2002 BUICK LESABRE engine

2-45
When the DRL are on, only your high-beam headlamps
will be on. The parking lamps, taillamps, sidemarker
and other lamps won't be on.
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 lever 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 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.
Twilight Sentinel

Twilight Sentinel turns your headlamps on and off by
sensing how dark it is outside.
The lever for this feature is
located to the left of the
steering column.
To operate it, leave the exterior lamp button off.
If you slide the lever all the way to MAX, your
headlamps will remain on for about three minutes after
you turn off your engine. As you slide the lever 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.

2-50 Battery Load Management
The battery load management feature is designed to
monitor the vehicle's electrical load and determine when
the battery is in a heavy discharge condition. During
times of high electrical loading, the engine may idle at a
higher rpm setting than normal to make sure the battery
charges. High electrical loads may occur when several
of the following are on: headlamps, high beams, rear
window defogger, fan at high speed, heated seats (if
equipped) and engine cooling fans.
If your vehicle's battery remains in a heavy discharge
condition for a long period of time, the fan, rear
defogger, heated seats and heated mirrors will be
disabled and the DIC will display BATTERY SAVER
ACTIVE. This can happen either under long periods of
idling or low speed driving with high electrical loading,
or in the event of a charging system fault.
Mirrors
Day/Night Manual Rearview Mirror
When you are sitting in a comfortable driving position,
adjust the mirror so you can see clearly behind your
vehicle. The day
-night adjustment allows you to adjust the
mirror to avoid glare from the headlamps behind you.
Electrochromic Day/Night Rearview Mirror
(If Equipped)
Your vehicle may have an automatic electrochromic
day/night rearview mirror. Your vehicle's mirror may
also contain OnStar

controls.
This is the on/off button for mirrors equipped with
OnStar controls.
When this feature is turned on, the mirror automatically
changes to reduce glare from headlamps behind you.
A photocell on the mirror senses when it is becoming
dark outside. Another photocell built into the mirror face
senses when headlamps are behind you.
At night, when the glare is too high, the mirror will
gradually darken to reduce glare (this change may take a
few seconds). The mirror will return to its clear daytime
state when the glare is reduced.
Mirror Operation
To turn on the automatic dimming feature, press AUTO
(or the on/off button for mirrors equipped with OnStar
controls). To turn off automatic dimming, press OFF
(or the on/off button for mirrors equipped with OnStar
controls). The indicator light will be illuminated when
this feature is active.

2-56
To use a lighter, push the center all the way in and let
it go. When it is ready, the center will pop back out by
itself. Pull out the entire unit to use it.
NOTICE:
Don't hold a cigarette lighter in with your hand
while it is heating. If you do, it won't be able to
back away from the heating element when it's
ready. That can make it overheat, damaging the
lighter and the heating element.
The cigarette lighter will only operate when the ignition
key is in RUN and for 10 minutes after turning the
ignition off. If you would like the lighter to operate
regardless of ignition position, and for extended periods
of time, see ªEngine Compartment Fuse Blockº in the
Index or see your dealer.
Sun Visors
Illuminated Visor Vanity Mirrors
When you open the cover to either the passenger's or
driver's visor vanity mirror, the lamps will turn on. The
brightness of the lamp can be adjusted by sliding the
switch up or down.
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 it
toward the window. Then, flip the second visor down
toward the windshield.
Auxiliary Power Outlets
The auxiliary power outlets can be used to plug in
electrical equipment such as a cellular telephone or
CB radio.
Your vehicle may have up to three power outlets
depending on the type of front seat you have. If your
vehicle has front bucket seats with a center console, you
will find two outlets inside the rear storage compartment.
(An extra power outlet can be found in the ashtray.)

2-57
Your vehicle may have a small cap that must be pulled
down to access the auxiliary power outlet. If it does,
when not using the outlet be sure to cover it with the
protective cap.
The auxiliary power outlets will only operate when the
ignition key is in RUN and for 10 minutes after turning
the ignition off. If you would like the outlets to operate
regardless of ignition position, and for extended periods
of time, see ªEngine Compartment Fuse Blockº in the
Index or contact your dealer.
NOTICE:
When using auxiliary power outlets:

Maximum load of any electrical equipment
should not exceed 15 amps.

Be sure to turn off any electrical equipment
when not in use. Leaving electrical
equipment on for extended periods can
drain the battery.
Certain electrical accessories may not be compatible to the
auxiliary power outlets and could result in blown vehicle or
adapter fuses. If you experience a problem see your dealer
for additional information on the auxiliary power outlets.
NOTICE:
Adding some electrical equipment to your vehicle
can damage it or keep other things from working
as they should. This wouldn't be covered by your
warranty. Check with your dealer before adding
electrical equipment, and never use anything that
exceeds the amperage rating.
When adding electrical equipment, be sure to follow
the proper installation instructions included with
the equipment.
NOTICE:
Power outlets are designed for accessory plugs
only. Do not hang any type of accessory or
accessory bracket from the plug. Improper
use of the power outlet can cause damage not
covered by your warranty.

