2003 CHEVROLET TRAIL BLAZER tow

97,500 Miles (162 500 km)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle
seals for leaking.
qRotate tires. See
Tire Inspection and Rotation on
page 5-55for proper rotation pattern and additional
information.(See footnote +.)
100,000 Miles (166 000 km)
qV8 Engine Only: Inspect spark plug wires.An Emission Control Service.
qReplace spark plugs.An Emission Control Service.
qChange automatic transmission ¯uid and ®lter if
the vehicle is mainly driven under one or more
of these conditions:
þ In heavy city traffic where the outside
temperature regularly reaches 90ÉF (32ÉC) or
higher.
þ In hilly or mountainous terrain.
þ When doing frequent trailer towing.
þ Uses such as found in taxi, police or delivery
service.qIf you haven't used your vehicle under severe service
conditions listed previously and, therefore, haven't
changed your automatic transmission ¯uid, change
both the ¯uid and ®lter
qAutomatic Transfer Case Only: Change transfer
case ¯uid.
qV8 Engine Only: Inspect Positive Crankcase
Ventilation (PCV) valve.
An Emission Control Service.
150,000 Miles (240 000 km)
qDrain, ¯ush and re®ll cooling system (or every
60 months since last service, whichever occurs ®rst).
See
Engine Coolant on page 5-24for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap.
An Emission Control Service.
qInspect engine accessory drive belt.An Emission
Control Service.
6-10

GM Mobility Program for Persons
with Disabilities
This program, available to
quali®ed applicants, can
reimburse you up to
$1,000 toward eligible
aftermarket driver or
passenger adaptive
equipment you may
require for your vehicle
(hand controls,
wheelchair/scooter
lifts, etc.).
This program can also provide you with free resource
information, such as area driver assessment centers and
mobility equipment installers. The offer is available for
a limited period of time from the date of vehicle
purchase/lease. For more details, or to determine your
vehicle's eligibility, see your GM dealer or call the
GM Mobility Assistance Center at 1-800-323-9935.
Text telephone (TTY) users, call 1-800-833-9935.
GM of Canada also has a Mobility Program. Call
1-800-GM-DRIVE (463-7483) for details. All TTY users
call 1-800-263-3830.
Roadside Assistance Program
To enhance Chevrolet's strong commitment to customer
satisfaction, Chevrolet is excited to announce the
establishment of the Chevrolet Roadside Assistance
Center. As the owner of a 2003 Chevrolet, membership
in Roadside Assistance is free.
Roadside Assistance is available 24 hours a day,
365 days a year, by calling 1-800-CHEV-USA
(243-8872). This toll-free number will provide you
over-the-phone roadside assistance with minor
mechanical problems. If your problem cannot be
resolved over the phone, our advisors have access to a
nationwide network of dealer recommended service
providers. Roadside membership is free; however some
services may incur costs.
Roadside offers two levels of service to the customer,
Basic CareandCourtesy Care:
RoadsideBasic Careprovides:
·Toll-free number, 1-800-CHEV-USA (243-8872),
text telephone (TTY) users, call 1-888-889-2438
·Free towing for warranty repairs
·Basic over-the-phone technical advice
·Available dealer services at reasonable costs
(i.e., wrecker services, locksmith/key service,
glass repair, etc.)
7-5

RoadsideCourtesy Careprovides:
·RoadsideBasic Careservices
(as outlined previously)
Plus:
·FREE Non-Warranty Towing (to the closest dealer
from a legal roadway)
·FREE Locksmith/Key Service (when keys are lost
on the road or locked inside)
·FREE Flat Tire Service (spare installed on the road)
·FREE Jump Start (at home or on the road)
·FREE Fuel Delivery ($5 of fuel delivered on
the road)
Chevrolet offers Courtesy Transportation for customers
needing warranty service. Courtesy Transportation
will be offered in conjunction with the coverage provided
by the Bumper-to-Bumper New Vehicle Limited
Warranty to eligible purchasers of 2003 Chevrolet
passenger cars and light duty trucks. (See your selling
dealer for details.)
Courtesy Careis available to retail and retail lease
customers operating 2003 and newer Chevrolet vehicles
for a period of 3 years/36,000 miles (60 000 km),
whichever occurs ®rst. All
Courtesy Careservices must
be pre-arranged by Chevrolet Roadside or dealer
service management.
Basic CareandCourtesy Careare not part of or
included in the coverage provided by the New Vehicle
Limited Warranty. Chevrolet reserves the right to modify
or discontinue
Basic CareandCourtesy Careat
any time.
The Roadside Assistance Center uses companies that
will provide you with quality and priority service.
When roadside services are required, our advisors will
explain any payment obligations that may be incurred
for utilizing outside services.
For prompt assistance when calling, please have the
following available to give to the advisor;
·Vehicle Identi®cation Number (VIN)
·License plate number
·Vehicle color
·Vehicle location
·Telephone number where you can be reached
·Vehicle mileage
·Description of problem
Canadian Roadside Assistance
Vehicles purchased in Canada have an extensive
Roadside Assistance program accessible from anywhere
in Canada or the United States. Please refer to the
Warranty and Owner Assistance Information book.
7-6

