Seat centerline
B . Underside of headliner G. Bottom of door windows
C. Edge of headliner H. Front seat headrests
D. Inner center pillar trim I. Seat-mounted side impact air bags deployment zone front seat
E . Inner door pad J. Top surface of outboard front seat cushion
Tahoe/Suburban/Silverado Crew Cab Seat Rows 1 and 2
A.
Top of deployment zone – along head curtain at edge of headliner
B.
Back of deployment zone – at rear top corner of rear door pad
C. Rear quarter window
D.
Bottom outside edge of rear quarter window
E.
Bottom of air bag deployment zone – parallel to outside bottom edge of
rear quarter glass
F.
Top edge of rear door pad
G.
Top edge of front door pad
H. Dimension at mirror patch from top edge of front door pad
I.
Front of deployment zone at front upper corner of front door pad
J. Windshield pillar trim with grab handle
K. Visor
L.
Deployment zone - Tahoe seat rows 1 and 2
Tahoe/Suburban 3rd Row Seats
M.
Deployment zone - Tahoe 3rd seat
N.
Deployment zone - Suburban 3rd seat
O. Rear zones at back corner of headliner: 1 Tahoe, 2 Suburban
P
. Bottom of 3rd seat zone at rear side trim cup holders
Q. Top edge of rear quarter trim at window
R. Rear of Tahoe
S. Rear of Suburban
Tahoe/Suburban/Silverado Crew Cab Seat Air bag
T. Center of door trim pull handle
U. Top of surface of outboard front seat cushion
V. Back edge of center pillar trim
HEAD CURTAIN AND FRONT SEAT-MOUNTED SIDE IMPACT AIR BAG DEPLOYMENT ZONES
VIEW FROM REAR CARGO AREA
Note: The head curtain air bag inflators are mounted in a different orientation on the
Silverado Crew Cab pickup truck roof structure from those in the Tahoe/Suburban.
2011 Chevrolet Municipal Vehicles Technical Manual
aNtI-Lock brakINg systEm faq | 17
GM offers Anti-Lock Brake Systems as standard or optional
on all North American passenger vehicles and light truck
lines. The computerized Anti-Lock Braking System (ABS) is
designed to keep the vehicle’s wheels rotating as the brakes are
applied to assist the driver in achieving a controlled stop.
Sensors monitor how fast the wheels rotate and feed the data
continuously to the ABS computer. The vehicle’s brakes slow
each wheel as the brake pedal is applied. However, when
ABS is activated due to road conditions, the system repeatedly
releases and applies pressure to the brakes. The wheels
can keep rolling, thus retaining steering ability and enhanced
stability while providing a higher braking force on most
surfaces than a locked wheel provides.
How exactly does ABS work?
In cars without ABS, hitting the brakes can cause the wheels to lock, leaving you unable
to steer the vehicle until you decrease the pressure so the wheels can roll again. With
an ABS, as you apply the brakes, the ABS computer monitors the wheel speed sensor
information. If the computer senses that a wheel is approaching lock up, it sends a
signal to the hydraulic modulator to reduce, then to reapply, brake pressure several
times a second for as long as you maintain firm pressure on the brake pedal. The
process is much like the threshold braking technique used with conventional brakes.
However, ABS does it much faster and more accurately than any driver can, leaving you
free to focus on steering away from obstacles.
Does ABS reduce stopping distances?
Yes, in braking situations where the wheels on a non-ABS equipped vehicle
would lock up, ABS will generally provide shorter controlled stopping distance. The
amount of improvement in stopping distance depends on many factors, including the
road surface, severity of braking, initial vehicle speed, etc. On some surfaces, such as
gravel roads, braking distances can be longer, but you will still have the control benefits
of ABS. The important capability of ABS is control. ABS provides improved vehicle
steerability and stability when braking.
What can affect the ABS advantage?
It is important that you follow the maintenance schedule recommended in the owner’s
manual of the vehicle, tires should be at their proper inflation level, the brake pads
should be checked regularly, etc. While driving, you should sit comfortably, so that your
hips are back in the seat and your knees are bent, even while braking. Your foot should
be positioned so that your heel is on the floor and your toes are secure on the lower half
of the pedal. And, though ABS may reduce stopping distance, remember: The faster you
go, the longer it takes you to stop. Keeping a safe distance between you and the
vehicle in front of you is always necessary, even with ABS.
What happens if ABS becomes inactive?
The ABS electronic control unit has on-board diagnostic capability. If a fault is detected,
the vehicle will revert to the base brake system, and the ABS telltale on the dash will be
illuminated. Should this happen, the vehicle should be taken to a dealership for repair
as soon as possible.
How do I use ABS?
Depress and hold the pedal. DO NOT PUMP THE BRAKES (that prevents the system from
working). Just hold the brake pedal down and let the ABS work for you. You may feel
the brake pedal vibrate, or you may notice some noise, but this is normal as the system
works for you.
