light BUICK LESABRE 2004 Service Manual

Notice:Leaving electrical equipment on for
extended periods will drain the battery. Always turn
off electrical equipment when not in use and do
not plug in equipment that exceeds the maximum
amperage rating.
Certain electrical accessories may not be compatible to
the accessory power outlets and could result in blown
vehicle or adapter fuses. If you experience a problem
see your dealer for additional information on the
accessory power outlets.
Notice:Adding any electrical equipment to your
vehicle may damage it or keep other components
from working as they should. The repairs would not
be covered by your warranty. Check with your
dealer before adding electrical equipment.
When adding electrical equipment, be sure to follow the
proper installation instructions included with the
equipment.
Notice:Improper use of the power outlet can cause
damage not covered by your warranty. Do not
hang any type of accessory or accessory bracket
from the plug because the power outlets are
designed for accessory power plugs only.Ashtrays and Cigarette Lighter
Pull down the front center tray to reveal the front
ashtray, cigarette lighter and accessory power outlet.
The front center and rear ashtrays may be removed for
cleaning. Hold the sides of the ashtray and then pull
the ashtray up and out.
Notice:If you put papers or other ammable items
in the ashtray, hot cigarettes or other smoking
materials could ignite them and possibly damage
your vehicle. Never put ammable items in the
ashtray.
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:Holding a cigarette lighter in while it is
heating will not allow the lighter to back away from
the heating element when it is hot. Damage from
overheating may occur to the lighter or heating
element, or a fuse could be blown. Do not hold a
cigarette lighter in while it is heating.
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 “Engine Compartment Fuse Block” under
Fuses and Circuit Breakers on page 5-92or see
your dealer.
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Climate Controls
Climate Control System
With this system you can control the heating, cooling
and ventilation for your vehicle.
TEMPERATURE:This lever is used to adjust the
temperature of the air coming through the system.
Moving the lever between COOL and WARM will change
the temperature of the air coming through your outlets.
9FAN:Move this lever to select the speed of
the fan. Moving the lever between LOW and HIGH will
decrease or increase the fan speed. The fan will be
off when the system is off.To change the current mode, select one of the following:
RECIRC (Recirculation):This mode keeps outside
air from coming in the vehicle. It can be used to prevent
outside air and odors from entering your vehicle or to
help heat or cool the air inside your vehicle more quickly.
Press this button to turn the recirculation mode on or
off. When the button is pressed, an indicator light
will come on. You may not use RECIRC with FRONT
defrost or BLEND.
VENT:This mode directs air to the instrument panel
outlets.
HTR (Heater):This mode directs most of the air to the
oor outlets with some air directed to the outboard
outlets (for the side windows) and some air directed to
the windshield.
BLEND:This mode splits the airow between the
windshield and the oor outlets. The air conditioning
compressor will be operating.
OFF:The ventilation system always allows fresh air to
ow 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 (Maximum Air Conditioning):This mode directs
airow through the instrument panel outlets. The
amount of outside air entering your vehicle is limited.
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Also in this mode, the RECIRC function is activated to
create the maximum cooling effect in the vehicle. If
RECIRC was activated before selecting MAX, the light
in the RECIRC button will go off. If RECIRC is
selected after MAX, the light in the RECIRC button will
not come on.
NORM (Normal Air Conditioning):This mode cools
the outside air entering your vehicle and directs it
through the instrument panel outlets.
BI-LEV (Bi-Level Air Conditioning):This mode directs
about half of the air to the instrument panel outlets,
and then directs most of the remaining air to the oor
outlets. Some air may be directed toward the windshield.
Cooler air is directed to the upper outlets and warmer
air to the oor outlets. The air conditioning compressor is
on in this mode.
On hot days, open the windows to let hot inside air
escape; then close them. This helps to reduce the time
it takes for your vehicle to cool down. It also helps
the system to operate more efficiently.
