2008 CHEVROLET KODIAK service

Towing
Towing Your Vehicle
Consult your dealer/retailer or a professional towing
service if you need to have your disabled vehicle towed.
SeeRoadside Assistance Program on page 7-5.
Releasing Air-Operated Parking Brakes
If your vehicle has air brakes, you could have a
special towing problem. If your vehicle has to be towed
because of a complete loss of air pressure from
both systems, the parking brakes will have automatically
engaged. The tow operator can release the brakes
manually by using the following steps. Then your vehicle
can be towed with all wheels or only the rear wheels
on the ground.1. Block the wheels of the vehicle.
2. Remove the release stud and nut from the side of
the brake chamber. Some chambers have studs
which are visible at all times.
4-24

Service............................................................5-4
Accessories and Modifications..........................5-4
California Proposition 65 Warning.....................5-5
California Perchlorate Materials Requirements.....5-5
Doing Your Own Service Work.........................5-6
Engine Fan Breakage.....................................5-6
Fuel................................................................5-7
Gasoline Octane............................................5-7
Gasoline Specifications....................................5-7
Additives.......................................................5-8
Diesel Engine Fuel.........................................5-9
What Fuel to Use...........................................5-9
Very Cold Weather Operation.........................5-12
Water in Fuel...............................................5-12
Running Out of Fuel.....................................5-17
Fuel Filter Replacement.................................5-18
Fuels in Foreign Countries.............................5-19
Filling the Tank............................................5-20
Filling a Portable Fuel Container.....................5-21
Checking Things Under the Hood....................5-22
Hood Latches...............................................5-22
Engine Oil (Caterpillar
®Diesel Engine).............5-23
Engine Oil (Gasoline Engine)..........................5-24
Engine Oil (DURAMAX
®Diesel Engine)............5-28Engine Oil (Isuzu Diesel Engine).....................5-32
Engine Oil Life System (Gasoline Engine)........5-36
Engine Oil Life System (DURAMAX
®/Isuzu
Diesel Engines).........................................5-37
Engine Oil Life System (Caterpillar
®Diesel
Engine)....................................................5-39
Engine Air Cleaner/Filter................................5-39
Automatic Transmission Fluid.........................5-43
Manual Transmission Fluid.............................5-43
Engine Coolant (Caterpillar
®Diesel Engines).....5-44
Engine Coolant (Gas and DURAMAX®/
Isuzu 7.8L L6 Engines)..............................5-44
Coolant Surge Tank Pressure Cap..................5-47
Engine Overheating.......................................5-48
Cooling System............................................5-50
Engine Fan Noise.........................................5-54
Power Steering Fluid.....................................5-54
Windshield Washer Fluid................................5-55
Brakes........................................................5-57
Battery........................................................5-66
Jump Starting...............................................5-67
Rear Axle.......................................................5-72
Rear Axle Shift Motor....................................5-73
Section 5 Service and Appearance Care
5-1

Four-Wheel Drive............................................5-73
Front Axle......................................................5-74
Noise Control System.....................................5-75
Tampering with Noise Control System
Prohibited.................................................5-75
Bulb Replacement..........................................5-76
Windshield Wiper Blade Replacement..............5-76
Other Service Items........................................5-78
Fuel Filter....................................................5-78
Primary Fuel Filter and Water Separator..........5-79
Secondary Fuel Filter and Water Separator/
Heater (Caterpillar
®Diesel).........................5-80
Front Wheel Bearings with
Oil-Filled Hubs..........................................5-81
Tires..............................................................5-82
Inflation - Tire Pressure.................................5-82
Wheel Loading.............................................5-83
Dual Tire Operation.......................................5-84
When It Is Time for New Tires.......................5-84
Buying New Tires.........................................5-85
Wheel Alignment and Tire Balance..................5-86Tightening the Wheel Nuts.............................5-86
Wheel Replacement......................................5-90
If a Tire Goes Flat........................................5-92
Appearance Care............................................5-94
Interior Cleaning...........................................5-94
Fabric/Carpet...............................................5-95
Instrument Panel, Vinyl, and Other Plastic
Surfaces..................................................5-96
Care of Safety Belts......................................5-96
Weatherstrips...............................................5-96
Washing Your Vehicle...................................5-97
Cleaning Exterior Lamps/Lenses.....................5-97
Finish Care..................................................5-97
Windshield and Wiper Blades.........................5-98
Aluminum or Chrome-Plated Wheels
and Trim..................................................5-98
Tires...........................................................5-99
Sheet Metal Damage.....................................5-99
Finish Damage.............................................5-99
Underbody Maintenance...............................5-100
Chemical Paint Spotting...............................5-100
Vehicle Care/Appearance Materials................5-100
Section 5 Service and Appearance Care
5-2

Vehicle Identication.....................................5-101
Vehicle Identification Number (VIN)................5-101
Service Parts Identification Label...................5-102
Electrical System..........................................5-102
Add-On Electrical Equipment.........................5-102
Headlamp Wiring........................................5-102
Windshield Wiper Fuses...............................5-102
Fusible Links..............................................5-103Power Windows and Other Power Options......5-103
Fuses and Circuit Breakers..........................5-103
Instrument Panel Fuse Block........................5-103
Underhood Fuse Block................................5-106
Capacities and Specications........................5-109
Maintenance Replacement Parts....................5-115
Engine Drive Belt Routing............................5-117
Section 5 Service and Appearance Care
5-3

