2004 PONTIAC GRAND PRIX sensor

AUTOMATIC OVERDRIVE (D):This position is for
normal driving. If you need more power for passing,
and you're:
·Going less than 35 mph (55 km/h), push your
accelerator pedal about halfway down.
·Going about 35 mph (55 km/h) or more, push the
accelerator pedal all the way down.
You'll shift down to the next gear and have more power.
Notice:If your vehicle seems to start up rather
slowly, or if it seems not to shift gears as you go
faster, something may be wrong with a transaxle
system sensor. If you drive very far that way,
your vehicle can be damaged. So, if this happens,
have your vehicle serviced right away. Until
then, you can use SECOND (2) when you are driving
less than 35 mph (55 km/h) and AUTOMATIC
OVERDRIVE (D) for higher speeds.THIRD (3):This position is also used for normal driving,
but it offers more power and lower fuel economy than
AUTOMATIC OVERDRIVE (D).
Here are some times you might choose THIRD (3)
instead of AUTOMATIC OVERDRIVE (D):
·When driving on hilly, winding roads.
·When towing a trailer, so there is less shifting
between gears.
·When going down a steep hill.
·When driving in non-highway scenarios
(i.e. city streets, etc.).
SECOND (2):This position gives you more power but
lower fuel economy than THIRD (3). You can use
SECOND (2) on hills. It can help control your speed as
you go down steep mountain roads, but then you
would also want to use your brakes off and on.
Notice:Don't drive in SECOND (2) for more than
25 miles (40 km), or at speeds over 55 mph
(90 km/h), or you can damage your transaxle.
Use THIRD (3) or AUTOMATIC OVERDRIVE (D) as
much as possible. Don't shift into SECOND (2)
unless you are going slower than 65 mph (105 km/h)
or you can damage your engine.
2-24

Light Sensor
The light sensor for
the DRL and AUTO
headlamps feature is
located on top of
the instrument panel.
If you cover the sensor, it will read ªdark,º and the
headlamps will turn on to full brightness.
Exterior Lighting Battery Saver
If the parking lamps or headlamps have been left on,
the exterior lamps will turn off approximately 10 minutes
after the ignition is turned to OFF. This protects
against draining the battery in case you have
accidentally left the headlamps or parking lamps on.
The battery saver does not work if the headlamps are
turned on after the ignition is turned to OFF.
If you need to leave the lamps on for more than
10 minutes, use the exterior lamp control to turn the
lamps back on.
Interior Lamps
Instrument Panel Brightness
This feature controls the brightness of the instrument
panel lights.
The interior lamps control
is located on the
instrument panel, to the
left of the steering wheel.
To adjust the brightness of the instrument panel lights,
turn the control.
3-16

Safety Belt Reminder Light
When the key is turned to RUN or START, a chime
will come on for several seconds to remind people to
fasten their safety belts, unless the driver's safety belt is
already buckled.
The safety belt light will
also come on and stay on
for several seconds,
then it will ¯ash for
several more.
If the driver's belt is already buckled, neither the chime
nor the light will come on.
Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows the air bag symbol. 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 diagnostic module.
For more information on the air bag system, see
Air Bag
Systems on page 1-48.
This light will come on
when you start your
vehicle, and it will ¯ash
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.
3-34

SERVICE BRAKE SYSTEM
This symbol appears with
the SERVICE BRAKE
SYSTEM warning
message.
This warning message will appear when the vehicle's
brakes are not funtioning properly. Have the brake
system serviced by your dealer as soon as possible.
This warning message will display only while the ignition
is in RUN. Press the set/reset button to acknowledge
this warning message and to clear it from the screen.
This message will continue to display if it has not been
acknowledged when the engine is turned off. It will
also re-display for three seconds if the message has
been acknowledged, but the condition still exists
when the engine is turned off.
The message will re-appear when the engine is turned
on and the condition still exists.
SERVICE BRAKE APPLY SENSOR
This message will display when the brake apply sensor
is not functioning properly. The vehicle still has
brakes when this warning message displays, but you
should have the vehicle serviced by your dealer as soon
as possible.
This warning message will display only while the ignition
is in RUN. Press the set/reset button to acknowledge
this warning message and to clear it from the screen.
This message will continue to display if it has not been
acknowledged when the engine is turned off. It will
also re-display for three seconds if the message has
been acknowledged, but the condition still exists
when the engine is turned off.
The message will re-appear when the engine is turned
on and the condition still exists.
3-81

