(14)= Check front and rear suspension. Look for
damaged, loose or missing parts or parts showing signs
of wear or lack of lubrication. Replace parts as
needed.
(15)= Adjust tire pressures as indicated on the GVW
Rating label for optimum tire life. SeeTires on page 5-68
for further details. Check tires for excessive or
abnormal wear or damage. Also check for damaged
wheels. Replace wheels and/or tires as needed.
(16)= Check spring-to-axle U-bolts and shackle bolts
for proper torque. See the service manual for torque
sequence and specifications. When parts are replaced,
the torque must be checked and adjusted more often
during the first 6,000 miles (10 000 km). Check torque at
500 miles (800 km) and 2,000 miles (3 000 km) after
first use of parts.
(17)= Check complete exhaust system and cab areas
near the exhaust system for broken, damaged,
missing or out-of-position parts. Also inspect for open
seams, holes, loose connections or other conditions
which could let exhaust fumes seep into the driver
compartment. Needed repairs should be made at once.
To help maintain system integrity, replace exhaust
pipes whenever a new muffler is put on.(18)= Check all gasoline engine drive belts for cracks,
fraying and wear. Replace as needed.
(20)= With the engine off and below normal operating
temperature, check to see that the thermostatically
controlled engine cooling fan can be rotated by hand on
viscous-operated drives. Replace as needed.
(21)= Check shields and underhood insulation for
damage or looseness. Adjust or replace as needed.
23)= Wheel bearing service:
•Grease type – Clean, inspect and lubricate with the
proper wheel bearing grease at designated intervals
or when hubs are removed. SeePart C:
Recommended Fluids and Lubricants on page 6-29.
•Oil-filled type – Some wheel bearings are lubricated
by rear axle lubricant. When you have oil-filled
hubs, use lubricant identical to that used in your rear
axle. Lubricant change intervals are the same for
front and rear axles. However, you must maintain oil
level at the OIL LEVEL mark between change
intervals. SeePart C: Recommended Fluids and
Lubricants on page 6-29.
6-21
Starter Switch Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake and the regular
brakes. See “Parking Brake” if necessary.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. On automatic transmission vehicles, try to start the
engine in each gear. The starter should work only
in PARK (P), if equipped, or NEUTRAL (N). If
the starter works in any other position, your vehicle
needs service.
Automatic Transmission Shift Indicator
Check
Check that the indicator points to the gear chosen.
Steering Check
Be alert for any changes in steering action, abnormal
front tire wear or steering wheel position. An inspection
or service is needed when the steering wheel is
harder to turn or has too much free play, or if there are
strange sounds when turning or parking.
Brake System Check
Be alert to illumination of the low air warning lamp or for
the tone alarm, or changes in braking action, such as
repeated pulling to one side, unusual sounds when
braking or increased brake pedal travel. Make sure air
brake system reservoirs are drained daily with full
system air pressure, and check system for leaks. Any of
these conditions could indicate the need for brake
system inspection and/or service.
Engine Cooling System Service
Inspect the hoses and have them replaced if they are
cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace as needed. Clean the
outside of the radiator and air conditioning condenser.
To help ensure proper operation, a pressure test of
the cooling system and pressure cap is recommended
at least once a year.
