2008 CHEVROLET TRAIL BLAZER check engine

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

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

D
Daytime Running Lamps..................................3-15
Defensive Driving............................................. 4-2
Delayed Locking............................................... 2-7
Diesel
Running Out of Fuel....................................2-36
Disc, MP3......................................................3-83
Doing Your Own Service Work........................... 5-4
Dome Lamp Override......................................3-17
Dome Lamps .................................................3-17
Door
Delayed Locking........................................... 2-7
Locks.......................................................... 2-6
Power Door Locks......................................... 2-7
Programmable Automatic Door Locks............... 2-8
Rear Door Security Locks.............................2-10
Driver Information Center (DIC).........................3-49
DIC Operation and Displays..........................3-50
DIC Vehicle Customization............................3-58
DIC Warnings and Messages........................3-53
Driving
At Night.....................................................4-26
Before a Long Trip......................................4-27
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Highway Hypnosis.......................................4-28
Hill and Mountain Roads..............................4-28
In Rain and on Wet Roads...........................4-26
Off-Road ....................................................4-14Driving (cont.)
Recovery Hooks..........................................4-34
Rocking Your Vehicle to Get it Out.................4-34
Winter........................................................4-29
Dual Automatic Climate Control System.............3-24
Dual Climate Control System............................3-21
DVD
Rear Seat Entertainment System...................3-89
E
EDR .............................................................7-17
Electrical System
Add-On Equipment.....................................5-109
Engine Compartment Fuse Block.................5-111
Fuses and Circuit Breakers.........................5-110
Headlamps...............................................5-110
Power Windows and Other Power Options....5-110
Rear Underseat Fuse Block.........................5-118
Windshield Wiper Fuses.............................5-110
Electronic Immobilizer
PASS-Key
®III .............................................2-17
Electronic Immobilizer Operation
PASS-Key
®III+...........................................2-17
Electronically Controlled Air Suspension System....4-47
Engine
Air Cleaner/Filter.........................................5-24
Change Engine Oil Light...............................3-45
Check and Service Engine Soon Light............3-41
4

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

G
Gage
Check Gages Warning Light..........................3-47
Engine Coolant Temperature.........................3-40
Fuel..........................................................3-48
Oil Pressure...............................................3-44
Speedometer..............................................3-32
Tachometer.................................................3-32
Voltmeter Gage...........................................3-37
Garage Door Opener.......................................2-50
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-6
Gate Ajar Light...............................................3-47
Glove Box.....................................................2-55
GM Mobility Reimbursement Program.................. 7-6
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-9
Headlamp
Aiming .......................................................5-52
Headlamps....................................................3-14
Bulb Replacement.......................................5-52
Daytime Running Lamps...............................3-15
Electrical System.......................................5-110Headlamps (cont.)
Flash-to-Pass............................................... 3-8
Halogen Bulbs............................................5-52
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-14
Heated Seats................................................... 1-4
Heater...........................................................3-21
Heater...........................................................3-24
Highbeam On Light.........................................3-47
High-Speed Operation, Tires.............................5-66
Highway Hypnosis...........................................4-28
Hill and Mountain Roads..................................4-28
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-17
I
Ignition Positions.............................................2-20
Infants and Young Children, Restraints...............1-32
Ination - Tire Pressure...................................5-65
Instrument Panel
Brightness..................................................3-17
Cluster.......................................................3-31
Overview..................................................... 3-4
6

J
Jump Starting.................................................5-44
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-60
Lamps
Dome ........................................................3-17
Dome Lamp Override...................................3-17
Reading.....................................................3-18
Lap-Shoulder Belt...........................................1-25
LATCH System
Child Restraints...........................................1-39
License Plate Lamps.......................................5-54
Liftgate/Liftglass..............................................2-11
Liftglass/Liftgate..............................................2-11
Light
Airbag Readiness........................................3-34
Anti-lock Brake System (ABS) Warning...........3-39
Brake System Warning.................................3-38
Change Engine Oil......................................3-45
Charging System.........................................3-37
Check Gages Warning.................................3-47Light (cont.)
Check Gas Cap..........................................3-48
Cruise Control.............................................3-46
Gate Ajar...................................................3-47
Highbeam On.............................................3-47
Low Fuel Warning.......................................3-48
Malfunction Indicator....................................3-41
Passenger Airbag Status Indicator..................3-35
Reduced Engine Power................................3-46
Safety Belt Reminders..................................3-33
Security.....................................................3-46
Service Four-Wheel-Drive Warning Light.........3-47
StabiliTrak Indicator.....................................3-40
StabiliTrak Service.......................................3-39
Tire Pressure..............................................3-41
Lighting
Entry.........................................................3-18
Exit...........................................................3-18
Lights............................................................3-14
Flash-to-Pass............................................... 3-8
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-14
Loading Your Vehicle.......................................4-35
Locking Rear Axle............................................ 4-5
Lockout Protection..........................................2-11
Locks
Delayed Locking........................................... 2-7
Door ........................................................... 2-6
Lockout Protection.......................................2-11
Power Door .................................................. 2-7
7

