2003 CHEVROLET BLAZER warning light

Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle has to have extra
wiring and a heavy-duty turn signal ¯asher (included
in the optional trailering package).
The arrows on your instrument panel will ¯ash whenever
you signal a turn or lane change. Properly hooked up,
the trailer lamps will also ¯ash, telling other drivers
you're about to turn, change lanes or stop.
When towing a trailer, the arrows on your instrument
panel will ¯ash for turns even if the bulbs on the trailer
are burned out. Thus, you may think drivers behind
you are seeing your signal when they are not. It's
important to check occasionally to be sure the trailer
bulbs are still working.
Driving On Grades
Reduce speed and shift to a lower gearbeforeyou start
down a long or steep downgrade. If you don't shift
down, you might have to use your brakes so much that
they would get hot and no longer work well.If you have an automatic transmission, you can tow in
DRIVE (D). You may want to shift the transmission
to THIRD (3) or, if necessary, a lower gear selection if
the transmission shifts too often (e.g., under heavy loads
and/or hilly conditions). Or, if you have a manual
transmission and you are towing a trailer, it's better not
to use FIFTH (5) gear. Just drive in FOURTH (4)
gear (or, as you need to, a lower gear). See
Tow/Haul
Mode Light on page 3-35.
When towing at high altitude on steep uphill grades,
consider the following: Engine coolant will boil at a lower
temperature than at normal altitudes. If you turn your
engine off immediately after towing at high altitude
on steep uphill grades, your vehicle may show signs
similar to engine overheating. To avoid this, let the
engine run while parked (preferably on level ground)
with the automatic transmission in PARK (P) (or
the manual transmission out of gear and the parking
brake applied) for a few minutes before turning the
engine off. If you do get the overheat warning,
see
Engine Overheating on page 5-25.
4-62

How to Check and Add Fluid
The proper ¯uid should be added if the level does not
reach the bottom of the diaphragm when it's in place in
the reservoir. See the instructions on the reservoir cap.
Engine Coolant
The cooling system in your vehicle is ®lled with
DEX-COOLžengine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs ®rst, if you add
only DEX-COOL
žextended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem
with engine overheating, see
Engine Overheating on
page 5-25.A 50/50 mixture of clean, drinkable water and
DEX-COOL
žcoolant will:
·Give freezing protection down to-34ÉF (-37ÉC).
·Give boiling protection up to 265ÉF (129ÉC).
·Protect against rust and corrosion.
·Help keep the proper engine temperature.
·Let the warning lights and gages work as they
should.
Notice:When adding coolant, it is important that
you use only DEX-COOLž(silicate-free) coolant.
If coolant other than DEX-COOLžis added to
the system, premature engine, heater core or
radiator corrosion may result. In addition, the engine
coolant will require change sooner -- at 30,000 miles
(50,000 km) or 24 months, whichever occurs ®rst.
Damage caused by the use of coolant other
than DEX-COOL
žis not covered by your new vehicle
warranty.
5-22

Brake Wear
If you have four-wheel drive, your vehicle has four-wheel
disc brakes. If not, 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 won't 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 speci®cations.
If you have rear drum brakes, they don't 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.
See
Brake System Inspection on page 6-32.
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 disc brakes
adjust for wear.
If you don't have four-wheel drive and your brake pedal
goes down farther than normal, your rear drum
brakes may need adjustment. Adjust them by backing
up and ®rmly applying the brakes a few times.
5-39

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 speci®ed 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 signi®cantly 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 speci®ed 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.
5-59

