1999 OLDSMOBILE ALERO check engine light

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2-66 Change Oil Light
The CHANGE OIL light
should come on briefly as a
bulb check when you start
the engine. If the light
doesn't come on, have
it serviced.
If the CHANGE OIL light comes on and stays on after
you start the engine, have the oil changed.
For additional information, see ªEngine Oil, When to
Changeº in the Index. To reset the Oil Life Monitor, see
ªEngine Oil Life Monitorº in the Index.
Security Light
This light will come on
when you turn the key to
ON and will stay on until
the vehicle starts.
If you're driving and the security light comes on and
remains on, your Passlock

system is not working
properly. Your vehicle is not protected by Passlock and
you should see your dealer.
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4-7
And, of course, actual stopping distances vary greatly
with the surface of the road (whether it's pavement or
gravel); the condition of the road (wet, dry, icy); tire
tread; the condition of your brakes; the weight of the
vehicle and the amount of brake force applied.
Avoid needless heavy braking. Some people drive in
spurts
-- heavy acceleration followed by heavy
braking
-- rather than keeping pace with traffic.
This is a mistake. Your brakes may not have time to
cool between hard stops. Your brakes will wear out
much faster if you do a lot of heavy braking. If you
keep pace with the traffic and allow realistic following
distances, you will eliminate a lot of unnecessary
braking. That means better braking and longer
brake life.
If your engine ever stops while you're driving, brake
normally but don't pump your brakes. If you do, the
pedal may get harder to push down. If your engine
stops, you will still have some power brake assist. But
you will use it when you brake. Once the power assist is
used up, it may take longer to stop and the brake pedal
will be harder to push.
Anti-Lock Brakes (ABS)
Your vehicle has anti-lock brakes (ABS). ABS is an
advanced electronic braking system that will help
prevent a braking skid.
When you start your engine, or when you begin to drive
away, your anti
-lock brake system will check itself.
You may hear a momentary motor or clicking noise
while this test is going on, and you may even notice that
your brake pedal moves or pulses a little. This is normal.
United States Canada
If there's a problem with the anti
-lock brake system, this
warning light will stay on. See ªAnti
-Lock Brake
System Warning Lightº in the Index.
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5-5
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 flashlight if
you need more light.
Be sure the battery has enough water. You don't
need to add water to the ACDelco Freedom

battery installed in every new GM 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.
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.
6. 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 (+) and negative (
-) will go to a heavy,
unpainted metal engine part.
Don't connect positive (+) to negative (
-) or you'll
get a short that would damage the battery and maybe
other parts, too.
CAUTION:
Fans or other moving engine parts can injure you
badly. Keep your hands away from moving parts
once the engine is running.
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6-7
NOTICE:
If you need a new cap, be sure to get the right
type. Your dealer can get one for you. If you get
the wrong type, it may not fit properly. This may
cause your malfunction indicator lamp to light
and your fuel tank and emissions system may be
damaged. See ªMalfunction Indicator Lampº in
the Index.
Filling a Portable Fuel Container
CAUTION:
Never fill a portable fuel container while it is in
your vehicle. Static electricity discharge from the
container can ignite the gasoline vapor. You can
be badly burned and your vehicle damaged if this
occurs. To help avoid injury to you and others:
CAUTION: (Continued)
CAUTION: (Continued)

Dispense gasoline only into
approved containers.

Do not fill a container while it is inside a
vehicle, in a vehicle's trunk, pickup bed or
on any surface other than the ground.

Bring the fill nozzle in contact with the
inside of the fill opening before operating
the nozzle. Contact should be maintained
until the filling is complete.

Don't smoke while pumping gasoline.
Checking Things Under the Hood
CAUTION:
An electric fan under the hood can start up and
injure you even when the engine is not running.
Keep hands, clothing and tools away from any
underhood electric fan.
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6-11
Engine Oil
3400 V6 Engine Only
If the LOW OIL light on the instrument panel comes on,
it means you need to check your engine oil level right
away. For more information, see ªLOW OIL Lightº in
the Index. You should check your engine oil level
regularly; this is an added reminder.
It's a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil must
be warm and the vehicle must be on level ground.
2.4L L4 Engine
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6-37
If the anti-lock brake system warning light comes on,
the tire pressure monitor system may not be working.
See your dealer for service. (Also, see ªAnti
-Lock
Brake System Warning Lightº in the Index).
When the LOW TIRE PRESSURE light comes on, you
should stop as soon as you can and check all your tires
for damage. (If a tire is flat, see ªIf a Tire Goes Flatº in
the Index.) Also check the tire pressure in all four tires
as soon as you can. See ªInflation
- Tire Pressureº in
the Index.
The light will come on and stay on until you turn off the
ignition or press the RESET button.
Don't reset the tire pressure monitor system without first
correcting the cause of the problem and checking and
adjusting the pressure in all four tires. If you reset the
system when the tire pressures are incorrect, the system
will not work properly and may not alert you when a
tire is low.
Any time you adjust a tire's pressure, rotate your tires,
or have one or more tires repaired or replaced, you'll
need to reset (calibrate) the tire pressure monitor system.
You'll also need to reset the system whenever you buy
new tires and whenever the vehicle's battery has
been disconnected.To reset (calibrate) the system, turn the ignition switch
to ON (engine not running). The RESET button is
located inside of the driver's side instrument fuse panel.
Press and release the RESET button.
The CHANGE OIL light will begin to flash. Press and
release the RESET button again. The CHANGE OIL
light will go off, and the LOW TIRE PRESSURE light
will start flashing. When the LOW TIRE PRESSURE
light is flashing, press and hold the RESET button until
the chime sounds. If the LOW TIRE PRESSURE light
doesn't go off then, see your dealer for service.
The system completes the calibration process
during driving.
The system normally takes 15 to 20 minutes of driving
in each of three speed ranges to ªlearnº tire pressures.
The speed ranges are 15 to 40 mph (25 to 65 km/h),
40 to 65 mph (65 to 105 km/h) and above 65 mph
(105 km/h). When learning is complete, the system will
alert you after 2
-8 minutes if a tire is 12 psi (83 kPa)
different from the other three tires. Detection thresholds
may be higher and detection times may be longer on
rough roads, curves and at high speeds. The system is
not capable of detection at speeds greater than 75 mph
(120 km/h).
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Scheduled Maintenance
7-5
The services shown in this schedule up to 100,000 miles
(166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at 150,000 miles (240 000 km) should be performed at
the same interval after 150,000 miles (240 000 km).
See ªOwner Checks and Servicesº and ªPeriodic
Maintenance Inspectionsº following.
Footnotes

