2008 PONTIAC G8 manual transmission

The main components of the
instrument panel are the following:
A.Turn Signal/Multifunction
Lever on page 4-4 .
B. Audio Steering Wheel Controls
on page 6-23 andDIC Operation
and Displays on page 4-23 .
C. Instrument Panel Cluster on
page 4-11 .
D. Audio Steering Wheel Controls
on page 6-23 .
E. Windshield Wipers on page 4-8 .
F. Hazard Warning Flashers on
page 4-4 .
G. Voltmeter, Oil Gage. Voltmeter
Gage on page 4-15 .
H. Outlet Adjustment on page 7-8 .I.
Exterior Lamps Controls on
page 5-1 .Instrument Panel
Brightness on page 5-3 .Fog
Lamps on page 5-3 (If Equipped).
J. Hood Release on page 9-5.
K. Tilt Wheel on page 4-4 .
L. Horn on page 4-4.
M. Ignition Positions on page 8-2 .
N. Climate Control System on
page 7-1 .Automatic Climate
Control System on page 7-4
(If Equipped).
O. Shift Lever. Automatic
Transmission Operation on
page 8-6 . P.
Power Door Locks on page 2-9 .
Q. Outside Power Mirror(s) on
page 2-17 .
R. Power Windows on page 2-15 .
S. Traction Control System (TCS) Disable Button. Electronic
Stability Program on page 8-16 .
T. Heated Seats on page 1-5
(If Equipped).
U. Accessory Power Outlet(s) on
page 4-9 .
V. Audio System(s) on page 6-1 .
W. Glove Box on page 3-1 .
Instruments and Controls 4-3
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

Underspeed Chime
If an OverSpeed warning appeared
and the vehicle’s speed drops
below the set value, you will hear a
chime. The underspeed chime
can be turned on or off through the
vehicle customization. SeeDIC
Vehicle Customization on page 4-32
for more information.
DIC Warnings and
Messages
Messages are displayed on the DIC
to notify the driver that the status
of the vehicle has changed and that
some action may be needed by
the driver to correct the condition.
Multiple messages may appear one
after another.
Some messages may not require
immediate action, but you can press
3or8to acknowledge that
you received the messages and to
clear them from the display.
Some messages cannot be cleared
from the DIC display becausethey are more urgent. These
messages require action before they
can be cleared. You should take
any messages that appear on
the display seriously and remember
that clearing the messages will
only make the messages disappear,
not correct the problem.
The following are the possible
messages that can be displayed
and some information about them.
!ABS Fault
This message is displayed if there is
a problem with the ABS system.
The ABS light may also turn on in
the instrument panel cluster.
SeeAntilock Brake System (ABS)
Warning Light on page 4-17.
When this message is on, the brake
system will still operate with the
antilock operation disabled.
See your dealer/retailer.
uActive Select On
This message is displayed when the
automatic transmission active
select mode is enabled. See “Active
Select Mode” underAutomatic
Transmission Operation on
page 8-6.
9Airbag Fault
This message is displayed if there is
a problem with the airbag system
or safety belt pretensioner system.
SeeAirbag System on page 1-19
and “Safety Belt Pretensioners”
underLap-Shoulder Belt on
page 1-14. The Airbag Readiness
light may also come on in the
instrument panel cluster. SeeAirbag
Readiness Light on page 4-13.
See your dealer/retailer.
Instruments and Controls 4-27
2008 - Pontiac G8 Owner Manual

Service Charging System
This message is displayed when
there is a fault in the battery
charging system, see your
dealer/retailer.
You can press
3or8to
acknowledge that you received the
message, but
"Low Batt will
continue to appear in the bottom of
the DIC display until the vehicle
has been serviced.
:Service Engine Oil
This message is displayed when the
engine oil needs to be changed.
When you change the engine oil, be
sure to reset the Oil Life System.
SeeEngine Oil Life System on
page 9-10for information on how to
reset the message. SeeEngine
Oil on page 9-8andScheduled
Maintenance on page 11-4for more
information.
vService Vehicle Soon
This message is displayed when
there is a problem with the vehicle,
see your dealer/retailer.
You can press
3or8to
acknowledge that you received the
message, but
*Service will
continue to appear in the bottom of
the DIC display until the vehicle
has been serviced.
DSport Shift
This message is displayed when the
automatic transmission is operating
in sport shift mode.
SeeAutomatic Transmission
Operation on page 8-6.
LStability Ctrl (Control)
Assistance
This message is displayed when the
Electronic Stability Program
(ESP
®) is actively helping the
vehicle with road grip and stability.
ESP CTRL appears at the bottom
of the display and remains
illuminated as long as the ESP is
actively helping with road grip
and stability. SeeElectronic Stability
Program on page 8-16.
FStability Ctrl (Control) Off
This message is displayed when the
ESP has been turned off.
SeeElectronic Stability Program on
page 8-16. If this message is
displayed and you have not turned
off the ESP, it means there is a
problem with the ESP, see
your dealer/retailer.
Instruments and Controls 4-31
2008 - Pontiac G8 Owner Manual

