air conditioning PONTIAC BONNEVILLE 2002 Owners Manual

2-84
Engine Coolant Temperature Gage
United States Canada
This gage shows the engine coolant temperature.To prevent engine overheating, the air conditioning
compressor will turn off automatically just prior to the
gage pointer entering the shaded area. As the engine
cools down, the air conditioning compressor will
automatically turn back on. On vehicles equipped with
the DIC, the message ENGINE HOT... A/C DISABLED
will appear in the DIC display and a warning chime
will sound.
If the gage pointer moves into the shaded area, your
engine is too hot. On vehicles equipped with the systems
monitor, the CHECK GAGES light will come on and a
warning chime will sound.
On vehicles with a DIC, a CHECK GAGES
TEMPERATURE message will be displayed and a
warning chime will sound. See ªDIC Warnings and
Messagesº in the Index for more information.
The section ªProblems on the Road,º in this manual
explains what to do if your engine overheats. See
ªEngine Overheatingº in the Index.

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
-7 Air Conditioning
3
-7 Heating
3
-8 Defogging and Defrosting
3
-8 Rear Window Defogger
3
-9 Ventilation System
3
-11 Comfort Controls Personalization
(If Equipped)
3
-11 Audio Systems
3
-12 Setting the Clock
3
-12 AM-FM Stereo with Cassette Tape Player
with Programmable Equalization and Radio
Data System (RDS) (If Equipped)
3
-20 AM-FM Stereo with Compact Disc Player
with Programmable Equalization and Radio
Data System (RDS) (If Equipped)3
-29 AM-FM Stereo with Cassette Tape
and Compact Disc Player with
Programmable Equalization and
Radio Data System (RDS) (If Equipped)
3
-39 Trunk-Mounted CD Changer (Option)
3
-43 Theft-Deterrent Feature
3
-44 Audio Steering Wheel Controls (If Equipped)
3
-45 Understanding Radio Reception
3
-45 Tips About Your Audio System
3
-46 Care of Your Cassette Tape Player
3
-47 Care of Your Compact Discs
3
-47 Care of Your Compact Disc Player
3
-47 Diversity Antenna System
3
-48 Chime Level Adjustment

3-2
Comfort Controls
This section tells you how to make your air system work
for you. 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.
Your vehicle may be equipped with a passenger
compartment air filter. For more information, see
ªPassenger Compartment Air Filterº in the Index.
Standard Climate Control System
FAN: The left knob regulates the force of the air coming
through the system. Push this knob to turn the fan on
and off. Turn the knob clockwise toward HI to increase
the fan speed and counterclockwise toward LO to
decrease the fan speed.The fan must be on in order for
the air conditioning compressor to run.
TEMP (Temperature): The right knob regulates the
temperature of the air coming through the system. Turn
it toward the blue area for cooler air. Turn it toward the
red area for warmer air.

3-3
Mode Buttons
You may choose the direction of air delivery by
selecting one of the five mode buttons.
(Defog): This setting directs most of the airflow to
the floor ducts and the windshield defroster. A small
amount of airflow is directed to the side window
defroster outlets. This mode can be useful to remove the
moisture from the inside of the windshield when the
outside temperature is cold or the humidity is high.
(Floor): This setting directs most of the airflow to
the floor ducts with some airflow directed to the side
window defrosters. There is also a small amount of
airflow directed to the front defroster.
(Bi-Level): This setting directs airflow through
both the instrument panel outlets and the floor ducts.
There is also a small amount of air directed to the front
defroster and the side window defrosters.
(Vent): This setting directs airflow through the
instrument panel outlets.
FRONT (Defrost): This setting directs most of
the airflow to the windshield defroster with some
airflow to the side window defrosters and floor ducts.
To improve windshield clearing performance when you
select FRONT defrost, your air conditioning compressor
will run automatically above approximately 40
F (4
C).
This dehumidifies the air to help dry the windshield.
Even though the compressor may be running, the A/C
light will not come on in FRONT defrost unless you
select A/C.
RECIRC (Recirculation): Press this button
to limit the amount of outside air entering your vehicle.
This is helpful when you are trying to quickly cool the
interior of the vehicle or to limit odors entering the
vehicle. RECIRC may be selected in all manual airflow
modes except FRONT defrost. If you select RECIRC
while in defrost, the RECIRC light will flash to let
you know that this is not allowed. This is to help
prevent fogging.

