2000 BUICK LESABRE tow

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2-37
If a bulb is burned out, replace it to help avoid an
accident. If the arrows don't go on at all when you
signal a turn, check the fuse (see ªFuses and Circuit
Breakersº in the Index) and for burned
-out bulbs.
Turn Signal On Chime
If your turn signal is left on for more than 0.8 miles
(1.3 km), a chime will sound at each flash of the turn
signal. To turn off the chime, move the turn signal lever
to the off position.
Headlamp High/Low-Beam Changer
To change the headlamps from low beam to high beam
or high beam to low beam, pull the turn signal lever
toward you and release it.
When the high beams are
on, this light located on the
instrument panel will
also be on.If your vehicle is equipped with the Head
-Up Display
(HUD), an arrow will also appear in the display area to
indicate the high beams are on (See ªHead
-Up Display
(HUD)º in Index for more information).
Flash-To-Pass
This feature lets you use the high-beam headlamps to
signal the driver in front of you that you want to pass.
It works even if your headlamps are off.
Pull the turn signal lever toward you briefly to
flash
-to-pass.
If the headlamps are off or on low beam, the high
-beam
headlamps will turn on. They'll stay on as long as you
hold the lever toward you and the high
-beam indicator
on the instrument panel cluster will come on. Release
the lever to turn the high
-beam headlamps off.

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When it is dark enough outside, your low-beam
headlamps will come on. The other lamps that turn on
with your headlamps will also turn on. When it is bright
enough outside, the regular lamps will go off, and your
high
-beam headlamps change to the reduced brightness
of DRL.
To turn off all exterior lighting at night when you are
parked, turn off the headlamps and move the Twilight
Sentinel control all the way toward OFF. The exterior
lamps will turn back on automatically when you move
the transaxle out of PARK (P).
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Cornering Lamps (If Equipped)
The cornering lamps are designed to turn on when
you signal a turn. This will provide more lighting
when cornering.
Twilight Sentinel

Twilight Sentinel turns your
lamps on and off by sensing
how dark it is outside.
To operate it, leave the lamp switch off.
If you move the control all the way to MAX, your
headlamps will remain on for about three minutes after
you turn off your engine. As you move the control toward
OFF, the headlamps will turn off more quickly when you
move your key from RUN. You can change this delay
time from only a few seconds to three minutes.
The exterior lamps can be completely shut off while the
vehicle is in PARK (P) by sliding the Twilight Sentinel
control all the way toward OFF, and release. To turn the
exterior lamps back on, slide the control all the way
toward OFF again, and release; or, shift out of PARK (P).

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Mirror Operation
To turn on the automatic dimming feature, press AUTO.
To turn off automatic dimming, press OFF. The green
indicator light will be illuminated when this feature
is active.
Time Delay
The automatic mirror has a time delay feature which
prevents unnecessary switching from the night back to
the day position. This delay prevents rapid changing of
the mirror as you drive under lights and through traffic.
Cleaning the Photocells
Use a cotton swab and glass cleaner to clean the
photocells when necessary.
Electrochromic Day/Night Rearview Mirror
with Compass (If Equipped)
Your vehicle may have an electrochromic inside
rearview mirror with a compass.
When set in the MIRROR position, this mirror
automatically changes to reduce glare from headlamps
behind you. A time delay feature prevents rapid
changing from the day to night positions while driving
under lights and through traffic.
The mirror also includes an eight
-point compass display in
the upper right corner of the mirror face. When on, the
compass automatically calibrates as the vehicle is driven.
When cleaning the mirror, use a paper towel or similar
material dampened with glass cleaner. Do not spray glass
cleaner directly on the mirror as that may cause the liquid
cleaner to enter the mirror housing. Use a cotton swab and
glass cleaner to clean the photocells when necessary.

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2-57 Dual Sun Visors
Each sun visor has two parts, so that both the windshield
and door glass can be shaded at the same time. To use
the dual sun visors, flip the first visor down and turn
toward the window. Then, flip the second visor down
toward the windshield.
OnStar
System (Option)
Your vehicle may have the optional OnStar
Communications service. The following services are
available 24 hours a day from an OnStar representative:

Roadside Service with Location

Emergency Services Button

Remote Door Unlock

Theft Detection/Notification and
Stolen
-Vehicle Tracking

Automatic Notification of Air Bag Deployment

Concierge/Customer Conveniences Services
NOTE: Installation of aftermarket equipment is
possible, however, the features described above will not
be compatible with any portable phone other than the
OnStar cellular phone available from your dealer.
For more information, contact your dealer.
Sunroof (Option)
If you have this feature, the switch is located between
the sun visors.
The sunroof switch can be operated in four directions to
control sunroof movement. The switch will only work
when the ignition is on or when the retained accessory
power is active.
The sunroof has both manual and express features for
opening the glass panel and sunshade.
Press and hold the switch rearward to the first position
to open the glass panel and sunshade. The sunshade can
also be opened by hand. To close the glass panel, press
and hold the switch forward. As the glass panel closes, it
will open slightly towards the vent position to provide a
better seal. The sunshade can only be closed by hand.
Press and release the switch rearward to the second
position to express open the glass panel. It will stop in a
partially open position. The glass panel may be fully
opened by pressing the switch rearward again. When the
glass panel is express opening, pressing the switch in
any direction will stop it. Note that if you press and hold
the switch in the express open position for more than
one and a half seconds, the express open operation will
be overridden and the sunroof will operate manually.

