2004 PONTIAC GRAND PRIX traction control

Buying New Tires
To ®nd out what kind and size of tires you need, look at
the Tire-Loading Information label.
The tires installed on your vehicle when it was new had
a Tire Performance Criteria Speci®cation (TPC Spec)
number on each tire's sidewall. When you get new tires,
get ones with that same TPC Spec number. That way
your vehicle will continue to have tires that are designed
to give proper endurance, handling, speed rating,
traction, ride and other things during normal service on
your vehicle. If your tires have an all-season tread
design, the TPC number will be followed by an ªMSº
(for mud and snow).
If you ever replace your tires with those not having a
TPC Spec number, make sure they are the same size,
load range, speed rating and construction type (bias,
bias-belted or radial) as your original tires.{CAUTION:
Mixing tires could cause you to lose control
while driving. If you mix tires of different sizes
or types (radial and bias-belted tires), the
vehicle may not handle properly, and you
could have a crash. Using tires of different
sizes may also cause damage to your vehicle.
Be sure to use the same size and type tires on
all wheels. It's all right to drive with your
compact spare temporarily, it was developed
for use on your vehicle. See ªCompact Spare
Tireº in the index.
{CAUTION:
If you use bias-ply tires on your vehicle, the
wheel rim ¯anges could develop cracks after
many miles of driving. A tire and/or wheel
could fail suddenly, causing a crash. Use only
radial-ply tires with the wheels on your vehicle.
5-73

Uniform Tire Quality Grading
Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration, which grades tires by
treadwear, traction and temperature performance. (This
applies only to vehicles sold in the United States.)
The grades are molded on the sidewalls of most
passenger car tires. The Uniform Tire Quality Grading
system does not apply to deep tread, winter-type
snow tires, space-saver or temporary use spare tires,
tires with nominal rim diameters of 10 to 12 inches
(25 to 30 cm), or to some limited-production tires.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to federal safety
requirements and additional General Motors Tire
Performance Criteria (TPC) standards.
Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a speci®ed government test course.
For example, a tire graded 150 would wear one and
a half (1.5) times as well on the government course as
a tire graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signi®cantly from the norm
due to variations in driving habits, service practices and
differences in road characteristics and climate.
Traction ± AA, A, B, C
The traction grades, from highest to lowest, are AA, A,
B, and C. Those grades represent the tire's ability
to stop on wet pavement as measured under controlled
conditions on speci®ed government test surfaces of
asphalt and concrete. A tire marked C may have poor
traction performance. Warning: The traction grade
assigned to this tire is based on straight-ahead braking
traction tests, and does not include acceleration,
cornering, hydroplaning, or peak traction characteristics.
5-74

Tire Chains
{CAUTION:
If your vehicle has P225/55R17 size tires, don't
use tire chains, there's not enough clearance.
Tire chains used on a vehicle without the
proper amount of clearance can cause damage
to the brakes, suspension or other vehicle
parts. The area damaged by the tire chains
could cause you to lose control of your vehicle
and you or others may be injured in a crash.
Use another type of traction device only if its
manufacturer recommends it for use on your
vehicle and tire size combination and road
conditions. Follow that manufacturer's
instructions. To help avoid damage to your
CAUTION: (Continued)
CAUTION: (Continued)
vehicle, drive slowly, readjust or remove the
device if it's contacting your vehicle, and don't
spin your wheels.
If you do ®nd traction devices that will ®t,
install them on the front tires.
Notice:If your vehicle does not have P225/55R17
size tires, use tire chains only where legal and
only when you must. Use only SAE Class²S²type
chains that are the proper size for your tires.
Install them on the front tires and tighten them as
tightly as possible with the ends securely fastened.
Drive slowly and follow the chain manufacturer's
instructions. If you can hear the chains contacting
your vehicle, stop and retighten them. If the contact
continues, slow down until it stops. Driving too
fast or spinning the wheels with chains on will
damage your vehicle.
5-77

E
Electrical System
Add-On Equipment......................................5-99
Fuses and Circuit Breakers...........................5-99
Headlamp Wiring.........................................5-99
Power Windows and Other Power Options......5-99
Windshield Wiper Fuses...............................5-99
Emergency Trunk Release Handle.....................2-11
Emissions Inspection and
Maintenance Programs.................................3-42
Engine
Air Cleaner/Filter.........................................5-22
Battery.......................................................5-48
Check and Service Engine Soon Light............3-40
Coolant Heater............................................2-20
Coolant Temperature Gage...........................3-39
Coolant Temperature Warning Light................3-39
Coolant......................................................5-26
Cooling System Inspection............................6-15
Engine Compartment Overview......................5-12
Exhaust.....................................................2-31
Oil .............................................................5-16
Overheating................................................5-29
Starting......................................................2-19
Supercharger Oil.........................................5-21
Engine Coolant Level Check.............................6-10
Engine Cooling When Trailer Towing..................4-44
Engine Oil Additives........................................5-19Engine Oil Level Check...................................6-10
Engine Oil Scheduled Maintenance..................... 6-5
Enhanced Traction System (ETS)......................4-11
Warning Light.............................................3-38
Entry Lighting.................................................3-17
Express-Down Window....................................2-13
Extender, Safety Belt.......................................1-28
Exterior Lamp Control Lever.............................3-12
Exterior Lamps...............................................3-12
Exterior Lighting Battery Saver..........................3-16
F
Fan ..............................................................3-25
Filter
Engine Air Cleaner......................................5-22
Finding a PTY Station
(RDS and XMŸ).....................3-93, 3-104, 3-118
Finding a Station.........................3-91, 3-102, 3-116
Finish Care....................................................5-94
Finish Damage...............................................5-95
Flash-To-Pass Feature.....................................3-14
Flat Tire........................................................5-78
Flat Tire, Changing.........................................5-78
Fluid
Automatic Transaxle.....................................5-24
Power Steering...........................................5-42
Windshield Washer......................................5-43
FM Stereo....................................................3-130
Fog Lamp Light..............................................3-44
5

