2008 PONTIAC G8 service

How OnStar Service Works
The OnStar system can record and
transmit vehicle information. This
information is automatically sent to
an OnStar Call Center when the
OnStar button is pressed, the
emergency button is pressed, or if
the airbags or AACN system deploy.
The vehicle information usually
includes your GPS location and, in
the event of a crash, additional
information regarding the accident
that the vehicle has been involved in
(e.g. the direction from which the
vehicle was hit). When the Virtual
Advisor feature of OnStar
Hands-Free Calling is used, the
vehicle also sends OnStar your GPS
location so that we can provide
services where you are located.
OnStar service cannot work unless
the vehicle is in a place where
OnStar has an agreement with a
wireless service provider for service
in that area. OnStar service also
cannot work unless you are in
a place where the wireless service
provider OnStar has hired forthat area has coverage, network
capacity and reception when
the service is needed, and
technology that is compatible with
the OnStar service. Not all services
are available everywhere,
particularly in remote or enclosed
areas, or at all times.
Location information about the
vehicle is only available if the GPS
satellite signals are available
and unobstructed.
The vehicle must have a working
electrical system (including adequate
battery power) for the OnStar
equipment to operate. There are
other problems OnStar cannot
control that may prevent OnStar from
providing OnStar service to you at
any particular time or place. Some
examples are damage to important
parts of the vehicle in an accident,
hills, tall buildings, tunnels, weather
or wireless phone network
congestion.Your Responsibility
Increase the volume of the radio if
you cannot hear the OnStar advisor.
If the light next to the OnStar
buttons is red, the system is not
functioning properly and should be
checked by your dealer/retailer.
If the light appears clear (no light is
appearing), the OnStar subscription
has expired. Press the blue
OnStar button to conrm that the
OnStar equipment is active.
4-38 Instruments and Controls
2008 - Pontiac G8 Owner Manual

Radio Message
Security Lockout Active:
This message displays when the
coded security system has been
activated. Take the vehicle to your
dealer/retailer for service.
Using the CD Player
The CD player plays standard sized
CDs. Using CDs of a different
size can damage the drive or disc,
even if an adapter is used.
The CD player has a memory
buffer that holds approximately
seven seconds of music to prevent
interruption while driving over
bumpy surfaces. If the interruption
lasts longer than seven seconds, the
memory buffer can become empty
and playback will be interrupted until
the player has time to refocus, read
the disc, and ll the buffer again.When the player reaches the end of
a CD, it automatically returns to
the start and plays the CD again.
CDs can be loaded with the
ignition and the radio on or off.
CDs will stay in the player if the
ignition or radio is turned off.
If the CD was the last source
selected, it resumes playing
when the radio is turned on.
Loading CDs
To load a CD with the radio with a
single CD player:
1. Insert a CD label side up
partway into the slot.
2. The CD player will pull the CD
in and begin playing if the
radio is on.To load CDs with the radio with a
six-disc CD player:
#LOAD:Press to load CDs into
the CD player. The display shows
DISC and six numbers that
correspond to the six CD storage
locations. When a storage location
has no disc loaded a dash
displays.
To insert one CD:
1. Press
#LOAD and Insert Disc
displays.
2. The load indicator light ashes,
and the radio beeps twice.
3. Insert a CD label side up partway
into the slot.
4. The CD player will pull the CD
in and begin playing if the
radio is on.
Infotainment 6-9
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.
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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

When this light and the STABILITY
CTRL OFF message is on briey
and the ESP OFF message is
displayed at the bottom of the DIC,
the system will not limit wheel spin.
If the ESP OFF message is
always displayed at the bottom of
the DIC when the button is pressed
to turn the system on or off, the
system needs repair. Contact your
dealer/retailer.
The system is on when this light
and the STABILITY CTRL ON
message is displayed briey on
the DIC.
ESP Operation
ESP limits wheel spin by reducing
engine power to the wheels and
by applying brakes to each
individual wheel as necessary.
The ESP system is enabled
automatically when you start your
vehicle, and it will activate the
STABILITY CONTROL
ASSISTANCE light and the ESP
CTRL message on the DIC if
it senses that any of the wheels are
spinning or beginning to lose
traction while driving.
Notice:If you allow the wheel(s)
of one axle to spin excessively
while the ESC/TCS, ABS and
Brake warning lights and
the SERVICE ESC and/or
SERVICE TRACTION messages
are displayed, you could damagethe differential. The repairs would
not be covered by your warranty.
Reduce engine power and do
not spin the wheel(s) excessively
while these lights and this
message are displayed.
The traction control system may
activate on dry or rough roads
or under conditions such as heavy
acceleration while turning or
abrupt upshifts/downshifts of the
transmission. When this happens,
you may notice a reduction in
acceleration, or may hear a noise or
vibration. This is normal.
Adding non-dealer/non-retailer
accessories can affect your vehicle’s
performance. SeeAccessories
and Modifications on page 9-3for
more information.
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2008 - Pontiac G8 Owner Manual

