2004 CHEVROLET SILVERADO warning light

Uniform Tire Quality Grading
Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration, which grades tires by
treadwear, traction and temperature performance. (This
applies only to vehicles sold in the United States.)
The grades are molded on the sidewalls of most
passenger car tires. The Uniform Tire Quality Grading
system does not apply to deep tread, winter-type
snow tires, space-saver or temporary use spare tires,
tires with nominal rim diameters of 10 to 12 inches
(25 to 30 cm), or to some limited-production tires.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to federal safety
requirements and additional General Motors Tire
Performance Criteria (TPC) standards.
Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specied government test course.
For example, a tire graded 150 would wear one and
a half (1.5) times as well on the government course as
a tire graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signicantly from the norm
due to variations in driving habits, service practices and
differences in road characteristics and climate.
Traction – AA, A, B, C
The traction grades, from highest to lowest, are AA, A,
B, and C. Those grades represent the tire’s ability
to stop on wet pavement as measured under controlled
conditions on specied government test surfaces of
asphalt and concrete. A tire marked C may have poor
traction performance. Warning: The traction grade
assigned to this tire is based on straight-ahead braking
traction tests, and does not include acceleration,
cornering, hydroplaning, or peak traction characteristics.
5-88

A
Accessory Power Outlets.................................3-19
Adding a Snow Plow or Similar Equipment.........4-63
Adding Washer Fluid.......................................5-48
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-7
Add-On Electrical Equipment...........................5-123
Add-On Equipment..........................................4-62
Adjusting the Speakers
(Balance/Fade)..................3-75, 3-79, 3-90, 3-104
After Off-Road Driving.....................................4-35
Air Bag
Off Light.....................................................3-37
Passenger Status Indicator...........................3-40
Readiness Light..........................................3-36
Air Bag Systems.............................................1-67
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-83
Air Bag Off Switch.......................................1-73
How Does an Air Bag Restrain?....................1-71
Passenger Sensing System...........................1-78
Servicing Your Air Bag-Equipped Vehicle.........1-83
What Makes an Air Bag Inate?....................1-71
What Will You See After an Air Bag Inates?......1-72
When Should an Air Bag Inate?...................1-70
Where Are the Air Bags?..............................1-68
Air Cleaner/Filter, Engine.................................5-25
Air Conditioning..............................................3-30
Airbag Sensing and Diagnostic Module (SDM)...... 7-9All-Wheel Drive...............................................5-58
All-Wheel Drive (AWD) System.........................2-48
AM .............................................................3-128
AM-FM Radio.................................................3-73
Antenna, Fixed Mast......................................3-130
Antenna, XM™ Satellite Radio
Antenna System........................................3-130
Anti-lock Brake System..................................... 4-6
Anti-Lock Brake, System Warning Light..............3-44
Appearance Care..........................................5-114
Care of Safety Belts...................................5-117
Chemical Paint Spotting..............................5-120
Cleaning the Inside of Your Vehicle..............5-114
Cleaning the Outside of Your Vehicle............5-117
Finish Damage..........................................5-120
Sheet Metal Damage..................................5-120
Underbody Maintenance.............................5-120
Vehicle Care/Appearance Materials...............5-121
Weatherstrips............................................5-117
Approaching a Hill..........................................4-28
Ashtrays........................................................3-20
Audio Output................................................3-116
Audio System(s).............................................3-72
AM-FM Radio.............................................3-73
Audio Steering Wheel Controls....................3-127
Care of Your Cassette Tape Player...............3-129
Care of Your CD and DVD Player................3-130
Care of Your CDs and DVDs.......................3-130
Chime Level Adjustment.............................3-130
Fixed Mast Antenna...................................3-130
1

Audio System(s) (cont.)
Radio with Cassette and CD.........................3-86
Radio with CD............................................3-76
Radio with Six-Disc CD..............................3-100
Rear Seat Audio (RSA)...............................3-125
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 Feature...............................3-127
Understanding Radio Reception...................3-128
XM™ Satellite Radio Antenna System...........3-130
Automatic Dimming Mirror Operation..........2-56, 2-58
Automatic Headlamp System............................3-14
Automatic Transfer Case..................................2-40
Automatic Transmission...................2-24, 2-49, 2-51
Fluid..................................................5-27, 5-30
Operation...................................................2-27
Auxiliary Battery............................................4-100
Auxiliary Roof Mounted Lamp Switch.................3-17
B
Backing Up....................................................4-92
Battery..........................................................5-52
BATTERY NOT CHARGING.............................3-64
Battery Replacement......................................... 2-6
Battery Run-Down Protection............................3-19
Battery Warning Light......................................3-42Before Leaving on a Long Trip.........................4-42
Before You Drive...........................................3-114
Before You Go Off-Roading..............................4-23
Brake
Parking......................................................2-48
System Warning Light..................................3-43
Brake Adjustment............................................5-51
Brake Fluid....................................................5-49
Brake Pedal Travel.........................................5-51
Brake Wear...................................................5-51
Brakes..........................................................5-49
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-22
BUCKLE PASSENGER....................................3-65
BUCKLE SEATBELT.......................................3-65
Bulb Replacement...........................................5-63
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp............................................5-68
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-65
Halogen Bulbs............................................5-63
Headlamps.................................................5-63
Pickup Box Identication and Fender
Marker Lamps.........................................5-69
Replacement Bulbs......................................5-72
Roof Marker Lamps.....................................5-66
Taillamps....................................................5-70
Buying New Tires...........................................5-86
2