L
Lamps
Exterior......................................................3-12
Interior.......................................................3-16
Lap-Shoulder Belt...................................1-15, 1-24
Last Door Closed Locking.................................. 2-8
LATCH System
Child Restraints...........................................1-41
Securing a Child Restraint Designed for
the LATCH System...................................1-43
Leaving Your Vehicle......................................... 2-9
Leaving Your Vehicle With the
Engine Running..........................................2-29
LEFT FRONT TURN LAMP OUT......................3-74
LEFT REAR TURN LAMP OUT........................3-74
Light
Air Bag Readiness.......................................3-34
Anti-Lock Brake System Warning...................3-37
Brake System Warning.................................3-36
Engine Coolant Temperature Warning.............3-39
Enhanced Traction System (ETS)
Warning Light..........................................3-38
Fog Lamp..................................................3-44
Highbeam On.............................................3-44
Malfunction Indicator....................................3-40
Oil Pressure...............................................3-43
Safety Belt Reminder...................................3-34
TCS Warning Light......................................3-38Light (cont.)
Traction Control System (TCS) Warning..........3-38
Up-Shift.....................................................3-35
Loading Your Vehicle.......................................4-35
Lockout Protection............................................ 2-9
Locks
Door........................................................... 2-7
Last Door Closed Locking.............................. 2-8
Leaving Your Vehicle..................................... 2-9
Lockout Protection......................................... 2-9
Power Door.................................................. 2-8
Programmable Automatic Door Locks............... 2-9
Loss of Control...............................................4-18
LOW BRAKE FLUID.......................................3-75
LOW FUEL....................................................3-75
LOW OIL LEVEL............................................3-76
LOW OIL PRESSURE.....................................3-76
LOW WASHER FLUID.....................................3-77
Lumbar
Power Controls............................................. 1-5
M
Maintenance, Normal Replacement Parts..........5-105
Maintenance Schedule
At Each Fuel Fill.........................................6-10
At Least Once a Month................................6-10
At Least Once a Year..................................6-11
At Least Twice a Year..................................6-11
8

Throttle System Inspection...............................6-15
Tilt Wheel........................................................ 3-5
Tire In¯ation Check.........................................6-10
Tires.............................................................5-68
Buying New Tires........................................5-73
Chains.......................................................5-77
Changing a Flat Tire....................................5-78
Compact Spare Tire.....................................5-89
If a Tire Goes Flat.......................................5-78
In¯ation -- Tire Pressure...............................5-69
Inspection and Rotation................................5-71
Pressure Monitor System..............................5-70
Uniform Tire Quality Grading.........................5-74
Wheel Alignment and Tire Balance.................5-75
Wheel Replacement.....................................5-75
When It Is Time for New Tires......................5-72
To Use the Engine Coolant Heater....................2-21
Top Strap......................................................1-39
Top Strap Anchor Location...............................1-40
Torque Lock...................................................2-29
Total Weight on Your Vehicle's Tires..................4-39
Towing
Recreational Vehicle.....................................4-33
Towing a Trailer..........................................4-37
Your Vehicle...............................................4-33
Traction
Control System (TCS)..................................4-10
Control System Warning Light.......................3-38
Enhanced Traction System (ETS)...................4-11Traction (cont.)
Enhanced Traction System (ETS)
Warning Light..........................................3-38
Stabilitrak
ž& Plus System.............................4-13
TRACTION CONTROL ACTIVE.........................3-87
TRACTION CONTROL OFF.............................3-87
Trailer Brakes.................................................4-40
Transaxle
Fluid, Automatic...........................................5-24
Transaxle Operation, Automatic.........................2-22
Transmission
Up-Shift Light..............................................3-35
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10
Transportation Options...................................... 7-8
Trunk............................................................2-10
Trunk Assist Handle........................................2-11
Trunk Lock....................................................2-10
Turn and Lane-Change Signals.........................3-14
TURN SIGNAL ON.........................................3-87
Turn Signals When Towing a Trailer..................4-42
U
Underbody Flushing Service.............................6-13
Underhood Fuse Block...................................5-102
Understanding Radio Reception.......................3-130
Uniform Tire Quality Grading............................5-74
14