check engine light CHEVROLET BLAZER 2003 2.G User Guide

Once you are moving on the freeway, make certain you
allow a reasonable following distance. Expect to
move slightly slower at night.
When you want to leave the freeway, move to the
proper lane well in advance. If you miss your exit, do
not, under any circumstances, stop and back up. Drive
on to the next exit.
The exit ramp can be curved, sometimes quite sharply.
The exit speed is usually posted.
Reduce your speed according to your speedometer, not
to your sense of motion. After driving for any distance
at higher speeds, you may tend to think you are
going slower than you actually are.
Before Leaving on a Long Trip
Make sure you're ready. Try to be well rested. If you
must start when you're not fresh Ð such as after a day's
work Ð don't plan to make too many miles that ®rst
part of the journey. Wear comfortable clothing and shoes
you can easily drive in.Is your vehicle ready for a long trip? If you keep it
serviced and maintained, it's ready to go. If it needs
service, have it done before starting out. Of course,
you'll ®nd experienced and able service experts in GM
dealerships all across North America. They'll be
ready and willing to help if you need it.
Here are some things you can check before a trip:
·Windshield Washer Fluid:Is the reservoir full? Are
all windows clean inside and outside?
·Wiper Blades:Are they in good shape?
·Fuel, Engine Oil, Other Fluids:Have you checked
all levels?
·Lamps:Are they all working? Are the lenses clean?
·Tires:They are vitally important to a safe,
trouble-free trip. Is the tread good enough for
long-distance driving? Are the tires all in¯ated to the
recommended pressure?
·Weather Forecasts:What's the weather outlook
along your route? Should you delay your trip a
short time to avoid a major storm system?
·Maps:Do you have up-to-date maps?
4-35

{CAUTION:
Snow can trap exhaust gases under your
vehicle. This can cause deadly CO (carbon
monoxide) gas to get inside. CO could
overcome you and kill you. You can't see it or
smell it, so you might not know it is in your
vehicle. Clear away snow from around the
base of your vehicle, especially any that is
blocking your exhaust pipe. And check around
again from time to time to be sure snow
doesn't collect there.
Open a window just a little on the side of the
vehicle that's away from the wind. This will
help keep CO out.Run your engine only as long as you must. This saves
fuel. When you run the engine, make it go a little
faster than just idle. That is, push the accelerator
slightly. This uses less fuel for the heat that you get and
it keeps the battery charged. You will need a
well-charged battery to restart the vehicle, and possibly
for signaling later on with your headlamps. Let the
heater run for a while.
Then, shut the engine off and close the window almost
all the way to preserve the heat. Start the engine
again and repeat this only when you feel really
uncomfortable from the cold. But do it as little as
possible. Preserve the fuel as long as you can. To help
keep warm, you can get out of the vehicle and do
some fairly vigorous exercises every half hour or so until
help comes.
4-41

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

4. Open the hoods and locate the batteries. Find the
positive (+) and negative (-) terminal locations on
each vehicle. See
Engine Compartment Overview
on page 5-10for more information on location of the
battery.
{CAUTION:
Using a match near a battery can cause battery
gas to explode. People have been hurt doing
this, and some have been blinded. Use a
¯ashlight if you need more light.
Be sure the batteries have enough water. You
don't need to add water to the ACDelco
ž
battery (or batteries) installed in your new
vehicle. But if a battery has ®ller caps, be sure
the right amount of ¯uid is there. If it is low,
add water to take care of that ®rst. If you don't,
explosive gas could be present.
Battery ¯uid contains acid that can burn you.
Don't get it on you. If you accidentally get it in
your eyes or on your skin, ¯ush the place with
water and get medical help immediately.
{CAUTION:
Fans or other moving engine parts can injure
you badly. Keep your hands away from moving
parts once the engine is running.
5. Check that the jumper cables don't have loose or
missing insulation. If they do, you could get a
shock. The vehicles could be damaged too.
Before you connect the cables, here are some
basic things you should know. Positive (+) will go to
positive (+) or to a remote positive (+) terminal if
the vehicle has one. Negative (-) will go to a heavy,
unpainted metal engine part or to a remote
negative (-) terminal if the vehicle has one.
Don't connect positive (+) to negative (-) or you'll
get a short that would damage the battery and
maybe other parts too. And don't connect the
negative(-) cable to the negative (-) terminal on the
dead battery because this can cause sparks.
5-42

