2008 PONTIAC G8 towing

Seats and Restraints......... 1-1
Front Seats
.................... 1-2
Rear Seats
.................... 1-5
Safety Belts
................... 1-5
Airbag System
..............1-19
Child Restraints
.............1-32
Keys, Doors and
Windows............................ 2-1
Keys
............................. 2-2
Doors and Locks
............ 2-8
Theft-Deterrent
Systems
...................2-11
Windows
......................2-14
Mirrors
.........................2-16
Sunroof
........................2-18
Storage.............................. 3-1
Storage
......................... 3-1
Instruments and
Controls............................. 4-1
Instrument Panel
Overview
.................... 4-2
Warning Lights, Gages,
and Indicators
............4-10Driver Information
Center (DIC)
.............4-23
OnStar
®System
............4-36
Lighting............................. 5-1
Lighting
......................... 5-1
Infotainment...................... 6-1
Audio System(s)
............. 6-1
Climate Controls............... 7-1
Climate Controls
............. 7-1
Driving and Operating....... 8-1
Starting and Operating Your
Vehicle
....................... 8-2
Driving Your Vehicle
......8-13
Fuel
............................8-32
Vehicle Service
and Care............................ 9-1
Service
.......................... 9-2
Owner Checks
................ 9-5
Headlamp Aiming
..........9-27
Bulb Replacement
.........9-29Electrical System
...........9-32
Tires
...........................9-39
Tire Changing
...............9-62
Jump Starting
...............9-80
Towing
........................9-84
Appearance Care
..........9-91
Technical Data.................10-1
Vehicle Identication
. . . . . . 10-1
Capacities and
Specications
............10-2
Service and
Maintenance.....................11-1
Service and
Maintenance
..............11-1
Customer Information. . . . . . 12-1
Customer Information
. . . . . 12-1
Reporting Safety
Defects
...................12-14
Vehicle Data Recording
and Privacy
.............12-16
Index................................... i-1
2008 Pontiac G8 Owner ManualM
2008 - Pontiac G8 Owner Manual

{CAUTION
If the airbag readiness light in
the instrument panel cluster
ever comes on and stays on, it
means that something may be
wrong with the airbag system.
If this ever happens, have the
vehicle serviced promptly,
because an adult-size person
sitting in the right front
passenger’s seat may not have
the protection of the airbag(s).
SeeAirbag Readiness Light on
page 4-13for more on this,
including important safety
information.A thick layer of additional material,
such as a blanket or cushion, or
aftermarket equipment such as seat
covers, seat heaters, and seat
massagers can affect how well the
passenger sensing system
operates. We recommend that you
not use seat covers or other
aftermarket equipment other than
any that GM has approved for your
specic vehicle. SeeAdding
Equipment to Your Airbag-Equipped
Vehicle on page 1-30for more
information about modications
that can affect how the system
operates.The passenger sensing system may
suppress the airbag deployment
when liquid soaks into the seat.
If this happens, the off indicator in
the passenger airbag status
indicator and the airbag readiness
light on the instrument panel
will be lit. The system should
resume normal operation after the
seat is allowed to dry. If the
system operates incorrectly after
the seat has dried, have your
dealer/retailer check the system.
{CAUTION
Stowing of articles under the
passenger seat or between the
passenger seat cushion and
seatback may interfere with the
proper operation of the
passenger sensing system.
Seats and Restraints 1-29
2008 - Pontiac G8 Owner Manual

Driving while this light is on could
drain your battery.
If you must drive a short distance
with the light on, be sure to turn off
all accessories, such as the radio
and air conditioner.
The Alternator message will remain
until
3(Trip/Fuel) or8(Enter)
are pressed, but the light will remain
until the problem is xed. See
DIC Warnings and Messages on
page 4-27for more information.
Brake System Warning
Light
Your vehicle’s hydraulic brake
system is divided into two parts. If
one part is not working, the
other part can still work and stop
you. For good braking, though, you
need both parts working well.
If the warning light comes on, there
is a brake problem. Have your
brake system inspected right away.If your vehicle has anti-lock brakes,
this light should come on when
you turn the key to START. If it does
not come on, have it xed so it
will be ready to warn you if there is
a problem.
When the ignition is on, the brake
system warning light will also
come on when you set your parking
brake. The light will stay on if
your parking brake does not release
fully. If it stays on after your
parking brake is fully released, it
means you have a brake problem.
If the light comes on and Brake
message comes on the Driver
Information Center (DIC), while you
are driving, pull off the road and
stop carefully. You may notice that
the pedal is harder to push or
the pedal may go closer to the oor.It may take longer to stop. If the
light is still on, have the vehicle
towed for service. SeeAntilock
Brake System (ABS) Warning Light
on page 4-17andTowing Your
Vehicle on page 9-84.
{CAUTION
Your brake system may not be
working properly if the brake
system warning light is on.
Driving with the brake system
warning light on can lead to an
accident. If the light is still on
after you have pulled off the
road and stopped carefully,
have the vehicle towed for
service.
The Brake message will remain until
3(Trip/Fuel) or8(Enter) are
pressed, but the brake light will
remain until the problem is xed. See
DIC Warnings and Messages on
page 4-27for more information. United States
Canada
4-16 Instruments and Controls
2008 - Pontiac G8 Owner Manual

