2003 CHEVROLET SILVERADO towing

qReplace engine air cleaner ®lter on vehicles without
a restriction indicator. If equipped with a change
indicator, inspect the indicator. If necessary, replace
the ®lter. If vehicle is driven in dusty/dirty conditions,
inspect the change indicator (if equipped) at every
engine oil change. See
Engine Air Cleaner/Filter on
page 5-21for more information.An Emission
Control Service. (See footnote ².)
qInspect Evaporative Control System. Check all fuel
and vapor lines and hoses for proper hook-up,
routing and condition. Check that the purge valve
works properly, if equipped. Replace as needed.
An
Emission Control Service. (See footnote ².)
67,500 Miles (112 500 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 5-71for proper rotation pattern and additional
information.(See footnote +.)
75,000 Miles (125 000 km)
qInspect engine air cleaner ®lter or change indicator (if
equipped). If necessary, replace the ®lter. If vehicle is
driven in dusty/dirty conditions, inspect ®lter or
change indicator (if equipped) at every engine oil
change. See
Engine Air Cleaner/Filter on page 5-21for more information.An Emission Control Service.
(See footnote ².)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
qAllison Transmission
žOnly: Change 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.
If you do not use your vehicle under any of these
conditions, change the ¯uid and ®lter at 100,000 miles
(166 000 km).
qRotate tires. SeeTire Inspection and Rotation on
page 5-71for proper rotation pattern and additional
information.(See footnote +.)
6-9

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 8600 lbs, if the
vehicle has an Allison transmission 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 ®lterqAutomatic Transfer Case Only: Change 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 5-30for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap.
An Emission Control Service.
qChange ®ve-speed manual transmission ¯uid (with
4300 V6 or 4800 V8 engines only).
qInspect engine accessory drive belt.
An Emission
Control Service.
200,000 Miles (332 000 km)
q6000 V8 Engine Only: Change ®ve-speed manual
transmission ¯uid.
6-11

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

D
Daytime Running Lamps..................................3-15
Defensive Driving............................................. 4-2
Defogging and Defrosting.........................3-23, 3-31
Delayed Locking............................................... 2-9
Dinghy Towing................................................4-55
Doing Your Own Service Work........................... 5-3
Dolly Towing..................................................4-57
Dome Lamps.................................................3-18
Door............................................................... 2-9
Delayed Locking........................................... 2-9
Locks.......................................................... 2-7
Power Door Locks......................................... 2-8
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12
Rear Doors.................................................2-13
DRIVER DOOR AJAR.....................................3-66
Driver Information Center (DIC).........................3-54
DIC Operation and Displays..........................3-55
DIC Warnings and Messages........................3-65
Driver............................................................1-16
Position, Safety Belt.....................................1-16
Driving Across an Incline..................................4-34
Driving Downhill..............................................4-32
Driving in Mud, Sand, Snow or Ice....................4-36
Driving in Water..............................................4-37
Driving On Grades..........................................4-87
Driving on Off-Road Hills.................................4-28
Driving on Snow or Ice....................................4-49Driving Through Deep Standing Water...............4-41
Driving Through Flowing Water.........................4-41
Driving Uphill..................................................4-29
Driving with a Trailer.......................................4-86
Driving..........................................................4-38
At Night.....................................................4-38
City...........................................................4-42
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-43
Hill and Mountain Roads..............................4-46
In Rain and on Wet Roads...........................4-39
Winter........................................................4-48
Dual Automatic Climate Control System.............3-25
Dual Climate Control System............................3-22
Dual Stage Air Bags........................................1-68
Dual Tire Operation.........................................5-70
DVD ............................................................3-125
Cleaning the Video Screen..........................3-125
Distortion..................................................3-122
Rear Seat Entertainment System..................3-111
DVD Player..................................................3-111
E
Easy Exit Seat...............................................2-67
Electrical System...........................................5-109
Add-On Equipment.....................................5-109
Fuses and Circuit Breakers.........................5-110
5

Maintenance Schedule (cont.)
Transfer Case and Front Axle (All-Wheel
Drive) Inspection......................................6-18
Transfer Case and Front Axle (Four-Wheel
Drive) Inspection......................................6-18
Using Your................................................... 6-4
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-89
Making Turns.................................................4-86
Malfunction Indicator Light................................3-49
Manual Seats................................................... 1-3
Manual Selectable Ride...................................4-12
Manual Transfer Case.....................................2-34
Manual Transmission Check.............................6-13
Manual Transmission.......................................2-22
Fluid..........................................................5-28
Operation...................................................2-29
Manual Windows............................................2-15
Matching Transmitter(s) to Your Vehicle............... 2-5
Memory Seat.................................................2-66
Message.......................................................3-65
DIC Warnings and Messages........................3-65
Mexico, Central America and Caribbean Islands/
Countries (Except Puerto Rico and U.S. Virgin
Islands) ± Customer Assistance....................... 7-4
Mirrors..........................................................2-56
Automatic Dimming Rearview with Compass
and Temperature Display...........................2-56
Automatic Dimming Rearview with OnStar
ž,
Compass and Temperature Display.............2-53Mirrors (cont.)
Manual Rearview Mirror................................2-53
Outside Automatic Dimming Mirror.................2-61
Outside Camper-Type Mirrors........................2-59
Outside Convex Mirror.................................2-62
Outside Curb View Assist Mirrors...................2-61
Outside Heated Mirrors................................2-62
Outside Manual Mirrors................................2-59
Outside Power Camper-Type.........................2-60
Outside Power Foldaway Mirrors....................2-61
Outside Power Mirrors..................................2-60
Outside West Coast-Type Mirrors...................2-59
Model Reference................................................ vi
MyGMLink.com................................................ 7-3
N
New Vehicle Break-In......................................2-20
Noise Control System, Tampering......................5-58
Normal Maintenance Replacement Parts...........5-121
O
Odometer......................................................3-35
Off-Road Recovery..........................................4-19
OIL LIFE RESET............................................3-67
OIL PRESSURE LOW.....................................3-67
11

