2004 Oldsmobile Alero check engine light

Notice:Use only engine oil identied as meeting
GM Standard GM6094M and showing the American
Petroleum Institute Certied For Gasoline Engines
starburst symbol. Failure to use the recommended
oil can result in engine damage not covered by
your warranty.
GM Goodwrench
®oil meets all the requirements for
your vehicle.
If you are in an area of extreme cold, where the
temperature falls below−20°F (−29°C), it is
recommended that you use either an SAE 5W-30
synthetic oil or an SAE 0W-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
Engine Oil Additives
Do not add anything to your oil. The recommended oils
with the starburst symbol that meet GM Standard
GM6094M are all you will need for good performance
and engine protection.
When to Change Engine Oil
(GM Oil Life System)
Your vehicle has a computer system that lets you know
when to change the engine oil and filter. This is based on
engine revolutions and engine temperature, and not on
mileage. Based on driving conditions, the mileage at
which an oil change will be indicated can vary
considerably. For the oil life system to work properly, you
must reset the system every time the oil is changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE OIL light will come on. Change
your oil as soon as possible within the next two
times you stop for fuel. It is possible that, if you are
driving under the best conditions, the oil life system may
not indicate that an oil change is necessary for over a
year. However, your engine oil and filter must be
changed at least once a year and at this time the system
must be reset. Your dealer has GM-trained service
people who will perform this work using genuine GM
parts and reset the system. It is also important to check
your oil regularly and keep it at the proper level.
If the system is ever reset accidentally, you must change
your oil at 3,000 miles (5 000 km) since your last oil
change. Remember to reset the oil life system whenever
the oil is changed.
5-18

Engine Air Cleaner/Filter
SeeEngine Compartment Overview on page 5-12for
more information on location.
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/filter at every oil change and
replace at the first oil change after
25,000 miles (40 000 km).
How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/filter, remove the filter from
the vehicle and lightly shake filter to release loose dust
and dirt. If the filter remains “caked” with dirt, a new
filter is required.
To inspect or replace the engine air cleaner/filter, do the
following:
1. Remove the screws that hold the cover on.
2. Lift off the cover.
3. Check or replace the engine air cleaner/filter.
4. Put the cover back on tightly.
Refer to the Maintenance Schedule to determine when
to replace the air filter.
SeeScheduled Maintenance on page 6-4. 2.2L L4 ECOTEC™ Engine shown, 3400 V6 Engine
similar
5-20

How to Check and Add Fluid
You do not need to check the fluid level unless you
suspect a clutch problem. To check the fluid level, take
the cap off. If the fluid level reaches the top of the
reservoir, the fluid level is correct. It isn’t a good idea to
top off your clutch fluid. Adding fluid won’t correct a
leak. A fluid loss in this system could indicate a problem.
Have the system inspected and repaired.
Engine Coolant
The cooling system in your vehicle is filled with
DEX-COOL®engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add
only DEX-COOL
®extended 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, seeEngine Overheating on
page 5-26.A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
•Give freezing protection down to−34°F (−37°C).
•Give boiling protection up to 265°F (129°C).
•Protect against rust and corrosion.
•Help keep the proper engine temperature.
•Let the warning lights and gages work as they
should.
Notice:Using coolant other than DEX-COOL
®may
cause premature engine, heater core or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at 30,000 miles (50 000 km)
or 24 months, whichever occurs rst. Any repairs
would not be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your vehicle.
5-23

How to Check Power Steering Fluid
Turn the key off, let the engine compartment cool down,
wipe the cap and the top of the reservoir clean, then
unscrew the cap and wipe the dipstick with a clean rag.
Replace the cap and completely tighten it. Then remove
the cap again and look at the fluid level on the dipstick.
The level should be at the FULL COLD mark. If
necessary, add only enough fluid to bring the level up to
the mark.
What to Use
To determine what kind of fluid to use, see
Recommended Fluids and Lubricants on page 6-12.
Always use the proper fluid. Failure to use the proper
fluid can cause leaks and damage hoses and seals.
Windshield Washer Fluid
What to Use
When you need windshield washer fluid, be sure to read
the manufacturer’s instructions before use. If you will
be operating your vehicle in an area where the
temperature may fall below freezing, use a fluid that has
sufficient protection against freezing. SeeEngine
Compartment Overview on page 5-12for reservoir
location.
Adding Washer Fluid
Your vehicle has a low
washer fluid telltale that
will come on in the
instrument panel cluster
when the washer fluid
is low.
SeeLow Washer Fluid Warning Light on page 3-37for
more information.
5-36

{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 battery has enough water. You do
not need to add water to the ACDelco
®battery
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 do not, explosive gas could
be present.
Battery uid contains acid that can burn you.
Do not 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 with the dead
battery 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.
5-44

