DIC PONTIAC G6 2009 Service Manual

When air conditioning is selected or in AUTO mode, the
system runs the air conditioning automatically to cool
and dehumidify the air entering the vehicle.
On hot days, open the windows long enough to let hot
inside air escape. This reduces the time it takes for
the vehicle to cool down. Then keep the windows closed
for the air conditioner to work its best.
On cool, but sunny days while using manual operation
of the automatic system, use bi-level to deliver warm
air to the oor and cooler air to the instrument
panel outlets. To warm or cool the air, press
xorwto
the desired temperature setting.
In AUTO mode the system cools and dehumidies the
air inside the vehicle. Also, the system maximizes
its performance by using recirculation as necessary.
Heating:On cold days when using manual operation of
the automatic system, choose oor mode to deliver
air to the oor outlets. To warm or cool the air delivered,
adjust the temperature to the desired setting.
To use the automatic mode, turn the knob to AUTO and
adjust the temperature by pressing
xorw.
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
<(Rear):Press to turn the rear window defogger on
or off. An indicator light above the button comes on
to indicate that the rear window defogger is on.
If driving below 50 mph (80 km/h), the rear window
defogger turns off about 15 minutes after the button is
pressed. If turned on again, the defogger only runs
for about seven and one-half minutes before turning off.
If the vehicle’s speed is maintained above 50 mph
(80 km/h), the rear window defogger remains on once
the button is pressed.
If the vehicle has the remote start feature, the rear
defogger automatically turns on if it is cold outside,
but the indicator light does not come on. When
the vehicle transitions out of remote start mode the rear
defogger turns off.
Notice:Do not use a razor blade or sharp object
to clear the inside rear window. Do not adhere
anything to the defogger grid lines in the rear glass.
These actions may damage the rear defogger.
Repairs would not be covered by your warranty.
3-27

Outlet Adjustment
Rotate the instrument panel outlets and move the
louvers on the outlets to change the direction and
amount of airow inside the vehicle.
Operation Tips
Clear away any ice, snow or leaves from the air
inlets at the base of the windshield that can
block the ow of air into the vehicle.
Use of non-GM approved hood deectors can
adversely affect the performance of the system.
Keep the path under the front seats clear of objects
to help circulate the air inside of the vehicle more
effectively.
When an objectionable odor outside the vehicle is
encountered, use the recirculation mode, with the
temperature knob at a comfortable setting to prevent
the odor from entering the vehicle through the
ventilation system. This can be helpful when
driving through a long tunnel with poor ventilation.
However, extended usage of this mode in cold
or cool weather can cause window fogging.
Warning Lights, Gages, and
Indicators
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause
an expensive repair or replacement. Paying attention to
the warning lights and gages could prevent injury.
Warning lights come on when there may be or is a
problem with one of the vehicle’s functions. Some
warning lights come on briey when the engine is started
to indicate they are working.
Gages can indicate when there may be or is a problem
with one of the vehicle’s functions. Often gages and
warning lights work together to indicate a problem with
the vehicle.
When one of the warning lights comes on and stays on
while driving, or when one of the gages shows there
may be a problem, check the section that explains what
to do. Follow this manual’s advice. Waiting to do
repairs can be costly and even dangerous.
3-28

Speedometer and Odometer
The speedometer shows the vehicle speed in both miles
per hour (mph) and kilometers per hour (km/h).
The odometer shows how far the vehicle has been
driven, in either miles (used in the United States)
or kilometers (used in Canada).
When in manual shift mode, the odometer will change
from the vehicle’s mileage to the letter M, for manual
mode, and a number indicating the requested gear
range when moving the shift lever forward or rearward.
For more information seeAutomatic Transmission
Operation on page 2-26.
This vehicle has a tamper resistant odometer.
Repair or replacement of the instrument panel cluster
should only be performed by your dealer/retailer.
Trip Odometer
The trip odometer can display how far the vehicle has
been driven since it was last reset.
For more information seeDIC Operation and Displays
on page 3-43.
Tachometer
The tachometer shows the
engine speed in revolutions
per minute (rpm).
Notice:If the engine is operated with the tachometer
in the shaded warning area, the vehicle could be
damaged, and the damages would not be covered by
the vehicle warranty. Do not operate the engine with
the tachometer in the shaded warning area.2.4L and 3.6L Engine
shown, 3.5L and
3.9L Engine similar
3-30