Before Leaving on a
Long Trip
To prepare your vehicle for a long
trip, consider having it serviced
by your dealer/retailer before
departing.
Things to check on your own include:
Windshield Washer Fluid:
Reservoir full? Windows
clean — inside and outside?
Wiper Blades:In good shape?
Fuel, Engine Oil, Other Fluids:
All levels checked?
Lamps:Do they all work and are
lenses clean?
Tires:Are treads good? Are tires
inated to recommended
pressure?
Weather and Maps:Safe to
travel? Have up-to-date maps?
Highway Hypnosis
Always be alert and pay attention to
your surroundings while driving.
If you become tired or sleepy, nd a
safe place to park your vehicle
and rest.
Other driving tips include:
Keep the vehicle well ventilated.
Keep interior temperature cool.
Keep your eyes moving — scan
the road ahead and to the sides.
Check the rearview mirror and
vehicle instruments often.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on at or rolling terrain. Tips for
driving in these conditions include:
Keep the vehicle serviced
and in good shape.
Check all uid levels and brakes,
tires, cooling system, and
transmission.
Going down steep or long hills,
shift to a lower gear.
{CAUTION
If you do not shift down, the
brakes could get so hot that
they would not work well. You
would then have poor braking
or even none going down a hill.
You could crash. Shift down to
let the engine assist the brakes
on a steep downhill slope.
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Gasoline Octane
If your vehicle has a V8 engine, use
regular unleaded gasoline with a
posted octane rating of 87 or higher.
If the octane rating is less than 87,
you might notice an audible
knocking noise when you drive,
commonly referred to as spark
knock. If this occurs, use a gasoline
rated at 87 octane or higher as
soon as possible. If you are using
gasoline rated at 87 octane or higher
and you hear heavy knocking, the
engine needs service.
If your vehicle has the 3.6L V6
engine (VIN Code 7), use regular
unleaded gasoline with a posted
octane rating of 87 or higher.
For best performance or trailer
towing, you could choose to
use middle grade 89 octane
unleaded gasoline. If the octane
rating is less than 87, you might
notice an audible knocking noise
when you drive, commonly referred
to as spark knock.If this occurs, use a gasoline rated
at 87 octane or higher as soon
as possible. If you are using
gasoline rated at 87 octane or higher
and you hear heavy knocking, the
engine needs service.
Gasoline Specications
At a minimum, gasoline should
meet ASTM specication D 4814
in the United States or
CAN/CGSB-3.5 or 3.511 in Canada.
Some gasolines contain an
octane-enhancing additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT). We recommend
against the use of gasolines
containing MMT. SeeAdditives on
page 8-34for additional information.
California Fuel
If your vehicle is certied to meet
California Emissions Standards, it is
designed to operate on fuels that
meet California specications.
See the underhood emission control
label. If this fuel is not available
in states adopting California
emissions standards, your vehicle
will operate satisfactorily on
fuels meeting federal specications,
but emission control system
performance might be affected.
The malfunction indicator lamp could
turn on and your vehicle might fail
a smog-check test. SeeMalfunction
Indicator Lamp on page 4-18.
If this occurs, return to your
authorized dealer/retailer for
diagnosis. If it is determined that the
condition is caused by the type of
fuel used, repairs might not be
covered by the vehicle warranty.
Driving and Operating 8-33
2008 - Pontiac G8 Owner Manual

Additives
To provide cleaner air, all gasolines
in the United States are now required
to contain additives that help prevent
engine and fuel system deposits
from forming, allowing the emission
control system to work properly.
In most cases, you should not have
to add anything to the fuel. However,
some gasolines contain only the
minimum amount of additive required
to meet U.S. Environmental
Protection Agency regulations.
To help keep fuel injectors and intake
valves clean, or if your vehicle
experiences problems due to dirty
injectors or valves, look for gasoline
that is advertised as TOP TIER
Detergent Gasoline. Also, your
dealer/retailer has additives that will
help correct and prevent most
deposit-related problems.
Gasolines containing oxygenates,
such as ethers and ethanol, and
reformulated gasolines might
be available in your area.We recommend that you use these
gasolines, if they comply with the
specications described earlier.
However, E85 (85% ethanol) and
other fuels containing more than
10% ethanol must not be used in
vehicles that were not designed
for those fuels.
Notice:Your vehicle was not
designed for fuel that contains
methanol. Do not use fuel
containing methanol. It can
corrode metal parts in the fuel
system and also damage plastic
and rubber parts. That damage
would not be covered under your
warranty.
Some gasolines that are not
reformulated for low emissions can
contain an octane-enhancing additive
called methylcyclopentadienyl
manganese tricarbonyl (MMT); ask
the attendant where you buy gasoline
whether the fuel contains MMT.We recommend against the use of
such gasolines. Fuels containing
MMT can reduce the life of spark
plugs and the performance of the
emission control system could be
affected. The malfunction indicator
lamp might turn on. If this occurs,
return to your dealer/retailer for
service.
Fuels in Foreign
Countries
If you plan on driving in another
country outside the United States or
Canada, the proper fuel might be
hard to nd. Never use leaded
gasoline or any other fuel not
recommended in the previous text
on fuel. Costly repairs caused
by use of improper fuel would not
be covered by your warranty.
To check the fuel availability, ask an
auto club, or contact a major oil
company that does business in the
country where you will be driving.
8-34 Driving and Operating
2008 - Pontiac G8 Owner Manual