Owner Checks and Services on page 6-8tells you what
should be checked, when to check it and what you can
easily do to help keep your vehicle in good condition.
The proper replacement parts, fluids and lubricants to
use are listed inRecommended Fluids and Lubricants
on page 6-12andNormal Maintenance Replacement
Parts on page 6-13. When your vehicle is serviced,
make sure these are used. All parts should be replaced
and all necessary repairs done before you or anyone
else drives the vehicle. We recommend the use of
genuine GM parts.
Scheduled Maintenance
When the CHANGE OIL light comes on, it means that
service is required for your vehicle. Have your vehicle
serviced as soon as possible within the next 600 miles
(1 000 km). It is possible that, if you are driving under the
best conditions, the engine oil life system may not
indicate that vehicle service is necessary for over a year.
However, your engine oil and filter must be changed at
least once a year and at this time the system must be
reset. Your GM Goodwrench dealer has GM-trained
service technicians who will perform this work using
genuine GM parts and reset the system.If the engine oil life system is ever reset accidentally,
you must service your vehicle within 3,000 miles
(5 000 km) since your last service. Remember to reset
the oil life system whenever the oil is changed. See
Engine Oil on page 5-15for information on the Engine
Oil Life System and resetting the system.
When the CHANGE OIL light appears, certain services,
checks and inspections are required. Required services
are described in the following for “Maintenance I” and
“MaintenanceII.” Generally, it is recommended that your
first service be MaintenanceI, your second service be
MaintenanceIIand that you alternate MaintenanceIand
MaintenanceIIthereafter. However, in some cases,
Maintenance II may be required more often.
MaintenanceI— Use MaintenanceIif the CHANGE
OIL light comes on within ten months since vehicle was
purchased or Maintenance II was performed.
MaintenanceII— Use MaintenanceIIif the previous
service performed was MaintenanceI. Always use
MaintenanceIIwhenever the light comes on ten months
or more since the last service or if the light has not
come on at all for one year.
6-4

Brake
Parking......................................................2-27
System Warning Light..................................3-28
Brake Adjustment............................................5-41
Brake Fluid....................................................5-38
Brake Pedal Travel.........................................5-41
Brake Wear...................................................5-40
Brakes..........................................................5-38
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-16
Bulb Replacement...........................................5-50
Center High-Mounted Stoplamp (CHMSL)........5-51
Front Turn Signal and Parking Lamps.............5-51
Halogen Bulbs............................................5-50
Headlamp Aiming........................................5-48
Headlamps.................................................5-50
Replacement Bulbs......................................5-52
Taillamps, Turn Signal, and Stoplamps............5-52
Buying New Tires...........................................5-65
C
California Fuel.................................................. 5-5
Canada – Customer Assistance.......................... 7-5
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Capacities and Specifications............................5-95
Carbon Monoxide...................4-26, 4-39, 2-12, 2-31Care of
Safety Belts................................................5-84
Your Cassette Tape Player............................3-67
Your CD Player...........................................3-68
Your CDs ...................................................3-68
Cassette Tape Messages.................................3-64
Cassette Tape Player Service............................. 6-9
CD Messages................................3-44, 3-54, 3-66
Center Console Storage Area...........................2-35
Center High-Mounted Stoplamp (CHMSL)...........5-51
Center Rear Passenger Position, Safety Belts.....1-27
Chains, Tires..................................................5-69
Charging System Light....................................3-27
Check
Engine Light...............................................3-32
Checking Coolant............................................5-25
Checking Engine Oil........................................5-15
Checking Things Under the Hood....................... 5-9
Checking Your Restraint Systems......................1-60
Chemical Paint Spotting...................................5-87
Child Restraints
Child Restraint Systems...............................1-38
Infants and Young Children...........................1-34
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-43
Older Children.............................................1-32
Securing a Child Restraint Designed for the
LATCH System........................................1-46
Securing a Child Restraint in a Center Rear
Seat Position...........................................1-49
2

Customizing the Automatic Door Locks for
Automatic Transaxle Vehicles.......................... 2-9
Customizing the Automatic Door Locks for
Manual Transaxle Vehicles............................. 2-9
D
Daytime Running Lamps (DRL).........................3-14
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-21
Delayed Headlamps........................................3-16
Delayed Locking............................................... 2-8
Dinghy Towing................................................4-32
Doing Your Own Service Work........................... 5-3
Dolly Towing..................................................4-33
Dome Lamp...................................................3-17
Door
Delayed Locking........................................... 2-8
Locks.......................................................... 2-7
Power Door Locks......................................... 2-8
Programmable Automatic Door Locks............... 2-9
Rear Door Security Locks.............................2-10
Driver
Position, Safety Belt.....................................1-15
Six-Way Power Seat...................................... 1-3
Driving
At Night.....................................................4-16
City...........................................................4-21
Defensive..................................................... 4-2Driving (cont.)
Drunken....................................................... 4-2
Freeway.....................................................4-22
Hill and Mountain Roads..............................4-24
In Rain and on Wet Roads...........................4-18
Winter........................................................4-26
Driving On Grades..........................................4-44
Driving on Snow or Ice....................................4-27
Driving Through Deep Standing Water...............4-19
Driving Through Flowing Water.........................4-20
Driving with a Trailer.......................................4-43
E
Easy Entry Seat............................................... 1-6
Electrical System
Add-On Equipment......................................5-89
Fuses and Circuit Breakers...........................5-90
Power Windows and Other Power Options......5-90
Windshield Wiper Fuses...............................5-90
Emergency Trunk Release Handle.....................2-13
Emissions Inspection and Maintenance
Programs...................................................3-35
Engine
Air Cleaner/Filter.........................................5-20
Battery.......................................................5-41
Change Engine Oil Light...............................3-36
Check and Service Engine Soon Light............3-32
Coolant......................................................5-23
4