2008 CHEVROLET TRAIL BLAZER transmission

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition to LOCK/OFF in each shift lever position.
The ignition should turn to LOCK/OFF only
when the shift lever is in PARK (P).
The ignition key should come out only in
LOCK/OFF.
Contact your dealer/retailer if service is required.
Parking Brake and Automatic
Transmission Park (P) Mechanism Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged.
Make sure there is room in front of your
vehicle in case it begins to roll. Be ready to
apply the regular brake at once should the
vehicle begin to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake,
set the parking brake.
To check the parking brake’s holding ability:
With the engine running and the transmission
in NEUTRAL (N), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle
is held by the parking brake only.
To check the PARK (P) mechanism’s holding
ability: With the engine running, shift to PARK (P).
Then release the parking brake followed by the
regular brake.
Contact your dealer/retailer if service is required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other
debris can collect.
6-11

Usage Fluid/Lubricant
Windshield
WasherOptikleen
®Washer Solvent.
Parking Brake
Cable GuidesChassis Lubricant
(GM Part No. U.S. 12377985,
in Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184,
in Canada 89021186).
Automatic
TransmissionDEXRON
®-VI Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Chassis
LubricationChassis Lubricant
(GM Part No. U.S. 12377985,
in Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Usage Fluid/Lubricant
Front AxleSAE 75W-90 Synthetic
Axle Lubricant
(GM Part No. U.S. 89021677,
in Canada 89021678) meeting
GM Specication 9986115.
Rear Axle
(Except
SS Model)SAE 75W-90 Synthetic
Axle Lubricant
(GM Part No. U.S. 89021677,
in Canada 89021678) meeting
GM Specication 9986115.
Rear Axle
(SS Model)SAE 75W-90 Synthetic
Axle Lubricant
(GM Part No. U.S. 89021677,
in Canada 89021678) meeting
GM Specication 9986115.
With a complete drain and rell
add 5.5 ounces (163 ml) of
Limited-Slip Axle Lubricant Additive
(GM Part No. U.S. 1052358,
in Canada 992694) where required.
SeeRear Axle on page 5-49.
6-13

Maintenance Replacement Parts
Replacement parts identied below by name, part number, or specication can be obtained from your dealer.
Part GM Part Number ACDelco Part Number
Automatic Transmission Filter Kit 24208576 TF337
Engine Air Cleaner/Filter 15036141 A2014C
Engine Oil Filter
4.2 L6 89017342 PF61
5.3 V8 89017524 PF48
6.0 V8 89017524 PF48
Spark Plugs
4.2 L6 12598004 41-103
5.3 V8 12571164 41-985
6.0 V8 12571164 41-985
Wiper Blades
Front – 22 inches (56 cm) 15214346 —
Rear – 16 inches (41 cm) 15160740 —
6-15

Reporting Safety Defects to the
Canadian Government
If you live in Canada, and you believe that your vehicle
has a safety defect, notify Transport Canada
immediately, in addition to notifying General Motors of
Canada Limited. Call them at 1-800-333-0510 or
write to:
Transport Canada
Road Safety Branch
2780 Sheffield Road
Ottawa, Ontario K1B 3V9
Reporting Safety Defects to
General Motors
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, please notify General Motors.
Call 1-800-222-1020, or write:
Chevrolet Motor Division
Chevrolet Customer Assistance Center
P.O. Box 33170
Detroit, MI 48232-5170In Canada, call 1-800-263-3777 (English) or
1-800-263-7854 (French), or write:
General Motors of Canada Limited
Customer Communication Centre, CA1-163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle suspension,
brakes, electrical, steering, body, etc.
Service Bulletins
Service Bulletins’ give additional technical service
information needed to knowledgeably service
General Motors cars and trucks. Each bulletin contains
instructions to assist in the diagnosis and service of
your vehicle.
7-15

Vehicle Data Recording and
Privacy
Your GM vehicle has a number of sophisticated
computers that record information about the vehicle’s
performance and how it is driven. For example,
your vehicle uses computer modules to monitor and
control engine and transmission performance, to monitor
the conditions for airbag deployment and deploy
airbags in a crash and, if so equipped, to provide
antilock braking to help the driver control the vehicle.
These modules may store data to help your
dealer/retailer technician service your vehicle. Some
modules may also store data about how you operate the
vehicle, such as rate of fuel consumption or average
speed. These modules may also retain the owner’s
personal preferences, such as radio pre-sets, seat
positions, and temperature settings.
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.
7-17