Antilock Brake System
(ABS) Warning Light
For vehicles with the Antilock Brake
System (ABS), this light will come
on briey, as a check, when
you start your vehicle.
If it does not, have your vehicle
serviced so that the light works
properly when it needs to.
If the light and a message in the
DIC stays on longer than a few
seconds after you start your engine,
or comes on and stays on while
you are driving, try resetting
the system. To reset the system:
1. If you are driving, pull over when
it is safe to do so.
2. Place the vehicle in PARK (P).
3. Turn off the ignition.
4. Then restart the engine.If the light remains on after resetting
the system or comes on again
while driving, your vehicle needs
service. If the ABS light is on,
but the regular brake system
warning light is not on, the antilock
brakes are not working properly,
but the regular brakes are still
functioning. Have your vehicle
serviced right away. If both brake
lights are on, you do not have
antilock brakes, and there’s a
problem with your regular brakes as
well. Have your vehicle towed for
service. SeeTowing Your Vehicle
on page 9-84.
The ABS Fault message will remain
until
3(Trip/Fuel) or8(Enter)
are pressed, but the warning
light will remain until the problem is
xed. SeeDIC Warnings and
Messages on page 4-27for more
information.
Engine Coolant
Temperature Gage
This gage shows the engine coolant
temperature. If the gage pointer
moves into the red area, the engine
is too hot. It means that the engine
has overheated. Pull off the road,
stop the vehicle, and turn off the
engine as soon as possible. See
Engine Overheating on page 9-16.
Instruments and Controls 4-17
2008 - Pontiac G8 Owner Manual

Malfunctions often are indicated by
the system before any problem
is apparent. Heeding the light can
prevent more serious damage
to your vehicle. This system assists
your service technician in correctly
diagnosing any malfunction.
Notice:If you keep driving your
vehicle with this light on, after
a while, the emission controls
might not work as well, your
vehicle’s fuel economy might not
be as good, and the engine
might not run as smoothly. This
could lead to costly repairs
that might not be covered by your
warranty.
Notice:Modications made to
the engine, transmission, exhaust,
intake, or fuel system of your
vehicle or the replacement of the
original tires with other than those
of the same Tire Performance
Criteria (TPC) can affect your
vehicle’s emission controls and
can cause this light to come on.
Modications to these systemscould lead to costly repairs not
covered by your warranty. This
could also result in a failure to
pass a required Emission
Inspection/Maintenance test.
SeeAccessories and
Modifications on page 9-3.
This light comes on during a
malfunction in one of two ways:
Light Flashing:A misre condition
has been detected. A misre
increases vehicle emissions and
could damage the emission control
system on your vehicle. Diagnosis
and service might be required.
The following can prevent more
serious damage to your vehicle:
Reduce vehicle speed.
Avoid hard accelerations.
Avoid steep uphill grades.
If you are towing a trailer, reduce
the amount of cargo being
hauled as soon as it is possible.If the light continues to ash, when
it is safe to do so, stop the
vehicle. Find a safe place to park
the vehicle. Turn the key off, wait at
least 10 seconds, and restart the
engine. If the light is still ashing,
follow the previous steps and
see your dealer/retailer for service
as soon as possible.
Light On Steady:An emission
control system malfunction has been
detected on your vehicle. Diagnosis
and service might be required.
You might be able to correct the
emission system malfunction
by considering the following:
Make sure the fuel cap is fully
installed. SeeFilling the Tank
on page 8-35. The diagnostic
system can determine if the fuel
cap has been left off or
improperly installed. A loose or
missing fuel cap allows fuel
to evaporate into the atmosphere.
A few driving trips with the cap
properly installed should turn
the light off.
Instruments and Controls 4-19
2008 - Pontiac G8 Owner Manual

