1999 PONTIAC BONNEVILLE Owners Manual

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Sometimes, strong magnetic fields can affect the
compass. If the CALIBRATE light comes on as shown
above, try calibrating the compass as follows:
1. Drive the car to an open, flat area.
2. Press and hold the MODE button until the
CALIBRATE light reappears.
3. Release the MODE button. The heading display will
start to rotate.
4. Drive the car in small circles. Don't drive faster than
10 mph (16 km/h).
5. Drive in circles until the CALIBRATE light goes
out. It usually takes one to five circles.
6. Your compass should be calibrated. You will know
this when the direction bars are on and the
CALIBRATE light is off.Compass Accuracy
Your compass may show different headings around
bridges, power lines, large metal objects and steep hills.
This is normal and is true of compasses in general.
If you put large metal objects like golf clubs in the trunk
they could affect accuracy. If the accuracy is close, the
compass will adapt to these objects over time.
If you use an antenna with a magnetic base, it is best to
mount it away from the center of the trunk near the
rear window.
The rear defog system can affect accuracy, and the
compass corrects for the rear defog. However, if the rear
defog is turned on while making sharp turns, the
accuracy may be off. When you turn the rear defog off
again, the accuracy returns to normal.
Do not turn on the rear defog if you are trying to
calibrate. The system will not allow the calibration. You
will hear the chime, and CALIBRATE will flash for a
few seconds.
Be aware that metal objects are sometimes buried in the
ground. They can affect accuracy and you may not know
they are there. As an example, many concrete roads
have metal reinforcements inside.

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-NOTES

3-
First Edition for Pontiac Bonneville Owner's Manual ± 1999
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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
-6 Air Conditioning
3
-6 Heating
3
-7 Ventilation System
3
-8 Defogging and Defrosting
3
-9 Rear Window Defogger
3
-10 Audio Systems
3
-10 Setting the Clock for AM-FM Stereo
3
-10 Setting the Clock for All Systems Except
AM
-FM Stereo
3
-10 AM-FM Stereo
3
-12 AM-FM Stereo with Cassette Tape Player
(If Equipped)
3
-16 AM-FM Stereo with Cassette Tape Player and
Equalizer (If Equipped)3
-19 AM-FM Stereo with Compact Disc Player
(If Equipped)
3
-22 AM-FM Stereo with Compact Disc Player and
Equalizer (If Equipped)
3
-25 Theft-Deterrent Feature
3
-27 Audio Steering Wheel Controls (If Equipped)
3
-28 Understanding Radio Reception
3
-28 Tips About Your Audio System
3
-29 Care of Your Cassette Tape Player
3
-30 Care of Your Compact Discs
3
-30 Care of Your Compact Disc Player
3
-31 Fixed Mast Antenna
3
-31 Power Antenna Mast Care

First Edition for Pontiac Bonneville Owner's Manual ± 1999
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3-2
Comfort Controls
This section tells you how to make your air system work
for you. Your comfort control system uses
ozone
-friendly R-134a refrigerant.
With these systems, 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.
Standard Climate Control System
H±23±4002±S
Fan Knob
The left knob is the fan knob and selects the force of air
you want. Turn the knob clockwise to increase fan speed
and counterclockwise to decrease fan speed. The fan will
always run unless the right control knob is turned to OFF.
The fan must be on to run the air conditioning compressor.
Temperature Knob
The center control 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.
Mode Knob
The right control has settings for air conditioning and
non
-air conditioning modes. The mode control allows
you to choose the direction of air delivery.
MAX: This setting provides maximum cooling with the
least amount of work. MAX recirculates much of the air
inside your vehicle so it cools quickly. The air is
directed through the instrument panel outlets.

First Edition for Pontiac Bonneville Owner's Manual ± 1999
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3-3
A/C: This setting cools the air entering your vehicle and
directs it through the instrument panel outlets. The
air conditioning compressor operates in all air
conditioner positions.
BI-LEVEL: This setting directs air into your
vehicle in two ways. Cool air is directed to the upper
portion of your body through the middle instrument
panel outlets while warmed air is directed to the floor.
VENT: This setting directs airflow through the
middle instrument panel outlets. The air conditioning
compressor is not working when VENT is selected.
HEATER: This setting directs warmed air
through the floor outlets. Some warm air is diverted to
the windshield to minimize fogging.
DEFOG: This setting directs air to the HEATER
outlets and toward the windshield.
DEFROST: This setting directs most of the air
toward the windshield.
Electronic Climate Control System (Option)
H±23±0005±T
Temperature Button
The TEMP button changes the temperature of the air
coming through the system. Press the up arrow for
warmer air and the down arrow for cooler air.
Fan Button
The button with the fan symbol adjusts the fan speed.
Press the up arrow to increase fan speed and the down
arrow to decrease fan speed.

