2004 CHEVROLET COLORADO service indicator

Brake Wear
Your vehicle has front disc brakes and rear drum brakes.
Disc brake pads have built-in wear indicators that make
a high-pitched warning sound when the brake pads
are worn and new pads are needed. The sound
may come and go or be heard all the time your vehicle
is moving (except when you are pushing on the
brake pedal rmly).
{CAUTION:
The brake wear warning sound means that
soon your brakes will not work well. That
could lead to an accident. When you hear the
brake wear warning sound, have your
vehicle serviced.
Notice:Continuing to drive with worn-out brake
pads could result in costly brake repair.
Some driving conditions or climates may cause a brake
squeal when the brakes are rst applied or lightly
applied. This does not mean something is wrong with
your brakes.Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to GM torque specications.
Rear drum brakes do not have wear indicators, but if
you ever hear a rear brake rubbing noise, have the rear
brake linings inspected immediately. Also, the rear
brake drums should be removed and inspected each
time the tires are removed for rotation or changing.
When you have the front brake pads replaced, have the
rear brakes inspected, too.
Brake linings should always be replaced as complete
axle sets.Brake Pedal Travel
See your dealer if the brake pedal does not return to
normal height, or if there is a rapid increase in
pedal travel. This could be a sign of brake trouble.
Brake Adjustment
Every time you make a brake stop, your brakes adjust
for wear.
5-41

When It Is Time for New Tires
One way to tell when it’s
time for new tires is to
check the treadwear
indicators, which will
appear when your tires
have only 1/16 inch
(1.6 mm) or less of tread
remaining. Some
commercial truck tires
may not have
treadwear indicators.
You need a new tire if any of the following statements
are true:
You can see the indicators at three or more places
around the tire.
You can see cord or fabric showing through the
tire’s rubber.
The tread or sidewall is cracked, cut or snagged
deep enough to show cord or fabric.
The tire has a bump, bulge or split.
The tire has a puncture, cut or other damage that
can’t be repaired well because of the size or
location of the damage.
Buying New Tires
To nd out what kind and size of tires you need, look at
the Certication/Tire label or the Tire and Loading
Information label. SeeLoading Your Vehicle on
page 4-50, for examples of these labels and where they
can be found on your vehicle.
The tires installed on your vehicle when it was new had
a Tire Performance Criteria Specication (TPC Spec)
number on each tire’s sidewall. When you get new tires,
GM recommends that you get tires with that same
TPC Spec number. That way your vehicle will continue
to have tires that are designed to give proper
endurance, handling, speed rating, traction, ride and
other things during normal service on your vehicle.
If your tires have an all-season tread design, the TPC
number will be followed by an “MS” (for mud and snow).
5-67

Compass Operation.........................................2-39
Compass Variance..........................................2-39
Composite Headlamp System...........................5-50
Content Theft-Deterrent....................................2-15
Control of a Vehicle.......................................... 4-5
Coolant
Engine Temperature Gage............................3-24
Heater, Engine............................................2-21
Cooling System..............................................5-30
Crew Cab......................................................1-45
Crew Cab Models and Extended Cab Models
with Rear Seats..................................1-50, 1-58
Cruise Control Light........................................3-28
Cupholder(s)..................................................2-44
Current and Past Model Order Forms................7-13
Customer Assistance Information
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.......7-12
Reporting Safety Defects to the
Canadian Government..............................7-12
Reporting Safety Defects to the
United States Government.........................7-11Customer Assistance Information (cont.)
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-12
D
Daytime Running Lamps.................................... 3-8
Daytime Running Lamps Indicator Light.............3-29
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-13
Dinghy Towing................................................4-45
Doing Your Own Service Work........................... 5-4
Dolly Towing..................................................4-47
Dome Lamp...................................................3-10
Door
Locks.......................................................... 2-7
Power Door Locks......................................... 2-8
Programmable Automatic Door Locks............... 2-8
Rear Door Security Locks............................... 2-9
Rear Doors.................................................2-10
DOORS.........................................................3-33
Driver
Position, Safety Belt.....................................1-16
Driver Information Center (DIC).........................3-30
DIC Controls and Displays............................3-30
DIC Warnings and Messages........................3-32
4

M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month.................................. 6-9
At Least Once a Year.................................... 6-9
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-16
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-14
Owner Checks and Services........................... 6-8
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using Your................................................... 6-3
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-69
Making Turns.................................................4-67
Malfunction Indicator Light................................3-24
Manual Lumbar Controls.................................... 1-5
Manual Seats................................................... 1-3
Manual Transmission.......................................2-19
Fluid..........................................................5-22
Operation...................................................2-25
Manual Windows............................................2-12Map Lamps....................................................2-39
Matching Transmitter(s) to Your Vehicle............... 2-5
Message
DIC Warnings and Messages........................3-32
Mexico, Central America and Caribbean
Islands/Countries (Except Puerto Rico and
U.S. Virgin Islands) – Customer Assistance....... 7-5
Mirror Operation.............................................2-38
Mirrors
Automatic Dimming Rearview with Compass
and Temperature Display...........................2-38
Manual Rearview Mirror................................2-37
Manual Rearview Mirror with OnStar
®.............2-38
Outside Convex Mirror.................................2-42
Outside Manual Mirrors................................2-41
Outside Power Mirrors..................................2-41
Mode Buttons.................................................3-13
Mode Knob....................................................3-12
MyGMLink.com................................................ 7-4
N
New Vehicle Break-In......................................2-17
Normal Maintenance Replacement Parts............6-14
9

U
Understanding Radio Reception........................3-59
Uniform Tire Quality Grading............................5-69
United States – Customer Assistance.................. 7-5
Up-Shift Light.........................................2-26, 3-22
Used Replacement Wheels..............................5-71
Using Cleaner on Fabric..................................5-95
Using Song List Mode.....................................3-56
Using the Recovery Hooks...............................4-43
V
Vehicle
Control........................................................ 4-5
Damage Warnings........................................... iv
Loading......................................................4-50
Parking Your...............................................2-35
Symbols......................................................... iv
Vehicle Data Collection and Event Data
Recorders..................................................7-10
Vehicle Identication
Number (VIN)............................................5-102
Service Parts Identication Label..................5-103
Vehicle Storage..............................................5-42
Ventilation Adjustment......................................3-14
Visors...........................................................2-14
W
Warning Lights, Gages and Indicators................3-15
Warnings
DIC Warnings and Messages........................3-32
Hazard Warning Flashers............................... 3-4
Other Warning Devices.................................. 3-5
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washing Your Vehicle......................................5-98
Weight of the Trailer........................................4-58
Weight of the Trailer Tongue.............................4-64
Weight-Distributing Hitches and Weight
Carrying Hitches..........................................4-65
What Kind of Engine Oil to Use........................5-14
What to Do with Used Oil................................5-17
Wheels
Alignment and Tire Balance..........................5-70
Replacement...............................................5-70
When to Add Engine Oil..................................5-14
When to Change Engine Oil (GM Oil
Life System)...............................................5-16
When to Check and Change Lubricant.......5-48, 5-49
When to Check Power Steering Fluid................5-37
When to Inspect the Engine Air Cleaner/Filter........5-18
When You Are Ready to Leave After Parking
on a Hill.....................................................4-69
15