1999 PONTIAC BONNEVILLE air conditioning

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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3-5
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.

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Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel information,
and then it shows how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted to its appearance care.
6
-2 Service
6
-3 Fuel
6
-5 Fuels in Foreign Countries
6
-6 Filling Your Tank
6
-9 Filling a Portable Fuel Container
6
-9 Checking Things Under the Hood
6
-13 Engine Oil
6
-17 Engine Air Cleaner/Filter
6
-20 Automatic Transaxle Fluid
6
-23 Radiator Pressure Cap
6
-24 Engine Coolant
6
-27 Power Steering Fluid
6
-28 Windshield Washer Fluid
6
-29 Brakes
6
-32 Battery
6
-33 Bulb Replacement6
-43 Windshield Wiper Blade Replacement
6
-44 Tires
6
-52 Appearance Care
6
-52 Cleaning the Inside of Your Vehicle
6
-55 Cleaning the Outside of Your Vehicle
6
-57 Cleaning Aluminum or Chrome-Plated
Wheels (If Equipped)
6
-57 Sheet Metal Damage
6
-59 GM Vehicle Care/Appearance Materials
6
-60 Vehicle Identification Number (VIN)
6
-61 Electrical System
6
-68 Replacement Bulbs
6
-69 Capacities and Specifications
6
-70 Air Conditioning Refrigerants
6
-70 Normal Maintenance Replacement Parts

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Capacities and Specifications
The following approximate capacities are given in English and metric conversions. Please refer to ªRecommended
Fluids and Lubricantsº in the Index for more information.
Automatic Transaxle (Overdrive)
Pan Removal and Replacement . . . . . . . . . . 6.0 quarts (5.6 L)
Complete Overhaul . . . . . . . . . . . . . . . . . . . 11.0 quarts (10.4 L)
Cooling System. . . . . . . . . . . . . . . . . . . . . . . . 13.0 quarts (12.3 L)
When draining or replacing torque converter, more fluid may be needed.
Engine Crankcase. . . . . . . . . . . . . . . . . . . . . 4.5 quarts (4.3 L)
Oil change with filter change.
Fuel Tank. . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.0 gallons (68.1 L)
Tire Pressures. . . . . . . . . . . . . . . . . . . . . . . . . See Tire
-Loading Information label on the driver's door.
Wheel Nut Torque. . . . . . . . . . . . . . . . . . . . . 100 lb
-ft 140 N´m
R
-134a Air Conditioning. . . . . . . . . . . . . . . . See refrigerant charge label under the hood.
All capacities are approximate. When adding, be sure to fill to the appropriate level, as recommended in this manual.

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6-70 Engine Specifications
3800 Series II Engine (L36)
VIN Engine Code K. . . . . . . . . . . . . . . . . . . . . . . . . . .
Type V6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement 3.8 Liters. . . . . . . . . . . . . . . . . . . . . . . .
Horsepower 205
-hp . . . . . . . . . . . . . . . . . . . . . . . . . . .
Firing Order 1
-6-5-4-3-2 . . . . . . . . . . . . . . . . . . . . . .
Thermostat Temperature 195
F (91
C) . . . . . . . . . . .
3800 Series II Supercharged Engine (L67)
VIN Engine Code 1. . . . . . . . . . . . . . . . . . . . . . . . . . .
Type V6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement 3.8 Liters. . . . . . . . . . . . . . . . . . . . . . . .
Horsepower 240
-hp . . . . . . . . . . . . . . . . . . . . . . . . . . .
Firing Order 1
-6-5-4-3-2 . . . . . . . . . . . . . . . . . . . . . .
Thermostat Temperature 195
F (91
C) . . . . . . . . . . .
Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same. If the air
conditioning system in your vehicle needs refrigerant, be
sure the proper refrigerant is used. If you're not sure, ask
your dealer.
Normal Maintenance
Replacement Parts
Air Cleaner Filter AC Type A-1096C . . . . . . . . . . . . .
Engine Oil Filter AC Type PF
-47 . . . . . . . . . . . . . . . .
Fuel Filter AC Type GF
-627 . . . . . . . . . . . . . . . . . . . .
Transaxle Filter GM Part No. 8651909. . . . . . . . . . . .
Spark Plugs AC Type 41
-921* . . . . . . . . . . . . . . . . .
Gap: 0.060 inch (1.52 mm)
Windshield Wiper Blades
Type Pin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Length 22 inches (56 cm). . . . . . . . . . . . . . . . . . . . .
*On 3800 Supercharged Engine (Code 1) only, this
replaces original spark plug NGK Type PTR4B
-15.