warning light PONTIAC GRAND PRIX 2007 Service Manual

Brakes
Brake Fluid
Your brake master
cylinder reservoir is
lled with DOT-3 brake
uid. SeeEngine
Compartment Overview
on page 346for the
location of the reservoir.
There are only two reasons why the brake uid
level in the reservoir might go down. The rst
is that the brake uid goes down to an acceptable
level during normal brake lining wear. When
new linings are put in, the uid level goes back
up. The other reason is that uid is leaking out of
the brake system. If it is, you should have your
brake system xed, since a leak means that
sooner or later your brakes will not work well, or
will not work at all.So, it is not a good idea to top off your brake uid.
Adding brake uid will not correct a leak. If you
add uid when your linings are worn, then you will
have too much uid when you get new brake
linings. You should add or remove brake uid, as
necessary, only when work is done on the
brake hydraulic system.
{CAUTION:
If your vehicle has too much brake uid, it
can spill on the engine. The uid will burn
if the engine is hot enough. You or others
could be burned, and your vehicle could
be damaged. Add brake uid only when
work is done on the brake hydraulic
system.
When your brake uid falls to a low level, your
brake warning light will come on. SeeBrake
System Warning Light on page 176.
378

Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that
make a high-pitched warning sound when the
brake pads are worn and new pads are needed.
The sound may come and go or be heard all
the time your vehicle is moving, except when you
are pushing on the brake pedal rmly.
{CAUTION:
The brake wear warning sound means that
soon the brakes will not work well. That
could lead to an accident. When you hear
the brake wear warning sound, have your
vehicle serviced.
Notice:Continuing to drive with worn-out
brake pads could result in costly brake repair.
Some driving conditions or climates may cause
a brake squeal when the brakes are rst applied or
lightly applied. This does not mean something is
wrong with your brakes.Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated,
inspect brake pads for wear and evenly tighten
wheel nuts in the proper sequence to GM torque
specications.
Brake linings should always be replaced as
complete axle sets.
Brake Pedal Travel
See your dealer if the brake pedal does not return
to normal height, or if there is a rapid increase in
pedal travel. This could be a sign of brake trouble.
Brake Adjustment
Every time you apply the brakes, with or without
the vehicle moving, your brakes adjust for wear.
Replacing Brake System Parts
The braking system on a vehicle is complex. Its
many parts have to be of top quality and work well
together if the vehicle is to have really good
braking. Your vehicle was designed and tested with
top-quality GM brake parts.
380

How to Check
Use a good quality pocket-type gage to check tire
pressure. You cannot tell if your tires are
properly inated simply by looking at them. Radial
tires may look properly inated even when they
are under-inated. Check the tire’s ination
pressure when the tires are cold. Cold means your
vehicle has been sitting for at least three hours
or driven no more than 1 mile (1.6 km).
Remove the valve cap from the tire valve stem.
Press the tire gage rmly onto the valve to
get a pressure measurement. If the cold tire
ination pressure matches the recommended
pressure on the Tire and Loading Information
label, no further adjustment is necessary. If the
ination pressure is low, add air until you reach the
recommended amount.
If you overll the tire, release air by pushing on
the metal stem in the center of the tire valve.
Re-check the tire pressure with the tire gage.
Be sure to put the valve caps back on the valve
stems. They help prevent leaks by keeping out dirt
and moisture.
Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS) uses
radio and sensor technology to check tire pressure
levels. If your vehicle has this feature, sensors
are mounted onto each tire and wheel assembly,
except for the spare tire. The TPMS sensors
monitor the air pressure in your vehicle’s tires and
transmit tire pressure readings to a receiver
located in the vehicle.
When a low tire pressure condition is detected,
the TPMS will illuminate the low tire pressure
warning symbol on the instrument panel cluster,
and at the same time a warning message to check
the pressure in a specic tire displays on the
Driver Information Center (DIC). The low
tire pressure warning light and the DIC warning
message CHECK TIRE PRESSURE come
on at each ignition cycle until the tires are inated
to the correct ination pressure.
409

For additional information and details about the
DIC operation and displays seeDIC Controls and
Displays (Base Level DIC) on page 186orDIC
Controls and Displays (Uplevel DIC with Trip
Computer) on page 190andDIC Warnings and
Messages on page 200.
During cooler weather conditions, the low tire
pressure warning light and the DIC warning
message may come on when the vehicle is rst
started and then turn off as you start to drive. This
could be an early indicator that the tire pressures
are getting low and need to be inated to the
proper pressure.
Each tire, including the spare (if provided), should
be checked monthly when cold and inated to
the ination pressure recommended by the vehicle
manufacturer on the vehicle placard or tire
ination pressure label. (If your vehicle has tires of
a different size than the size indicated on the
vehicle placard or tire ination pressure label, you
should determine the proper tire ination
pressure for those tires.)As an added safety
feature, your vehicle
has been equipped with
a tire pressure
monitoring system
(TPMS) that illuminates
a low tire pressure
telltale when one
or more of your tires is
signicantly
under-inated.
Accordingly, when the low tire pressure telltale
illuminates, you should stop and check your tires as
soon as possible, and inate them to the proper
pressure. Driving on a signicantly under-inated
tire causes the tire to overheat and can lead to tire
failure. Under-ination also reduces fuel efficiency
and tire tread life, and may affect the vehicle’s
handling and stopping ability.
Please note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver’s
responsibility to maintain correct tire pressure, even
if under-ination has not reached the level to trigger
illumination of the TPMS low tire pressure telltale.
410

