2008 PONTIAC GRAND PRIX fuel

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-9
Safety Belts
.............................................1-10
Child Restraints
.......................................1-29
Airbag System
.........................................1-52
Restraint System Check
............................1-66
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
......................................2-10
Windows
.................................................2-16
Theft-Deterrent Systems
............................2-18
Starting and Operating Your Vehicle
...........2-23
Mirrors
....................................................2-38
OnStar
®System
......................................2-40
Storage Areas
.........................................2-43
Sunroof
..................................................2-44
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-28
Warning Lights, Gages, and Indicators
........3-38
Driver Information Center (DIC)
..................3-55
Audio System(s)
.......................................3-94Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-27
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
Headlamp Aiming
.....................................5-51
Bulb Replacement
....................................5-54
Windshield Replacement
...........................5-61
Windshield Wiper Blade Replacement
.........5-61
Tires
......................................................5-62
Appearance Care
...................................5-109
Vehicle Identication
...............................5-119
Electrical System
....................................5-120
Capacities and Specications
...................5-128
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-14
Vehicle Data Recording and Privacy
...........7-16
Index................................................................ 1
2008 Pontiac Grand Prix Owner ManualM

Keys...............................................................2-2
Remote Keyless Entry (RKE) System................2-3
Remote Keyless Entry (RKE) System
Operation...................................................2-4
Remote Vehicle Start......................................2-7
Doors and Locks............................................2-10
Door Locks..................................................2-10
Power Door Locks........................................2-11
Delayed Locking...........................................2-11
Programmable Automatic Door Locks................2-12
Rear Door Security Locks..............................2-12
Lockout Protection........................................2-13
Trunk..........................................................2-14
Windows........................................................2-16
Power Windows............................................2-17
Sun Visors...................................................2-18
Theft-Deterrent Systems..................................2-18
Content Theft-Deterrent.................................2-18
PASS-Key
®III Electronic Immobilizer...............2-20
PASS-Key®III Electronic Immobilizer
Operation.................................................2-21
Starting and Operating Your Vehicle................2-23
New Vehicle Break-In....................................2-23
Ignition Positions..........................................2-23Retained Accessory Power (RAP)...................2-24
Starting the Engine.......................................2-25
Engine Coolant Heater..................................2-26
Active Fuel Management™.............................2-28
Automatic Transmission Operation...................2-28
Parking Brake..............................................2-33
Shifting Into PARK (P)...................................2-34
Shifting Out of PARK (P)...............................2-35
Parking Over Things That Burn.......................2-36
Engine Exhaust............................................2-36
Running the Vehicle While Parked..................2-37
Mirrors...........................................................2-38
Manual Rearview Mirror.................................2-38
Manual Rearview Mirror with OnStar
®..............2-38
Outside Power Mirrors...................................2-39
Outside Convex Mirror...................................2-39
OnStar
®System.............................................2-40
Storage Areas................................................2-43
Glove Box...................................................2-43
Cupholder(s)................................................2-43
Sunglasses Storage Compartment...................2-44
Center Console Storage.................................2-44
Convenience Net..........................................2-44
Sunroof.........................................................2-44
Section 2 Features and Controls
2-1