First Edition for Pontiac Bonneville Owner's Manual ± 1999
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3-4
Mode Button
Press this button to deliver air through the floor, middle
or windshield outlets. The system will stay in the
selected mode until the MODE or AUTO button is
pushed. Press the up arrow to cycle through the
available modes.
Automatic Operation
When the system is set for AUTO, sensors will control
the air delivery mode. Air will come from the floor,
middle and windshield outlets. The fan speed will vary
as the system maintains the selected temperature setting.
To find your comfort zone, start with 75
F (24
C)
temperature setting and allow about 20 minutes for the
system to regulate. Press the TEMP button 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 that maximum cooling setting and will not
regulate the fan speed. If you choose the temperature
setting of 90
F (33
C), the system will remain at that
maximum heating setting and will not regulate the fan
speed. Choosing either maximum setting will not cause the
system to heat or cool any faster.Pressing the AUTO button will display the requested
temperature, fan speed and air delivery mode for
five seconds, then change to display the outside air
temperature. Be careful not to put anything over the
sensor located in the middle of the instrument panel near
the windshield, or over the sensor in the grille above the
radio. These sensors are used by the automatic system to
regulate temperature.
The exterior temperature display sensor is in front of the
vehicle, near the radiator. The displayed temperature is
most accurate when the vehicle is moving. During stops,
or while idling, the display shows the previous driving
temperature for best system control.
To avoid blowing cold air in cold weather, the system
will delay turning on the fan until warm air is available.
The length of delay depends on outside air temperature,
engine coolant temperature, and time since the engine
was last started. Pushing the fan button will override this
delay and change the fan to a selected single speed.
If you leave your vehicle, the system will remember the
control setting the next time you start your engine.

First Edition for Pontiac Bonneville Owner's Manual ± 1999
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3-5
Manual Operation
You may also manually adjust the air delivery mode or
fan speed.
HEAT: Manually selecting HEAT by cycling
through the MODE settings will deliver air to the
floor outlets.
DEFOG: Manually selecting DEFOG by cycling
through the MODE settings will deliver air to the floor
and windshield outlets.
BI-LEVEL: Manually selecting BI-LEVEL by
cycling through the MODE setting will deliver warm air
to the floor and cooler air to the middle instrument
panel outlets.
OFF: Press this button to turn the system off. Fresh air
will continue to flow through the vehicle, and the
system will try to maintain the previously chosen
comfort setting. The outside temperature will show in
the display when the system is off.A/C: Press this button to turn the air conditioning on
and off. The system will cool and dehumidify the air
inside the vehicle. In the AUTO mode, the display will
show that A/C is active, but the air conditioning
compressor only operates when the system determines it
is needed.
RECIRC: Press this button to limit the amount of
fresh air entering your vehicle. You may use this setting
to limit odors entering your vehicle. Press RECIRC to
change to a manual MODE and air will recirculate until
the RECIRC button is pressed again. RECIRC will show
on the display and then return to EXT TEMP display.
Operating the RECIRC mode in cold temperatures or
under high humidity conditions may cause moisture to
form on the inside of the windshield. If this condition
occurs, press the RECIRC button again.
DEFROST: Press this button to clear the
windshield. The system will automatically control the
fan speed if you select defrost from AUTO.

F
C: Press this button to display the temperature in
degrees Fahrenheit or Celsius.

First Edition for Pontiac Bonneville Owner's Manual ± 1999
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3-6 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 standard system, for quick cool
-down on
very hot days, use MAX with the temperature knob in
the blue area. 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 A/C with the
temperature knob in the blue area. This setting cools the
air entering your vehicle and directs it through the
instrument panel outlets.
If you have the electronic system, press the A/C button
to turn the system on. The system will cool and
dehumidify the air inside the vehicle. Also while in
AUTO mode, the system will use RECIRC as necessary
to cool the air.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 middle instrument panel outlets. To
warm or cool the air delivered, push the TEMP button
up or down.
When the air conditioning system is in AUTO mode, the
A/C light will always be on. When the ambient
temperature outside the vehicle reaches 40
F (4
C), the
compressor will remain on continuously.
Heating
If you have the standard system, on cold days use
HEATER with the temperature knob in the red area. If
you have the electronic system, press AUTO and adjust
the temperature by pressing the TEMP up or down
button. You may also adjust the electronic system
manually by pressing the MODE button and selecting
HEAT. Again, adjust the temperature by pressing the
TEMP up or down button.
With each system, outside air will be brought in and sent
through the floor outlets. The heater works best if you
keep your windows closed while using it.