Fuse Usage
RAP Retained Accessory Power
SUN ROOF Sunroof
CRUISE SW Cruise Switch
PK LP Parking Lamps
RR DEFOG Rear Window Defogger
DR LK/TRUNK Door Lock/Trunk
ONSTAR/ALDL Onstar
®/Diagnostic Link
Fuse Usage
CANISTER Fuel Tank Solenoid Canister
PK LAMPS Parking Lamps
RADIO/AMP Radio Amplier
RFA/MODRemote Function Activator
(Remote Keyless Entry)
DISPLAYSInstrument Panel Displays/Head-Up
Display (HUD), Driver Information
Center (DIC)
INT LIGHT Interior Lamps
HVAC Climate Controls
CHMSL/BKUPCenter High Mounted Stop
Lamp/Back-Up Lamps
PWR WDO Power Windows
SPRING
COIL 2Steering Wheel Control Switches
PWR SEAT Power Seat
TURN/HAZTurn Signals/Hazard
Warning Lamps
PWR MIRS Power Mirrors
HTD SEAT Heated Seat
To reinstall the end panel, position the lower
section with the edge of the instrument panel,
and press the sides of the panel until it snaps
into place.
461

A
Accessories and Modications..................... 336
Accessory Power Outlet(s).......................... 156
Adding Equipment to Your Airbag-Equipped
Vehicle....................................................... 79
Additives, Fuel............................................ 340
Add-On Electrical Equipment....................... 459
Air Cleaner/Filter, Engine............................. 355
Air Conditioning..................................157, 162
Airbag
Passenger Status Indicator....................... 173
Readiness Light....................................... 172
Airbag Sensing and Diagnostic
Module (SDM).......................................... 504
Airbag System............................................... 64
Adding Equipment to Your
Airbag-Equipped Vehicle......................... 79
How Does an Airbag Restrain?.................. 72
Passenger Sensing System....................... 74
Servicing Your Airbag-Equipped Vehicle..... 78
What Makes an Airbag Inate?.................. 71
What Will You See After an Airbag
Inates?................................................. 72
When Should an Airbag Inate?................. 70
Where Are the Airbags?............................. 67Antenna, Backglass..................................... 280
Antenna, XM™ Satellite Radio Antenna
System.................................................... 281
Anti-Lock Brake System (ABS).................... 289
Anti-Lock Brake, System Warning Light....... 177
Appearance Care
Aluminum Wheels.................................... 454
Care of Safety Belts................................ 452
Chemical Paint Spotting........................... 456
Cleaning Exterior Lamps/Lenses.............. 453
Cleaning the Inside of Your Vehicle.......... 448
Fabric/Carpet........................................... 449
Finish Care.............................................. 453
Finish Damage......................................... 456
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 452
Leather.................................................... 451
Sheet Metal Damage............................... 455
Tires........................................................ 455
Ultra Lux Suede....................................... 451
Underbody Maintenance........................... 456
Vehicle Care/Appearance Materials.......... 457
Washing Your Vehicle .............................. 453
Weatherstrips........................................... 452
Windshield and Wiper Blades................... 454
Ashtray(s).................................................... 157
Assist Handles............................................ 127
513

Audio System(s).......................................... 233
Audio Steering Wheel Controls................. 277
Backglass Antenna................................... 280
Care of Your CD Player........................... 279
Care of Your CDs.................................... 279
Chime Level Adjustment........................... 281
Radio with CD................................235, 245
Radio with Six-Disc CD............................ 255
Setting the Time...................................... 234
Theft-Deterrent Feature............................ 277
Understanding Radio Reception............... 278
XM™ Satellite Radio Antenna System...... 281
Automatic Transaxle
Fluid........................................................ 357
Operation................................................. 110
B
Backglass Antenna...................................... 280
Battery........................................................ 381
Electric Power Management..................... 150
Exterior Lighting Battery Saver................. 146
Run-Down Protection............................... 151
Before Leaving on a Long Trip.................... 308Brake
Anti-Lock Brake System (ABS)................. 289
Emergencies............................................ 291
Parking.................................................... 115
System Warning Light.............................. 176
Brakes........................................................ 378
Braking....................................................... 288
Braking in Emergencies............................... 291
Break-In, New Vehicle................................. 105
Bulb Replacement....................................... 391
Back-Up Lamps....................................... 397
Front Turn Signal, Parking and
Fog Lamps........................................... 394
Halogen Bulbs......................................... 391
Headlamp Aiming..................................... 388
License Plate Lamps................................ 398
Replacement Bulbs.................................. 398
Taillamps, Turn Signal, and Stoplamps..... 395
Buying New Tires........................................ 416
C
Calibration................................................... 198
California Fuel............................................. 340
California Proposition 65 Warning................ 337
Canadian Owners........................................... 3
Capacities and Specications...................... 466
514