2-59
The light will be red in the event of an OnStar system
malfunction. If this occurs press the OnStar Services
button to attempt to contact an advisor. If the connection
is made, the advisor will assist you with steps to take to
make sure that the system is functioning properly. If you
cannot contact the advisor, take your vehicle to your
dealership as soon as possible for assistance.
Cellular Antenna
The cellular antenna on the outside of your vehicle is
critical to effective communications using the OnStar
system. Optimum cellular reception can be obtained
when the mast is straight up and down.
OnStar Services
The following services are available within OnStar
service plans. Your vehicle comes with a specific
one
-year service plan that allows use of some or all
of the following services.
Automatic Notification of Air Bag Deployment: If an
air bag deploys, a priority emergency signal is
automatically sent to the center. An advisor will locate
your vehicle's position, try to contact you and assist you in
the situation. If the center is unable to contact you, an
emergency service provider will be contacted.Stolen Vehicle Tracking: Call the center at
1
-888-4-ONSTAR (1-888-466-7827) to report your
vehicle stolen. The system can then attempt to locate
and track your vehicle and the advisor will assist the
proper authorities.
Roadside Assistance with Location: For vehicle
breakdowns, press the OnStar Services button. An
advisor will contact the appropriate help.
Remote Diagnostics: If an instrument panel light comes
on, press the OnStar Services button. An advisor can
perform a check of the engine on
-board computer, and
recommend what action needs to be taken.
OnStar MED
-NET: Med-Net can store your personal
medical history and provide it to emergency personnel if
necessary. (Requires activation and additional fee.)
Accident Assist: An advisor can provide step
-by-step
guidance following an accident.
Remote Door Unlock: To contact the center, call
1
-888-4-ONSTAR. You will be required to provide
your security information. An advisor will send a
command to your vehicle to unlock itself. The advisor
can delay unlocking your vehicle. Remote Door Unlock
is disabled 48 hours after the vehicle is parked to
maintain the battery charge.

2-63 Programming the HomeLink Transmitter
Do not use the HomeLink Transmitter with any garage
door opener that does not have the ªstop and reverseº
safety feature. This includes any garage door opener
model manufactured before April 1, 1982.
Be sure that people and objects are clear of the garage
door you are programming.
It is recommended that a new battery be installed in
your hand
-held transmitter for quicker and more
accurate transmission of the radio frequency.
Your vehicle's engine should be turned off while
programming the transmitter. Follow these steps to
program up to three channels:
1. Decide which one of the three channels (one of the
three HomeLink buttons) you want to program.
2. Press and hold the desired button on HomeLink
through Step 3.3. When the HomeLink indicator light begins to blink
slowly (this may take up to 30 seconds), hold the
hand
-held transmitter about 1 to 3 inches (3 to 8 cm)
from HomeLink and then press and hold the transmit
button on the hand
-held transmitter. Continue to hold
both buttons until the indicator light on HomeLink
begins to flash rapidly (this may take up to
90 seconds).
If you have trouble programming HomeLink, make sure
that you have followed the directions exactly as
described and that the battery in the hand
-held
transmitter is not weak. If you still cannot program it,
move the hand
-held transmitter to the left or right or
forward or backward or flip it upside down. HomeLink
may not work with older garage door openers that do
not meet current Federal Consumer Safety Standards.
If you cannot program the transmitter after repeated
attempts, refer to ªTraining a Garage Door Opener with
Rolling Codesº later in this section or contact the
manufacturer of HomeLink at 1
-800-355-3515,
or on the internet at www.homelink.com.
Be sure to keep the original hand
-held transmitter in
case you need to erase and reprogram HomeLink.

2-70 Speedometer and Odometer
Your speedometer lets you see your speed in both miles
per hour (mph) and kilometers per hour (km/h). Your
odometer shows how far your vehicle has been driven,
in either miles or kilometers. Press The ENG/MET
button which is located to the left of the speedometer
to change from mph to km/h.
Your vehicle has a tamper resistant odometer.
You may wonder what happens if your vehicle needs
a new odometer installed. If the new one can be set to
the mileage total of the old odometer, then it must be.
But if it can't, then it's set at zero and a label must be
put on the driver's door to show the old mileage reading
when the new odometer was installed.
Trip Odometer
A trip odometer can tell you how far you have driven
since you last set it to zero. To reset it, push the TRIP
RESET button. If your vehicle is equipped with a DIC,
see ªDriver Information Center (DIC)º in the Index for
information on resetting the trip odometer.
Tachometer (If Equipped)
The tachometer tells you
how fast the engine is
running. It displays engine
speed in thousands of
revolutions per minute (rpm).
NOTICE:
Do not operate the engine with the tachometer in
the shaded area or engine damage may occur.

2-71
Warning Lights, Gages and Indicators
This part describes the warning lights and gages that
may be on your vehicle. The pictures will help you
locate them.
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause an
expensive repair or replacement. Paying attention to
your warning lights and gages could also save you or
others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle's functions. As you
will see in the details on the next few pages, some
warning lights come on briefly when you start the
engine just to let you know they're working. If you are
familiar with this section, you should not be alarmed
when this happens.
Gages can indicate when there may be or is a problem
with one of your vehicle's functions. Often gages and
warning lights work together to let you know when
there's a problem with your vehicle.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 may also have a DIC that works along with
the warning lights and gages. See ªDriver Information
Center (DIC)º in the Index.
The volume of your vehicle's warning chimes can
be adjusted. For information see ªChime Level
Adjustmentº in the Index.
Safety Belt Reminder Light
When the key is turned to RUN 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 20 seconds, then
flash for 55 seconds.
If the driver's belt is already
buckled, neither the chime
nor the light will come on.