Should I drive an ABS equipped vehicle differently than
I would drive a vehicle with conventional brakes?
Most of the time, under normal driving circumstances, there is no difference,
and you should always drive with the same caution and care. It is important to realize
that ABS only makes a difference when it is activated—when you have
to brake hard—and that would only be when the computer senses that a wheel is
approaching lock up. When ABS activates keep steady pressure on the brake pedal and
then let the ABS work for you. Don’t pump the brakes or try to find the threshold.
Simply hold the brake pedal down and steer if necessary to avoid an obstacle.
Is ABS always active?
ABS is always available, but not always activated. ABS is activated only when the brake
pedal is applied and the computer detects an impending wheel lock condition.
Can older cars be retrofitted with ABS?
No! The brake system is one of the most important features on any passenger vehicle.
Several products, which tap into the master cylinder and/or brake system performance,
are being sold in the aftermarket. Some of these products imply performance similar to
new vehicle anti-lock brake systems.
However, contrary to their claims, add-on systems, which deplete fluid from the master
cylinder on brake apply may actually increase a vehicle’s stopping distance. This may
cause the vehicle to fail to comply with Federal brake standards.
Does ABS always activate at the same speed?
No, the system operates when the computer detects wheel lockup, at any speed above
8 mph.
Will ABS wear out a vehicle’s brakes sooner?
A properly maintained brake system will be unaffected by ABS operation under typical
driving conditions.
Are there different types of ABS?
Yes, there are rear wheel anti-lock systems (RWAL) used on some trucks and four-wheel
ABS available on cars and trucks.
Do Federal Safety Standards mandate ABS?
No. Federal standards establish minimum braking performance requirements that all
vehicles must meet, but do not specify how they should be met. It should be noted that
even a vehicle with failed ABS meets the Federal safety standard for stopping distances.
Will a tire size change affect ABS?
Use of tires other than original equipment may affect ABS performance. Owners should
consult and follow the recommendations contained in the vehicle owner’s manual
regarding replacement tire size.
Note: ABS will work with original equipment spare tire or tire
chains. However, performance is reduced.
Do insurance companies give a discount for ABS?
Yes, many insurance companies give discounts that range from 5% to 10%. In the
states of New York and Florida all insurance companies are required to give an ABS
discount of 5% on certain coverages such as bodily injury, property damage, collision,
and personal injury protection. In other states the discount varies from insurance
company to insurance company. When buying auto insurance, always ask your
insurance agent if his/her company gives a discount for vehicles equipped with anti-
lock brakes.
Tahoe/Suburban 3rd Row Seats
M. Deployment zone - Tahoe 3rd seat
N. Deployment zone - Suburban 3rd seat
O. Rear zones at back corner of headliner: 1 Tahoe, 2 Suburban
P. Bottom of 3rd seat zone at rear side trim cup holders
Q. Top edge of rear quarter trim at window
R. Rear of Tahoe
S. Rear of Suburban
Tahoe/Suburban/Silverado Crew Cab Seat Air bag
T. Center of door trim pull handle
U. Top of surface of outboard front seat cushion
V. Back edge of center pillar trim
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2011 Chevrolet Municipal Vehicles Technical Manual
18 | aNtI-Lock brakINg systEm
IMPORTANT
DRIVING
SAFETY TIPS
STABILITY ENHANCEMENT SYSTEMS (StabiliTrak)
A.
Always maintain a safe
following distance.
ABS does not
allow you to stop on a dime. (Generally a
2-second following distance is considered
safe in ideal conditions.) Watch the vehicle
in front of you pass a fixed marker (such as a
sign). Count seconds—one-thousand-one,
one-thousand-two-until your front bumper
reaches the marker. If you do not count out
two seconds, then you are too close to the
vehicle in front of you. Also, if the roads are
wet or icy, or visibility is poor, you should
increase your following distance.
B.
Always drive carefully—
especially on slippery surfaces. ABS cannot
create friction between the tires and the road
surface, it can only give the driver the
maximum advantage of the existing
adhesion. If the vehicle is traveling on a
surface with no adhesion, the best ABS in the
world cannot provide a shorter stopping
distance or good steering.
C.
It is a good idea to practice an
ABS activated stop
and get the feel
of the brake pedal. However, please make
sure it’s at a safe time with no obstacles in
your path. And you only really need to try
it once or twice to know what happens.
Stability enhancement system (StabiliTrak) assists the driver with
directional control of the vehicle in difficult driving conditions. Each time
the vehicle is started, the StabiliTrak system is fully ON. StabliliTrak can
be controlled by a StabiliTrak button on the instrument panel. The
condition of the system is displayed by an instrument panel StabiliTrak
indicator light and Driver Information Center (DIC) messages. See your
owner's manual for additional information about the operation of
StabiliTrak.
For Information 1-800-FLEET-OP (353-3867)
www.gmfleet.com
GM Fleet and Commercial Specialty Vehicles • 100 Renaissance Center, 20th Floor • Detroit, MI 48265-1000

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