2002 BUICK LESABRE cooling

2-16
Trunk
CAUTION:
It can be dangerous to drive with the trunk lid
open because carbon monoxide (CO) gas can
come into your vehicle. You can't see or smell
CO. It can cause unconsciousness and even death.
If you must drive with the trunk lid open or if
electrical wiring or other cable connections must
pass through the seal between the body and the
trunk lid:

Make sure all other windows are shut.

Turn the fan on your heating or cooling
system to its highest speed with the setting
on VENT. That will force outside air into
your vehicle. See ªComfort Controlsº in
the Index.

If you have air outlets on or under the
instrument panel, open them all the way.
See ªEngine Exhaustº in the Index.
Trunk Lock Release
To unlock the trunk from the outside, insert the master
key and turn it clockwise.
Remote Trunk Release and Trunk Lockout
The TRUNK release button
is located on the driver's
door trim map pocket.
Push this button to open the trunk. The transaxle must
be in PARK (P) or NEUTRAL (N) for the remote trunk
release button to work.
To lock the trunk from inside your vehicle, insert the
master key and turn it clockwise to LOCK. The VALET
key will not work in this procedure.
Trunk Security Override
The remote keyless entry transmitter, will open the trunk
even if the trunk release lockout switch is in LOCK.

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.

3-2
Comfort Controls
This section describes how to operate your climate
control system. With this system, you can control the
heating, cooling and ventilation in your vehicle.
Your vehicle also has a flow
-through ventilation system
described later in this section.
Electronic Touch Climate Control
Fan Lever
The FAN lever is used 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.Temperature Lever
This lever is used to adjust the temperature of the air
coming through the system. Move the TEMPERATURE
lever between COOL and WARM to change the
temperature of the air coming through your outlets.
Mode Controls
The buttons on your system allow you to choose settings
to deliver air through the floor ducts, instrument panel
outlets or windshield outlets.
RECIRC (Recirculation): Press this button to limit the
amount of outside air entering your vehicle. This is
helpful when you are trying to cool the interior of the
vehicle quickly, or limit the amount of outside air
entering your vehicle. To turn off RECIRC, press the
button again. If you select FRONT defrost or BLEND
while RECIRC is selected, the system will automatically
turn off RECIRC to prevent fogging. If you select
RECIRC while in FRONT defrost, the RECIRC light
will flash three times to let you know this is not allowed.

3-3
VENT: This setting directs outside air through the
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 (Heater): This setting directs most of the air
out of the floor ducts 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 outlets and the floor ducts.
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 (Maximum Air Conditioning): This setting
directs airflow through the 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.
Also in this mode, the RECIRC function is activated
to create the maximum cooling effect in the vehicle. If
RECIRC was active 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): This setting cools the outside
air entering your vehicle and directs it through the
instrument panel outlets. The air conditioning
compressor is on in this mode.
BI
-LEV (Bi-Level): This setting directs warmer air
to the floor ducts and cooler air to the instrument panel
outlets. The air conditioning compressor is on in
this mode.

3-8
To program a personal choice climate control setting,
do the following:
1. Choose a temperature setting for the driver and if
desired, for the passenger. See ªDual Automatic
ComforTemp

Climate Controlº and ªPassenger
Climate Controlº earlier in this section.
2. Adjust the fan speed and the direction of the airflow.
3. Locate the memory buttons on the driver's
door panel.
4. Press a memory button (1 or 2) until you hear two
beeps. The beeps confirm that your selection has
been saved and can now be recalled.
Follow these steps each time you want to change the
stored settings. For more information on the memory
feature, see ªMemory Seat and Mirrorsº in the Index.
Air Conditioning
On hot days, open the windows long enough to let hot
inside air escape. This reduces the time it takes for your
vehicle to cool down. Then keep your windows closed
for the air conditioner to work its best.
If you have the electronic touch system, for quick
cool
-down on very hot days, use maximum air
conditioning with the temperature and fan speed
adjusted to COOL and HIGH. If this setting is used
for long periods of time, the air in your vehicle may
become too cold and dry.
For normal cooling on hot days, use Normal and
adjust the temperature and fan speed for your comfort.
If Recirculation is selected while in the Normal air
conditioning mode, the system works like maximum
air conditioning and recirculates the air.