Airbag Readiness Light
The system checks the airbag’s electrical system for
possible malfunctions. If the light stays on it indicates
there is an electrical problem. The system check
includes the airbag sensor, the pretensioners, the airbag
modules, the wiring and the crash sensing and
diagnostic module. For more information on the airbag
system, seeAirbag System on page 1-61.
The airbag readiness light
ashes for a few seconds
when the engine is
started. If the light does
not come on then, have it
xed immediately.{CAUTION:
If the airbag readiness light stays on after the
vehicle is started or comes on while driving, it
means the airbag system might not be working
properly. The airbags in the vehicle might not
inate in a crash, or they could even inate
without a crash. To help avoid injury, have the
vehicle serviced right away.
If there is a problem with the airbag system, an airbag
Driver Information Center (DIC) message can also come
on. SeeDIC Warnings and Messages on page 3-46
for more information.
3-32

Passenger Airbag Status Indicator
The vehicle has a passenger sensing system. See
Passenger Sensing System on page 1-69for important
safety information. The instrument panel has a
passenger airbag status indicator.
When the vehicle is started, the passenger airbag status
indicator will light ON and OFF, or the symbol for on and
off, for several seconds as a system check. If you are
using remote start to start the vehicle from a distance,
if equipped, you may not see the system check. Then,
after several more seconds, the status indicator will light
either ON or OFF, or either the on or off symbol to let you
know the status of the right front passenger frontal and
seat-mounted side impact airbags.If the word ON or the on symbol is lit on the passenger
airbag status indicator, it means that the right front
passenger frontal airbag and seat-mounted side impact
airbag are enabled (may inate).
If the word OFF or the off symbol is lit on the passenger
airbag status indicator, it means that the passenger
sensing system has turned off the right front passenger
frontal and seat-mounted side impact airbag.
If, after several seconds, both status indicator lights
remain on, or if there are no lights at all, there may be a
problem with the lights or the passenger sensing
system. See your dealer/retailer for service.
{CAUTION:
If the airbag readiness light ever comes on and
stays on, it means that something may be wrong
with the airbag system. To help avoid injury to
yourself or others, have the vehicle serviced right
away. SeeAirbag Readiness Light on page 3-32
for more information, including important safety
information. United States
Canada
3-33

Charging System Light
This light comes on briey
when the ignition key is
turned to start, but the
engine is not running,
as a check to show it is
working.
If it does not, have the vehicle serviced by your
dealer/retailer.
The light should go out once the engine starts. If it stays
on, or comes on while driving, there could be a
problem with the charging system. This light could
indicate that there are problems with a generator drive
belt, or that there is an electrical problem. Have it
checked right away. If the vehicle must be driven a short
distance with the light on, turn off accessories, such
as the radio and air conditioner.
Brake System Warning Light
The vehicle’s hydraulic brake system is divided into
two parts. If one part is not working, the other part can
still work and stop the vehicle. For good braking
both parts need to be working.
If the warning light comes on, there is a brake problem.
Have the brake system inspected right away.
This light should come on briey when the engine is
started. If it does not come on then, have it xed so it
will be ready to warn if there is a problem.
When the ignition is on, the brake system warning
light also comes on when the parking brake is set.
The light will stay on if the parking brake does not fully
release. If it stays on after the parking brake is fully
released, it means there is a brake problem.
United StatesCanada
3-34

{CAUTION:
The brake system might not be working properly if
the brake system warning light is on. Driving with
the brake system warning light on can lead to a
crash. If the light is still on after the vehicle has
been pulled off the road and carefully stopped,
have the vehicle towed for service.
If the light comes on while driving, pull off the road and
stop carefully. The pedal can be harder to push, or
the pedal could go closer to the oor. It could take
longer to stop. Try turning off and restarting the vehicle
one or two times, if the light is still on, have the
vehicle towed for service. SeeTowing Your Vehicle on
page 4-26.
Antilock Brake System (ABS)
Warning Light
For vehicles with the
Antilock Brake System
(ABS), this light comes on
briey when the engine
is started.
If it does not, have the vehicle serviced by your
dealer/retailer. If the system is working normally the
indicator light then goes off.
If the ABS light stays on, turn the ignition off. If the light
comes on while driving, stop as soon as it is safely
possible and turn the ignition off. Then start the engine
again to reset the system. If the ABS light stays on,
or comes on again while driving, the vehicle needs
service. If the regular brake system warning light is not
on, the vehicle still has brakes, but not antilock brakes.
If the regular brake system warning light is also on,
the vehicle does not have antilock brakes and there is a
problem with the regular brakes. SeeBrake System
Warning Light on page 3-34.
For vehicles with a Driver Information Center (DIC),
seeDIC Warnings and Messages on page 3-46for all
brake related DIC messages.
3-35

