2002 BUICK LESABRE air conditioning

3-
3-1
Section 3 Comfort Controls and Audio Systems
In this section, you'll find out how to operate the comfort control and audio systems offered with your vehicle.
Be sure to read about the particular systems supplied with your vehicle.
3
-2 Comfort Controls
3
-2 Electronic Touch Climate Control
3
-4 Dual Automatic ComforTemp
Climate
Control (If Equipped)
3
-6 Passenger Climate Control (If Equipped)
3
-7 Personal Choice Comfort Controls
(If Equipped)
3
-8 Air Conditioning
3
-9 Heating
3
-10 Defogging and Defrosting
3
-10 Rear Window Defogger
3
-11 Ventilation System
3
-12 Steering Wheel Controls for Climate Control
(If Equipped)
3
-13 Audio Systems
3
-13 Setting the Clock
3
-13 AM-FM Stereo with Cassette Tape Player
(If Equipped)3
-19 AM-FM Stereo with Compact Disc
Player with Automatic Tone Control and
Radio Data Systems (RDS) (If Equipped)
3
-26 AM-FM Stereo with Cassette Tape and
Compact Disc Player with Automatic Tone
Control and Radio Data Systems (RDS)
(If Equipped)
3
-35 Trunk-Mounted CD Changer (Option)
3
-39 Personal Choice Radio Controls (If Equipped)
3
-40 Theft-Deterrent Feature (If Equipped)
3
-40 Audio Steering Wheel Controls (If Equipped)
3
-41 Understanding Radio Reception
3
-41 Tips About Your Audio System
3
-42 Care of Your Cassette Tape Player
3
-43 Care of Your Compact Discs
3
-43 Care of Your Compact Disc Player
3
-44 Diversity Antenna System
3
-44 Chime Level Adjustment

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.

3-5
OFF: If the passenger comfort control is turned on, it
can be turned off by pressing the OFF button once.
Pressing the OFF button a second time will turn off the
main system. Turning off the main system causes the fan
to turn off and the airflow to be directed toward the
floor. The system will still try to keep the interior of the
vehicle at the previously chosen temperature setting.
The outside temperature will show on the display when
the system is off.
The ventilation system always allows fresh air to flow
through your vehicle when the vehicle is moving even
when the system is off.
VENT (Flow
-Through Ventilation): The VENT
button allows outside air to flow through your vehicle
without the air conditioning compressor working. To
turn off the VENT selection, push the VENT button
again. 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.RECIRC (Recirculation): When RECIRC is selected,
the system will 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. RECIRC and AUTO
may be selected at the same time. The system will remain
in RECIRC until the ignition is turned off or the RECIRC
button is pressed again. RECIRC can be selected in all
manual airflow modes except FRONT defrost and VENT.
If you select RECIRC while in FRONT defrost, the
RECIRC light will flash three times to let you know this is
not allowed. This is to prevent fogging. FRONT: This selection is used to defrost
the windshield by directing the airflow toward the
windshield. To turn off FRONT, press the AUTO
or AIR FLOW button.
If the AIR FLOW up button is selected while in the
FRONT defrost mode, the system will direct the air
toward the windshield and the floor. If the AIR FLOW
down button is selected while in the FRONT defrost
mode, the system will direct the air toward the floor, and
the FRONT defrost mode will cancel.
FRONT defrost will work better if any ice or snow is
cleared from the hood and the air inlet area between the
base of the windshield and the hood.

3-6 Passenger Climate Control (If Equipped)
If your vehicle is equipped with the Dual Automatic
ComforTemp system, the front seat passenger can
control the air temperature in his or her seating area. The
control is located on the passenger's door armrest.The temperature can be set up to 5
F (3
C) cooler
or warmer than the primary setting. To activate the
passenger control, press the button with the red arrow
to increase temperature. Each time you press the button, a
red indicator light will come on. To decrease temperature,
press the button with the blue arrow. Each time you press
the button a blue indicator light will come on.
If the passenger control has been turned on, it can be
turned off by pressing the OFF button on the main
system once. (Pressing the OFF button a second time
will turn off the main system.)
Automatic Operation
Press the AUTO button when you want the system to
automatically maintain a selected temperature inside of
your vehicle. When the system is set for automatic
operation, air will come from the floor ducts, instrument
panel outlets or windshield outlets depending on the
temperature inside the vehicle, the outside temperature
and sun load. Fan speed and use of air conditioning and
recirculation will vary as needed.

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.

6-72
Air Conditioning
Refrigerant Capacity
If you do your own service work, you'll need the proper
service manual. See ªDoing Your Own Service Workº in
the Index for additional information. It is recommended
that service work on your air conditioning system be
performed by a qualified technician.
Air Conditioning
Refrigerant R
-134a 2.2 lbs. (1.0 kg). . . . . . . . . . . . . .
Use Refrigerant Oil, R
-134a Systems
Normal Maintenance
Replacement Parts
Engine Air Cleaner/Filter A1096C*. . . . . . . . . . . . .
Passenger Compartment
Air Filter GM Part No. 25654414. . . . . . . . . . . .
Engine Oil Filter PF
-47* . . . . . . . . . . . . . . . . . . . . .
Fuel Filter GF
-627* . . . . . . . . . . . . . . . . . . . . . . . . .
Transaxle Filter GM Part No. 24206433. . . . . . . . . .
PCV Valve GM Part No. 17113515. . . . . . . . . . . . . .
Spark Plugs 41
-921* . . . . . . . . . . . . . . . . . . . . . . . . .
Gap: 0.060 inch (1.52 mm)
Windshield Wiper Blades
Length 22.0 inches (56.0 cm). . . . . . . . . . . . . . . . . .
Type Shepherd's Hook. . . . . . . . . . . . . . . . . . . . . . . .
*ACDelco

part number.

7-36 Fuel System Inspection
Inspect the complete fuel system for damage or leaks.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they are
cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace as needed. Clean the
outside of the radiator and air conditioning condenser.
To help ensure proper operation, a pressure test of the
cooling system and pressure cap is recommended at
least once a year.
Throttle System Inspection
Inspect the throttle system for interference or binding,
and for damaged or missing parts. Replace parts as
needed. Replace any components that have high effort
or excessive wear. Do not lubricate accelerator and
cruise control cables.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook
-up, binding, leaks, cracks,
chafing, etc. Inspect disc brake pads for wear and
rotors for surface condition. Inspect other brake parts,
including calipers, parking brake, etc. You may need
to have your brakes inspected more often if your
driving habits or conditions result in frequent braking.