2002 BUICK PARK AVENUE sensor

2-40
Windshield Wipers
You control the windshield wipers by turning the band
marked WIPER.
For a single wiping cycle, turn the band to MIST. Hold
it there until the wipers start, then let go. The wipers will
stop after one cycle. If you want more cycles, hold the
band on MIST longer.
Use the delay position to set the wiper speed for a long or
short delay between wipes. This can be very useful in light
rain or snow. Turn the band to choose the delay time. The
closer to LO, the shorter the delay between wipes.
For steady wiping at low speed, turn the band away
from you to the LO position. For high
-speed wiping,
turn the band further, to HI. To stop the wipers, turn the
band to OFF.
Remember that damaged wiper blades may prevent you
from seeing well enough to drive safely. To avoid damage,
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 your blades become damaged, get
new blades or blade inserts.
Heavy snow or ice can overload your wiper motor.
A circuit breaker will stop the motor until it cools.
Clear away snow or ice to prevent an overload.
Rainsense
II Wipers (If Equipped)
The moisture sensor is mounted on the interior of the
windshield below the rearview mirror and is used to
automatically operate the wipers. This system operates
by monitoring the amount of moisture build
-up on the
windshield. Wipes occur as needed to clear the
windshield depending on the driving conditions and the
sensitivity setting. In light rain or snow, fewer wipes
will occur. In heavy rain or snow, wipes will occur more
frequently. The system will operate in the delay, low
speed and high speed modes. If the system is left on for
long periods of time, occasional wipes may occur
without any moisture on the windshield. This is normal
and indicates that the Rainsense system is active.
The Rainsense system is activated by turning the wiper
control band to one of the five sensitivity levels within
the delay area. The delay position closest to OFF/MIST
is the lowest sensitivity setting, level one. This allows
more rain or snow to collect on the windshield between
wipes. You can increase the sensitivity of the system and
the frequency of wipes by turning the wiper control
band away from you to the higher sensitivity levels.
The highest sensitivity setting, level five, is closest to
the LO position. A single wipe will occur each time you
turn the wiper control band to a higher sensitivity level
to indicate that the sensitivity level has been increased.

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The windshield wipers also remain in a ªhigh parkº
position (the wipers are stopped on the windshield and
are not in the normal park position), even when the
ignition is turned off.
NOTICE:
Turn the wiper band to OFF to avoid wiper
damage when going through an automatic
car wash.
The MIST and wash cycles operate as normal and are
not affected by the moisture
-sensing function. The
system can be overridden at any time by manually
turning the wiper band 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
At the top of the multifunction lever there is a paddle
with the word PUSH on it. For ªprogrammedº
operation, press and release the paddle. 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. For ªdemandº operation, press and hold
the paddle for at least two seconds. Release the paddle
when you have enough fluid and the wipers will either
stop or return to your original wiping speed.
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.
If your vehicle is equipped with a DIC, a WINDSHIELD
WASHER FLUID LOW message will appear on the
instrument panel cluster when the vehicle is low on
washer fluid.

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Daytime Running Lamps (DRL)
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. Fully
functional daytime running lamps are required on all
vehicles first sold in Canada.
A light sensor on top of the instrument panel monitors
the exterior light level for the operation of DRL and
Twilight Sentinel

, so be sure it isn't covered.
The DRL system will make your high
-beam headlamps
come on at reduced brightness in daylight when the
following conditions are met:

The ignition is on,

The exterior lamps control is off, and

The transaxle is not in PARK (P).
When DRL are on, only your high
-beam headlamps will
be on. The parking lamps, taillamps, sidemarker and
other lamps won't be on. Your instrument panel won't
be lit up either.When it's dark enough outside, your high
-beam
headlamps will change to low
-beam headlamps at full
brightness. The other lamps that turn on with your
headlamps will also turn on. When it's bright enough
outside, the regular lamps will turn off, and your
high
-beam headlamps change to the reduced
brightness of DRL.
To idle your vehicle with the DRL off, shift the
transaxle into PARK (P). The DRL will stay off until
you shift out of PARK (P).
To turn off all exterior lighting at night when you are
parked, turn off the exterior lamp control and slide the
Twilight Sentinel control all the way to the left. When
released, the control will return to the Twilight Sentinel
minimum delay position and the lights will turn off.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Cornering Lamps
The cornering lamps come on when the headlamps
or parking lamps are on and you signal a turn with
the multifunction lever. They provide more light
for cornering.

2-47 Twilight Sentinel


Twilight Sentinel turns
your headlamps on and
off by sensing how dark
it is outside.
To operate this feature, slide the control to any position
to vary the lamp timeout.
You can set the delay time from only a few seconds to
three minutes. If you move the control all the way to
MAX, your lamps will remain on for three minutes after
you turn off your engine. If you move the control almost
all the way in the other direction, so it's just on, the lamps
will go off quickly when you turn off your engine. Sliding
the control to OFF, turns off the Twilight Sentinel feature.
Light Sensor
Your Twilight Sentinel and DRL work with the light
sensor on top of the instrument panel. Don't cover it up.
If you do, it will sense ªdarkº and the headlamps will
come on.
Interior Lamps
Instrument Panel Brightness Control
Instrument panel light brightness can be adjusted
by turning the exterior lamps control counterclockwise
and clockwise.
Courtesy Lamps
When any door is opened, several lamps go on.
They make it easy for you to enter and leave your
vehicle. You can also turn these lamps on by turning the
exterior lamps control clockwise all the way past the
normal stop.
Illuminated Entry System
When you open either front door or press the button
with the unlock symbol on the remote keyless entry
transmitter, the lamps inside your vehicle will turn on.
These lamps will turn off after about 40 seconds. These
lamps will also turn off if you start the engine or activate
the power door locks.