If NHTSA receives similar complaints, it may open an
investigation, and if it ®nds that a safety defect exists in
a group of vehicles, it may order a recall and remedy
campaign. However, NHTSA cannot become involved in
individual problems between you, your dealer or
General Motors.
To contact NHTSA, you may either call the Auto Safety
Hotline toll-free at 1-800-424-9393 (or 366-0123 in
the Washington, D.C. area) or write to:
NHTSA, U.S. Department of Transportation
Washington, D.C. 20590
You can also obtain other information about motor
vehicle safety from the hotline.
Reporting Safety Defects to the
Canadian Government
If you live in Canada, and you believe that your vehicle
has a safety defect, you should immediately notify
Transport Canada, in addition to notifying General
Motors of Canada Limited. You may write to:
Transport Canada
330 Sparks Street
Tower C
Ottawa, Ontario K1A 0N5
Reporting Safety Defects to General
Motors
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, we certainly hope you'll notify us.
Please call us at 1-800-222-1020, or write:
Chevrolet Motor Division
Chevrolet Customer Assistance Center
P.O. Box 33170
Detroit, MI 48232-5170
In Canada, please call us at 1-800-263-3777 (English)
or 1-800-263-7854 (French). Or, write:
General Motors of Canada Limited
Customer Communication Centre, 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.
RETAIL SELL PRICE: $120.00
7-9

Cruise Control................................................3-12
Current and Past Model Order Forms................7-10
Customer Assistance Information........................ 7-7
Courtesy Transportation.................................. 7-7
Customer Assistance for Text
Telephone (TTY) Users............................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons with
Disabilities................................................ 7-5
Reporting Safety Defects to General Motors...... 7-9
Reporting Safety Defects to the Canadian
Government.............................................. 7-9
Reporting Safety Defects to the United
States Government.................................... 7-8
Roadside Assistance Program......................... 7-5
Service Publications Ordering Information......... 7-9
D
Daytime Running Lamps (DRL).........................3-17
Defensive Driving............................................. 4-2
Defogging and Defrosting.........................3-22, 3-28
Delayed Locking............................................... 2-9
Dinghy Towing................................................4-45
Doing Your Own Service Work........................... 5-3
Dolly Towing..................................................4-47
Dome Lamp Override......................................3-18
Dome Lamps.................................................3-19Door............................................................... 2-9
Delayed Locking........................................... 2-9
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12
DRIVER DOOR AJAR.....................................3-63
Driver Information Center (DIC).........................3-51
DIC Operation and Displays..........................3-52
DIC Warnings and Messages........................3-61
Driver............................................................1-14
Position, Safety Belt.....................................1-14
Driving Across an Incline..................................4-25
Driving Downhill..............................................4-23
Driving in Mud, Sand, Snow or Ice....................4-27
Driving in Water..............................................4-28
Driving On Grades..........................................4-58
Driving on Off-Road Hills.................................4-19
Driving on Snow or Ice....................................4-38
Driving Through Deep Standing Water...............4-32
Driving Through Flowing Water.........................4-32
Driving Uphill..................................................4-21
Driving with a Trailer.......................................4-56
Driving..........................................................4-29
At Night.....................................................4-29
City...........................................................4-33
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-34
Hill and Mountain Roads..............................4-36
4

Locks............................................................. 2-9
Delayed Locking........................................... 2-9
Door........................................................... 2-8
Leaving Your Vehicle....................................2-12
Lockout Protection.......................................2-12
Power Door.................................................. 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12
Loss of Control...............................................4-14
Low Fuel Warning Light...................................3-51
Luggage Carrier..............................................2-47
Lumbar........................................................... 1-3
Manual Controls............................................ 1-3
Power Controls............................................. 1-3
M
Maintenance, Normal Replacement Parts..........5-102
Maintenance Schedule.....................................6-11
At Each Fuel Fill.........................................6-11
At Least Once a Month................................6-11
At Least Once a Year..................................6-13
At Least Twice a Year..................................6-12
Brake System Inspection..............................6-17
Engine Cooling System Inspection.................6-16
Exhaust System Inspection...........................6-16
Fuel System Inspection................................6-16
How This Section is Organized....................... 6-3
Introduction.................................................. 6-2Maintenance Schedule (cont.)
Maintenance Requirements............................. 6-2
Part A - Scheduled Maintenance Services......... 6-4
Part B - Owner Checks and Services.............6-11
Part C - Periodic MaintenanceInspections......6-16
Part D - Recommended Fluids and
Lubricants...............................................6-18
Part E - Maintenance Record........................6-20
Scheduled Maintenance................................. 6-5
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection..........................6-16
Transfer Case and Front Axle
(Four-Wheel Drive) Inspection....................6-17
Using Your................................................... 6-4
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-59
Making Turns.................................................4-57
Malfunction Indicator Light................................3-43
Manual Lumbar Controls.................................... 1-3
Manual Seats................................................... 1-2
Matching Transmitter(s) to Your Vehicle............... 2-6
Memory Seat.................................................2-50
Message.......................................................3-61
DIC Warnings and Messages........................3-61
Mexico, Central America and Caribbean Islands/
Countries (Except Puerto Rico and U.S. Virgin
Islands) ± Customer Assistance....................... 7-4
Mirror Operation.............................................2-34
Mirrors..........................................................2-34
9