Service
For service and parts needs, visit your dealer/retailer.
You will receive genuine GM parts and GM-trained and
supported service people.
Genuine GM parts have one of these marks:
Accessories and Modications
Adding non-dealer accessories to your vehicle can
affect its performance and safety. Such things as,
airbags, braking, stability, ride and handling, emissions
systems, aerodynamics, durability, and electronic
systems like anti-lock brakes, traction control, and
stability control could be affected. Some non-dealer
accessories could even cause malfunction or damage to
parts and systems and would not be covered by the
vehicle warranty.
GM Accessories are designed to complement and
function with other systems on your vehicle. Your GM
dealer can accessorize your vehicle using genuine
GM Accessories. When you go to your GM dealer and
ask for GM Accessories, you will know that GM-trained
and supported service technicians will perform the work
using genuine GM Accessories.
Also, seeAdding Equipment to Your Airbag-Equipped
Vehicle on page 1-59.
5-4

Doing Your Own Service Work
{CAUTION:
You can be injured and your vehicle could be
damaged if you try to do service work on a
vehicle without knowing enough about it.
Be sure you have sufficient knowledge,
experience, the proper replacement parts,
and tools before you attempt any vehicle
maintenance task.
Be sure to use the proper nuts, bolts, and
other fasteners. English and metric
fasteners can be easily confused. If you
use the wrong fasteners, parts can later
break or fall off. You could be hurt.
If you want to do some of your own service work, you
will want to use the proper service manual. It tells you
much more about how to service your vehicle than this
manual can. To order the proper service manual, see
Service Publications Ordering Information on page 7-10.
Your vehicle has an airbag system. Before attempting to
do your own service work, seeServicing Your
Airbag-Equipped Vehicle on page 1-59.You should keep a record with all parts receipts and list
the mileage and the date of any service work you
perform. SeePart D: Maintenance Record on page 6-33.
Engine Fan Breakage
{CAUTION:
Changing the Fan Drive Ratio or Engine
Governed Speed:
If you change the fan drive ratio or increase
the governed speed of the engine, you may
increase stress and the fan could eventually fail.
If the fan breaks apart while it is rotating, pieces
can cause severe injury to anyone — such as a
service technician — who is nearby. And, of
course, the pieces can severely damage the
vehicle. Do not change the fan drive ratio or
increase the governed speed of the vehicle
without getting the necessary information from
your dealer.
CAUTION: (Continued)
5-6

CAUTION: (Continued)
Winter Fronts, Grille Covers or Obstructions:
Winter Fronts, grille covers or other add-on
equipment causing obstructions in front or
behind the fan should not be used on this
vehicle. If this causes the fan to eventually
break apart while it is rotating, the pieces can
cause severe injury to anyone nearby, such as
a service technician working on the engine,
and of course the pieces can severely damage
the vehicle.
Fuel
If your vehicle has a diesel engine, seeDiesel Engine
Fuel on page 5-9.
For vehicles with gasoline engines, please read this.
Use of the recommended fuel is an important part of the
proper maintenance of your vehicle. To help keep the
engine clean and maintain optimum vehicle
performance, we recommend the use of gasoline
advertised as TOP TIER Detergent Gasoline.
Gasoline Octane
Use regular unleaded gasoline with a posted octane
rating of 87 or higher. If the octane rating is less than 87,
you might notice an audible knocking noise when you
drive, commonly referred to as spark knock. If this
occurs, use a gasoline rated at 87 octane or higher as
soon as possible. If you are using gasoline rated at
87 octane or higher and you hear heavy knocking, the
engine needs service.
Gasoline Specications
At a minimum, gasoline should meet ASTM specification
D 4814 in the United States or CAN/CGSB-3.5 or 3.511
in Canada. Some gasolines contain an octane-enhancing
additive called methylcyclopentadienyl manganese
tricarbonyl (MMT). We recommend against the use of
gasolines containing MMT. SeeAdditives on page 5-8for
additional information.
5-7

Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that help prevent
engine and fuel system deposits from forming, allowing
the emission control system to work properly. In most
cases, you should not have to add anything to the fuel.
However, some gasolines contain only the minimum
amount of additive required to meet U.S. Environmental
Protection Agency regulations. To help keep fuel injectors
and intake valves clean, or if your vehicle experiences
problems due to dirty injectors or valves, look for gasoline
that is advertised as TOP TIER Detergent Gasoline. Also,
your dealer/retailer has additives that will help correct and
prevent most deposit-related problems.
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines might be available
in your area. We recommend that you use these
gasolines, if they comply with the specifications described
earlier. However, E85 (85% ethanol) and other fuels
containing more than 10% ethanol must not be used in
vehicles that were not designed for those fuels.Notice:Your vehicle was not designed for fuel that
contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in the fuel
system and also damage plastic and rubber parts.
That damage would not be covered under your
warranty.
Some gasolines that are not reformulated for low
emissions can contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. We recommend against
the use of such gasolines. Fuels containing MMT can
reduce the life of spark plugs and the performance of the
emission control system could be affected. The
malfunction indicator lamp might turn on. If this occurs,
return to your dealer/retailer for service.
5-8