{Alarm Activated
This message is displayed when the
content theft-deterrent system
was activated by an attempted
break-in. The messages may also
include the location on the
vehicle where the break-in was
attempted. SeeContent
Theft-Deterrent on page 2-13for
more information.
"Alternator
This message is displayed if there is
a problem with the battery charging
system. The charging system
light may also come on in the
instrument panel cluster. See
Charging System Light on
page 4-15. Driving while this
message is on could drain the
battery. Turn off all unnecessary
accessories. Have the electrical
system checked as soon as
possible. See your dealer/retailer.
Battery Saver Mode On
This message is displayed when the
battery voltage level is low.
$Brake
This message is displayed if there is
a problem with the brake system.
The Brake System Warning
light may also come on in the
instrument panel cluster. SeeBrake
System Warning Light on
page 4-16. When this message is
on, stop the vehicle on the side
of the road. Do not continue driving
until you know that braking is
possible or that the cause of the
problem has been corrected,
see your dealer/retailer. This
message also indicates low brake
uid. Check the brake uid level.
SeeBrakes on page 9-24.
*Check Engine
If this message and the Malfunction
Indicator Lamp come on and
stay on when driving, the system
may require servicing. Although the
vehicle may still be drivable and
not require towing, take the vehicle
to your dealer/retailer as soon
as possible. If this message comes
on when the Malfunction Indicator
Lamp is ashing, reduce the
vehicle’s speed and load until the
lamp stops ashing, then take
the vehicle to your dealer/retailer as
soon as possible. SeeMalfunction
Indicator Lamp on page 4-18
for more information.
:Check Oil
This message is displayed if the oil
pressure or oil level is low. Stop
when safe, turn off the engine and
check the engine oil level. See
Engine Oil on page 9-8. Do not run
the engine when this warning is
4-28 Instruments and Controls
2008 - Pontiac G8 Owner Manual

Select from the following modes:
0(Vent):Air is directed to the
instrument panel outlets.
1(Bi-Level):Air is divided
between the instrument panel
outlets and the oor outlets. Cooler
air is directed to the upper outlets
and warmer air to the oor outlets.
d(Floor):Air is directed to
the oor outlets with some air
directed to the outer instrument
panel, windshield and side window
outlets.
4(Defog):Air is directed to the
windshield, oor and side window
outlets. Use this mode to clear
the windows of fog or moisture and
warm the passengers.
5(Defrost):Press to turn the
defrost on or off. The
5indicator
appears in the display. A portion of
the air is directed to the windshield,
with some air directed to the side
window vents.When defrost is selected, the air
conditioning turns on automatically to
improve defrosting performance. In
this mode the air conditioning cannot
be turned off and the recirculation
mode cannot be turned on.
Air Conditioning
#(Air Conditioning):Press to
turn the air conditioning system on or
off. The
#appears in the display
when the air conditioning is on.
When the air conditioning is turned
off
#OFF appears in the display.
The air conditioning cannot be turned
off in defrost mode. If
#is pressed,
the indicator light ashes three times
and the air conditioning stays on.
For quick cool down on hot days,
open the windows to let the hot air to
escape. After a few minutes, close
the windows so the system will work
more effectively.The air conditioning system removes
moisture from the air, so a small
amount of water might drip under the
vehicle while idling or after turning off
the engine. This is normal.
The air conditioning might
automatically turn off during heavy
acceleration or towing with your
vehicle, but the
#will still display.
Recirculation
/(Recirculation):Press to
change the air intake between
recirculated air and outside air.
An indicator light comes when the
recirculation is activated.
The recirculation mode recycles
interior air and is not recommended
for extended use. If it is used for
a long period of time, the system
automatically lets some fresh air into
the vehicle for ventilation.
7-6 Climate Controls
2008 - Pontiac G8 Owner Manual

Starting and
Operating Your
Vehicle
New Vehicle Break-In
Notice:Your vehicle does not
need an elaborate break-in. But it
will perform better in the long
run if you follow these guidelines:
Do not drive at any one
constant speed, fast or slow,
for the rst 500 miles (805 km).
Do not make full-throttle
starts. Avoid downshifting to
brake or slow the vehicle.
During the rst 600 miles
(1 000 km), avoid using
more than moderate
acceleration in lower gears and
avoid vehicle speeds above
68 mph (110 km/h).
Between the rst 600 miles
(1 000 km) and 3,000 miles
(5 000 km), heavy acceleration
in lower gears can be used.
Vehicle speeds above 68 mph
(110 km/h) should be limited
to ve minutes per use.
Avoid making hard stops for the
rst 200 miles (322 km) or so.
During this time the new brake
linings are not yet broken in.
Hard stops with new linings can
mean premature wear and
earlier replacement. Follow this
breaking-in guideline every
time you get new brake linings.
Do not tow a trailer during
break-in. SeeTowing a Trailer
on page 9-85for the trailer
towing capabilities of your
vehicle and more information.
Following break-in, engine speed
and load can be gradually
increased.
Ignition Positions
The ignition switch has four different
positions.
Notice:Using a tool to force the
key from the ignition switch
could cause damage or break the
key. Use the correct key and
turn the key only with your hand.
Make sure the key is in all the
way. If none of this works,
then your vehicle needs service.
To shift out of P (Park), turn the
ignition to ON/RUN and apply
the brake pedal.
8-2 Driving and Operating
2008 - Pontiac G8 Owner Manual