Rear Compartment Storage Panel/Cover............2-45
Rear Door Security Locks................................2-12
Rear Floor Storage Lid....................................2-48
Rear Safety Belt Comfort Guides......................1-24
Rear Seat Audio (RSA)..................................3-104
Rear Seat Entertainment System.......................3-93
Rear Seat Operation......................................... 1-6
Rear Seat Passenger Positions.........................1-21
Rear Seat Passengers, Safety Belts..................1-21
Rear Seats (TrailBlazer EXT)............................. 1-7
Rear Underseat Fuse Block..............................5-95
Rear Window Defogger............................3-23, 3-28
Rearview Mirror, Automatic Dimming with
OnStar
žand Compass.................................2-34
Reclining Seatbacks.......................................... 1-4
Recreational Vehicle Towing.............................4-44
Reduced Engine Power Light............................3-48
Remote Control..............................................3-98
Remote Keyless Entry System, Operation............ 2-6
Remote Keyless Entry System............................ 2-5
Removing the Flat Tire and Installing the
Spare Tire..................................................5-71
Removing the Spare Tire and Tools...................5-65
Replacement Bulbs.........................................5-51
Replacing Brake System Parts..........................5-41
Replacing Restraint System Parts After
a Crash.....................................................1-60
Reporting Safety Defects................................... 7-9
Canadian Government................................... 7-9
General Motors............................................. 7-9Reporting Safety Defects (cont.)
United States Government.............................. 7-8
Reprogramming a Single HomeLink
žButton.......2-42
Resetting Defaults...........................................2-43
Restraint System Check...................................6-12
Checking Your Restraint Systems...................1-59
Replacing Restraint System Parts After
a Crash..................................................1-60
Restraint Systems...........................................1-59
Checking....................................................1-59
Replacing Parts...........................................1-60
Retained Accessory Power (RAP)......................2-19
RFA # BATTERY LOW....................................3-63
Right Front Passenger Position, Safety Belts......1-21
RIGHT REAR DOOR AJAR..............................3-63
Roadside......................................................... 7-5
Assistance Program....................................... 7-5
Rocking Your Vehicle To Get It Out...................4-42
Running Your Engine While You Are Parked.......2-32
S
Safety Belt.....................................................3-38
Reminder Light............................................3-38
Safety Belts...................................................5-82
Care of......................................................5-82
Driver Position............................................1-14
How to Wear Safety Belts Properly................1-14
Questions and Answers About Safety Belts.....1-13
12

Steering in Emergencies..................................4-11
Steering, Suspension and Front Drive Axle Boot
and Seal Inspection.....................................6-16
Steering Tips..................................................4-10
Steering Wheel Climate Controls.......................3-34
Steering Wheel Controls, Audio.......................3-106
Steering........................................................4-10
Stereo RCA Jacks..........................................3-94
Storage Areas................................................2-49
Convenience Net.........................................2-49
Front Storage Area......................................2-44
Glove Box..................................................2-43
Luggage Carrier..........................................2-47
Overhead Console.......................................2-43
Rear Floor Storage Lid.................................2-48
Storing a Flat or Spare Tire and Tools...............5-75
Stuck in Sand, Mud, Ice or Snow......................4-42
Sun Visors.....................................................2-15
Sunglasses Storage Compartment.....................2-43
Sunroof.........................................................2-50
T
Table............................................................2-47
Tachometer....................................................3-38
Taillamps.......................................................5-50
Turn Signal Lamps......................................5-50
Testing the Alarm............................................2-17
Theft-Deterrent, Radio....................................3-105Theft-Deterrent Systems...................................2-16
Content Theft-Deterrent................................2-16
Passlock
ž...................................................2-18
Tilt Wheel........................................................ 3-7
Tire In¯ation Check.........................................6-11
Tires.............................................................5-54
Buying New Tires........................................5-58
Chains.......................................................5-62
Changing a Flat Tire....................................5-64
If a Tire Goes Flat.......................................5-63
In¯ation -- Tire Pressure...............................5-54
Inspection and Rotation................................5-55
Uniform Tire Quality Grading.........................5-59
Wheel Alignment and Tire Balance.................5-60
Wheel Replacement.....................................5-61
When It Is Time for New Tires......................5-57
To Use the Engine Coolant Heater....................2-21
Top Strap Anchor Location...............................1-39
Top Strap......................................................1-38
Torque Lock...................................................2-31
Total Weight on Your Vehicle's Tires..................4-54
Towing..........................................................4-44
Recreational Vehicle.....................................4-44
Towing a Trailer..........................................4-50
Your Vehicle...............................................4-44
Traction........................................................... 4-9
Assist System (TAS)...................................... 4-9
Trailer Brakes.................................................4-55
Trailer Wiring Harness.....................................4-60
TRANS HOT IDLE ENGINE.............................3-62
14