2001 PONTIAC BONNEVILLE air conditioning

3-8
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, press
the OUTSIDE AIR button and select either DEFOG or
FRONT defrost. Be sure A/C OFF is not selected to
allow the air conditioning compressor to run
automatically and help dehumidify the air.
OUTSIDE AIR: Press this button to allow fresh
air to enter your vehicle if you currently have RECIRC
selected. You may also override the system's automatic
use of RECIRC by selecting OUTSIDE AIR.
FRONT: Press this button to clear the windshield.
The system will automatically control the fan speed if
you select defrost from AUTO. If the outside
temperature is 38
F (3
C) or warmer, your air
conditioning compressor will automatically run to help
dehumidify the air and dry the windshield.
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 the airflow from the PANEL outlets,
press RECIRC and A/C with the temperature knob in the
blue area. If this max 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
RECIRC 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 RECIRC 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 TEMP knob up or down.

6-65
Minifuse Usage
1 Not Used
2 Accessory
3 Windshield Wipers
4 Not Used
5 Headlamp Low Beam Left
6 Headlamp Low Beam Right
7 Spare
8 Powertrain Control
Module BatteryMinifuse Usage
9 Headlamp High Beam Right
10 Headlamp High Beam Left
11 Ignition 1
12 Not Used
13 Transaxle
14 Cruise Control
15 Direct Ignition System
16 Injector Bank #2
17 Not Used
18 Not Used
19 Powertrain Control
Module Ignition
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

6-66
Mirco Relay Usage
27 Headlamp High Beam
28 Headlamp Low Beam
29 Fog Lamps
30 Daytime Running Lamps
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 PrimaryMaxibreaker Usage
41 Starter
Maxifuse Usage
42 A.I.R.
43 Antilock Brake System
44 Not Used
45 Not Used
46 Cooling Fan Secondary
47 Cooling Fan Primary
48 Spare
49 Spare
50 Spare
51 Spare
52 Spare
53 Fuse Puller

6-69
Rear Underseat Bussed Electrical Center (BEC)
The rear BEC is located
below the rear seat on the
driver's side. The rear seat
cushion must be removed to
access the BEC. See
ªRemoving the Rear Seat
Cushionº in the Index.
Minifuse Usage
1 Fuel Pump
2 Heater, Ventilation, Air
Conditioning Blower
3 Memory Seat
4 Assembly Line Diagnostic Link
5 Not Used
6CD
7 Driver Door Module
8 Supplemental Inflatable Restraint

6-70
Minifuse Usage
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
23 Not Used
24 Not Used
25 Passenger Door Module
26 Body
27 Interior Lamps
28 Not Used
29 Ignition SwitchMinifuse Usage
30 Instrument Panel
31 Heated Seat Right Front
32 Not Used
33 Heating, Ventilation,
Air Conditioning
34 Ignition 3 Rear
35 Antilock Brake System
36 Turn Signal/Hazard
37 HVAC Battery
38 Dash Integration Module
Micro Relay Usage
39 Fuel Pump
40 Parking Lamps
41 Ignition 1
42 Not Used
43 Not Used
44 Park Brake
45 Reverse Lamps
46 Retained Accessory Power

6-72
Replacement Bulbs
Front Outside Lamps Bulb Number
Parking/Turn Lamps 3157. . . . . . . . . . . . . . . . . . . . .
Headlamp
Low Beam 9006. . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Beam 9005. . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Outside Lamps Bulb Number
Taillamps 3057. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Back
-Up Lamps 3057. . . . . . . . . . . . . . . . . . . . . . . . .
Stoplamps 3057. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn 3157. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
For service information on other bulbs, contact your
dealer's service department.
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.
Capacities
Automatic Transaxle (Overdrive)
Pan Removal and Replacement 7.4 quarts (7.0 L). . .
Complete Overhaul 10.0 quarts (9.5 L). . . . . . . . . .
When draining or replacing torque converter, more
fluid may be needed.
Cooling System10.0 quarts (9.5 L) . . . . . . . . . . . . . .
Engine Crankcase
Oil change with filter change 4.5 quarts (4.3 L). . .
Fuel Tank18.5 U.S. gallons (70.0 L) . . . . . . . . . . . .
Tire PressureSee Tire
-Loading . . . . . . . . . . . . . . . . .
Information label on the rear edge
of the driver's door.
Air Conditioning
RefrigerantSee 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.

7-34 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.