2003 Oldsmobile Alero check engine light

As in the chart shown previously, SAE 5W-30 is the
only viscosity grade recommended for your vehicle. You
should look for and use only oils which have the API
Starburst symbol and which are also identified as
SAE 5W-30.
If you cannot find such SAE 5W-30 oils,
you can use an SAE 1OW-30 oil which has the API
Starburst symbol,
if it’s going to be 0°F (-18°C)
or above.
Do not use other viscosity grade oils, such as
SAE 1OW-40 or SAE 20W-50 under any conditions.
Nofice: Use only engine oil with the American
Petroleum Institute Certified 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
easier cold starting and better protection for your engine
at extremely low temperatures.
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Engine Oil Additives
Don’t add anything to your oil. The recommended oils
with the starburst symbol are all you will need for
good performance and engine protection.
When to Change Engine Oil
(GM
Oil Life SystemTM)
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
regularly and keep it at the proper level.
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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
:vheneve: the ci! is changed.
5-1 9

When to Check and What to Use
Schedule to determine
how often you should
check the fluid level in your
master cylinder reservoir
and for the proper
fluid. See
Part B: Owner
Checks and Services
on page 6-9 and Part D:
Recommended Fluids
and Lubricants
on
page 6- 15.
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, see
Engine 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 (1 29°C).
@ Protect against rust and corrosion.
@ Help keep the proper engine temperature.
Let the warning lights and gages work as they
should.
5-23

Checking Coolant
2.2L L4 ECOTEC Engine shown,
3400 V6 Engine similar
The coolant surge tank
is located in the engine
compartment on the passenger’s side of the vehicle.
See
Engine Compartment Overview on page 5-12
for more information on location. Turning
the surge tank pressure cap when the
engine and radiator are hot can allow steam
and scalding liquids to blow out and burn
you badly. Never turn the surge tank pressure
cap
- even a little - when the engine and
radiator are hot.
The vehicle must be on
a level surface. When your
mgine is cold, the coolant level should be at the
FULL
;OLD mark, or a little higher.
If the
low coolant light
comes on and stays on,
it
means you’re low on
engine coolant.
See
Low Coolant Warning Light on page 3-31 for more
nformation.
5-25

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 Part Dr
Recommended Fluids and Lubricants on page 6- 15.
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. See
Engine
Compartment Overview on page
5-12 for reservoir
location.
Adding Washer Fluid
Your vehicle has a low
washer fluid telltale that
will come on in the
WASHER
FLU ID
instrument panel cluster
when the washer fluid
is low.
See
Low Washer Fluid Warning Light on page 3-36 for
more information.
5-36

Jump Starting
If your battery has run down, you may want to use
another vehicle and some jumper cables to start your
vehicle. Be sure to follow the steps below to do it safely.
I- Ba..,ries can hi.- - you. ’_ --?y cal. Je c-.lgerous
because:
They contain acid that can burn you.
They contain gas that can explode or
They contain enough electricity to
ignite.
burn you.
If you don’t follow these steps exactly, some
or all of these things can hurt you.
Notice: Ignoring these steps could result in costly
damage to your vehicle that wouldn’t be covered
by your warranty.
Trying to start your vehicle by pushing or pulling
it
won’t work, and it could damage your vehicle.
1. Check the other vehicle. It must have a 12-volt
battery with a negative ground system.
Notice: If the other system isn’t a 12-volt system
with a negative ground, both vehicles can be
damaged.
2. Get the vehicles close enough so the jumper cables
can reach, but be sure the vehicles aren’t touching
each other.
If they are, it could cause a ground
connection you don’t want.
You wouldn’t be able to
start your vehicle, and the bad grounding could
damage the electrical systems.
To avoid the possibility of the vehicles rolling, set
the parking brake firmly on both vehicles involved in
the jump start procedure. Put an automatic
transaxle in PARK (P) or a manual transaxle in
NEUTRAL before setting the parking brake.
Notice: If you leave your radio on, it could be badly
damaged. The repairs wouldn’t be covered by
your warranty.
3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter. Turn
off the radio and all lamps that aren’t
needed. This will avoid sparks and help save
both batteries. And it could save your radio!
4. Open the hoods and locate the batteries. Find the
positive
(+) and negative (-) terminal locations on
each vehicle. See
Engine Compartment Overview
on page
5-12 for more information on location.
5-42