6-26
Matching Transmitter(s) to Your Vehicle............... 2-5
Mexico, Central America and Caribbean
Islands/Countries (Except Puerto Rico and
U.S. Virgin Islands)....................................... 7-4
Mirrors
Manual Rearview Mirror................................2-39
Outside Convex Mirrors................................2-40
Outside Heated Mirrors................................2-41
Outside Manual Mirrors................................2-39
Outside Power Mirrors..................................2-40
Mirrors and Sun Visors Check..........................6-27
Model Reference................................................ vi
Moisture Ejector..............................................5-50
MyGMLink.com................................................ 7-3
N
New Vehicle Break-In......................................2-11
Noise Control System, Tampering......................5-62
Normal Maintenance Replacement Parts...........5-100
O
Odometer......................................................3-25
Off-Road Recovery..........................................4-14Oil
Change Engine Oil Light...............................3-39
Engine...............................................5-20, 5-25
Low Oil Level Light......................................3-38
Pressure Gage............................................3-37
Older Children, Restraints................................1-27
Online Owner Center........................................ 7-3
Other Service Items
Air Conditioning System...............................5-67
Automatic Ether Injection System...................5-66
Front Wheel Bearings with Oil-Filled Hubs.......5-67
Fuel Filter...................................................5-64
Primary Fuel Filter and Water Separator.........5-65
Secondary Fuel Filter and Water Separator/
Heater....................................................5-66
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-22
Outside
Convex Mirrors............................................2-40
Heated Mirrors............................................2-41
Manual Mirrors............................................2-39
Power Mirrors.............................................2-40
Overdrive Defeat.............................................2-29
Overspeed Warning Light.................................3-39
Owners, Canadian............................................... ii
Owner’s Information.......................................... 7-8
10
Storage Areas................................................2-41
Center Console Storage Area........................2-42
Stuck in Sand, Mud, Ice or Snow......................4-29
Sun Visors.....................................................2-10
Switchbanks, Instrument Panel..........................3-16
T
Tachometer....................................................3-26
Theft-Deterrent, Radio.....................................3-57
Theft-Deterrent Systems...................................2-10
Tilt Wheel........................................................ 3-7
Tire Inflation Check.........................................6-24
Tires.....................................................5-68, 5-82
Changing a Flat Tire....................................5-76
Dual Tire Operation.....................................5-69
If a Tire Goes Flat.......................................5-75
Inflation - Tire Pressure................................5-68
Rims and Wheels........................................5-69
Tightening the Wheel Nuts............................5-71
Wheel Alignment and Tire Balance.................5-70
Wheel Replacement.....................................5-74
When It Is Time for New Tires......................5-70
To Use the Engine Coolant Heater....................2-24
Top Strap......................................................1-38
Towing
Power Take-Off (PTO)..................................4-36
Your Vehicle...............................................4-31Traction
Control System (TCS)..................................4-11
Tractor Protection (Breakaway) Valve Check.......6-28
Trailer
Connections................................................4-35
Trailer Brake Hand Control Valve........................ 4-9
Trailer Connections
(C7/C8 Models Only)...................................4-36
Transmission
Fluid, Automatic...........................................5-31
Fluid, Manual..............................................5-32
Service Warning Light..................................3-31
Temperature Gage.......................................3-40
Transmission Fluid Capacity.............................5-98
Transmission Operation, Automatic....................2-28
Transmission Operation, Manual........................2-30
Trip Odometer................................................3-25
Turn and Lane-Change Signals.......................... 3-8
Turn Signal/Multifunction Lever........................... 3-7
Two-Speed Rear Axle......................................2-33
Two-Speed Rear Axle Electric Shift Control.........2-26
U
Underbody Flushing Service.............................6-28
Underbody Inspection......................................6-28
Underhood Fuse Block....................................5-91
Understanding Radio Reception........................3-57
14
United States................................................... 7-4
Used Replacement Wheels..............................5-75
Using Cleaner on Fabric..................................5-78
Using the Clutch.............................................2-30
Using the Tow Hooks......................................4-30
V
Vehicle
Control........................................................ 4-5
Damage Warnings........................................... iv
Loading......................................................4-33
Symbols......................................................... iv
Vehicle Data Collection and Event
Data Records............................................... 7-5
Vehicle Identification
Number (VIN).............................................5-85
Service Parts Identification Label...................5-86
Service Statement.......................................5-85
Vehicle Storage..............................................5-55
Ventilation Adjustment......................................3-22
Visors...........................................................2-10
Voltmeter Gage..............................................3-30
W
Wait to Start Indicator......................................3-36
Warning Lights, Gages and Indicators................3-23Warnings
Hazard Warning Flashers............................... 3-5
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washer Fluid, Low Warning Light......................3-42
Washing Your Vehicle......................................5-80
Water
Fuel..........................................................5-10
Water in Fuel Warning Light.............................3-43
Weatherstrip Lubrication...................................6-25
What Fuel to Use............................................. 5-8
What Fuel to Use in Canada.............................. 5-9
What Kind of Engine Oil to Use................5-22, 5-28
What to Do with Used Oil........................5-25, 5-29
What to Use..................................5-33, 5-44, 5-61
Wheels
Alignment and Tire Balance..........................5-70
Front Bearings with Oil-Filled Hubs................5-67
Replacement...............................................5-74
Rims.........................................................5-69
Tightening the Wheel Nuts............................5-71
When to Add Engine Oil..........................5-21, 5-27
When to Change Engine Oil.............................5-29
When to Change Engine Oil
(GM Oil Life System)...................................5-24
When to Check..............................5-31, 5-32, 5-69
15