2008 GMC SIERRA belt

Additional Required Services (cont’d)
Service and Miles (Kilometers)25,000
(40 000)50,000
(80 000)75,000
(120 000)100,000
(160 000)125,000
(200 000)150,000
(240 000)
Four-wheel drive only: Change transfer
case uid (extreme duty service).
See footnotes (g) (l) and (m).• •••••
Four-wheel drive only: Change
transfer case uid (normal service).
See footnotes (g) and (m).•••
Inspect evaporative control system.
An Emission Control Service.
See footnotes † and (k).•••
Replace spark plugs and inspect
spark plug wires.An Emission
Control Service.•
Engine cooling system service
(or every ve years, whichever
occurs rst).An Emission Control
Service. See footnote (i).•
Inspect engine accessory drive belt.
An Emission Control Service.
See footnote (q).•
6-8

(e)Make sure the safety belt reminder light and safety
belt assemblies are working properly. Look for any
other loose or damaged safety belt system parts. If you
see anything that might keep a safety belt system
from doing its job, have it repaired. Have any torn or
frayed safety belts replaced. Also see Checking
the Restraint Systems on page 1-87.
(f)Lubricate all key lock cylinders, body door hinges,
hood latch assembly, secondary latch, pivots, spring
anchor, release pawl, tailgate hinges, tailgate linkage,
tailgate handle pivot points, latch bolt, fuel door
hinge, locks, and folding seat hardware. More frequent
lubrication may be required when exposed to a
corrosive environment. Applying silicone grease on
weatherstrips with a clean cloth will make them
last longer, seal better, and not stick or squeak.
(g)Check vent hose at transfer case for kinks and
proper installation. Check to be sure vent hose
is unobstructed, clear, and free of debris.(h)Change automatic transmission fluid and filter if the
vehicle Gross Vehicle Weight Rating (GVWR) is
over 8600 lbs or if the vehicle is mainly driven under
one or more of these conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery
service.
(i)Drain, flush, and refill cooling system. This service can
be complex; you should have your dealer/retailer perform
this service. See Engine Coolant on page 5-28for what to
use. Inspect hoses. Clean radiator, condenser, pressure
cap, and ller neck. Pressure test the cooling system and
pressure cap.
(j)A fluid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired and
the fluid level checked. Add fluid if needed.
(k)Inspect system. Check all fuel and vapor lines and
hoses for proper hook-up, routing, and condition. Check
that the purge valve, if the vehicle has one, works
properly. Replace as needed.
6-10

(l)Extreme Duty Service: Change transfer case fluid if
the vehicle is mainly driven off-road in four-wheel
drive, or is used for heavy trailer towing. Farming,
mining, forestry, and Department of Natural Resources
(DNR) vehicles meet this definition.
(m)During any maintenance, if a power washer is used
to clean mud and dirt from the underbody, care should be
taken to not directly spray the transfer case output seals.
High pressure water can overcome the seals and
contaminate the transfer case fluid. Contaminated fluid
will decrease the life of the transfer case and should be
replaced.
(n)Vehicles with diesel engine or with GVWR above
10,000 lbs (4 536 kg) only: Inspect shields for damage or
looseness. Adjust or replace as required. This is a
Noise Emission Control Service. Applicable to vehicles
sold in the United States and recommended for
vehicles sold in Canada.
(p)If you drive regularly under dusty conditions, inspect
the filter or change indicator (if equipped) at each
engine oil change.
(q)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure the safety,
dependability, and emission control performance of your
vehicle. Your dealer/retailer can assist you with these
checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-15.
At the First 100, 1,000 and 6,000
Miles (160, 1 600 and 10 000 km)
For vehicles with dual wheels, check dual wheel
nut torque. For proper torque, seeCapacities and
Specifications on page 5-130.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel fill.
6-11