3-9
On sunny days, when the air is moderately warm or
cool, use Bi
-Level to deliver warm air to the floor ducts
and cooler air to the instrument panel outlets. On days
like these, the sun may adequately warm your upper
body, but your lower body may not be warm enough.
To warm or cool the air delivered, adjust the
TEMPERATURE lever.
The amount of fresh air entering the vehicle is limited
when Recirculation is selected. This is helpful when you
are trying to cool the air in your vehicle or limit the air
entering the vehicle.
If your vehicle has the Dual Automatic ComforTemp
system and it is set for Automatic Operation, on very hot
days, the system will automatically enter recirculation
mode and the temperature door will be positioned at the
full cold position for maximum cooling. If the system is
not in the automatic mode, recirculation should be
selected to provide maximum cooling. You can choose
the extreme comfort setting of 60
F (16
C), but the
system will not cool any faster as a result.Heating
If your vehicle has the electronic touch system, on cold
days, use HTR with the TEMPERATURE lever toward
WARM and the fan speed toward HIGH.
If your vehicle has the Dual Automatic ComforTemp
system, and on cold days, if the automatic mode is
selected, the system will automatically direct the air
toward the floor and the temperature door will be
positioned at the full hot position. You can choose the
extreme comfort setting of 90
F (32
C) but the
system will not warm up any faster as a result. If the
outside temperature is cold, the fan will be delayed to
avoid blowing cold air. Pushing the FAN, AIR FLOW
or FRONT buttons will override this delay, turn off
the automatic mode and return the system to
manual operation.
With each system, outside air will be brought in and sent
through the floor ducts. The heater works best if you
keep your windows closed while using it.

3-11
NOTICE:
Do not try to clear frost or other material from
the inside of the rear window with a razor blade
or anything else that is sharp. This may damage
the rear defogger grid. The repairs wouldn't be
covered by your warranty.
Do not attach a temporary vehicle license, tape or decals
across the defogger grid on the rear window.
Ventilation System
For mild outside temperatures when little heating
or cooling is needed, use VENT (on the electronic
touch system or manual operation on the Dual
Automatic ComforTemp
system) to direct
outside air through your vehicle. Air will flow
through the instrument panel outlets.
Your vehicle's flow
-through ventilation system supplies
outside air into the vehicle while it's moving. While the
vehicle is not moving, you can get outside air to flow
through by selecting any air choice (except the rear
window defogger) and any fan speed.
Adjust the direction of
airflow by moving the
louvered vents.
If you have the optional rear
passenger ComforTemp,
you can adjust the direction
of the airflow to the rear
seating area.

4-25
If you drive regularly in steep country, or if you're
planning to visit there, here are some tips that can make
your trips safer and more enjoyable.

Keep your vehicle in good shape. Check all fluid
levels and also the brakes, tires, cooling system
and transaxle. These parts can work hard on
mountain roads.

Know how to go down hills. The most important
thing to know is this: let your engine do some of
the slowing down. Shift to a lower gear when you
go down a steep or long hill.
CAUTION:
If you don't shift down, your brakes could get
so hot that they wouldn't work well. You would
then have poor braking or even none going
down a hill. You could crash. Shift down to
let your engine assist your brakes on a steep
downhill slope.
CAUTION:
Coasting downhill in NEUTRAL (N) or with the
ignition off is dangerous. Your brakes will have to
do all the work of slowing down. They could get
so hot that they wouldn't work well. You would
then have poor braking or even none going
down a hill. You could crash. Always have your
engine running and your vehicle in gear when
you go downhill.

Know how to go uphill. Drive in the highest
gear possible.

Stay in your own lane when driving on two
-lane
roads in hills or mountains. Don't swing wide or
cut across the center of the road. Drive at speeds
that let you stay in your own lane.

As you go over the top of a hill, be alert. There could be
something in your lane, like a stalled car or an accident.

You may see highway signs on mountains that warn
of special problems. Examples are long grades, passing
or no
-passing zones, a falling rocks area or winding
roads. Be alert to these and take appropriate action.