The U.S. Environmental Protection 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 maintenance
be recorded.* Your vehicle has an Engine Oil Life Monitor. This
monitor will show you when to change the engine oil
and filter
-- usually between 3,000 miles (5 000 km)
and 7,500 miles (12 500 km) since your last oil change.
Under severe conditions, the indicator may come on
before 3,000 miles (5 000 km). Never drive your vehicle
more than 7,500 miles (12 500 km) or 12 months
without an oil and filter change.
The system won't detect dust in the oil. So if you drive
in a dusty area, be sure to change your oil and filter
every 3,000 miles (5 000 km) or sooner if the Change
Oil light comes on. Remember to reset the Oil Life
Monitor whenever the oil is changed. For more
information, see ªChange Oil Lightº in the Index.
+ A good time to check your brakes is during tire
rotation. See ªBrake System Inspectionº under ªPeriodic
Maintenance Inspectionsº in Part C of this schedule.
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9-2
Brake (Continued)
System Warning Light 2-56, 6-25 . . . . . . . . . . . . . . . . . . . .
Trailer 4-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transaxle Shift Interlock 2-29, 7-15 . . . . . . . . . . . . . . . . . .
Transaxle Shift Interlock Check 7-15 . . . . . . . . . . . . . . . . . .
Wear 6-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brakes, Anti-Lock 2-57, 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking 4-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking in Emergencies 4-11 . . . . . . . . . . . . . . . . . . . . . . . . . .
Break-In, New Vehicle 2-15 . . . . . . . . . . . . . . . . . . . . . . . . . .
BTSI 2-29, 7-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BTSI Check 7-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb Replacement 6-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Back-Up Lamp 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHMSL 6-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Turn Signal Lamps 6-32 . . . . . . . . . . . . . . . . . . . . . . .
Headlamps 6-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Turn Signal Lamp 6-33 . . . . . . . . . . . . . . . . . . . . . . . .
Stoplamp 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taillamp 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capacities and Specifications 6-59 . . . . . . . . . . . . . . . . . . . .
Carbon Monoxide 2-12, 2-30, 4-29 . . . . . . . . . . . . . . . . . . . .
Care of Your Compact Disc Player 3-24 . . . . . . . . . . . . . . . . .
Cassette Deck Service 7-13 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cassette Tape Player 3-9, 3-13 . . . . . . . . . . . . . . . . . . . . . . . .
Cassette Tape Player Care 3-23 . . . . . . . . . . . . . . . . . . . . . . . .
CD Player 3-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CD Player Theft-Deterrent Feature 3-19 . . . . . . . . . . . . . . . . .
Center Console Storage Area 2-46 . . . . . . . . . . . . . . . . . . . . . .
Center High-Mounted Stoplamp Bulb Replacement 6-32 . . . .
Center Rear Passenger Position 1-35 . . . . . . . . . . . . . . . . . . . .
Certification Label 4-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chains, Safety 4
-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chains, Tire 6-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Change Oil Light 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing a Flat Tire 5-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System Indicator Light 2-55 . . . . . . . . . . . . . . . . . . .
Check Engine Light 2-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Your Restraint Systems 1-54 . . . . . . . . . . . . . . . . . .
Chemical Paint Spotting 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . .
Child Restraints 1-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securing in a Rear Outside Seat Position 1-45 . . . . . . . . . . .
Securing in the Center Rear Seat Position 1-47 . . . . . . . . . .
Securing in the Right Front Seat Position 1-48 . . . . . . . . . .
Top Strap 1-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Where to Put 1-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Breakers and Fuses 6-53 . . . . . . . . . . . . . . . . . . . . . . .
Cleaner, Air 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aluminum Wheels 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fabric 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glass 6-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside of Your Vehicle 6-44 . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Panel 6-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leather 6-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside of Your Vehicle 6-48 . . . . . . . . . . . . . . . . . . . . . . . .
Special Fabric Problems 6-45 . . . . . . . . . . . . . . . . . . . . . . . .
Stains 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tires 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vinyl 6-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield and Wiper Blades 6-47 . . . . . . . . . . . . . . . . . . .
Climate Control System 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clock, Setting the 3-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Comfort Controls 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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