1999 CADILLAC SEVILLE sensor

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Your vehicle has a feature that will automatically unlock
the doors and turn the interior lamps on when the frontal
air bags inflate (if battery power is available). You can
lock the doors again and turn the interior lamps off by
using the door lock and interior lamp controls.
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 an
air bag inflates, 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 frontal air bag system. The module records
information about the readiness of the system, when
the sensors are activated and driver's safety belt
usage at deployment. Some modules also record
speed, engine rpm, brake and throttle data.

Let only qualified technicians work on your
air bag systems. Improper service can mean that
an 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, or the air bag
covering on the driver's and right front
passenger's seatback, the bag may not work
properly. You may have to replace the air bag
module in the steering wheel, both the air bag
module and the instrument panel for the right
front passenger's air bag, or both the air bag
module and seatback for the driver's and right
front passenger's side impact air bag. Do not
open or break the air bag coverings.
Servicing Your Air Bag-Equipped Vehicle
Air bags affect how your vehicle should be serviced.
There are parts of the air bag systems in several places
around your vehicle. Your dealer and the Seville Service
Manual have information about servicing your vehicle
and the air bag systems. To purchase a service manual,
see ªService and Owner Publicationsº in the Index.

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NOTICE:
If your vehicle seems to start up rather slowly, or
if it doesn't seem to shift gears as you accelerate,
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 OVERDRIVE (
)
for higher speeds.
THIRD (3): This position is also used for normal
driving, however, it offers more power and lower fuel
economy than OVERDRIVE (
).
Here are examples for using THIRD (3) instead of
OVERDRIVE (
):

When driving on hilly, winding roads.

When going down a steep hill.SECOND (2): This position gives you more power. 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.
NOTICE:
Don't shift into SECOND (2) unless you are going
slower than 65 mph (105 km/h), or you can
damage your engine.
FIRST (1): This position gives you even more power
than SECOND (2). You can use it on very steep hills, or
in deep snow or mud.
Note: If the traction control switch is off, your vehicle
will not go into FIRST (1) gear and the vehicle will
accelerate from stop more slowly. This can help in deep
snow or mud conditions. When the traction control is
turned off, a message will be lit on the Driver
Information Center (DIC).

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INT (DELAY): Move the lever up to the INT position,
then turn the INT ADJ band, which is located on the
lever, to adjust the delay time. The higher you turn the
INT ADJ band, the more frequent the wipers
will operate.
OFF: Lower the lever to its resting position (OFF) to
turn off the wipers.
MIST: Pull the lever down once and release it for a
single wipe cycle. For more cycles, hold the lever down
in the MIST position longer.
To wash the windshield, press the button located at the
tip of the lever.
Be sure to clear ice and snow from the wiper blades
before using them. If they're frozen to the windshield,
carefully loosen or thaw them. If the blades do become
damaged, get new blades or blade inserts.
Heavy snow or ice can overload the wiper motor. A
circuit breaker will stop the motor until it cools. Clear
away snow or ice to prevent an overload.Rainsense
Wipers (If Equipped)
The moisture sensor is mounted on the passenger's
interior side of the windshield behind the rearview
mirror and is used to automatically operate the wipers
by monitoring the amount of moisture that is on
the windshield.
The Rainsense system can be activated by moving the
wiper stalk up to the INT position and turning the INT
ADJ band to one of five sensitivity settings. The bottom
INT ADJ position is the lowest sensitivity setting. This
allows more water to collect on the windshield between
wipes. Turning the INT ADJ band to the other INT ADJ
settings increases the sensitivity of the system and the
frequency of wipes. A single wipe will occur each time
you turn the INT ADJ band to a higher sensitivity
setting. An initial wipe occurs when you turn the
ignition on as a reminder that Rainsense is active. The
windshield wipers also remain in a ªhigh parkº position,
even when the ignition is turned off.
The Rainsense wipers operate in a delay mode as well as
a continuous low or high speed depending on the
amount of moisture and the sensitivity setting. The
MIST and ªwashº cycles operate as normal and are not
affected by the Rainsense function.

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NOTICE:
The wipers must be turned off when going
through a car wash to avoid damage.
It is important to note that the Rainsense wiping feature
(INT ADJ) can be overridden at any time by manually
changing the wiper control to LO or HI speed.
NOTICE:
Do not place stickers or other items on the
exterior glass surface directly in front of the
moisture sensor. Doing this could cause the
moisture sensor to malfunction.
Windshield Washer
The windshield washer has both a ªdemandº mode and a
ªprogrammedº mode, depending on the amount of
windshield washer fluid you need.
CAUTION:
In freezing weather, don't use your washer until
the windshield is warmed. Otherwise the washer
fluid can form ice on the windshield, blocking
your vision.
To spray washer fluid on the windshield in the
programmed mode, press and release the button on the
tip of the lever. The washer will provide a measured
amount of fluid to the windshield and the wiper will
either stop or return to your original wiping speed. To
spray washer fluid on the windshield in the demand
mode, press and hold the button until you have enough
fluid, and the wipers will either stop or return to your
original wiping speed.
CHECK WASHER FLUID will be displayed on the DIC
when the washer fluid reaches a low level.

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If you move the lever all the way to the right, the lamps
will remain on for approximately three minutes after the
ignition has been turned to OFF or ACC. If you move
the lever so it is just on, the lamps will go off quickly
when you turn the ignition out of ON. You can adjust
the delay time from only a few seconds to three minutes.
If it's dark enough outside and Twilight Sentinel is
turned off, a HEADLAMPS SUGGESTED message
will display on the Driver's Information Center (DIC).
This message informs the driver that turning on the
exterior lamps is recommended (it's become dark
enough outside to require the headlamps and/or other
exterior lamps). Turning on the Twilight Sentinel, the
headlamps or the fog lamps will remove the
HEADLAMPS SUGGESTED message.Light Sensor
The light sensor for the Daytime Running Lamps (DRL)
and the Twilight Sentinel is located on the driver's side
of the front defogger grille. If you cover the sensor, it
will read ªdarkº and the lamps will come on.

