2003 CHEVROLET BLAZER warning light

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-7
Safety Belts
.............................................. 1-9
Child Restraints
.......................................1-32
Air Bag System
.......................................1-52
Restraint System Check
............................1-58
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-7
Windows
.................................................2-11
Theft-Deterrent Systems
............................2-17
Starting and Operating Your Vehicle
...........2-19
Mirrors
....................................................2-41
HomeLink
žTransmitter
.............................2-44
Storage Areas
.........................................2-48
Vehicle Personalization
.............................2-61
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-2
Climate Controls
......................................3-17
Warning Lights, Gages and Indicators
.........3-21
Audio System(s)
.......................................3-37Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-45
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-4
Checking Things Under the Hood
................. 5-8
Rear Axle
...............................................5-45
Four-Wheel Drive
.....................................5-45
Front Axle
...............................................5-46
Bulb Replacement
....................................5-47
Windshield Wiper Blade Replacement
.........5-52
Tires
......................................................5-54
Appearance Care
.....................................5-76
Vehicle Identi®cation
.................................5-83
Electrical System
......................................5-84
Capacities and Speci®cations
.....................5-91
Normal Maintenance Replacement Parts
......5-92
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance Information
.................. 7-2
Reporting Safety Defects
...........................7-10
INDEX................................................................1
2003 Chevrolet Blazer Owner ManualM

Vehicle Damage Warnings
Also, in this book you will ®nd these notices:
Notice:These mean there is something that could
damage your vehicle.
A notice will tell you about something that can damage
your vehicle. Many times, this damage would not be
covered by your warranty, and it could be costly. But the
notice will tell you what to do to help avoid the
damage.
When you read other manuals, you might see CAUTION
and NOTICE warnings in different colors or in different
words.
You'll also see warning labels on your vehicle. They use
the same words, CAUTION or NOTICE.
Vehicle Symbols
Your vehicle has components and labels that use
symbols instead of text. Symbols, used on your vehicle,
are shown along with the text describing the operation
or information relating to a speci®c component, control,
message, gage or indicator.
If you need help ®guring out a speci®c name of a
component, gage or indicator, reference the following
topics:
·Seats and Restraint Systems in Section 1
·Features and Controls in Section 2
·Instrument Panel Overview in Section 3
·Climate Controls in Section 3
·Warning Lights, Gages and Indicators in Section 3
·Audio System(s) in Section 3
·Engine Compartment Overview in Section 5
iv

Indicator lights in the buttons show which setting you
are in. The indicator lights will come on brie¯y when you
turn on the ignition and one will stay on. If the lights
do not come on, you should take your vehicle to your
dealer for service. An indicator light will ¯ash while
shifting the transfer case. It will remain illuminated when
the shift is complete. If for some reason the transfer
case cannot make a requested shift, it will return to the
last chosen setting.
If the SERVICE 4WD light stays on, you should take
your vehicle to your dealer for service. See
Service
Four-Wheel Drive Warning Light on page 3-34for further
information.
Shifting to 4HI or AUTO 4WD
Press and release the 4HI or AUTO 4WD button. This
can be done at any speed, and the indicator light
will ¯ash while shifting. It will remain illuminated when
the shift is complete.
Shifting to 2HI
Press and release the 2HI button. This can be done at
any speed.
Shifting to 4LO
To shift to 4LO, the vehicle's engine must be running
and the vehicle must be stopped or moving less
than 3 mph (4.8 km/h) with the transmission in
NEUTRAL (N) or with the clutch pedal pressed for
vehicles with manual transmission. The preferred
method for shifting into 4LO is to have your vehicle
moving 1 or 2 mph (1.6 to 3.2 km/h). Press and release
the 4LO button. You must wait for the 4LO indicator
light to stop ¯ashing and remain illuminated before
shifting your transmission into gear.
If the 4LO button is pressed when your vehicle is in
gear and/or moving, the 4LO indicator light will ¯ash for
30 seconds and not complete the shift unless your
vehicle is moving less than 3 mph (4.8 km/h) and the
transmission is in NEUTRAL (N) or with the clutch pedal
pressed for vehicles with manual transmission. After
30 seconds, the transfer case will return to the setting
last chosen.
2-32

Shifting out of NEUTRAL
To shift out of NEUTRAL:
1. Set the parking brake and apply the regular brake
pedal.
2. Start the vehicle with the transmission in PARK (P)
or FIRST (1) for vehicles with manual transmission.
3. Press the button for the desired transfer case
position (2HI, 4HI, AUTO 4WD or 4LO).
4. Put the transmission in NEUTRAL (N) or press the
clutch pedal for vehicles with manual transmission.
5. Shift the transmission lever to the desired position.
After the transfer case has shifted out of NEUTRAL,
the NEUTRAL light will go out.
A re-engagement sound is normal when shifting out of
NEUTRAL
Parking Brake
The parking brake is located near the bottom of the
instrument panel on the driver's side of the vehicle.
To set the parking brake, hold the regular brake pedal
down with your right foot. Push down the parking
brake pedal with your left foot. If the ignition is on, the
brake system warning light will come on.
Notice:Driving with the parking brake on can
cause your rear brakes to overheat. You may have
to replace them, and you could also damage
other parts of your vehicle.
To release the parking brake, hold the regular brake
pedal down. Pull the BRAKE RELEASE lever fully. It is
located on the bottom off the instrument panel on
the driver's side of the vehicle.
If you are towing a trailer and you must park on a hill,
see
Towing a Trailer on page 4-54. That section
shows what to do ®rst to keep the trailer from moving.
2-34