Engine Drive Belt Routing
(A) Air Conditioning Compressor
If your vehicle has the DURAMAX
®®Diesel engine, see
the DURAMAX®®Diesel manual for more information. V6 Engines
V8 Engines
6-18

Event Data Recorders
This vehicle has an Event Data Recorder (EDR). The
main purpose of an EDR is to record, in certain crash or
near crash-like situations, such as an airbag deployment
or hitting a road obstacle, data that will assist in
understanding how a vehicle’s systems performed.
The EDR is designed to record data related to vehicle
dynamics and safety systems for a short period of time,
typically 30 seconds or less. The EDR in this vehicle is
designed to record such data as:
How various systems in your vehicle were operating
Whether or not the driver and passenger safety belts
were buckled/fastened
How far, if at all, the driver was pressing the
accelerator and/or brake pedal
How fast the vehicle was traveling
This data can help provide a better understanding of the
circumstances in which crashes and injuries occur.Important:EDR data is recorded by your vehicle only
if a non-trivial crash situation occurs; no data is
recorded by the EDR under normal driving conditions
and no personal data (e.g., name, gender, age,
and crash location) is recorded. However, other parties,
such as law enforcement, could combine the EDR
data with the type of personally identifying data routinely
acquired during a crash investigation.
To read data recorded by an EDR, special equipment is
required, and access to the vehicle or the EDR is
needed. In addition to the vehicle manufacturer, other
parties, such as law enforcement, that have the special
equipment, can read the information if they have
access to the vehicle or the EDR.
GM will not access this data or share it with others
except: with the consent of the vehicle owner or, if the
vehicle is leased, with the consent of the lessee; in
response to an official request of police or similar
government office; as part of GM’s defense of litigation
through the discovery process; or, as required by law.
Data that GM collects or receives may also be used for
GM research needs or may be made available to others
for research purposes, where a need is shown and the
data is not tied to a specic vehicle or vehicle owner.
7-17

A
Accessories and Modications............................ 5-4
Adding a Snow Plow or Similar Equipment.........4-43
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-85
Additives, Fuel................................................. 5-7
Add-On Electrical Equipment...........................5-122
Adjustable Throttle and Brake Pedal..................2-26
Air Cleaner/Filter, Engine.................................5-19
Air Conditioning..............................3-25, 3-27, 3-28
Airbag
Off Light.....................................................3-39
Passenger Status Indicator...........................3-41
Readiness Light..........................................3-38
Airbag System................................................1-68
What Will You See After an Airbag Inates?....1-75
When Should an Airbag Inate?....................1-73
Where Are the Airbags?...............................1-71
Airbag Systems
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-85
Airbag Off Switch........................................1-76
How Does an Airbag Restrain?......................1-74
Passenger Sensing System...........................1-80
Servicing Your Airbag-Equipped Vehicle..........1-84
What Makes an Airbag Inate?......................1-74
Antenna, Fixed Mast......................................3-126Antenna, XM™ Satellite Radio Antenna
System.....................................................3-126
Antilock Brake System (ABS)............................. 4-4
Antilock Brake, System Warning Light................3-45
Appearance Care
Aluminum or Chrome-Plated Wheels.............5-118
Care of Safety Belts...................................5-115
Chemical Paint Spotting..............................5-120
Cleaning Exterior Lamps/Lenses..................5-116
Fabric/Carpet............................................5-114
Finish Care...............................................5-116
Finish Damage..........................................5-119
Instrument Panel, Vinyl, and Other Plastic
Surfaces
...............................................5-115
Interior Cleaning........................................5-112
Leather....................................................5-114
Sheet Metal Damage..................................5-119
Tires........................................................5-119
Underbody Maintenance.............................5-119
Vehicle Care/Appearance Materials...............5-120
Washing Your Vehicle.................................5-116
Weatherstrips............................................5-115
Windshield and Wiper Blades......................5-117
Appointments, Scheduling Service....................... 7-9
Ashtray.........................................................3-24
Audio System.................................................3-80
Audio Steering Wheel Controls....................3-124
Fixed Mast Antenna...................................3-126
1