Coolant
Engine Temperature Gage........................ 180
Engine Temperature Warning Light........... 179
Heater, Engine......................................... 108
Cooling System........................................... 366
Courtesy Lamps.......................................... 147
Cruise Control............................................. 140
Cruise Control Light.................................... 185
Cupholder(s)................................................ 126
Customer Assistance Information
Courtesy Transportation........................... 501
Customer Assistance for Text Telephone
(TTY) Users.......................................... 496
Customer Assistance Offices.................... 496
Customer Satisfaction Procedure.............. 492
GM Mobility Reimbursement Program...... 497
Reporting Safety Defects to
General Motors..................................... 510
Reporting Safety Defects to the
Canadian Government.......................... 510
Reporting Safety Defects to the
United States Government.................... 510
Roadside Assistance Program.................. 498
Service Publications Ordering
Information........................................... 511D
Daytime Running Lamps............................. 145
Defensive Driving........................................ 284
Delayed Entry Lighting................................ 148
Delayed Exit Lighting................................... 149
Delayed Locking............................................ 94
DIC Compass.............................................. 198
Disc, MP3................................................... 269
Doing Your Own Service Work.................... 337
Dome Lamp................................................ 147
Door
Delayed Locking........................................ 94
Locks......................................................... 92
Power Door Locks..................................... 94
Programmable Automatic Door Locks......... 95
Rear Door Security Locks.......................... 95
Driver
Position, Safety Belt................................... 22
Driver Information Center (DIC)................... 186
DIC Controls and Displays..............186, 190
DIC Vehicle Customization....................... 226
DIC Warnings and Messages................... 200
516

Driving
At Night................................................... 302
City.......................................................... 306
Defensive................................................. 284
Drunken................................................... 285
Freeway................................................... 307
Hill and Mountain Roads.......................... 309
In Rain and on Wet Roads...................... 303
Rocking Your Vehicle to Get it Out.......... 316
Winter...................................................... 311
Dual Automatic Climate Control System....... 162
E
Electric Power Management........................ 150
Electrical System
Add-On Equipment................................... 459
Fuses and Circuit Breakers...................... 460
Headlamp Wiring..................................... 459
Instrument Panel Fuse Block................... 460
Power Windows and Other Power
Options................................................. 459
Underhood Fuse Block............................. 462
Windshield Wiper Fuses........................... 459Engine
Air Cleaner/Filter...................................... 355
Battery..................................................... 381
Check and Service Engine Soon Light..... 180
Coolant.................................................... 360
Coolant Heater......................................... 108
Coolant Temperature Gage...................... 180
Coolant Temperature Warning Light.......... 179
Drive Belt Routing.................................... 485
Engine Compartment Overview ................ 346
Exhaust................................................... 119
Oil ........................................................... 350
Oil Life System........................................ 353
Overheated Protection Operating Mode.... 366
Overheating............................................. 364
Starting.................................................... 107
Supercharger Oil...................................... 355
Enhanced Traction System (ETS) ................ 293
Warning Light........................................... 179
Entry Lighting.............................................. 148
Event Data Recorders (EDR)...................... 504
Extender, Safety Belt..................................... 38
Exterior Lamps............................................ 144
Exterior Lighting Battery Saver.................... 146
517

F
Filter
Engine Air Cleaner................................... 355
Finish Damage............................................ 456
Flashers, Hazard Warning........................... 134
Flash-to-Pass.............................................. 137
Flat Tire...................................................... 422
Flat Tire, Changing...................................... 435
Flat Tire, Storing......................................... 445
Fluid
Automatic Transaxle................................. 357
Power Steering........................................ 376
Windshield Washer.................................. 377
Fog Lamp Light........................................... 185
Fog Lamps.................................................. 146
Folding Rear Seat......................................... 16
Folding Seatback, Passenger........................ 14
Front Reading Lamps.................................. 149
Front Seat Storage Net............................... 127
Fuel............................................................ 338
Additives.................................................. 340
California Fuel.......................................... 340
Filling a Portable Fuel Container.............. 344
Filling Your Tank...................................... 342Fuel (cont.)
Fuels in Foreign Countries....................... 341
Gage....................................................... 185
Gasoline Octane...................................... 338
Gasoline Specications............................ 339
Fuses
Fuses and Circuit Breakers...................... 460
Instrument Panel Fuse Block................... 460
Underhood Fuse Block............................. 462
Windshield Wiper..................................... 459
G
Gage
Engine Coolant Temperature.................... 180
Fuel......................................................... 185
Speedometer........................................... 170
Tachometer.............................................. 171
Gasoline
Octane..................................................... 338
Specications........................................... 339
Glove Box................................................... 126
GM Mobility Reimbursement Program.......... 497
518