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

Driving On Grades..........................................4-62
Driving on Off-Road Hills.................................4-19
Driving on Snow or Ice....................................4-38
Driving Through Deep Standing Water...............4-32
Driving Through Flowing Water.........................4-32
Driving Uphill..................................................4-20
Driving with a Trailer.......................................4-60
Driving..........................................................4-28
At Night.....................................................4-28
City...........................................................4-33
Defensive..................................................... 4-3
Drunken....................................................... 4-4
Environment................................................. 4-3
Freeway.....................................................4-34
Hill and Mountain Roads..............................4-36
In Rain and on Wet Roads...........................4-30
Winter........................................................4-38
E
Electrical System............................................5-84
Add-On Equipment......................................5-84
Fuses and Circuit Breakers...........................5-85
Headlamps.................................................5-84
Power Windows and Other Power Options......5-85
Windshield Wiper Fuses...............................5-85
Electronic Transfer Case..................................2-29
Emergency Release for Opening Tailgate...........2-15Emissions Inspection and Maintenance
Programs...................................................3-32
Engine Compartment Fuse Block......................5-88
Engine Coolant Level Check.............................6-26
Engine Oil Additives........................................5-14
Engine Oil Level Check...................................6-26
Engine..........................................................5-15
Air Cleaner/Filter.........................................5-15
Battery.......................................................5-40
Check and Service Engine Soon Light............3-30
Compartment Overview................................5-10
Coolant Heater............................................2-22
Coolant Temperature Gage...........................3-29
Coolant......................................................5-22
Cooling System Inspection............................6-31
Exhaust.....................................................2-39
Fan Noise..................................................5-34
Oil .............................................................5-11
Overheating................................................5-25
Starting......................................................2-21
Entry Lighting.................................................3-14
Environmental Concerns..................................4-17
Erasing HomeLink
žButtons..............................2-47
Exit Lighting...................................................3-14
Express Down Window....................................2-12
Extender, Safety Belt.......................................1-31
Exterior Lamps...............................................3-11
5

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

Gate Operator and Canadian Programming........2-47
Getting Familiar with Off-Road Driving................4-17
Glove Box.....................................................2-48
GM Mobility Program for Persons with
Disabilities.................................................... 7-6
H
Hazard Warning Flashers................................... 3-3
Head Restraints............................................... 1-7
Headlamp High/Low-Beam Changer.................... 3-6
Headlamps....................................................5-48
Bulb Replacement.......................................5-47
Electrical System.........................................5-84
Halogen Bulbs............................................5-47
One-Piece Front Turn Signal Lamps...............5-50
Two-Piece Front Turn Signal Lamps...............5-50
Heated Seats................................................... 1-5
Heating.........................................................3-18
Highway Hypnosis...........................................4-36
Hill and Mountain Roads..................................4-36
Hitches..........................................................4-59
HomeLink Transmitter, Programming..................2-45
HomeLink
žTransmitter....................................2-44
Hood.............................................................. 5-8
Checking Things Under.................................. 5-8
Release....................................................... 5-9
Horn............................................................... 3-4How to Add Coolant to the Coolant
Recovery Tank............................................5-29
How to Add Coolant to the Radiator..................5-31
How to Add Fluid....................................5-19, 5-21
How to Check and Add Fluid............................5-22
How to Check Lubricant..........................5-45, 5-46
How to Check Power Steering Fluid..................5-35
How to Check................................5-17, 5-20, 5-56
How to Inspect the Engine Air
Cleaner/Filter..............................................5-16
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-14
Hydraulic Clutch System Check........................6-28
Hydraulic Clutch.............................................5-21
Hydroplaning..................................................4-31
I
If No Steam Is Coming From Your Engine..........5-26
If Steam Is Coming From Your Engine...............5-26
If the Light Is Flashing.....................................3-31
If the Light Is On Steady.................................3-31
If You Are Stuck in Sand, Mud, Ice or Snow.......4-42
If You Decide To Pull A Trailer..........................4-55
If You're Caught in a Blizzard...........................4-40
Ignition Positions.............................................2-19
Ignition Transmission Lock Check......................6-29
Infants and Young Children, Restraints...............1-34
In¯ation -- Tire Pressure..................................5-55
7

Inspection......................................................6-32
Brake System.............................................6-32
Engine Cooling System................................6-31
Exhaust System..........................................6-31
Fuel System...............................................6-31
Part C - Periodic Maintenance.......................6-31
Steering, Suspension and Front Drive Axle
Boot and Seal.........................................6-31
Throttle System...........................................6-32
Transfer Case and Front Axle
(Four-Wheel Drive)...................................6-32
Installing a Garage Door Opener.......................2-49
Instrument Panel Fuse Block............................5-86
Instrument Panel.............................................3-22
Cluster.......................................................3-22
Overview..................................................... 3-2
Instrumental Panel Brightness...........................3-14
Interior Lamps................................................3-14
J
Jump Starting.................................................5-41
K
Key Lock Cylinders Service..............................6-28
Key Release Button........................................2-20
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Lamps On Reminder.......................................3-12
Lamps...........................................................3-11
Exterior......................................................3-11
Interior.......................................................3-14
Lap Belt................................................1-22, 1-27
Lap-Shoulder Belt...........................................1-15
LATCH System...............................................1-44
Child Restraints...........................................1-44
Securing a Child Restraint Designed for the
LATCH System........................................1-46
Leaving Your Vehicle With the Engine Running . . . 2-37
Leaving Your Vehicle.......................................2-10
Light.............................................................3-25
Air Bag Readiness.......................................3-25
Anti-Lock Brake System Warning...................3-29
Brake System Warning.................................3-28
Charging System.........................................3-26
Check Gages Warning.................................3-35
8