O
Odometer......................................................3-32
Odometer, Trip...............................................3-32
Off-Road Driving.............................................4-14
Off-Road Recovery..........................................4-12
Oil
Change Engine Oil Light...............................3-45
Engine.......................................................5-17
Pressure Gage............................................3-44
Oil, Engine Oil Life System..............................5-22
Older Children, Restraints................................1-30
Online Owner Center........................................ 7-4
OnStar, Privacy..............................................7-18
OnStar
®System, see OnStar®Manual...............2-47
Operation, Universal Home Remote System........2-51
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-28
Outlets
Accessory Power.........................................3-20
Outside
Convex Mirror.............................................2-46
Curb View Assist Mirror................................2-46
Heated Mirrors............................................2-46
Manual Mirrors............................................2-45
Power Mirrors.............................................2-45
Overhead Console..........................................2-55
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
PPaint, Damage..............................................5-107
Park Brake....................................................2-32
Park (P)
Shifting Into................................................2-33
Shifting Out of............................................2-35
Parking
Over Things That Burn.................................2-35
Passenger Airbag Status Indicator.....................3-35
Passenger Sensing System..............................1-60
Passing.........................................................4-12
PASS-KEY
®III+ Electronic Immobilizer...............2-17
PASS-Key®III+ Electronic Immobilizer
Operation...................................................2-17
Passlock
®......................................................2-16
Perchlorate Materials Requirements, California...... 5-4
Power
Door Locks.................................................. 2-7
Electrical System.......................................5-110
Lumbar Controls........................................... 1-3
Reduced Engine Light..................................3-46
Retained Accessory (RAP)............................2-21
Seat............................................................ 1-3
Steering Fluid.............................................5-38
Windows....................................................2-13
Privacy..........................................................7-17
Event Data Recorders..................................7-17
Navigation System.......................................7-18
OnStar.......................................................7-18
Radio Frequency Identication.......................7-18
Programmable Automatic Door Locks.................. 2-8
9

R
Radiator Pressure Cap....................................5-30
Radio Frequency Identication (RFID), Privacy....7-18
Radio(s)........................................................3-66
Radios
Navigation/Radio System, see
Navigation Manual....................................3-89
Rear Seat Audio........................................3-103
Reception.................................................3-106
Setting the Clock.........................................3-66
Theft-Deterrent..........................................3-104
Reading Lamps..............................................3-18
Rear Axle......................................................5-49
Locking........................................................ 4-5
Rear Climate Control System............................3-28
Rear Door Security Locks................................2-10
Rear Floor Storage Lid....................................2-57
Rear Seat Audio (RSA)..................................3-103
Rear Seat Entertainment System.......................3-89
Rear Seat Operation.......................................1-10
Rear Windshield Washer/Wiper.........................3-10
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-42
Rearview Mirror, Automatic Dimming with
OnStar
®and Compass.................................2-38
Rearview Mirror, Automatic Dimming with
OnStar
®, Compass and Temperature Display.....2-40Rearview Mirror with OnStar
®...........................2-38
Rearview Mirrors.............................................2-37
Reclining Seatbacks.......................................... 1-6
Recommended Fluids and Lubricants.................6-12
Recovery Hooks.............................................4-34
Recreational Vehicle Towing.............................4-42
Reduced Engine Power Light............................3-46
Remote Keyless Entry (RKE) System.................. 2-4
Remote Keyless Entry (RKE) System, Operation..... 2-5
Removing the Flat Tire and Installing
the Spare Tire.............................................5-89
Removing the Spare Tire and Tools...................5-86
Replacement Bulbs.........................................5-54
Replacement Parts, Maintenance......................6-15
Reporting Safety Defects
Canadian Government..................................7-15
General Motors...........................................7-15
United States Government............................7-14
Restraint System Check
Checking the Restraint Systems....................1-66
Replacing Restraint System Parts
After a Crash..........................................1-67
Retained Accessory Power (RAP)......................2-21
Roadside
Assistance Program....................................... 7-7
Rocking Your Vehicle to Get it Out....................4-34
Routing, Engine Drive Belt...............................6-16
Running Out of Fuel........................................2-36
10