2003 PONTIAC BONNEVILLE air conditioning

Climate Controls
Climate Control System
With this system you can control the heating, cooling
and ventilation for your vehicle.
FAN: Turn the left knob clockwise or counterclockwise
knob to turn the fan on and
off. The fan must be on in
order for the air conditioning compressor to run.
I ~ . - -.-- --- -- -I-,,,,,, +hm .Fn- n.nnnA , Ich )hic 10 IIILIC~~G VI wsblcaac (ut I apbuu. Du-. I ..
TEMP (Temperature Control): Turn the right knob
clockwise or counterclockwise to manually increase or
decrease
the temperature inside your vehicle,
To change the current mode, select one of the following:
(FLOOR): This mode directs most of the air to
the floor outlets with some air directed to the outboard
outlets (for the side windows) and some air directed
to the windshield.
li;' (Bi-Level): This mode directs approximately half of
the air to the instrument panel outlets, and then
directs most
of the remaining air to the floor outlets.
There is also a small amount of air directed to the
windshield and outboard outlets (for the side windows).
This mode directs cooler air to the upper outlets and
warmer air to the floor outlets.
f;' (Vent): This mode directs air io th2 imtr~ment
panel outlets.
(Recirculation): This mode keeps outside air
from coming in the vehicle.
It can be used to prevent
outside air and odors from entering your vehicle or
to help heat or cool the air inside your vehicle more
quickly. Press
this button to turn tne recircuia'rion mode
on or off. When the button is pressed, an indicator
light will come on. The recirculation mode cannot be
used with the FRONT defrost mode.
3-25

.1#t A/C (Air Conditioning): Press this button to turn
the air conditioning compressor on and off. When
A/C is
pressed, an indicator light in the button will come on
to let you know that air conditioning is activated.
If your
climate control system is
off, you may also turn it
back on in vent mode by selecting the
A/C button.
On hot days, open the windows
to let hot inside
air escape; then close them. This helps
to reduce the
time
it takes for your vehicle to cool down. It also helps
the system
to operate more efficiently.
For quick cool down on hot days, do the following:
1. Select the vent mode.
2. Select the recirculation mode.
3. Select NC.
4. Select the coolest temperature.
5. Select the highest fan speed.
Using these settings together for long periods of time
may cause the air inside
of your vehicle to become too
dry.
To prevent this from happening, after the air in
your vehicle has cooled, turn the recirculation mode
off.
The air conditioning system removes moisture from
the air,
so you may sometimes notice a small amount of
water dripping underneath your vehicle while idling or
after turning off the engine. This is normal.
Sensors
The solar sensor on your vehicle monitors
radiation and the air inside of your vehicle, the solar
then uses the
information
to maintain the selected temperature by
initiating needed adjustments
to the temperature, the fan
speed and the air delivery system. The system may
also supply cooler air to the side of the vehicle facing the
sun. The recirculation mode will also be activated, as
necessary.
Do not cover the solar sensor located in the
center of the instrument panel, near the windshield,
or the system will not work properly.
Defogging and Defrosting
There are two modes to clear fog or frost from your
windshield. Use the defog mode to clear the windows of
fog or moisture and warm the passengers. Use the
defrost mode
to remove fog or frost from the windshield
more quickly.
Press one of the available mode buttons
to select the
defog or defrost mode.
+3 (Defog): This mode directs most of the air to the
windshield and the floor outlets.
A small amount of air is
also directed to the outboard outlets (for the side
windows). When you select this mode, the system turns
off recirculation and runs the air conditioning compressor
unless the outside temperature is at or below freezing.
The recirculation mode cannot be selected while in
the defog mode.
3-26

@ FRONT (Defrost): Pressing this button directs
most of the air to the windshield and the outboard outlets
(for the side windows), with some air directed to the
floor outlets. When you select this mode, the system
turns
off recirculation and runs the air conditioning
compressor unless the outside temperature is at
or below freezing. The recirculation mode cannot be
selected while in the FRONT defrost mode.
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog or frost from the rear window.
ISH] REAR: Press this button to turn the rear window
defogger on or
off. Be sure to clear as much snow from
the rear window as possible.
The rear window defogger will turn
off approximately
10 minutes after the button is pressed. If turned on
again, the defogger
will only run for approximately five minutes before turning
off. If you maintain
a speed
above
30 mph (48 km/h), the rear defogger will not turn
off automatically to help keep the rear glass clear.
The defogger can also be turned
off by pressing the
button again or by turning
off the engine.
if your vehicle has outside heated mirrors, the mirrors
will heat to help clear fog or frost from the surface of the
mirror when the rear window defogger button is
pressed.
Notice: Don’t use a razor blade or something else
sharp on the inside of the rear window.
If you
do, you could cut or damage the defogger and the
repairs would not be covered by your warranty.
Do not attach
a temporary vehicie iicense, tape, a
decal or anything similar to the defogger grid.
3-27