Driving and
Operating
Starting and Operating
Your Vehicle
New Vehicle Break-In.........8-2
Ignition Positions................8-2
Retained Accessory
Power (RAP).....................8-3
Starting the Engine.............8-4
Engine Coolant Heater.......8-5
Automatic Transmission
Operation..........................8-6
Parking Brake.....................8-9
Shifting Into Park
(Automatic
Transmission)
..................8-10
Shifting Out of Park..........8-11
Parking Over Things
That Burn........................8-11
Engine Exhaust.................8-12
Running the Vehicle
While Parked..................8-12
Driving Your Vehicle
Defensive Driving..............8-13
Drunk Driving....................8-13
Control of a Vehicle..........8-14
Braking.............................8-14
Antilock Brake
System (ABS).................8-15
Electronic Stability
Program..........................8-16
Steering............................8-19
Off-Road Recovery............8-20
Passing.............................8-21
Loss of Control.................8-21
Driving at Night.................8-22
Driving in Rain and on
Wet Roads......................8-23
Before Leaving on a
Long Trip........................8-24
Highway Hypnosis.............8-24
Hill and Mountain Roads. . . .8-24
Winter Driving...................8-25
If Your Vehicle is Stuck
in Sand, Mud, Ice,
or Snow
..........................8-27
Rocking Your Vehicle to
Get It Out.......................8-28
Loading the Vehicle..........8-28
Fuel
Fuel..................................8-32
Gasoline Octane...............8-33
Gasoline Specications. . . . .8-33
California Fuel..................8-33
Additives...........................8-34
Fuels in Foreign
Countries........................8-34
Filling the Tank.................8-35
Filling a Portable Fuel
Container........................8-36
Driving and Operating 8-1
2008 - Pontiac G8 Owner Manual

A (LOCK/OFF):This is the only
position from which you can remove
the key. This locks the steering
wheel, ignition and automatic
transmission.
On vehicles with an automatic
transmission, the shift lever must be
in P (Park) to turn the ignition
switch to the LOCK/OFF position.
The ignition switch can bind in
the LOCK/OFF position with your
wheels turned off center. If this
happens, move the steering wheel
from right to left while turning the
key to ACC/ACCESSORY. If this
doesn’t work, then the vehicle needs
service.
B (ACC/ACCESSORY):This
position provides power to some
of the electrical accessories.
It unlocks the steering wheel and
ignition. The transmission is
also unlocked in this position
on automatic transmission
vehicles. To move the key from
ACC/ACCESSORY to LOCK/OFF,
push in the key and then turn it
to LOCK/OFF.C (ON/RUN):The ignition switch
stays in this position when the
engine is running. This position can
be used to operate the electrical
accessories, including the ventilation
fan and 12 volt power outlet, as
well as to display some warning and
indicator lights.
The battery could be drained
if you leave the key in the
ACC/ACCESSORY or ON/RUN
position with the engine off.
You may not be able to start the
vehicle if the battery is allowed
to drain for an extended period
of time.
D (START):This position starts the
engine. When the engine starts,
release the key. The ignition switch
will return to ON/RUN for normal
driving.
A warning tone will sound when the
driver door is opened when the
ignition is still in ACC/ACCESSORY
and the key is in the ignition.Retained Accessory
Power (RAP)
These vehicle accessories may be
used for up to 10 minutes after
the engine is turned off.
Audio System
Power Windows
The power windows will continue to
work for up to 10 minutes or until
any door is opened. The radio
will work when the key is in ON/RUN
or ACC/ACCESSORY. Once the
key is turned from ON/RUN to
LOCK/OFF, the radio will continue
to work for 10 minutes or until
the driver’s door is opened.
Driving and Operating 8-3
2008 - Pontiac G8 Owner Manual

Starting the Engine
Move the shift lever to P (Park) or
N (Neutral). The engine will not start
in any other position. To restart
when you are already moving, use
N (Neutral) only.
Notice:Do not try to shift to
P (Park) if your vehicle is moving.
If you do, you could damage the
transmission. Shift to P (Park)
only when your vehicle is stopped.
1. With your foot off the accelerator
pedal, turn the ignition key to
START. When the engine starts,
let go of the key. The idle
speed will go down as your
engine gets warm. Do not race
the engine immediately after
starting it. Operate the engine
and transmission gently to allow
the oil to warm up and lubricate
all moving parts.The vehicle has a
Computer-Controlled Cranking
System. This feature assists
in starting the engine and
protects components. If the
ignition key is turned to
the START position, and then
released when the engine
begins cranking, the engine will
continue cranking for a few
seconds or until the vehicle
starts. If the engine does not start
and the key is held in START
for many seconds, cranking
will be stopped after 15 seconds
to prevent cranking motor
damage. To prevent gear
damage, this system also
prevents cranking if the engine
is already running. Engine
cranking can be stopped by
turning the ignition switch
to ACC/ACCESSORY or
LOCK/OFF.Notice:Cranking the engine for
long periods of time, by returning
the key to the START position
immediately after cranking has
ended, can overheat and damage
the cranking motor, and drain the
battery. Wait at least 15 seconds
between each try, to let the
cranking motor cool down.
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.
8-4 Driving and Operating
2008 - Pontiac G8 Owner Manual

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 the 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,
the engine might not perform
properly. Any resulting damage
would not be covered by the
vehicle 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 will prevent
engine coolant heater operation at
temperatures above 0°F (−18°C).
To Use The Engine Coolant
Heater
1. Turn off the engine.
2. Open the hood and unwrap the
electrical cord.
The electrical cord is located on
the driver side of the engine
compartment, behind the
air cleaner for V8 models.
The electrical cord is located on
the passenger side of the
engine compartment, behind the
engine compartment fuse
block for V6 models.3. Plug it into a normal, grounded
110-volt AC outlet.
{CAUTION
Plugging the cord into an
ungrounded outlet could cause
an electrical shock. Also, the
wrong kind of extension cord
could overheat and cause a
re. You could be seriously
injured. Plug the cord into a
properly grounded three-prong
110-volt AC outlet. If the cord
will not reach, use a heavy-duty
three-prong extension cord
rated for at least 15 amps.
4. Before starting the engine, be
sure to unplug and store the
cord as it was before to keep it
away from moving engine
parts. If you do not it could be
damaged.
Driving and Operating 8-5
2008 - Pontiac G8 Owner Manual