For quick cool down on hot days, do the following:
1. Select the vent mode.
2. Select the recirculation mode.
3. Select MAX.
4. Select the coolest temperature.
5. Select the highest fan speed.Using these settings together for long periods of time
may cause the air inside of your vehicle to become too
dry. To prevent this from happening, after the air in
your vehicle has cooled, turn the recirculation mode off.
The air conditioning system removes moisture from
the air, so you may sometimes notice a small amount of
water dripping underneath your vehicle while idling or
after turning off the engine. This is normal.
Sensors
The solar sensor on your vehicle monitors the solar
radiation and the air inside of your vehicle, then uses the
information to maintain the selected temperature by
initiating needed adjustments to the temperature, the fan
speed and the air delivery system. The system may
also supply cooler air to the side of the vehicle facing the
sun. The recirculation mode will also be activated, as
necessary. Do not cover the solar sensor located in the
center of the instrument panel, near the windshield,
or the system will not work properly.
Defogging and Defrosting
Fog on the inside of windows is a result of high humidity
(moisture) condensing on the cool window glass. This
can be minimized if the climate control system is
used properly. This mode allows you to clear fog or
frost from your windshield.
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Use the up and down arrows on the AIR FLOW button
to cycle through the available modes.
WINDSHIELD-FLOOR:This mode directs most of
the airow to the windshield with some airow to
the outboard outlets (for the side windows) and the
oor outlets.
MID:This mode directs airow through the
instrument panel outlets.
MID-FLOOR:This mode directs airow through both
the oor and the instrument panel outlets. There is
also a small amount of air directed to the windshield
and the outboard outlets (for the side windows).
FLOOR:This mode directs most of the airow to
the oor outlets with some directed to the outboard
outlets (for the side windows) and the windshield.
OFF:Press the OFF button once to turn off the
passenger climate control, if it has been activated.
Pressing the OFF button a second time will turn off the
main system. The outside temperature will be shown
on the display when the system is off.
VENT (Flow-Through Ventilation):Pressing the VENT
button allows outside air to ow through your vehicle
without the air conditioning compressor working. To turn
off the VENT selection, press the VENT button again.
Selecting the VENT and AUTO buttons at the same time
allows the system to control the airow automatically
without using the air conditioning compressor or
the recirculation mode.RECIRC (Recirculation):Press this button to limit the
amount of outside air coming into the vehicle. It can be
used to prevent outside air and odors from entering your
vehicle or to help heat or cool the air inside your vehicle
more quickly. Press this button to turn the recirculation
mode on or off. When the button is pressed, an indicator
light will come on. The recirculation mode cannot be used
with the FRONT defrost or VENT mode.
On hot days, open the windows to let hot air escape; then
close them. This helps to reduce the time it takes for your
vehicle to cool down. It also helps the system to operate
more efficiently.
For quick cool down on hot days, press the AUTO button
and the system will automatically enter recirculation
mode and the temperature will be at the full cold position
for maximum cooling.
Using these settings together for long periods of time may
cause the air inside of your vehicle to become too dry. To
prevent this from happening, after the air in your vehicle
has cooled, turn the recirculation mode off.
The air conditioning system removes moisture from the
air, so you may sometimes notice a small amount of
water dripping underneath your vehicle while idling or
after turning off the engine. This is normal.
3-28

To recall the climate control settings last stored on your
transmitter, press the unlock button on your remote
keyless entry transmitter and put the ignition in
ACCESSORY or RUN. The settings will be recalled.
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 briey when you start the
engine just to let you know they are 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 is 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 are a big help.
Your vehicle may also have a DIC that works along with
the warning lights and gages. SeeDriver Information
Center (DIC) on page 3-45.
The volume of your vehicle’s warning chimes can be
adjusted. For information seeChime Level Adjustment
on page 3-82.
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Instrument Panel Cluster
Your instrument panel cluster is designed to let you know at a glance how your vehicle is running. You’ll know how
fast you’re going, how much fuel you’re using, and many other things you’ll need to drive safely and economically.