Fuses Usage
13 A/C Clutch
14 Oxygen Sensor
15 Power Control Module
16Power Control Module/Electronic
Throttle Control
17 Electronic Throttle Control
18 Display
19 Anti-Lock Brake Solenoid
20 Fuel Injection
21 Transmission Solenoid
22 Fuel Pump
23 Anti-Lock Brakes
24 Electronic Ignition
26 Battery Main 1
27 Battery Main 2
28 Battery Main 3
29 Fan 1
30 Battery Main 4
31 Anti-Lock Brake Motor
32 Fan 2
33 StarterRelays Usage
34 Hghi-Beam Headlamps
35 Low-Beam Headlamps
36 Fog Lamps
37 Iginition 1
38 Air Conditioner Compressor
39 Horn
40 Powertrain
41 Fuel Pump
42 Fan 1
43 Fan 3
44 Windshield Wiper/High
45 Windshield Wiper
46 Fan 2
48 Crank
49 Spare Fuse
50 Spare Fuse
51 Spare Fuse
52 Blank
53 Blank
54 Blank
55 Fuse Puller
§A/C Clutch
5-103

Roadside
Assistance Program....................................... 7-6
Rocking Your Vehicle To Get It Out...................4-33
Running Your Engine While You Are Parked.......2-32
S
Safety Belt
Pretensioners..............................................1-28
Reminder Light............................................3-34
Safety Belts
Care of......................................................5-93
Driver Position............................................1-15
How to Wear Safety Belts Properly................1-15
Questions and Answers About Safety Belts........1-14
Rear Safety Belt Comfort Guides for
Children and Small Adults.........................1-26
Rear Seat Passengers.................................1-23
Right Front Passenger Position......................1-23
Safety Belt Extender....................................1-28
Safety Belt Use During Pregnancy.................1-22
Safety Belts Are for Everyone.......................1-10
Safety Chains.................................................4-40
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-5
Seats
Head Restraints............................................ 1-7
Heated Seats............................................... 1-5
Manual........................................................ 1-2Seats (cont.)
Power Lumbar.............................................. 1-5
Power Seat.................................................. 1-4
Reclining Seatbacks...................................... 1-6
Split Folding Rear Seat.................................. 1-8
Securing a Child Restraint
Designed for the LATCH System...................1-43
Rear Seat Position......................................1-43
Right Front Seat Position..............................1-45
Security While You Travel.................................. 7-6
Service........................................................... 5-3
Adding Equipment to the Outside
of Your Vehicle.......................................... 5-4
Doing Your Own Work................................... 5-3
Engine Soon Light.......................................3-40
Publications Ordering Information...................7-10
SERVICE ABS SYSTEM..................................3-80
SERVICE BRAKE APPLY SENSOR...................3-81
SERVICE BRAKE SYSTEM.............................3-81
Service Bulletins.............................................7-10
Service Manuals.............................................7-10
SERVICE PARK LAMPS..................................3-82
SERVICE STABILITY SYSTEM.........................3-83
SERVICE THEFT SYSTEM..............................3-83
SERVICE TRACTION SYSTEM........................3-82
SERVICE VARIABLE EFFORT STEERING.........3-84
SERVICE VEHICLE SOON..............................3-84
Setting Preset PTYs
(RDS Only).............................3-94, 3-105, 3-119
Setting Preset Stations.................3-91, 3-102, 3-116
12