2003 PONTIAC BONNEVILLE sensor

In many crashes severe enough to inflate an air bag,
windshields are broken by vehicle deformation.
Additional windshield breakage may also occur from the
right front passenger air bag.
0 Air bags are designed to inflate only once. After an
air bag inflates, you’ll need some new parts for
your air bag system.
If you don’t get them, the air
bag system won’t be there to help protect you
in another crash.
A new system will include air bag
modules and possibly other parts. The service
manual for your vehicle covers the need to replace
other parts.
Your vehicle is equipped with an electronic frontal
sensor, which helps the sensing system distinguish
between a moderate frontal impact and a more
severe frontal impact. Your vehicle is also equipped
with a crash sensing and diagnostic module,
which records information about the frontal air bag
system. The module records information about
the readiness
of the system, when the system
commands air bag inflation and driver’s safety belt
usage at deployment. The module also records
speed, engine
RPM, brake and throttle data.
0 Let only qualified technicians work on your air bag
systems. Improper service can mean that an air
bag system won’t work properly. See your dealer for
service.
Notice: If you damage the covering for the driver’s
or the right front passenger’s air bag, or the air
bag covering on the driver’s and right front
passenger’s seatback, the bag may not work
properly. You may have to replace the air bag
module in the steering wheel, both the air bag
module and the instrument panel for
the right front
passenger’s air bag, or both the air bag module
and seatback for the driver’s and right front
passenger’s side impact air bag.
Do not open or
break the air bag coverings.
1-54

Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the
day. DRL can be helpful in many different driving
conditions, but they can be especially helpful in the
short
periods after dawn and before sunset. Fully functional
daytime running lamps are required on all vehicles
first sold in Canada.
A light sensor on top of the instrument panel monitors
the exterior light level for the operation of DRL and
Twilight Sentinel@,
so be sure it isn’t covered. The DRL
system will make your high-beam headlamps come
on at a reduced brightness when the following conditions
are met:
The ignition is on,
the exterior lamp control is off, and
the transaxle is not in PARK (P).
When the DRL are on, only your high-beam headlamps
will be
on at reduced intensity. The taillamps,
sidemarker and other lamps won’t be on. Your
instrument panel won’t be lit either. When it’s
dark enough outside, your regular intensity
headlamps will come on
at full brightness and the DRL
lighting will turn
off. The parking lamps that normally
come on with your headlamps will also come on. When
it’s bright enough outside, the regular intensity
headlamps and parking lamps will turn back
off, and the
reduced brightness
DRL lighting will turn back on.
To idle your vehicle during the day with the DRL
off,
shift the transaxle into PARK (P). The DRL will stay off
until you shift out of P.4RK (P).
At night, you can turn off all exterior lamps when you
are in PARK
(P) by turning the Twilight Sentinel@ knob
all the way to
OFF.
If the knob was already in OFF, it must be cycled to ON
and back to OFF. Turn the knob clockwise to turn the
exterior lighting back on. The lamps will come back
on automatically when you put the transaxle in gear.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
3-1 4

.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

Automatic Climate Control System
With this system you can control the heating, cooling
and ventilation for your vehicle.
Automatic Operation
AUTO (Automatic): Press the AUTO button for
automatic control of the inside temperature, the air
delivery mode and the fan speed.
1. Press the AUTO button. Whenever this button is
pressed, the display will show the current settings
for five seconds before returning the display to
the exterior temperature.
2. Adjust the temperature to 75” F (24” C).
Choosing the coldest or warmest temperature
setting will not cause the system to heat or cool any
faster.
If you set the system at the warmest
temperature setting, the system will remain at the
maximum heat setting and fan speed.
In cold weather, the system will start at reduced fan
speeds to avoid blowing cold air into your vehicle
until warmer air is available. The system will
start out blowing air at the floor but may change
modes automatically as the vehicle warms up
to maintain the chosen temperature setting. The
length of time needed for warm up will depend on
the outside temperature and the length of time
that has elapsed since your vehicle was last driven.
3. Wait for the system to regulate. This may take from
10 to 30 minutes. Then adjust the temperature, if
necessary.
Do not cover the solar sensor located in the center OT
the instrument panel, near the windshield. For more
information on the solar sensor, see “Sensors” later in
this section.
3-28

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

Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows
AIR BAG. The system checks
the air bag’s electrical system for malfunctions. The light
tells you
if there is an electrical problem. The system
check includes the air bag sensors, the air bag modules,
the wiring and the crash sensing and diagnostic
module. For more information on the air bag system,
see
Air Bag Systems on page 1-47.
AIR
BAG
This light will come on
when you start your
vehicle, and it will flash for
a few seconds. Then
the light should go out.
This means the system is
ready.
If the air bag readiness light stays on after you start the
vehicle or comes on when you are driving, your air
bag system may not work properly. Have your vehicle
serviced right away. If the air
I ~ 3 reac ess IiL ~ :ays on after
you
start your vehicle,
it means the air bag system
may not be working properly. The air bags in
your vehicle may not inflate
in a crash, or they
could even inflate without a crash.
To help
avoid injury
to yourself or others, have your
vehicle serviced right away if the air bag
readiness
light stays on after you start your
vehicle.
The air bag readiness light should flash for a few
seconds when you turn the ignition key to
ON. If the
light doesn’t come
on then, have it fixed so it will
be ready to warn you if there is a problem.
On vehicles with the
DIC, a SERVICE AIR BAG
message will be displayed when there is a problem with
the air bag system. See
DIC Warnings and Messages
on page 3-60 for more information.
3-40

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