2003 CHEVROLET TAHOE towing

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 5-69for proper rotation pattern and additional
information.(See footnote +.)
100,000 Miles (166 000 km)
qInspect spark plug wires.An Emission Control
Service.
qReplace spark plugs.An Emission Control Service.
qChange automatic transmission ¯uid and ®lter if
the vehicle's GVWR is over 8,600 lbs or 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.
qChange transfer case ¯uid.
qExcept 8.1L V8 Engine: 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 5-29for 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.)
7-6

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
7-7

Coolant.........................................................3-45
Engine Temperature Gage............................3-45
Heater, Engine............................................2-24
Surge Tank Pressure Cap.............................5-32
Cooling System..............................................5-36
Cruise Control Light........................................3-51
Cruise Control................................................3-10
Cupholder(s)..................................................2-61
Current and Past Model Order Forms................7-12
Customer Assistance Information........................ 7-8
Courtesy Transportation.................................. 7-8
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................................................ 7-6
Reporting Safety Defects to General Motors....7-10
Reporting Safety Defects to the Canadian
Government............................................7-10
Reporting Safety Defects to the United States
Government............................................7-10
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-11D
Daytime Running Lamps..................................3-15
Defensive Driving............................................. 4-2
Defogging and Defrosting.........................3-23, 3-29
Delayed Locking.............................................2-10
Dinghy Towing................................................4-60
Doing Your Own Service Work........................... 5-3
Dolly Towing..................................................4-61
Dome Lamps.................................................3-18
Door.............................................................2-10
Delayed Locking..........................................2-10
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-13
DRIVER DOOR AJAR.....................................3-66
Driver Information Center (DIC).........................3-53
DIC Operation and Displays..........................3-54
DIC Warnings and Messages........................3-64
Driver............................................................1-30
Position, Safety Belt.....................................1-30
Driving Across an Incline..................................4-36
Driving Downhill..............................................4-34
5

M
Maintenance, Normal Replacement Parts..........5-121
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.................6-17
Exhaust System Inspection...........................6-16
Fuel System Inspection................................6-16
How This Section is Organized....................... 6-3
Introduction.................................................. 6-2
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 and Suspension 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.....................4-77
Making Turns.................................................4-75Malfunction Indicator Light................................3-47
Manual Seats................................................... 1-3
Manual Windows............................................2-16
Matching Transmitter(s) to Your Vehicle............... 2-6
Memory Seat.................................................2-66
Message.......................................................3-64
DIC Warnings and Messages........................3-64
Mexico, Central America and Caribbean Islands/
Countries (Except Puerto Rico and U.S. Virgin
Islands) ± Customer Assistance....................... 7-5
Mirrors..........................................................2-49
Automatic Dimming Rearview with Compass
and Temperature Display...........................2-49
Automatic Dimming Rearview with OnStar
ž,
Compass and Temperature Display.............2-45
Manual Rearview Mirror................................2-45
Outside Automatic Dimming Mirror.................2-53
Outside Camper-Type Mirrors........................2-52
Outside Convex Mirror.................................2-54
Outside Curb View Assist Mirrors...................2-54
Outside Heated Mirrors................................2-54
Outside Manual Mirrors................................2-51
Outside Power Camper-Type.........................2-53
Outside Power Foldaway Mirrors....................2-53
Outside Power Mirrors..................................2-52
Model Reference................................................ vi
MyGMLink.com................................................ 7-4
11

Radios (cont.)
Radio with Six-Disc CD..............................3-101
Rear Seat Audio........................................3-124
Setting the Time for Radios with Radio Data
Systems (RDS)........................................3-73
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-72
Theft-Deterrent..........................................3-125
Understanding Reception............................3-127
RDS Messages.............................3-81, 3-92, 3-105
REAR ACCESS OPEN....................................3-67
Rear Air Conditioning and Heating System and
Electronic Climate Controls...........................3-34
Rear Air Conditioning and Heating System.........3-32
Rear Air Conditioning System...........................3-31
Rear Axle......................................................5-56
Locking......................................................4-12
Rear Door Security Locks................................2-13
Rear Safety Belt Comfort Guides......................1-44
Rear Seat Audio Controls...............................3-124
Rear Seat Audio (RSA)..................................3-124
Rear Seat Entertainment System.....................3-114
Rear Seat Operation......................................... 1-9
Rear Seat Outside Passenger Positions.............1-40
Rear Seat Passengers, Safety Belts..................1-40
Rear Storage Area..........................................2-63
Rear Window Defogger............................3-23, 3-30Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-49
Rearview Mirror, Automatic Dimming with
OnStar
ž, Compass and Temperature Display . . . 2-45
Rearview Mirrors.............................................2-45
Reclining Seatbacks.......................................... 1-6
Reclining the Seatbacks...................................1-21
Recreational Vehicle Towing.............................4-59
REDUCED ENGINE POWER...........................3-68
Remote Alarm.................................................. 2-6
Remote Control.............................................3-117
Remote Keyless Entry System, Operation............ 2-5
Remote Keyless Entry System............................ 2-4
Removing the 50/50 Split Bench Seat................1-14
Removing the Bench Seat................................1-19
Removing the Flat Tire and Installing
the Spare Tire.............................................5-82
Removing the Spare Tire and Tools...................5-78
REPLACE LIFTGATE FUSE.............................3-68
Replacement Bulbs.........................................5-66
Replacing Brake System Parts..........................5-48
Replacing Restraint System Parts After a Crash . . 1-89
Replacing the 50/50 Split Bench Seat................1-15
Replacing the Bench Seat................................1-20
Reporting Safety Defects.................................7-10
Canadian Government..................................7-10
General Motors...........................................7-10
United States Government............................7-10
14

Torque Lock...................................................2-41
Total Weight on Your Vehicle's Tires..................4-71
Tow/Haul Mode Light.......................................3-52
Tow/Haul Mode...............................................2-29
Towing..........................................................4-59
Recreational Vehicle.....................................4-59
Towing a Trailer..........................................4-65
Your Vehicle...............................................4-59
TRACTION ACTIVE........................................3-71
Traction Control Operation................................4-13
TRACTION SYS LIMITED................................3-71
Traction.........................................................4-10
Assist System (TAS)....................................4-10
Off Light.....................................................3-44
Stabilitrak
žSystem......................................4-12
Trailer Brakes.................................................4-73
Trailer Wiring Harness.....................................4-77
Trailer...........................................................4-65
Recommendations.......................................4-65
Transfer Case and Front Axle (Four-Wheel Drive)
Inspection...................................................6-17
Transfer Case........................................5-55, 5-57
TRANSMISSION HOT.....................................3-71
Transmission Operation, Automatic....................2-26
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-11Transmission..................................................5-26
Fluid, Automatic...........................................5-26
Temperature Gage.......................................3-46
Transportation Options...................................... 7-8
Traveling to Remote Areas...............................4-27
Trip Information Button....................................3-54
Trip Odometer................................................3-38
Turn and Lane-Change Signals.......................... 3-8
TURN SIGNAL ON.........................................3-71
Turn Signal/Multifunction Lever........................... 3-7
Turn Signals When Towing a Trailer..................4-75U
Underbody Flushing Service.............................6-15
Underhood Fuse Block...................................5-113
Understanding Radio Reception.......................3-127
Uniform Tire Quality Grading............................5-72
United States ± Customer Assistance.................. 7-5
Used Replacement Wheels..............................5-75
Using Cleaner on Fabric................................5-100
Using HomeLink
ž...........................................2-60
Using Song List Mode...................................3-112
Using the Recovery Hooks...............................4-57
18