Fluid
Automatic Transmission........................5-27, 5-30
Manual Transmission....................................5-33
Power Steering...........................................5-46
Windshield Washer......................................5-47
FM Stereo....................................................3-128
Fog Lamps....................................................3-16
Folding the Rear Seat....................................... 1-9
Following Distance..........................................4-91
Four-Wheel Drive....................................2-36, 5-60
Four-Wheel-Drive Light....................................3-51
Front Axle Locking Feature...............................2-36
Front Reading Lamps......................................3-18
Front Storage Area.........................................2-68
Fuel............................................................... 5-5
Additives...................................................... 5-7
California Fuel.............................................. 5-6
E-85 (85% Ethanol)....................................... 5-8
Filling a Portable Fuel Container....................5-11
Filling Your Tank........................................... 5-9
Fuels in Foreign Countries.............................. 5-9
Gage.........................................................3-52
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-6
Low Warning Light.......................................3-53Fuel Information Button....................................3-56
FUEL LEVEL LOW.........................................3-66
Fuses
Fuses and Circuit Breakers.........................5-123
Windshield Wiper.......................................5-123
G
Gage
Engine Coolant Temperature.........................3-46
Fuel..........................................................3-52
Oil Pressure...............................................3-50
Speedometer..............................................3-35
Tachometer.................................................3-35
Transmission Temperature.............................3-46
Voltmeter Gage...........................................3-42
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-6
Getting Familiar with Off-Road Driving................4-25
Glove Box.....................................................2-67
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
7

H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-8
Headlamp High/Low-Beam Changer.................... 3-8
Headlamps....................................................5-63
Bulb Replacement.......................................5-63
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-65
Halogen Bulbs............................................5-63
Pickup Box Identication and Fender
Marker Lamps.........................................5-69
Roof Marker Lamps.....................................5-66
Headphones.................................................3-115
Heated Seats................................................... 1-5
Heating.........................................................3-30
Heavy-DutyTrailer Wiring Harness Package........4-96
Highway Hypnosis...........................................4-43
Hill and Mountain Roads..................................4-44
Hitches..........................................................4-88
Hood
Checking Things Under................................5-12
Release.....................................................5-12
Horn............................................................... 3-6
How to Add Coolant to the Coolant Surge Tank
for Gasoline Engines....................................5-43
How to Add Fluid............................5-30, 5-33, 5-34How to Check and Add Fluid............................5-35
How to Check Lubricant...................................5-59
How to Check Power Steering Fluid..................5-47
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-16
Hydraulic Clutch.............................................5-34
Hydroplaning..................................................4-39
I
If No Steam Is Coming From Your Engine..........5-40
If Steam Is Coming From Your Engine...............5-39
If the Light is Flashing.....................................3-49
If the Light Is On Steady.................................3-49
If You Are Caught in a Blizzard.........................4-48
If You Are Stuck in Sand, Mud, Ice or Snow.......4-50
If You Do Decide To Pull A Trailer.....................4-70
Ignition Positions.............................................2-23
Infants and Young Children, Restraints...............1-34
Ination - Tire Pressure...................................5-82
Instrument Panel
Cluster.......................................................3-34
Overview..................................................... 3-4
Instrument Panel Brightness Control..................3-18
Instrument Panel Fuse Block..........................5-124
Interior Lamps................................................3-18
8