Audio System (cont.)
Navigation/Radio System, see Navigation
Manual.................................................3-112
Radio Reception........................................3-125
Rear Seat Audio (RSA)...............................3-122
Setting the Clock.........................................3-81
Theft-Deterrent Feature...............................3-123
XM™ Satellite Radio Antenna System...........3-126
Audio System(s).............................................3-84
Automatic Headlamp System............................3-19
Automatic Transmission
Fluid..................................................5-22, 5-25
Operation...................................................2-28
Auxiliary Roof Mounted Lamp Switch.................3-20
B
Battery..........................................................5-45
Electric Power Management..........................3-22
Run-Down Protection...................................3-23
Brake
Emergencies................................................ 4-5
Brakes..........................................................5-42
System Warning Light..................................3-44
Braking........................................................... 4-3
Braking in Emergencies..................................... 4-5
Break-In, New Vehicle.....................................2-22
Bulb Replacement...........................................5-59Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp............................................5-61
Halogen Bulbs............................................5-59
Headlamp Aiming........................................5-56
Headlamps.................................................5-60
License Plate Lamps....................................5-64
Pickup Box Identication and Fender
Marker Lamps.........................................5-62
Replacement Bulbs......................................5-65
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps........................................5-62
Buying New Tires...........................................5-84
C
Calibration.............................................2-55, 2-57
California Fuel.................................................. 5-7
California Perchlorate Materials Requirements....... 5-5
California Proposition 65 Warning....................... 5-4
Canadian Owners................................................ ii
Capacities and Specications..........................5-130
Carbon Monoxide...................2-14, 2-53, 4-31, 4-55
Care of
Safety Belts..............................................5-115
Cargo Lamp...................................................3-22
Cargo Management System.............................2-78
CD, MP3 ............................................3-102, 3-106
Center Console Storage Area...........................2-76
2

Electrical System (cont.)
Instrument Panel Fuse Block.......................5-124
Power Windows and Other Power Options....5-123
Underhood Fuse Block...............................5-126
Windshield Wiper Fuses.............................5-123
Engine
Air Cleaner/Filter.........................................5-19
Check and Service Engine Soon Light............3-48
Coolant......................................................5-28
Coolant Heater............................................2-26
Coolant Temperature Gage...........................3-46
Drive Belt Routing.......................................6-18
Engine Compartment Overview......................5-14
Exhaust.....................................................2-53
Fan Noise..................................................5-39
Fast Idle System.........................................2-25
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheated Protection Operating Mode...........5-33
Overheating................................................5-30
Running While Parked..................................2-54
Starting......................................................2-24
Entry Lighting.................................................3-21
Event Data Recorders.....................................7-17
Exit Lighting...................................................3-21
Extender, Safety Belt.......................................1-35
Exterior Lamps...............................................3-17F
Fast Idle System............................................2-25
Filter
Engine Air Cleaner......................................5-19
Finish Damage.............................................5-119
Fixed Mast Antenna.......................................3-126
Flashers, Hazard Warning.................................. 3-8
Flash-to-Pass.................................................3-11
Flat Tire........................................................5-91
Flat Tire, Changing.........................................5-92
Flat Tire, Storing...........................................5-108
Fluid.....................................................5-22, 5-25
Power Steering...........................................5-39
Windshield Washer......................................5-40
Fog Lamp
Fog ...........................................................3-20
Fog Lamp Light..............................................3-52
Four-Wheel Drive....................................2-36, 5-52
Four-Wheel-Drive Light....................................3-53
Front Axle......................................................5-54
Fuel............................................................... 5-6
Additives...................................................... 5-7
California Fuel.............................................. 5-7
E85 (85% Ethanol)........................................ 5-8
Filling a Portable Fuel Container....................5-12
Filling the Tank...........................................5-10
5