An electric fan can start up even wt.-.r the
engine
is not running and can injure you. Keep
hands, clothing and tools away from any
underhood electric fan.
m rn
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
flashlight if you need more
light.
Be sure the battery has enough water. You
don’t need to add water tsthe ACDelco@
battery installed
in your new vehicle. But if a
battery has filler caps, be sure the right
amount of fluid
is there. If it is low, add water
to take care of that first. If you don’t, explosive
gas could be present.
CAUTION: (Continued) Battery fluid contains acid that can
burn you.
Don’t get
it on you. If you accidentally get it in
your eyes or on your skin, flush the place with
water and get medical help immediately.
I Fans or other moving el,,,ne parts can ..., ure
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
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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.
5-43

Scheduled Maintenance
The services shown in this schedule up to 100,000 miles
(1
66 000 km) should be repeated after 100,000 miles
(1
66 000 km) at the same intervals for the life of
this vehicle. The services shown at 150,000 miles
(240 000 km) should be repeated at the same interval
after 150,000 miles
(240 000 km) for the life of this
vehicle.
See
Part B: Owner Checks and Services on page 6-9
and Part C: Periodic Maintenance Inspections on
page
6- 13.
Footnotes
t The U.S. EfMrmmef%al Prdectim Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
,iia;ii;eiiaiic.e be ,.ec.ui.u'eu'.
+ A good time to check your brakes is during tire
rotation. See Brake System Inspection on page
6-14.
Engine Oil Scheduled Maintenance
Change engine oil and filter as indicated by the GM
Oil Life SystemTM (or every 12 months, whichever
occurs first). Reset the 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
wi!! 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
must be reset. It is also important to check your oil
regularly and keep it at the proper level.
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6-5

A
Accessory Power Outlets .............................. 3-17
Adding Washer Fluid
....................................... 5-36
Additional Program Information
........................... 7-8
Additives, Fuel
................................................. 5-6
Adjusting the Speakers
Air Bag
Air Bag System, Supplemental Restraint Add-On Electrical Equipment
............................ 5-81
(Balance/Fade)
............................ 3-40, 3-46, 3-56
Readiness Light
.......................................... 3-26
System (SRS)
............................................. 1-53
Air CleanedFiIter, Engine
................................. 5-21
All Overseas Locations ...................................... 7-4
Aluminum Wheels
........................................... 5-77
AM ................................................ ....... 3-65
Antenna, XMTM Satellite Radio System
................ 3-67
Anti-lock Brake System (ABS)
............................ 4-6
Anti-Lock Brake, System Warning Light
.............. 3-29
Care of Safety Belts
.................................... 5-75
Chemical Paint Spotting
............................... 5-78
Antenna, Backglass
......................................... 3-66
Appearance Care
............................................ 5-72
Cleaning the Inside of Your Vehicle
................ 5-72
Cleaning the Outside of Your Vehicle
.............. 5-75
Finish Damage
............................................ 5-77
G!.! Vehicle CarelAppearmce Materials .......... 5-78
Sheet Metal Damage ................................... 5-77
Underbody Maintenance
............................... 5-78 Appearance Care (cont.)
Weatherstrips
........... ........................ 5-75
Ashtrays
........................................................ 3-18
Audio System(s)
......................................... 3-38
Backglass Antenna
...................................... 3-66
Care of Your Cassette Tape Player
................ 3-65
Care of Your CD Player
............................... 3-66
Care of Your CDs
........................................ 3-66
Chime Level Adjustment
............................... 3-67
DAB Radio Antenna System
.......................... 3-67
Radio with Cassette and CD
......................... 3-52
Radio with CD
.................................... 3-39, 3-42
Setting the Time for Radios with Radio
Data Systems (RDS)
................................ 3-38
Setting the Time for Radios without Radio
Data Systems (RDS)
................................ 3-38
Theft-Deterrent Feature
................................ 3-64
Understanding Radio Reception
..................... 3-65
KhATM %?P!!ifP Radln Antenna . Sysf9t-p .............. 1-87
Automatic Headlamp System ............................ 3-14
Automatic Transaxle
........................................ 2-18
Fluid
.......................................................... 5-22
Operation
................................................... 2-22
Automatic Transaxle Check
.............................. 6-10
Automatic Transaxle Shift Lock Control
System Check
............................................. 6-11
Audio Systems