Remote Vehicle Start
Your vehicle may have a remote starting feature that
allows you to start the engine from outside the vehicle.
It may also start the vehicle’s heating or air conditioning
systems and rear window defogger. When the remote
start system is active and the vehicle has an automatic
climate control system, it will automatically regulate
the inside temperature. Normal operation of these
systems will return after the ignition key is turned to
ON/RUN.
Laws in some communities may restrict the use of
remote starters. For example, some laws may require
a person using remote start to have the vehicle in
view when doing so. Check local regulations for
any requirements on remote starting of vehicles.
Do not use the remote start feature if your vehicle is
low on fuel. Your vehicle may run out of fuel.
If your vehicle has the remote start feature, the RKE
transmitter functions will have an increased range
of operation. However, the range may be less while
the vehicle is running.There are other conditions which can affect the
performance of the transmitter, seeRemote Keyless
Entry (RKE) System on page 2-3for additional
information.
/(Remote Start):This button will be on the RKE
transmitter if you have remote start.
To start the vehicle using the remote start feature:
1. Aim the transmitter at the vehicle.
2. Press and release the transmitter’s lock button, then
immediately press and hold the transmitter’s remote
start button for about four seconds or until the
vehicle’s turn signal lamps ash. The doors will lock.
When the vehicle starts, the parking lamps turn on
and remain on while the engine is running, and
the DIC will display REMOTE START ACTIVE
PRESS HAZARD SWITCH TO CANCEL.
The remote start feature provides two separate starts
per ignition cycle, each with 10 minutes of engine running
time, or one start with a time extension. The rst start
must expire or be canceled to get two separate
10 minute starts.
2-7

Your vehicle may have
a red light located on top
of the instrument panel,
toward the center of
the vehicle and near
the windshield, that will
ash slowly when the
system is armed.
The theft-deterrent alarm system needs to be
activated through the Driver’s Information Center (DIC).
See “Theft Deterrent” under the Personal Programming
Mode Screens inDIC Vehicle Customization on
page 3-89. While armed, the doors will not unlock with
the power door lock switch. The remote alarm will
sound if someone tampers with the trunk or enters
the vehicle without using the Remote Keyless
Entry (RKE) transmitter or key to unlock the doors.
The horn will sound and the headlamps will ash for
up to two minutes. The system will also cut off the fuel
supply, preventing the vehicle from being driven.Arming with the Power Lock Switch
The vehicle’s content theft-deterrent alarm system
can be activated when the key is removed from
the ignition and the power door lock switch of either
the driver’s or front passenger’s door is used to lock
the vehicle. The door needs to be in the open
position when pressing the power door lock switch.
The alarm system will not activate if the door is
closed and the power door lock switch is pressed.
This system can be activated through the Driver’s
Information Center (DIC). See “Lock Switch Arm”
under the Personal Programming Mode Screens in
DIC Vehicle Customization on page 3-89.
When the doors are locked using the power door
lock switch of either front door, the red light, if your
vehicle has one, will start ashing indicating that
the system is arming. After all the doors are closed
there will be a time delay and then the red light,
if your vehicle has one, will begin to ash at a very
slow rate indicating the system is armed.
2-19

This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modications to this system by other than
an authorized service facility could void authorization
to use this equipment.
PASS-Key III uses a radio frequency transponder in
the key that matches a decoder in your vehicle.
PASS-Key®III Electronic
Immobilizer Operation
The vehicle is equipped with PASS-Key®III
(Personalized Automotive Security System)
theft-deterrent system. PASS-Key
®III is a passive
theft-deterrent system.
The system is automatically armed when the
key is removed from the ignition.You do not have to manually arm or disarm the system.
The security light will come on if there is a problem
with arming or disarming the theft-deterrent system.
PASS-Key
®III uses a transponder in the ignition
key that matches a decoder in the vehicle.
When the PASS-Key
®III system senses that the wrong
key has been inserted into the ignition, it shuts down the
vehicle’s starter and fuel systems. The starter will not
work and fuel will stop owing to the engine. If someone
tries to start the vehicle again with the wrong key, the
vehicle will not start. Anyone using a trial-and-error
method to start the vehicle will be discouraged to do so
because of the high number of electrical key codes.
When trying to start the vehicle, if the engine does not
start and the STARTING DISABLED DUE TO THEFT
SYSTEM warning message on the Driver Information
Center (DIC) comes on, there may be a problem
with your theft-deterrent system. Turn the ignition off
and try again.
If the engine still does not start, and the key appears to
be undamaged, try another ignition key. At this time,
you may also want to check the fuse. SeeFuses and
Circuit Breakers on page 5-121. If the engine still does
not start with the other key, the vehicle needs service.
2-21