3-4
When the weather is cool or damp, operating in
RECIRC for extended periods of time may cause
fogging of the vehicle's windows. To clear the fog,
switch back to outside air by turning off RECIRC, select
either defog or FRONT defrost mode and increase the
fan speed. To avoid refogging of the windows, minimize
your use of recirculation under these conditions and turn
the A/C on to help dehumidify the air.
A/C (Air Conditioning): Press this button to turn
the air conditioning compressor on and off. The system
will cool and dehumidify the air inside your vehicle. If
your comfort control system is off, you can also turn it
back on in vent mode by selecting the A/C button.
Even though A/C is not selected, in FRONT defrost
mode the A/C compressor will run automatically at
temperatures over approximately 40
F (4
C) to
improve windshield clearing performance.
Electronic Climate Control System (Option)
DRIVER (Driver's Side Temperature): The knob
on the left is used to change the temperature of the air
coming through the system on the driver's side of the
vehicle. Push this knob to turn the system on and off.
Turn the knob toward the blue area to decrease the set
temperature. Turn the knob toward the red area to
increase the set temperature. When this knob is
adjusted, the word DRIVER will be displayed
under the set temperature.
When the passenger's set temperature is not active,
this knob controls both the driver's and passenger's side,
and both DRIVER and PASS will be displayed under the
set temperature.

3-5
PASS (Passenger's Side Temperature): The knob on
the right is used to change the temperature of the air
coming through the system on the passenger's side of
the vehicle. Push this knob to turn the system on and off.
Turn the knob toward the blue area to decrease the set
temperature. Turn the knob toward the red area to
increase the set temperature. When this knob is
adjusted, only the word PASS will be displayed
under the set temperature.
(Fan): The button with the fan symbol allows
you to manually adjust the fan speed. Press the HIGH
side to increase fan speed and the LOW side to decrease
fan speed.
MODE: Press this button repeatedly to cycle through
the choices on the display to select the air delivery mode
of airflow into the vehicle. The system will stay in the
selected mode until MODE is pressed again or until the
AUTO button is pressed.

FLOOR: This setting directs most of the airflow to
the floor ducts.

DEFOG: This setting directs most of the airflow to
the floor ducts and the windshield outlets.
BI
-LEVEL: This setting directs airflow through
both the instrument panel outlets and the floor ducts.
This mode will deliver slightly warmer air through
the floor ducts.

PANEL: This setting directs airflow through the
instrument panel outlets.
Whenever MODE is pressed, the display will show the
current system settings for five seconds before returning
the display to the exterior temperature.
FRONT (Defrost): This setting directs most
of the airflow to the windshield with some airflow to the
side window outlets and floor ducts.
To improve windshield clearing performance when you
select FRONT defrost, the air conditioning compressor
will run automatically when outside temperatures are
above approximately 40F (4C). This dehumidifies
the air to help dry the windshield. Even though the
compressor may be running, the A/C light will not
come on in FRONT defrost unless you select A/C.
OUTSIDE AIR: Press this button to send
outside air through the system.