Instrument Panel Overview...............................3-2
Hazard Warning Flashers................................3-3
Other Warning Devices...................................3-4
Horn.............................................................3-4
Tilt Wheel.....................................................3-4
Turn Signal/Multifunction Lever.........................3-5
Exterior Lamps.............................................3-11
Interior Lamps..............................................3-14
Accessory Power Outlets...............................3-15
Ashtrays and Cigarette Lighter........................3-16
Climate Controls............................................3-17
Climate Control System.................................3-17
Outlet Adjustment.........................................3-20
Warning Lights, Gages and Indicators.............3-21
Instrument Panel Cluster................................3-22
Speedometer and Odometer...........................3-24
Trip Odometer..............................................3-24
Tachometer.................................................3-24
Safety Belt Reminder Light.............................3-25
Air Bag Readiness Light................................3-25
Charging System Light..................................3-26
Voltmeter Gage............................................3-27
Up-Shift Light...............................................3-27
Brake System Warning Light..........................3-28
Anti-Lock Brake System Warning Light.............3-29
Engine Coolant Temperature Gage..................3-29Malfunction Indicator Lamp.............................3-30
Oil Pressure Gage........................................3-33
Security Light...............................................3-34
Service Four-Wheel Drive Warning Light..........3-34
Tow/Haul Mode Light....................................3-35
Check Gages Warning Light...........................3-35
Gate Ajar Light.............................................3-35
Fuel Gage...................................................3-35
Low Fuel Warning Light.................................3-36
Audio System(s).............................................3-37
Setting the Time for Radios without Radio
Data Systems (RDS)..................................3-37
Setting the Time for Radios with Radio Data
Systems (RDS).........................................3-38
AM-FM Radio...............................................3-38
Radio with CD..............................................3-41
Radio with Cassette and CD..........................3-48
Radio with Six-Disc CD.................................3-58
Theft-Deterrent Feature (Non-RDS Radios).......3-68
Theft-Deterrent Feature (RDS Radios).............3-68
Understanding Radio Reception......................3-69
Care of Your Cassette Tape Player.................3-69
Care of Your CDs.........................................3-70
Care of Your CD Player................................3-70
Fixed Mast Antenna......................................3-70
Section 3 Instrument Panel
3-1

Warning Lights, Gages and
Indicators
This part describes the warning lights and gages that
may be on your vehicle. The pictures will help you
locate them.
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause
an expensive repair or replacement. Paying attention to
your warning lights and gages could also save you
or others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle's functions. As you will
see in the details on the next few pages, some
warning lights come on brie¯y when you start the
engine just to let you know they're working. If you are
familiar with this section, you should not be alarmed
when this happens.Gages can indicate when there may be or is a problem
with one of your vehicle's functions. Often gages
and warning lights work together to let you know when
there's a problem with your vehicle.
When one of the warning lights comes on and stays on
when you are driving, or when one of the gages
shows there may be a problem, check the section that
tells you what to do about it. Please follow this
manual's advice. Waiting to do repairs can be
costly±and even dangerous. So please get to know your
warning lights and gages. They're a big help.
3-21

Voltmeter Gage
When your engine is not
running, but the ignition is
on (in RUN), this gage
shows your battery's state
of charge in DC volts.
When the engine is running, the gage shows the
condition of the charging system. Readings between the
low and high warning zones indicate the normal
operating range.
Readings in the low warning zone may occur when a
large number of electrical accessories are operating in
the vehicle and the engine is left at an idle for an
extended period. This condition is normal since the
charging system is not able to provide full power
at engine idle. As engine speeds are increased, this
condition should correct itself as higher engine speeds
allow the charging system to create maximum power.You can only drive for a short time with the reading in
either warning zone. If you must drive, turn off all
unnecessary accessories.
Readings in either warning zone indicate a possible
problem in the electrical system. Have the vehicle
serviced as soon as possible.
Up-Shift Light
You have the shift light if
you have a manual
transmission.
Shifting when the indicator light is on will help you get
the best fuel economy. See ªUp±Shift Lightº under
Manual Transmission Operation on page 2-27.
3-27

Brake System Warning Light
When the ignition is on, the brake system warning light
will come on when you set your parking brake. The
light will stay on if your parking brake doesn't release
fully. If it stays on after your parking brake is fully
released, it means you have a brake problem.
Your vehicle's hydraulic brake system is divided into two
parts. If one part isn't working, the other part can still
work and stop you. For good braking, though, you need
both parts working well.
If the warning light comes on, there could be a brake
problem. Have your brake system inspected right away.This light should come on brie¯y when you turn the
ignition key to RUN. If it doesn't come on then, have it
®xed so it will be ready to warn you if there's a
problem.
If the light comes on while you are driving, pull off the
road and stop carefully. You may notice that the pedal is
harder to push. Or, the pedal may go closer to the
¯oor. It may take longer to stop. If the light is still on,
have the vehicle towed for service. See
Towing
Your Vehicle on page 4-45.
{CAUTION:
Your brake system may not be working
properly if the brake system warning light is
on. Driving with the brake system warning light
on can lead to an accident. If the light is still
on after you've pulled off the road and stopped
carefully, have the vehicle towed for service.
United States
Canada
3-28