A
Accessory Power Outlets.................................3-15
Adding Equipment to Your Air Bag-Equipped
Vehicle.......................................................1-58
Adding Washer Fluid.......................................5-36
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-5
Add-On Electrical Equipment............................5-84
Add-On Equipment..........................................4-54
Adjusting the Speakers
(Balance/Fade)....................3-40, 3-43, 3-50, 3-60
After Off-Road Driving.....................................4-28
Air Bag System..............................................1-52
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-58
How Does an Air Bag Restrain?....................1-55
Servicing Your Air Bag-Equipped Vehicle.........1-57
What Makes an Air Bag In¯ate?....................1-55
What Will You See After an Air
Bag In¯ates?...........................................1-56
When Should an Air Bag In¯ate?...................1-55
Where Are the Air Bags?..............................1-53
Air Bag .........................................................3-25
Readiness Light..........................................3-25
Air Cleaner/Filter, Engine.................................5-15
Air Conditioning Refrigerant Capacity.................5-92
AM-FM Radio.................................................3-38
AM ...............................................................3-69
Antenna, Fixed Mast.......................................3-70Anti-Lock Brake, System Warning Light..............3-29
Anti-lock Brake System..................................... 4-8
Appearance Care............................................5-76
Care of Safety Belts....................................5-78
Chemical Paint Spotting...............................5-82
Cleaning the Inside of Your Vehicle................5-77
Cleaning the Outside of Your Vehicle..............5-79
Finish Damage............................................5-81
Sheet Metal Damage...................................5-81
Underbody Maintenance...............................5-81
Vehicle Care/Appearance Materials................5-82
Weatherstrips..............................................5-79
Approaching a Hill..........................................4-20
Ashtrays........................................................3-16
Assist Handles...............................................2-56
Audio System(s).............................................3-37
AM-FM Radio.............................................3-38
Care of Your Cassette Tape Player................3-69
Care of Your CD Player...............................3-70
Care of Your CDs........................................3-70
Fixed Mast Antenna.....................................3-70
Radio with Cassette and CD.........................3-48
Radio with CD............................................3-41
Radio with Six-Disc CD................................3-58
Setting the Time for Radios with Radio Data
Systems (RDS)........................................3-38
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-37
Theft-Deterrent Feature................................3-68
Understanding Radio Reception.....................3-69
1

Audio System(s) (cont.)
Automatic Headlamp System............................3-11
Automatic Transfer Case..................................2-31
Automatic Transmission Check..........................6-28
Automatic Transmission Shift Lock Control
System Check.............................................6-29
Automatic Transmission...................................2-21
Fluid..........................................................5-17
Operation...................................................2-23
B
Backing Up....................................................4-61
Battery Replacement......................................... 2-6
Battery Run-Down Protection............................3-15
Battery..........................................................5-40
Before Leaving on a Long Trip.........................4-35
Before You Go Off-Roading..............................4-16
Body Lubrication Service..................................6-28
Brake Adjustment............................................5-39
Brake Fluid....................................................5-37
Brake Pedal Travel.........................................5-39
Brake Wear...................................................5-39
Brake............................................................2-34
Parking......................................................2-34
System Inspection.......................................6-32
System Warning Light..................................3-28
Brakes..........................................................5-37
Braking in Emergencies...................................4-10Braking........................................................... 4-8
Break-In, New Vehicle.....................................2-19
Bulb Replacement...........................................5-47
Halogen Bulbs............................................5-47
Headlamps.................................................5-48
One-Piece Front Turn Signal Lamps...............5-50
Replacement Bulbs......................................5-52
Taillamps....................................................5-51
Two-Piece Front Turn Signal Lamps...............5-50
Buying New Tires...........................................5-58C
California Fuel.................................................. 5-5
Canada ± Customer Assistance.......................... 7-5
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-8
Capacities and Speci®cations............................5-91
Capacities......................................................5-91
Carbon Monoxide...........................4-38, 4-54, 2-39
Care of.........................................................5-78
Safety Belts................................................5-78
Your Cassette Tape Player............................3-69
Your CD Player...........................................3-70
Your CDs ...................................................3-70
Cargo Cover..................................................2-58
Cargo Tie-Downs............................................2-58
Cassette Tape Messages.................................3-55
Cassette Tape Player Service...........................6-27
2