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2-69 Battery System Warning Light
When you turn the key to
RUN, this light will turn on
briefly, to show that your
generator and battery
charging systems
are working.
If the light stays on, a chime will sound indicating you
need service and you should take your vehicle to the
dealer at once. To save your battery until you get there,
turn off all accessories and set your climate control
system to OFF.
Brake System Warning Light
Your vehicle's hydraulic brake system is divided into
two parts. If one part isn't working, the other part can
still work and stop you. For good braking, though, you
need both parts working well.
If the warning light comes on, there is a brake problem.
Have your brake system inspected right away.
This light should come on
when you turn the key to
RUN. If it doesn't come on
then, have it fixed so it will
be ready to warn you if
there's a problem.
If the light and chime come on while you are driving,
pull off the road and stop carefully. You may notice that
the pedal is harder to push. Or, the pedal may go closer
to the floor. It may take longer to stop. If the light is still
on, have the vehicle towed for service. (See ªTowing
Your Vehicleº in the Index.)
CAUTION:
Your brake system may not be working properly
if the brake system warning light is on. Driving
with the brake system warning light on can lead
to an accident. If the light is still on after you've
pulled off the road and stopped carefully, have
the vehicle towed for service.

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This light should come on, as a check to show you it is
working, when the ignition is on and the engine is not
running. If the light doesn't come on, have it repaired.
This light will also come on during a malfunction in one
of two ways:

Light Flashing
-- A misfire condition has been
detected. A misfire increases vehicle emissions and
may damage the emission control system on your
vehicle. Dealer or qualified service center diagnosis
and service may be required.

Light On Steady
-- An emission control system
malfunction has been detected on your vehicle.
Dealer or qualified service center diagnosis and
service may be required.
If the Light Is Flashing
The following may prevent more serious damage to
your vehicle:

Reducing vehicle speed.

Avoiding hard accelerations.

Avoiding steep uphill grades.

If you are towing a trailer, reduce the amount of
cargo being hauled as soon as it is possible.If the light stops flashing and remains on steady,
see ªIf the Light Is On Steadyº following.
If the light continues to flash, when it is safe to do so,
stop the vehicle. Find a safe place to park your vehicle.
Turn the key off, wait at least 10 seconds and restart the
engine. If the light remains on steady, see ªIf the Light
Is On Steadyº following. If the light is still flashing,
follow the previous steps, and drive the vehicle to your
dealer or qualified service center for service.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully install
the cap. See ªFilling Your Tankº in the Index. The
diagnostic system can determine if the fuel cap has been
left off or improperly installed. A loose or missing fuel
cap will allow fuel to evaporate into the atmosphere.
A few driving trips with the cap properly installed
should turn the light off.

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VENT: This setting directs outside air through the
middle instrument panel outlets. The air conditioning
compressor is not working when VENT is selected. If
you select VENT while in FRONT defrost, the VENT
light will flash three times to let you know this is not
allowed. This is to prevent fogging.
HTR: This button directs air out of the heater outlets.
Most of the air will come from the floor outlets while
some air will flow through the windshield and side
window outlets. The air conditioning compressor is not
working when HTR is selected.
BLEND: When BLEND is selected, the airflow will
be split between the windshield and the floor outlets.
The air conditioning compressor will be operating.
FRONT: This setting directs most of the airflow
toward the windshield.OFF: The ventilation system always allows fresh air to
flow through your vehicle when it is moving. The system
will try to keep the air at a previously chosen temperature.
When the system is off, the blower fan is also off.
MAX: This setting directs airflow through the middle
instrument panel outlets. The amount of outside air
entering your vehicle is limited with this setting. The air
conditioning compressor is on in this mode.
NORM: This setting cools the outside air entering your
vehicle and directs it through the middle instrument
panel outlets. The air conditioning compressor is on in
this mode.
BI
-LEV: This setting directs warm air to the floor and
cooler air to the middle instrument panel outlets. The air
conditioning compressor is on in this mode.

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3-4 Dual Automatic Comfortemp
Climate Control (If Equipped)
If your vehicle is equipped with the Dual Automatic
Comfortemp Climate Control system, the following
information tells you how it works.You will hear a beep each time a button is pushed and a
light on the button will indicate which function is active.
The lights are on all buttons except TEMP, FAN and
AIR FLOW. The display will show fan speed, comfort
level setting and airflow direction for a few seconds
whenever AUTO is selected, and then it will display the
outside temperature. The outside temperature reading is
most accurate when the vehicle is moving. During stops,
the display shows the previous temperature for best
accuracy and system control.
If the display is flashing after the climate control system
is started, there is a problem with the system and you
should see your dealer for service.
Sun and temperature sensors automatically adjust the
air temperature, the airflow direction and the fan speed
to maintain your comfort setting. The system may
supply cooler air to the side of the vehicle toward the
sun. Be careful not to put anything over the sensor on
top of the dash.