J
Jump Starting.................................................5-53
K
Key Release Button (Manual Transmission)........2-24
KEYFOB X BATTERY LOW.............................3-66
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Lamps
Exterior......................................................3-13
Interior.......................................................3-18
Lamps On Reminder.......................................3-15
Lap Belt........................................................1-25
Lap-Shoulder Belt...........................................1-16
LATCH System
Child Restraints...........................................1-47
Securing a Child Restraint Designed for the
LATCH System................................1-48, 1-49
Latches, Seatback............................................ 1-8
Leaving Your Vehicle With the Engine Running
(Automatic Transmission)..............................2-50
LEFT REAR DOOR AJAR (Crew Cab)...............3-67Light
Air Bag Off .................................................3-37
Air Bag Readiness.......................................3-36
Anti-Lock Brake System Warning...................3-44
Battery Warning..........................................3-42
Brake System Warning.................................3-43
Cruise Control.............................................3-51
Four-Wheel-Drive.........................................3-51
Low Fuel Warning.......................................3-53
Malfunction Indicator....................................3-48
Passenger Air Bag Status Indicator................3-40
Safety Belt Reminder...................................3-36
Tow/Haul Mode...........................................3-52
Traction Off................................................3-45
Up-Shift.....................................................3-43
Listening to a DVD..............................3-100, 3-114
Loading Your Vehicle.......................................4-56
Loading Your Vehicle for Off-Road Driving..........4-24
Locking Rear Axle...........................................4-12
Lockout Protection..........................................2-14
Lock-Out Switch.............................................2-18
Locks
Delayed Locking..........................................2-10
Door........................................................... 2-8
Lockout Protection.......................................2-14
Power Door.................................................. 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-13
9

Loss of Control...............................................4-20
LOW COOLANT LEVEL..................................3-67
Low Fuel Warning Light...................................3-53
Lumbar
Power Controls............................................. 1-5
M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill.........................................6-10
At Least Once a Month................................6-10
At Least Once a Year..................................6-11
At the First 100, 1,000 and 6,000 Miles
(160, 1 600 and 10 000km).......................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-8
Maintenance Record....................................6-19
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-16
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-13
Scheduled Maintenance................................. 6-4
Using Your................................................... 6-3
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-94
Making Turns.................................................4-92
Malfunction Indicator Light................................3-48Manual Seats................................................... 1-3
Manual Selectable Ride...................................4-11
Manual Transfer Case.....................................2-37
Manual Transmission...............................2-25, 2-52
Fluid..........................................................5-33
Operation...................................................2-31
Manual Windows............................................2-17
Matching Transmitter(s) to Your Vehicle............... 2-6
Memory Seat.................................................2-70
Message
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
Automatic Dimming Rearview with Compass
and Temperature Display...........................2-58
Automatic Dimming Rearview with OnStar
®,
Compass and Temperature Display.............2-55
Manual Rearview Mirror................................2-55
Outside Automatic Dimming Mirror.................2-64
Outside Camper-Type Mirrors........................2-61
Outside Convex Mirror.................................2-65
Outside Curb View Assist Mirrors...................2-64
Outside Heated Mirrors................................2-65
Outside Manual Mirrors................................2-60
Outside Power Camper-Type.........................2-62
Outside Power Foldaway Mirrors....................2-63
10

Rocking Your Vehicle To Get It Out...................4-51
Routing, Engine Drive Belt...............................6-18
Running Your Engine While You Are Parked.......2-53
S
Safety Belt
Reminder Light............................................3-36
Safety Belts
Care of....................................................5-117
Center Passenger Position............................1-24
Driver Position............................................1-16
How to Wear Safety Belts Properly................1-16
Questions and Answers About Safety Belts.....1-15
Rear Safety Belt Comfort Guides for Children
and Small Adults......................................1-29
Rear Seat Passengers.................................1-26
Right Front Passenger Position......................1-24
Safety Belt Extender....................................1-31
Safety Belt Use During Pregnancy.................1-23
Safety Belts Are for Everyone.......................1-10
Safety Chains.................................................4-90
Safety Warnings and Symbols.............................. iii
Scanning the Terrain.......................................4-26
Scheduled Maintenance..................................... 6-4
Seatback Latches............................................. 1-8
Seats
Head Restraints............................................ 1-8
Heated Seats............................................... 1-5Seats (cont.)
Manual........................................................ 1-3
Memory.....................................................2-70
Power Lumbar.............................................. 1-5
Power Seats................................................. 1-4
Rear Seat Operation...................................... 1-9
Reclining Seatbacks...................................... 1-6
Seatback Latches.......................................... 1-8
Secondary Latch System................................5-110
Securing a Child Restraint
Center Front Seat Position............................1-58
Center Rear Seat Position............................1-56
Designed for the LATCH System...........1-48, 1-49
Rear Outside Seat Position...........................1-53
Right Front Seat Position (Crew Cab).............1-58
Right Front Seat Position (Regular and
Extended Cab).........................................1-61
Security While You Travel.................................. 7-6
Select Button.................................................3-64
Service........................................................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-5
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-48
Publications Ordering Information...................7-11
SERVICE 4 WHEEL STEER.............................3-69
SERVICE 4WD...............................................3-69
SERVICE AIRBAG..........................................3-68
SERVICE BRAKE BOOSTER...........................3-68
SERVICE BRAKE SYSTEM.............................3-68
14