sensor OLDSMOBILE ALERO 1999 Owners Manual

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1-28
In many crashes severe enough to inflate an air bag,
windshields are broken by vehicle deformation.
Additional windshield breakage may also occur from the
right front passenger air bag.

Air bags are designed to inflate only once. After they
inflate, you'll need some new parts for your air bag
system. If you don't get them, the air bag system
won't be there to help protect you in another crash.
A new system will include air bag modules and
possibly other parts. The service manual for your
vehicle covers the need to replace other parts.

Your vehicle is equipped with a crash sensing and
diagnostic module, which records information about
the air bag system. The module records information
about the readiness of the system, when the system
commands air bag inflation and driver's safety belt
usage at deployment.

Let only qualified technicians work on your air bag
system. Improper service can mean that your air bag
system won't work properly. See your dealer
for service.
NOTICE:
If you damage the covering for the driver's or the
right front passenger's air bag, the bag may not
work properly. You may have to replace the air
bag module in the steering wheel or both the air
bag module and the instrument panel for the
right front passenger's air bag. Do not open or
break the air bag coverings.
If your vehicle ever gets into a lot of water -- such as
water up to the carpeting or higher
-- or if water enters
your vehicle and soaks the carpet, the air bag controller
can be soaked and ruined. If this ever happens, and then
you start your vehicle, the damage could make the air bags
inflate, even if there's no crash. You would have to replace
the air bags as well as the sensors and related parts. If your
vehicle is ever in a flood, or if it's exposed to water that
soaks the carpet, you can avoid needless repair costs by
turning off the vehicle immediately and disconnecting the
battery cables. Don't let anyone start the vehicle under any
circumstances. See your dealer for service.
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2-24
AUTOMATIC OVERDRIVE (D): This position is for
normal driving. If you need more power for passing,
and you're:

Going less than 35 mph (55 km/h), push your
accelerator pedal about halfway down.

Going about 35 mph (55 km/h) or more, push the
accelerator all the way down. You'll shift down to
the next gear and have more power.
NOTICE:
If your vehicle seems to start up rather slowly, or
if it seems not to shift gears as you go faster,
something may be wrong with a transaxle system
sensor. If you drive very far that way, your
vehicle can be damaged. So, if this happens, have
your vehicle serviced right away. Until then, you
can use SECOND (2) when you are driving less
than 35 mph (55 km/h) and AUTOMATIC
OVERDRIVE (D) for higher speeds.
THIRD (3): This position is also used for normal
driving, however, it offers more power and lower fuel
economy than AUTOMATIC OVERDRIVE (D). Here
are some times you might choose THIRD (3) instead of
AUTOMATIC OVERDRIVE (D):

When driving on hilly, winding roads.

When towing a trailer, so there is less shifting
between gears.

When going down a steep hill.
SECOND (2): This position gives you more power but
lower fuel economy. You can use SECOND (2) on hills.
It can help control your speed as you go down steep
mountain roads, but then you would also want to use
your brakes off and on.
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2-40
Turn the turn signal lever end cap up two positions to
turn on your:

Headlamps

Parking Lamps

Sidemarker Lamps

Taillamps

License Plate Lamps

Instrument Panel Lights
Turn the switch to OFF to turn all of the lamps off.
Lamps On Reminder
If you turn off the ignition and open the driver's
door while leaving the lamps on, you will hear a
warning chime.
Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
DRL can be helpful in many different driving
conditions, but they can be especially helpful in the
short periods after dawn and before sunset.The DRL system will make your high
-beam headlamps
come on at a reduced brightness when:

the ignition is on,

the headlamp switch is in OFF or you have turned on
your parking lamps,

the light sensor detects daytime light,

the parking brake is released and

the shift lever is not in PARK (P).
When the DRL system is on, the taillamps, sidemarker
lamps, park lamps and instrument panel lights will not
be illuminated.
The DRL system will remain off any time your vehicle
is in PARK (P) or the parking brake is engaged and the
vehicle speed is less than 3 mph (1.9 km/h).
As with any vehicle, you should turn on the regular
headlamp system when you need it.
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2-41 Automatic Light Control (ALC)
When it is dark enough outside, your Automatic Light
Control (ALC) will turn on your headlamps along with
other lamps such as the taillamps, sidemarker lamps,
park lamps and the instrument panel lights. The radio
lights will also be dim.
Your vehicle is equipped with a light sensor on the top
of the instrument panel under the defroster grill, so be
sure it is not covered. This will cause the ALC system to
be on whenever the ignition is on.
The ALC system may also come on when driving
through a parking garage, heavy overcast weather or a
tunnel. This is normal.
There is a delay in the transition between the daytime
and nighttime operation of the DRL and the ALC
systems so that driving under bridges or bright overhead
street lights does not affect the system. The DRL and
ALC systems will only be affected when the light sensor
sees a change in lighting lasting longer than this delay.
To idle your vehicle with the ALC system off, set the
parking brake while the ignition is off. Then start the
vehicle. The ALC system will stay off until you release
the parking brake.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Delayed Headlamps
The delayed headlamps feature will continue to
illuminate the headlamps for 20 seconds after the key is
turned to OFF.
To turn off the delayed headlamps feature, turn the turn
signal/multifunction lever up one position and then back
to OFF.
Fog Lamps (If Equipped)
The button for your fog lamps is located on the
instrument panel, to the left of the steering wheel, beside
the instrument panel intensity control.
When using the fog lamps, the ignition must be on as
well as the parking lamps or the low
-beam headlamps.
Push the button to turn the fog lamps on. An indicator
light on the button will glow when the fog lamps are on.
Push the button again to turn the fog lamps off.
The fog lamps will turn off whenever the high
-beam
headlamps are turned on. When the high beams are
turned off, the fog lamps will come on again.
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6-58
Fuse Usage
Mini
-Fuses
41) Ignition System
42) Back
-Up Lamps, Brake Transaxle
Shift Interlock
43) Horn
44) Powertrain Control Module
45) Parking Lamps
46) Rear Defog, Daytime Running
Lamps, Climate Control System
47) Canister Vent Valve, Exhaust
Oxygen Sensors
48) Fuel Pump, Injectors
49) Generator
50) Right
-Hand Headlamp
51) Left
-Hand Headlamp
52) Cooling Fan
53) HVAC Blower (Climate Control)
54) Not Used
55) Not Used
56) Fuse Puller for Mini Fuses
57) Not Used
Replacement Bulbs
Outside Lamps (Rear) Bulb
Back
-Up Lamps 921. . . . . . . . . . . . . . . . . . . . . . . . . .
Center High
-Mounted Stop Lamp 912. . . . . . . . . . . .
Turn Signal Lamps 3157. . . . . . . . . . . . . . . . . . . . . . .
Stop/Taillamps 3057. . . . . . . . . . . . . . . . . . . . . . . . . .
Outside Lamps (Front) Bulb
Halogen Headlamps
-Low Beam 9006. . . . . . . . . . . .
Halogen Headlamps
-High Beam 9005. . . . . . . . . . . .
Parking/Turn Signal Lamps 3157NA. . . . . . . . . . . . . .
Side Marker Lamps 194. . . . . . . . . . . . . . . . . . . . . . .
Inside Lamps Bulb
Dome (Base) 561. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dome (Uplevel) 212
-2 . . . . . . . . . . . . . . . . . . . . . . . . .
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