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Delayed Entry Lighting
When you open the door, the interior lamps will come
on. When you close the door with the ignition off, the
interior lamps will stay on for 25 seconds or until the
ignition is turned to an on position. Locking the doors
with the power door lock switch will override the
delayed entry lighting feature and the lamps will
turn off right away.
Using the remote keyless entry transmitter to lock the
door will not cancel delayed lighting.
Theater Dimming
This feature allows for a three to five-second fade out
of the courtesy lamps instead of immediate turn off.
Delayed Exit Lighting
With this feature, the interior lamps will come on for
25 seconds after you remove the key from the ignition.
This will give you time to find the door handle or
lock switches.
Parade Dimming
This feature prohibits the dimming of your instrument
panel displays during daylight while your headlamps are
on. This feature operates with the light sensor for the
Twilight Sentinel and is fully automatic. When the light
sensor reads darkness outside, you will be able to dim
your instrument panel displays once again.
Perimeter Lighting
When the button with the unlock symbol on the remote
keyless entry transmitter is pressed, the DRL, parking
lamps and back
-up lamps will come on if it is dark
enough outside.
This feature will only be activated when the security
feedback feature is programmed to be in Modes 1, 3 or 5
on the transmitter. Modes 0, 2 and 4 do not respond with
exterior lights flashing when unlocking the vehicle so
perimeter lighting will not be active.
This feature can be programmed on or off for
each transmitter.

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Safety Belt Reminder Light
When the key is turned to RUN, a chime will come
on for about eight seconds to remind people to fasten
their safety belts, unless the driver's safety belt is
already buckled.
The safety belt light will
also come on and stay on
for about 20 seconds, then
it will flash for about
55 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. 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.
This light will come on
when you start your vehicle,
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
vehicle or comes on when you are driving, your air bag
system may not work properly. Have your vehicle
serviced right away.

2-99 Care of the HUD
Clean the inside of the windshield as necessary to
remove any dirt or film that reduces the sharpness or
clarity of the HUD image.
To clean the HUD lens, spray household glass cleaner
on a soft, clean cloth. Gently wipe and dry the HUD
lens. Do not spray cleaner directly on the lens to avoid
cleaner leaking inside the unit.
If You Can't See The HUD Image When the
Ignition is On
If the ignition is on and you can't see the HUD image,
check to see if:

The headlamps are on.

Something is covering the HUD unit.

The HUD dimmer control is adjusted properly.

The HUD image is adjusted to the proper height.

A fuse is blown. See ªFuses and Circuit Breakersº in
the Index.
Keep in mind that your windshield is part of the HUD
system. If you ever have to have your windshield
replaced, be sure to get one that is designed for HUD or
your HUD image may look blurred or out of focus.
Ultrasonic Rear Parking Assist
(URPA) (Option)
Ultrasonic rear parking assist can help you to determine
how close an object is to your rear bumper within a
given area, making parking easier.
The URPA display is located inside the vehicle, above
the rear window. It has three color
-coded lights that can
be seen through the rearview mirror.
How the System Works
Ultrasonic rear parking assist comes on automatically
when the shift lever is moved into REVERSE (R) and
the vehicle speed is less than 3 mph (5 km/h). When the
system comes on, the three lights on the display will
illuminate to let you know that the system is working.
URPA senses how close your vehicle is to an object. The
distance is determined by the four rear sensors located
on the bumper. When shifting into REVERSE (R) and
an object is detected, one of the following will occur:

At 5 ft. (1.5 m) an amber light will come on.

At 40 in. (1.0 m) two amber lights will come on.

At 20 in. (0.5 m) two amber lights and a red light
will come on and a continuous chime will sound.

At 1 ft. (0.3 m) the chime will still be going
continuously and all three lights will flash.

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A chime will sound the first time an object is detected,
if the object is between 20 inches (0.5 m) and 5 feet
(1.5 m) away.
URPA can detect objects 3 inches (7.6 cm) and wider,
and at least 10 inches (2.5 cm) tall, but cannot detect
objects that are above trunk level. In order for the rear
sensors to recognize an object, it must be within
operating range.
If the URPA system is not functioning properly, the
display will flash red, indicating that there is a problem.
The light will also flash red when you are driving if a
trailer is attached to your vehicle, or if you have a
bicycle or an object hanging out of your trunk. The
light will continue to flash until the trailer or the object
is removed and your vehicle is driven forward at least
15 mph (25 km/h). It may also flash red if the ultrasonic
sensors are not kept clean. For cleaning instructions, see
ªCleaning Your Vehicleº in the Index.So be sure to keep your rear bumper free of mud,
dirt, snow, ice and slush or the system may not work
properly. If after cleaning the rear bumper and then
driving at least 15 mph (25 km/h), the display continues
to flash red, see your dealer. It may also flash red if your
vehicle is moving in REVERSE (R) at a speed greater
than 3 mph (5 km/h). Other conditions that may affect
system performance include things like, the vibrations
from a jackhammer or the compression of airbrakes
on a very large truck.
As always, drivers should use care when backing up a
vehicle. Always look behind you, being sure to check
for other vehicles, obstructions and blind spots.