2. If the engine does not start after 5-10 seconds,
especially in very cold weather (below 0°F or−18°C),
it could be ooded with too much gasoline. Try
pushing the accelerator pedal all the way to the oor
and holding it there as you hold the key in START
for up to a maximum of 15 seconds. Wait at least
15 seconds between each try, to allow the cranking
motor to cool down. When the engine starts, let go
of the key and accelerator. If the vehicle starts
briey but then stops again, do the same thing.
This clears the extra gasoline from the engine.
Do not race the engine immediately after starting it.
Operate the engine and transmission gently until
the oil warms up and lubricates all moving parts.
Notice:The engine is designed to work with the
electronics in your vehicle. If you add electrical parts
or accessories, you could change the way the engine
operates. Before adding electrical equipment, check
with your dealer/retailer. If you do not, your engine
might not perform properly. Any resulting damage
would not be covered by your vehicle’s warranty.Engine Coolant Heater
The engine coolant heater, if available, can help in
cold weather conditions at or below 0°F (−18°C)
for easier starting and better fuel economy during
engine warm-up. Plug in the coolant heater at least
four hours before starting your vehicle. An internal
thermostat in the plug-end of the cord may exist
which will prevent engine coolant heater operation
at temperatures above 0°F (−18°C).
2-26

Active Fuel Management™
Your vehicle’s engine may be equipped with Active
Fuel Management™. This system allows the engine
to operate on either all or half of its cylinders,
depending on your driving conditions.
When less power is required, such as cruising at a
constant vehicle speed, the system will operate in
the half cylinder mode, allowing your vehicle to
achieve better fuel economy. When greater power
demands are required, such as accelerating from
a stop, passing, or merging onto a freeway, the
system will maintain full-cylinder operation.
Automatic Transmission Operation
The shift lever for the automatic transmission is
located on the console between the seats.
Maximum engine speed is limited when the vehicle
is in PARK (P) or NEUTRAL (N) to protect driveline
components from improper operation.
There are several
different positions
for the shift lever.
PARK (P):This position locks the front wheels.
It is the best position to use when the engine is
started because the vehicle cannot move easily.3800 V6 Engine
2-28

NEUTRAL (N):In this position, the engine does not
connect with the wheels. To restart when the vehicle
is already moving, use NEUTRAL (N) only. Also,
use NEUTRAL (N) when the vehicle is being towed.
{CAUTION:
Shifting into a drive gear while the engine is
running at high speed is dangerous. Unless
your foot is rmly on the brake pedal, your
vehicle could move very rapidly. You could
lose control and hit people or objects. Do not
shift into a drive gear while your engine is
running at high speed.
Notice:Shifting out of PARK (P) or NEUTRAL (N)
with the engine running at high speed may
damage the transmission. The repairs would
not be covered by your warranty. Be sure the
engine is not running at high speed when
shifting your vehicle.DRIVE (D):This position is for normal driving.
It provides the best fuel economy for your vehicle.
If the vehicle needs more power for passing, and it is:
Going less than 35 mph (55 km/h),
push the accelerator pedal about halfway down.
Going about 35 mph (55 km/h) or more,
push the accelerator pedal all the way down.
The vehicle will shift down to the next gear
and have more power.
Downshifting the transmission in slippery road conditions
could result in skidding, see Skidding underLoss of
Control on page 4-12.
Notice:If your vehicle seems to start up rather
slowly or not shift gears when you go faster, and
you continue to drive your vehicle that way, you
could damage the transmission. Have your vehicle
serviced right away. You can drive in SECOND (2)
when you are driving less than 35 mph (55 km/h)
and DRIVE (D) for higher speeds until then.
THIRD (3):This position is also used for normal driving.
However, it reduces vehicle speed more than DRIVE (D)
without using your brakes. You might choose THIRD (3)
instead of DRIVE (D) when driving on hilly, winding
roads, when towing a trailer, so there is less shifting
between gears, when going down a steep hill and when
driving on non-highway scenarios (i.e. city streets etc.).
2-30