Your vehicle is equipped with one of these instrument panel clusters, which includes indicator warning lights
and gages that are explained on the following pages.
Standard Cluster (United States version shown, Canada similar)
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Safety Belt Reminder Light
When the key is turned to RUN or START, a chime will
come on for several seconds to remind people to
fasten their safety belts.
The safety belt light will
also come on and stay on
for several seconds,
then ash for several more.
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,
seeAir Bag Systems on page 1-47.This light will come on
when you start your
vehicle, and it will ash 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.
{CAUTION:
If the air bag readiness light stays on after you
start your vehicle, it means the air bag system
may not be working properly. The air bags in
your vehicle may not inate in a crash, or they
could even inate without a crash. To help
avoid injury to yourself or others, have your
vehicle serviced right away if the air bag
readiness light stays on after you start your
vehicle.
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The air bag readiness light should ash for a few
seconds when you turn the ignition key to RUN. If the
light doesn’t come on then, have it xed so it will
be ready to warn you if there is a problem.
Battery Warning Light
When you turn the key to
RUN, this light will turn on
briey to show that the
generator and battery
charging systems
are working.
If the light stays on, a chime will sound indicating that
the vehicle needs service. You should take your vehicle
to the dealer as soon as possible. To save the battery
until you get there, turn off all accessories and set
the 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 xed so it will
be ready to warn you if there’s a problem.
United StatesCanada
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When the ignition is on, the brake system warning light
will also come on when you set your parking brake.
The light will stay on if your parking brake doesn’t
release fully. If you try to drive off with the parking brake
set, a chime will also come on until you release the
parking brake. If the light stays on after your parking
brake is fully released, it means you have a brake
problem.
If the light comes 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
oor. It may take longer to stop. If the light is still on,
have the vehicle towed for service. SeeTowing
Your Vehicle on page 4-31.
{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 have pulled off the road and stopped
carefully, have the vehicle towed for service.
Anti-Lock Brake System
Warning Light
With the anti-lock brake
system, the light(s) will
come on when your engine
is started and may stay
on for several seconds.
That’s normal.
If the light stays on, turn the ignition to OFF. Or, if the
light comes on when you’re driving, stop as soon
as possible and turn the ignition off. Then start the
engine again to reset the system. If the light still stays
on, or comes on again while you’re driving, your vehicle
needs service. If the regular brake system warning
light isn’t on, you still have brakes, but you don’t have
anti-lock brakes. If the regular brake system warning
light is also on, you don’t have anti-lock brakes
and there’s a problem with your regular brakes. See
Brake System Warning Light on page 3-37.
The anti-lock brake system warning light will come on
briey when you turn the ignition key to RUN. This
is normal. If the light doesn’t come on then, have it xed
so it will be ready to warn you if there is a problem.
3-38

Traction Control System (TCS)
Warning Light
For vehicles equipped with
the traction control system,
this warning light should
come on briey when
the engine is started.
If the warning light doesn’t come on then, have it xed
so it will be ready to warn you if there’s a problem.
If it stays on, or comes on when you’re driving, there
may be a problem with your traction control system and
your vehicle may need service. When this warning
light is on, the system will not limit wheel spin. Adjust
your driving accordingly.The traction control system warning light may come on
for the following reasons:
If you turn the system off by pressing the button
located on the end of the gearshift lever, the
warning light will come on and stay on. To turn the
system back on, press the button again. The
warning light should go off. SeeTraction Control
System (TCS) on page 4-9for more information.
If there’s a brake system problem that is specically
related to traction control, the traction control
system will turn off and the warning light will come
on. If your brakes begin to overheat, the traction
control system will turn off and the warning light will
come on until your brakes cool down.
If the traction control system is affected by an
engine-related problem, the system will turn off and
the warning light will come on.
If the traction control system warning light comes on
and stays on for an extended period of time when the
system is turned on, your vehicle needs service.
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