3-6
RECIRC (Recirculation): Press this button to
limit the amount of outside air entering your vehicle.
This is helpful when you are trying to quickly cool the
interior of the vehicle or limit odors entering the vehicle.
RECIRC may be selected in all manual airflow modes
except FRONT defrost. If you select RECIRC while in
FRONT defrost, the RECIRC light will flash to let you
know that this is not allowed by the system. This is to
prevent fogging.
When the weather is cool or damp, operating the system
in recirculation, without also using the air conditioning,
may cause fogging of the windshield. To clear the fog,
switch back to outside air, select defog or FRONT
defrost mode and increase the fan speed. To avoid
refogging of the windows, minimize your use of
recirculation under these conditions and turn the air
conditioning on to help dehumidify the air.
A/C (Air Conditioning): Press this button to
turn the air conditioning compressor on and off. This
system will cool and dehumidify the air inside your
vehicle. The air conditioning compressor will also run
when you select the FRONT defrost mode and outside
temperatures are approximately 40
F (4
C) or
higher. When in AUTO mode, air conditioning will
automatically be used as needed to maintain the selected
temperature setting.AUTO (Automatic Control): Press the AUTO
button for automatic control of the air delivery mode,
fan speed, air conditioning and recirculation. Whenever
AUTO is pressed, the display will show the current
settings for five seconds before returning the display to
exterior temperature and AUTO.
The fan speed and mode of airflow delivery will vary as
the system maintains the selected temperature setting.
The air conditioning compressor will run at outside
temperatures over approximately 40
F (4
C). The air
inlet will normally be set to OUTSIDE AIR. If it is hot
enough outside, the air inlet mode will automatically
switch to recirculation.
To find you comfort zone for the automatic settings,
start with a temperature setting of 75
F (24
C) and
allow about 20 minutes for the system to regulate.
Then turn the TEMP knobs up or down to adjust the
temperature setting if necessary. If you choose the
temperature setting of 60
F (15
C), the system will
remain at the maximum cooling setting and fan speed.
If you choose the temperature setting of 90
F (33
C),
the system will remain at the maximum heat setting and
fan speed. Choosing either maximum setting will not
cause the system to heat or cool any faster.

3-7
Be sure not to cover the sensor located on the top of the
instrument panel near the windshield. This sensor
regulates interior temperatures based on sun load.
To avoid blowing cold air through the system in cold
weather, the automatic system will delay turning on the
fan until warm air is available. The length of delay
depends on engine coolant temperature. Pressing the fan
button will override this delay and cancel the automatic
mode, returning the system to manual mode.
The EXT (exterior) temperature sensor is located in the
front of the vehicle behind the grill. The EXT temperature
displayed may not be accurate for a few minutes if you
have restarted the engine after it was already warmed.
Air Conditioning
On hot days, open the windows long enough to let hot
air inside the vehicle 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 standard system, for quick cool
-down on
very hot days, use the airflow from the instrument panel
outlets, press RECIRC and A/C with the temperature knob in
the blue area. If this maximum A/C 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 A/C without
recirculation with the temperature knob in the blue area.If you have the electronic system, in AUTO mode
the system will cool and dehumidify the air inside
the vehicle. Also while in AUTO mode, the system
will maximize its performance by using recirculation
as necessary.
On cool, but sunny days, with the standard system or
through manual operation of the electronic system, use
bi
-level to deliver warm air to the floor and cooler air to
the instrument panel outlets. To warm or cool the air
delivered, turn the temperature knobs.
Heating
If you have the standard system, on cold days use the
floor ducts with the temperature knob in the red area. If
you have the electronic system, press AUTO and adjust
the temperature by turning the temperature knob up or
down. You may also adjust the electronic system
manually by pressing the MODE button and selecting
FLOOR. Again, adjust the temperature by turning the
temperature knobs.
With either system, outside air will be heated and sent
through the floor ducts. The heater works best if you
keep your windows closed while using it.

6-70
Minifuse Usage
20 Oxygen Sensor
21 Injector Bank #1
22 Auxiliary Power
23 Cigar Lighter
24 Fog Lamps/Daytime
Running Lamps
25 Horn
26 Air Conditioning Clutch
Micro Relay Usage
27 Headlamp High Beam
28 Headlamp Low Beam
29 Fog Lamps
30 Daytime Running LampsMicro Relay Usage
31 Horn
32 Air Conditioning Clutch
33 HVAC Solenoid
Mini Relay Usage
34 Accessory
35 Air Pump
36 Starter 1
37 Cooling Fan Secondary
38 Ignition 1
39 Cooling Fan Series/Parallel
40 Cooling Fan Primary

6-74
Minifuse Usage
1 Fuel Pump
2 Heater, Ventilation, Air
Conditioning Blower
3 Memory Seat
4 Assembly Line Diagnostic Link
5 Not Used
6 Compact Disc (CD)Minifuse Usage
7 Driver Door Module
8 Supplemental Inflatable Restraint
9 Not Used
10 Lamps Park Right
11 Ventilation Solenoid
12 Ignition 1
13 Lamps Park Left
14 Interior Lamp Dimmer Module
15 Not Used
16 Heated Seat Left Front
17 Not Used
18 Rear Door Modules
19 Stoplamps
20 PARK (P) / REVERSE (R)
21 Audio
22 Retained Accessory Power