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With the control at AUTO and the front door opened,
the overhead console light, front hush panel lamps and
rear footwell lamps in the door will automatically come
on. When the rear door is opened, all the front door
lighting and rear overhead lamps will come on.
When the control is at ON, the courtesy lamps are
turned on. At OFF, the lamps are turned off. (All
automatic interior lighting functions are terminated.)
When the interior lamp control is at OFF, only the
driver's door controls and ignition switch backlighting
functions will operate.
Illuminated Entry
The illuminated entry system turns on the courtesy
lamps and the backlighting to the driver's door switches
and to the ignition key when a door is opened or if you
press the Remote Keyless Entry (RKE) transmitter
unlock button. The illuminated entry system works with
the light sensor and it must be dark outside in order for
the courtesy lamps or backlighting to turn on. The
courtesy lamps turn off approximately 25 seconds after
the last door is closed or after the ignition key is turned
to RUN or if the RKE transmitter lock button is pressed.
The courtesy lamps turn off approximately 40 seconds
after the doors are unlocked with the RKE transmitter if
no door is opened.
Parade Dimming
This feature prohibits the dimming of the instrument
panel lights during daylight while the parking lamps are
on. This feature works with the light sensor and is fully
automatic. When the light sensor reads darkness outside,
the instrument panel lights can be adjusted by following
the steps under ªInstrument Panel Intensity/Brightness
Control.º Backlighting to the instrument panel will also
turn on.
Reading Lamps
The reading lamps are located in the roof. These lamps
and the interior courtesy lamps come on when any door
is opened and it is dark outside. The rear lamps come on
when a rear door is opened. Press the button near the
lamps to turn them on and off.
If the reading lamps are left on, they automatically shut
off 10 minutes after the ignition has been turned off.

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When one of the warning lights comes on and stays on
when you are driving, or when one of the gages shows
there may be a problem, check the section that tells you
what to do about it. Please follow this manual's advice.
Waiting to do repairs can be costly
-- and even
dangerous. So please get to know your warning lights
and gages. They're a big help.
Your vehicle also has a Driver Information Center that
works along with the warning lights and gages. See
ªDriver Information Centerº in the Index.
Safety Belt Reminder Light
When the key is turned to ON or START, a chime will
come on for about eight seconds to remind people to
fasten their safety belts.
The safety belt light will
also come on and stay on
for about 70 seconds. If the
driver's belt is already
buckled, neither the chime
nor the light will come on.
Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows AIR BAG (United States) or the air
bag symbol (Canada). The system checks the air bag's
electrical system for malfunctions. The light tells you if
there is an electrical problem. The system check
includes the air bag sensors, the air bag modules, the
wiring and the crash sensing and diagnostic module. For
more information on the air bag system, see ªAir Bagº
in the Index.
United States Canada
This light will come on when you start your engine, and
it will flash for a few seconds. Then the light should go
out. This means the system is ready.
If the air bag readiness light stays on after you start the
engine or comes on when you are driving, your air bag
system may not work properly. Have your vehicle
serviced right away.

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BATTERY VOLTAGE HIGH - 8: This message
shows that the electrical charging system is
overcharging (more than 16 volts). To avoid being
stranded, have the electrical system checked by your
dealership. You can reduce the charging overload by
using the accessories. Turn on the lamps and radio, set
the climate control on AUTO and the fan speed on HI,
and turn the rear window defogger on. You can monitor
battery voltage on the DIC by pressing the INFO button.
The normal range is 11.5 to 15.5 volts when the engine
is running.
BATTERY VOLTAGE LOW
- 6: This message will
appear when the electrical system is charging less than 9
volts or if the battery has been drained. If this message
appears immediately after starting, it is possible that the
generator can still recharge the battery. The battery should
recharge while driving but may take a few hours to do so.
Consider using an auxiliary charger (be sure to follow the
manufacturer's instructions) to boost the battery after
returning home or to a final destination. If this message
appears while driving or after starting your vehicle and
stays on, have it checked immediately to determine the
cause of this problem. To help the generator recharge the
battery quickly, you can reduce the load on the electrical
system by turning off the accessories. You can monitor
battery voltage on the DIC by pressing the INFO button.
The normal range is 11.5 to 15.5 volts.CHANGE BRAKE PADS
- 125: This message is used
to notify you that the brake pads may have worn down.
A sensor is connected to the brake pads and is triggered
when they wear to a certain point. Have the front and
rear brakes serviced by your dealer as soon as possible.
CHANGE ENGINE OIL
- 82: This means that the life
of the engine oil has expired and it should be changed
within 200 miles. See ªEngine Oilº and ªFilter
Recommendationsº in the Maintenance Schedule
booklet. After an oil change, the Oil Life Indicator must
be reset. See ªOil Life Indicator, How to Resetº in
the Index.
CHANGE TRANS FLUID
- 47: This message will
appear when it is time to replace the transaxle fluid. See
the Maintenance Schedule booklet for the proper fluid
and change intervals.
CHECK BRAKE FLUID
- 37: This message will
display if the ignition is in ON to inform the driver that
the brake fluid level is low. Have the brake system
serviced by a technician as soon as possible. See ªBrake
System Warning Lightº in the Index.
CHECK COOLANT LEVEL
- 2: This message will
appear when there is a low level of engine coolant. Have
the cooling system serviced by a technician as soon
as possible.