If you are in city traffic, and your vehicle is stopped and
idling, or the weather is hot, the system may switch
from the outside air mode to the recirculation mode.
To prevent the air inside of your vehicle from becoming
too stale, be sure to return to the outside air mode
periodically.
& RECIRC (Recirculation): Press this button to
limit the amount of outside air coming into the vehicle.
It can be used to prevent outside air and odors from
entering your vehicle or to help heat or cool the
air inside your vehicle more quickly. Press this button to
turn the recirculation mode on or off. When the button
is pressed, an indicator light will come on. The
recirculation mode cannot be used with the FRONT
defrost mode.
a A/C (Air Conditioning}: Press this button to
override the automatic system and turn the air
conditioning system on or off. When
A/C is pressed, an
indicator light in the button will come on to let you
know that it is activated. When in AUTO, the air
conditioning compressor will come on automatically, as
necessary. The air conditioning compressor will also
run when you select the FRONT defrost mode and
outside temperatures are above freezing.
On hot days, open the windows to let hot inside air
escape; then close them. This helps to reduce the time
it takes for your vehicle to cool down. It also helps
the system to operate more efficiently. For
quick cool down on hot days, press the AUTO
button and the system will automatically enter
recirculation mode and the temperature will be at the full
cold position for maximum cooling.
Using these settings together for long periods of time
may cause the air inside
of your vehicle to become too
dry. To prevent this from happening, after the air in
your vehicle has cooled, turn the recirculation mode
off.
The air conditioning system removes moisture from
the air,
so you may sometimes notice a small amount of
water dripping underneath your vehicle while idling or
after turning off the engine. This is normal.
Sensors
The solar sensor on your vehicle monitors the solar
radiation and the air inside of your vehicle, then uses the
information to maintain the selected temperature by
initiating needed adjustments to the temperature, the fan
speed and the air delivery system. The system may
also supply cooler air to the side of the vehicle facing the
sun. The recirculation mode will also be activated, as
necessary.
Do not cover the solar sensor located in the
center
of the instrument panel, near the windshield,
or the system
will not work properly.
3-30

There is also an EXT (exterior) temperature sensor
located behind the front grill. This sensor reads
the outside air temperature and helps to maintain the
temperature inside the vehicle. Any cover on the front of
the vehicle could cause a false reading
in the
temperature.
Defogging and Defrosting
There are two modes to clear fog or frost from your
windshield. Use the defog mode to clear the windows of
fog or moisture and warm the passengers. Use the
FRONT defrost mode to remove fog or frost from the
windshield more quickly.
Press the
MODE button until DEFOG appears to seiect
this function. Press the FRONT button to select the
defrost function.
DEFOG: This mode directs the air equally between the
windshield and the floor outlets.
9 FRONT (Defrost): Pressing this button directs
most of the air to the windshield and the outboard outlets
(for the side windows), with some air directed to the
floor outlets. When you select this mode, the system
turns
off recirculation and runs the air conditioning
or below freezing. The recirculation mode cannot be
selected while in the
FRONT defrost mode.
compressor unless the outside temperature is at
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog or frost from the rear window.
(@ REAR: Press this button to turn the rear window
defogger on or
off. Be sure to clear as much snow from
the rear window as possible.
The rear window defogger will turn
off approximately 10
minutes after the button is pressed. If turned on
again, the defogger will only run for approximately five
minutes before turning
off. If you maintain a speed
above
30 mph (48 km/h), the rear defogger will not turn
off automatically to help keep the rear glass clear.
The defogger can
also be turned off by pressing the
button again or by turning
off the engine.
If your vehicle has outside heated mirrors, the mirrors
will heat to help clear fog or frost from the surface of the
mirror when the rear window defogger button is
pressed.
Nofice: Don’t use a razor blade or something else
sharp on the inside
of the rear window. If you
do, ysu could cut or damage the defogger and the
repairs would not be covered by your warranty.
Do not attach a temporary vehicle license, tape, a
decal or anything similar to the defogger grid.
3-3 1

The optional Traction Control System is active and
is limiting wheel spin. You may feel the system
working, but this is normal. Slippery road conditions
may exist,
so adjust your driving accordingly.
If the LOW TRAC light comes on, slippery road
conditions may exist,
so you should consider slowing
down and adjusting your driving accordingly.
Engine Coolant Temperature Gage
United States Canada
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
... NC
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 cnime wili sound.
See DIC bVamiisgs and
Messages on page 3-60 for more information.
See
Engine Overheating on page 5-29, for information
on what to do
if your engine overheats.
This gage shows the engine coolant temperature.
3-45

Fuses
1
2
3
7 A
5
6
7
Usage
Not Used
Accessory
Windshield Wipers
>!ct L'sd
Headlamp Low Beam Left
Headlamp Low Beam Right
Spare
Fuses
8
9
10
11
12
13
14
15
16
17
18
19
20
21 22
23
24
r)r LU
26
Usage
Powertrain Control Module Battery
Headlamp High Beam Right
Headlamp High Beam Left Ignition
1
Not Used
Transaxle
Cruise Control Direct Ignition System
Injector Bank
#2
Not Used
Not Used
Powertrain Control Module Ignition
Oxygen Sensor
Injector Bank #1
Auxiliary Power Cigar Lighter
Fog Lamps/Daytime Running Lamps
!-!%-!
Air Conditioning Clutch
5-93

Relays
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Usage
Headlamp High Beam
Headlamp Low Beam
Fog Lamps
Daytime Running Lamps
Horn
Air Conditioning Clutch
HVAC Solenoid
Accessory
Not Used
Starter 1
Cooling Fan 1
Ignition
1
Cooling Fan Series/Parallel
Cooling Fan
2
Circuit
Breakers
41
Fuses
42
43
44
45
46
47
48
49
50
51
52
53
Usage
Starter
Usage
Not Used Not Used
Antilock Brake System
Not Used
Cooling Fan 1
Cooling Fan
2
Spare
Spare
Spare Spare
Spare
Fuse Puller
5-94