Rear Seat Top Strap Anchors (Extended Cab
Models)......................................................1-45
Rear Seat Top Strap Anchors
(Crew Cab Models)......................................1-46
Rear Window Defogger............................3-24, 3-31
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-56
Rearview Mirror, Automatic Dimming with
OnStar
ž, Compass and Temperature Display . . . 2-53
Rearview Mirrors.............................................2-53
Reclining Seatbacks.......................................... 1-5
Recreational Vehicle Towing.............................4-55
REDUCED ENGINE POWER...........................3-68
Regular Cab and Extended Cab Models.............1-71
Remote Alarm.................................................. 2-5
Remote Control.............................................3-114
Remote Keyless Entry System, Operation............ 2-5
Remote Keyless Entry System............................ 2-4
Removing the Flat Tire and Installing the
Spare Tire..................................................5-85
Removing the Spare Tire and Tools...................5-81
Replacement Bulbs.........................................5-67
Replacing Brake System Parts..........................5-47
Replacing Restraint System Parts After a Crash.....1-82
Reporting Safety Defects................................... 7-9
Canadian Government................................... 7-9
General Motors............................................. 7-9
United States Government.............................. 7-8
Restraint System Check...................................6-13
Checking Your Restraint Systems...................1-81Restraint System Check (cont.)
Replacing Restraint System Parts After a
Crash.....................................................1-82
Restraint Systems...........................................1-81
Checking....................................................1-81
Replacing Parts...........................................1-82
Resynchronization............................................. 2-7
Retained Accessory Power (RAP)......................2-22
Right Front Passenger Position, Safety Belts......1-24
Right Front Passenger Position Top Strap Anchor
(All Models)................................................1-44
RIGHT REAR DOOR AJAR (Crew Cab).............3-68
Roadside......................................................... 7-5
Assistance Program....................................... 7-5
Rocking Your Vehicle To Get It Out...................4-53
Running Your Engine While You Are Parked.......2-52
S
Safety Belt.....................................................3-36
Reminder Light............................................3-36
Safety Belts..................................................5-103
Care of....................................................5-103
Center Passenger Position............................1-24
Driver Position............................................1-16
How to Wear Safety Belts Properly................1-15
Questions and Answers About Safety Belts.....1-14
Rear Safety Belt Comfort Guides for Children
and Small Adults......................................1-29
14

Tires (cont.)
Changing a Flat Tire....................................5-80
Dual Tire Operation.....................................5-70
If a Tire Goes Flat.......................................5-79
In¯ation -- Tire Pressure...............................5-69
Inspection and Rotation................................5-71
Uniform Tire Quality Grading.........................5-75
Wheel Alignment and Tire Balance.................5-76
Wheel Replacement.....................................5-76
When It Is Time for New Tires......................5-73
To Use the Engine Coolant Heater....................2-24
Top Strap Anchor Location...............................1-44
Top Strap......................................................1-42
Torque Lock (Automatic Transmission)...............2-48
Total Weight on Your Vehicle's Tires..................4-84
Tow/Haul Mode Light.......................................3-53
Tow/Haul Mode, Overdrive Disable....................3-53
Tow/Haul Mode
(Automatic Transmission)..............................2-28
Towing..........................................................4-95
Power Take-Off (PTO)..................................4-95
Recreational Vehicle.....................................4-55
Towing a Trailer..........................................4-68
Your Vehicle...............................................4-55
TRACTION ACTIVE........................................3-70
Traction.........................................................4-10
Assist System (TAS)....................................4-10
Manual Selectable Ride................................4-12
Off Light.....................................................3-46Traction (cont.)
Trailer Brakes.................................................4-85
Trailer Wiring Harness.....................................4-89
Trailer...........................................................4-67
Recommendations.......................................4-67
TRANS HOT IDLE ENGINE (Allison
Transmission
žOnly).....................................3-71
Transfer Case and Front Axle (Four-Wheel Drive)
Inspection...................................................6-18
Transfer Case........................................5-54, 5-56
TRANSMISSION HOT.....................................3-70
Transmission Operation, Automatic....................2-25
Transmission Operation, Manual........................2-29
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10
Transmission..................................................5-23
Fluid, Automatic..................................5-23, 5-26
Fluid, Manual..............................................5-28
Temperature Gage.......................................3-47
Up-Shift Light..............................................3-43
Transportation Options...................................... 7-7
Traveling to Remote Areas...............................4-26
Trip Information Button....................................3-55
Trip Odometer................................................3-35
Truck-Camper Loading Information....................4-65
Turn and Lane Change Signals.......................... 3-8
TURN SIGNAL ON.........................................3-71
Turn Signal/Multifunction Lever........................... 3-7
Turn Signals When Towing a Trailer..................4-87
17