Center Front Passenger Position, Safety Belts....1-22
Center Rear Passenger Position, Safety Belts.....1-27
Center Seat Positions, Child Restraints..............1-51
Chains, Tires..................................................5-62
Charging System Light....................................3-26
Checking Brake Fluid......................................5-38
Checking Coolant............................................5-24
Checking Engine Oil........................................5-11
Checking Things Under the Hood....................... 5-8
Checking Your Restraint Systems......................1-58
Check...........................................................3-30
Engine Light...............................................3-30
Gages Warning Light...................................3-35
Chemical Paint Spotting...................................5-82
Child Restraints..............................................1-51
Center Seat Positions..................................1-51
Child Restraint Systems...............................1-38
Infants and Young Children...........................1-34
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-44
Older Children.............................................1-32
Securing a Child Restraint Designed for the
LATCH System........................................1-46
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-46
Securing a Child Restraint in the Right Front
Seat Position...........................................1-49
Top Strap Anchor Location............................1-43Child Restraints (cont.)
Top Strap...................................................1-42
Where to Put the Restraint...........................1-41
Cigarette Lighter.............................................3-16
Cleaning Aluminum Wheels..............................5-80
Cleaning Exterior Lamps/Lenses.......................5-79
Cleaning Fabric/Carpet....................................5-77
Cleaning Glass Surfaces..................................5-78
Cleaning Interior Plastic Components.................5-78
Cleaning Leather............................................5-77
Cleaning the Mirror.........................................2-42
Cleaning the Photocells...................................2-42
Cleaning the Top of the Instrument Panel...........5-78
Cleaning the Windshield, Backglass and
Wiper Blades..............................................5-80
Cleaning Tires................................................5-81
Cleaning Vinyl................................................5-77
Cleaning Wood Panels....................................5-78
Cleaning........................................................5-77
Inside of Your Vehicle..................................5-77
Outside of Your Vehicle................................5-79
Underbody Maintenance...............................5-81
Weatherstrips..............................................5-79
Climate Control System...................................3-17
Outlet Adjustment........................................3-20
Clutch, Hydraulic.............................................5-21
Column Shift Lever.........................................2-35
Compact Disc Messages.................3-47, 3-57, 3-68
Compact Spare Tire........................................5-75
Console Shift Lever.........................................2-36
3

F
Filter.............................................................5-15
Engine Air Cleaner......................................5-15
Finding a PTY Station.....................3-44, 3-51, 3-61
Finding a Station....................3-39, 3-41, 3-49, 3-58
Finish Care....................................................5-79
Finish Damage...............................................5-81
Five-Speed....................................................2-27
Fixed Mast Antenna........................................3-70
Flash-to-Pass Feature....................................... 3-6
Flat Tire, Changing.........................................5-63
Flat Tire........................................................5-62
Fluid.............................................................5-17
Automatic Transmission................................5-17
Manual Transmission....................................5-20
Power Steering...........................................5-35
Windshield Washer......................................5-36
FM ...............................................................3-69
Fog Lamps....................................................3-13
Following Distance..........................................4-61
Four Door Models...........................1-27, 1-29, 1-51
Four-Wheel Drive....................................2-28, 5-45
Front Axle......................................................5-46
Front Map Lamps...........................................3-14
Front Reading Lamps......................................3-14
Front Storage Area.........................................2-55
Fuel............................................................... 5-4
Additives...................................................... 5-5
California Fuel.............................................. 5-5Fuel (cont.)
Filling a Portable Fuel Container..................... 5-8
Filling Your Tank........................................... 5-6
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-35
Gasoline Octane........................................... 5-4
Gasoline Speci®cations.................................. 5-5
Low Warning Light.......................................3-36
System Inspection.......................................6-31
Fuses...........................................................5-85
Fuses and Circuit Breakers...........................5-85
Windshield Wiper.........................................5-85
G
Gage............................................................3-35
Check Gages Warning Light..........................3-35
Engine Coolant Temperature.........................3-29
Fuel..........................................................3-35
Oil Pressure...............................................3-33
Speedometer..............................................3-24
Tachometer.................................................3-24
Voltmeter Gage...........................................3-27
Garage Door Opener.......................................2-44
Garment Hooks..............................................2-56
Gasoline......................................................... 5-4
Octane........................................................ 5-4
Speci®cations............................................... 5-5
Gate Ajar Light...............................................3-35
6