Audio System (cont.)
Rear Seat Audio (RSA)...............................3-103
Setting the Clock.........................................3-66
Theft-Deterrent Feature...............................3-104
XM™ Satellite Radio Antenna System...........3-107
Audio System(s).............................................3-66
Automatic Headlamp System............................3-15
Automatic Transmission
Fluid..........................................................5-25
Operation...................................................2-24
B
Battery..........................................................5-43
Electric Power Management..........................3-18
Run-Down Protection...................................3-19
Brake
Emergencies................................................ 4-5
Brakes..........................................................5-40
System Warning Light..................................3-38
Braking........................................................... 4-3
Braking in Emergencies..................................... 4-5
Break-In, New Vehicle.....................................2-19
Bulb Replacement...........................................5-52
Halogen Bulbs............................................5-52
Headlamp Aiming........................................5-52
License Plate Lamps....................................5-54
Replacement Bulbs......................................5-54
Taillamps and Turn Signal Lamps..................5-53
Buying New Tires...........................................5-75
C
Calibration.....................................2-38, 2-40, 2-42
California Fuel.................................................. 5-6
California Perchlorate Materials Requirements....... 5-4
California Proposition 65 Warning....................... 5-4
Canadian Owners................................................ ii
Capacities and Specications..........................5-121
Carbon Monoxide...................2-11, 2-36, 4-29, 4-48
Care of
Safety Belts..............................................5-103
Cargo Cover..................................................2-57
Cargo Tie Downs............................................2-58
CD, MP3 .......................................................3-83
Center Console Storage Area...........................2-55
Chains, Tire...................................................5-82
Charging System Light....................................3-37
Check
Engine Light...............................................3-41
Gages Warning Light...................................3-47
Check Gas Cap Light......................................3-48
Checking Things Under the Hood......................5-10
Chemical Paint Spotting.................................5-107
Child Restraints
Child Restraint Systems...............................1-36
Infants and Young Children...........................1-32
Lower Anchors and Tethers for Children..........1-39
Older Children.............................................1-30
Securing a Child Restraint in a Rear
Outside Seat Position...............................1-45
2

Engine (cont.)
Coolant......................................................5-28
Coolant Heater............................................2-23
Coolant Temperature Gage...........................3-40
Drive Belt Routing.......................................6-16
Engine Compartment Overview......................5-12
Exhaust.....................................................2-36
Fan Noise..................................................5-37
Oil .............................................................5-17
Oil Life System...........................................5-22
Overheating................................................5-30
Reduced Power Light...................................3-46
Starting......................................................2-21
Entry Lighting.................................................3-18
Event Data Recorders.....................................7-17
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-29
F
Filter
Engine Air Cleaner......................................5-24
Finish Damage.............................................5-107
Fixed Mast Antenna.......................................3-106
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-84Flat Tire, Changing.........................................5-85
Flat Tire, Storing.............................................5-97
Fluid
Automatic Transmission................................5-25
Power Steering...........................................5-38
Windshield Washer......................................5-39
Fog Lamp
Fog ...........................................................3-16
Four-Wheel Drive....................................2-28, 5-50
Front Axle......................................................5-51
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Check Gas Cap Light...................................3-48
Filling a Portable Fuel Container....................5-10
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-7
Gage .........................................................3-48
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-6
Low Warning Light.......................................3-48
Running Out of...........................................2-36
Fuses
Engine Compartment Fuse Block.................5-111
Fuses and Circuit Breakers.........................5-110
Rear Underseat Fuse Block.........................5-118
Windshield Wiper.......................................5-110
5

Towing
Recreational Vehicle.....................................4-42
Towing a Trailer..........................................4-48
Your Vehicle...............................................4-41
Traction
StabiliTrak
®System....................................... 4-5
Transmission
Fluid, Automatic...........................................5-25
Transmission Operation, Automatic....................2-24
Trip Odometer................................................3-32
Turn and Lane-Change Signals.......................... 3-7
Turn Signal/Multifunction Lever........................... 3-7
U
Uniform Tire Quality Grading............................5-78
Universal Home Remote System.......................2-50
Operation...................................................2-51
Using this Manual............................................... iii
V
Vehicle
Control........................................................ 4-3
Damage Warnings........................................... iv
Loading......................................................4-35
Symbols......................................................... iv
Vehicle Customization, DIC..............................3-58
Vehicle Data Recording and Privacy..................7-17
Vehicle Identication
Number (VIN)............................................5-109
Service Parts Identication Label..................5-109
Ventilation Adjustment......................................3-28
Visors...........................................................2-14
Voltmeter Gage..............................................3-37
13