Traction Control System (TCS)
Warning Light
If the traction control
warning light comes on
and stays on, there may be
a problem with the
traction control system.
SeeTraction Control System (TCS) on page 4-7for
more information.
Traction Control System (TCS)
Active Light
This light will appear when
the traction control system
is limiting wheel spin.
Slippery road conditions may exist if this light appears,
so adjust your driving accordingly. The light will stay
on for a few seconds after the traction control system
stops limiting wheel spin. SeeTraction Control System
(TCS) on page 4-7for more information.
StabiliTrak®Not Ready Light
For vehicles with the
StabiliTrak system, this
light comes on if there is a
problem detected with
the StabiliTrak
®system.
This light also comes on when the StabiliTrak system is
turned off.
For more information, seeStabiliTrak
®System on
page 4-6.
StabiliTrak®Indicator Light
For vehicles with the
StabiliTrak system, this
light comes on when
the StabiliTrak
®system
is activated.
For more information, seeStabiliTrak
®System on
page 4-6.
3-36

Engine Coolant Temperature Gage
This gage shows the engine coolant temperature. If the
gage pointer moves into the red area, the light comes
on and a chime sounds, the engine is too hot. It means
that the engine coolant has overheated. SeeEngine
Overheating on page 5-37.
Tire Pressure Light
For vehicles with a tire
pressure light, this light
comes on briey when the
engine is started and
provides information about
tire pressures and the
Tire Pressure Monitoring
System.
When the Light is On Steady
This indicates that one or more of the tires is signicantly
underinated.
A tire pressure message in the Driver Information Center
(DIC), can accompany the light. SeeDIC Warnings and
Messages on page 3-46for more information. Stop and
check the tires as soon as it is safe to do so. If a tire is
underinated, inate to the proper pressure. SeeTires on
page 5-59for more information.
When the Light Flashes First and Then is
On Steady
This indicates that there could be a problem with the Tire
Pressure Monitor System. The light ashes for about
a minute and stays on steady for the remainder of the
ignition cycle. This sequence repeats with every ignition
cycle. SeeTire Pressure Monitor System on page 5-69
for more information. United States
Canada
3-37

Malfunction Indicator Lamp
Check Engine Light
A computer system called OBD II (On-Board
Diagnostics-Second Generation) monitors operation of
the fuel, ignition, and emission control systems.
It ensures that emissions are at acceptable levels for
the life of the vehicle, helping to produce a cleaner
environment.
This light should come on
when the ignition is on, but
the engine is not running,
as a check to show it
working. If it does not, have
the vehicle serviced by your
dealer/retailer.
If the check engine light comes on and stays on, while
the engine is running, this indicates that there is an
OBD II problem and service is required.
Malfunctions often are indicated by the system before
any problem is apparent. Being aware of the light
can prevent more serious damage to the vehicle.
This system assists the service technician in correctly
diagnosing any malfunction.Notice:If the vehicle is continually driven with
this light on, after a while, the emission controls
might not work as well, the 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 the vehicle warranty.
Notice:Modications made to the engine,
transmission, exhaust, intake, or fuel system of
the vehicle or the replacement of the original tires
with other than those of the same Tire Performance
Criteria (TPC) can affect the vehicle’s emission
controls and can cause this light to come on.
Modications to these systems could lead to
costly repairs not covered by the vehicle warranty.
This could also result in a failure to pass a
required Emission Inspection/Maintenance test.
SeeAccessories and Modifications on page 5-4.
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 the vehicle.
Diagnosis and service might be required.
3-38