2007 PONTIAC GRAND PRIX Service vehicle soon

{CAUTION:
When an airbag inates, there may be
dust in the air. This dust could cause
breathing problems for people with a
history of asthma or other breathing
trouble. To avoid this, everyone in the
vehicle should get out as soon as it is
safe to do so. If you have breathing
problems but cannot get out of the vehicle
after an airbag inates, then get fresh air
by opening a window or a door. If you
experience breathing problems following
an airbag deployment, you should seek
medical attention.
Your vehicle has a feature that may automatically
unlock the doors, turn the interior lamps on, and
turn on the hazard warning ashers when the
airbags inate. You can lock the doors again, turn
the interior lamps off, and turn the hazard warning
ashers off by using the controls for those features.In many crashes severe enough to inate an airbag,
windshields are broken by vehicle deformation.
Additional windshield breakage may also occur
from the right front passenger airbag.Airbags are designed to inate only once. After
an airbag inates, you will need some new
parts for the airbag system. If you do not get
them, the airbag system will not be there to help
protect you in another crash. A new system will
include airbag modules and possibly other
parts. The service manual for your vehicle
covers the need to replace other parts.
Your vehicle has a crash sensing and
diagnostic module which records information
after a crash. SeeVehicle Data Collection and
Event Data Recorders on page 504.
Let only qualied technicians work on the
airbag system. Improper service can mean that
your airbag system will not work properly. See
your dealer for service.
73

{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.
Anti-Lock Brake System
Warning Light
If the vehicle has the
Anti-lock Brake System
(ABS), this light will
come on when the
engine is started and
may stay on for several
seconds. That is normal.If the ABS warning light comes on and stays on,
there may be a problem with the anti-lock
portion of the brake system. If the brake system
warning light is not on, the vehicle still has brakes,
but it does not have anti-lock brakes. SeeBrake
System Warning Light on page 176.
If the light stays on, the vehicle needs service.
If the light comes on while the vehicle is being
driven, stop as soon as possible and turn the
ignition off. Then start the vehicle again to reset the
system. If the light still 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 it does not have
anti-lock brakes. If the brake system warning light is
also on, the vehicle does not have anti-lock brakes
and there is a problem with the regular brakes. See
Brake System Warning Light on page 176. If both
the brake system warning light and the anti-lock
brake system light is on, pull off the road and have
the vehicle towed for service.
The anti-lock brake system warning light will come
on briey when the ignition key is turned to
RUN. This is normal. If the light does not come on
then, have it xed so it will be ready to warn
you if there is a problem.
177

Low Tire Pressure Warning Light
This light should come
on briey as you start
the engine.
This light will also come on when one or more of
your tires is signicantly under-inated. Stop and
check your tires as soon as it is safe to do so.
If underinated, inate them to the proper pressure.
SeeTires on page 400for more information. This
light will ash for 60 seconds and then turn on solid
if a problem is detected with the Tire Pressure
Monitor System. SeeTire Pressure Monitor System
on page 409for more information.
Traction Control System (TCS)
Warning Light
If the vehicle has the
Traction Control
System (TCS), this light
may come on for the
following reasons:
The traction control button, located on the
center console, is pressed, turning the
system off. The light will stay on. To turn the
system back on, press the button again
and the warning light should go out. See
Traction Control System (TCS) on page 292
for more information.
If there is a brake system problem that is
specically related to traction control, the TCS
will turn off and the warning light will come on.
If the brakes begin to overheat, the TCS will
turn off and the warning light will come on until
the brakes cool down.
If the TCS warning light comes on and stays on
for an extended period of time when the system is
turned on, the vehicle needs service.
178

Enhanced Traction System
Warning Light
If the vehicle has the
Enhanced Traction
System (ETS), this light
may come on for the
following reasons:
If the traction control button located on the
center console is pressed, turning the system
off. This light will come on and stay on. To turn
the system back on, press the button again and
the warning light should turn off. SeeEnhanced
Traction System (ETS) on page 293.
If the system is affected by an engine-related
problem, the system will turn off and the
warning light will come on.
If the light comes on and stays on for an extended
period of time when the system is turned on,
the vehicle needs service.
Engine Coolant Temperature
Warning Light
This light indicates that
the engine coolant has
overheated or the
radiator cooling fan is
not working.
If the vehicle has been operating under normal
driving conditions, pull off the road, stop the
vehicle, and turn off the engine as soon as
possible.
SeeCooling System on page 366for more
information.
179

Engine Coolant Temperature Gage
The vehicle has a gage
that shows the engine
coolant temperature.
If the gage pointer moves into the shaded area,
the engine is too hot. That reading means
the engine coolant has overheated. If you have
been operating the vehicle under normal
driving conditions, you should pull off the road,
stop the vehicle, and turn off the engine as soon
as possible.
SeeCooling System on page 366for more
information.
Malfunction Indicator Lamp
Check Engine Light
Your vehicle has a
computer which
monitors operation of
the fuel, ignition,
and emission control
systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended
to assure that emissions are at acceptable
levels for the life of the vehicle, helping to produce
a cleaner environment. The check engine light
comes on to indicate that there is a problem and
service is required. Malfunctions often will be
indicated by the system before any problem is
apparent. This may prevent more serious damage
to your vehicle. This system is also designed to
assist your service technician in correctly
diagnosing any malfunction.
180

If the Light is Flashing
The following may prevent more serious damage
to your vehicle:
Reducing vehicle speed
Avoiding hard accelerations
Avoiding 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 stops ashing and remains on steady,
see “If the Light Is On Steady” following.
If the light continues to ash, when it is safe to do
so, stop the vehicle. Find a safe place to park
your vehicle. Turn the key off, wait at least
10 seconds and restart the engine. If the light
remains on steady, see “If the Light Is On Steady”
following. If the light is still ashing, follow the
previous steps, and see your dealer for service as
soon as possible.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully
install the cap. SeeFilling the Tank on page 342.
The diagnostic system can determine if the
fuel cap has been left off or improperly installed.
A loose or missing fuel cap will allow fuel to
evaporate into the atmosphere. A few driving trips
with the cap properly installed should turn the
light off.
Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The
condition will usually be corrected when the
electrical system dries out. A few driving trips
should turn the light off.
182

Oil Pressure Light
If there is a problem
with the vehicle’s oil
pressure, this light may
stay on when the
engine is started.
It may also come on while the vehicle is being
driven. This indicates that the engine could be low
on oil or could have some other oil problem.
Have it xed right away.
The oil light could also come on in two other
situations:
When the ignition is on but the engine is not
running, the light will come on as a test to
indicate it is working. The light will go out when
the ignition is turned to RUN. If it does not come
on while the ignition is in the on position, there
may be a problem with the fuse or bulb. See
Fuses and Circuit Breakers on page 460.
If the brakes are applied quickly and the vehicle
makes a hard stop, the light may come on for a
moment. This is normal.
{CAUTION:
Do not keep driving if the oil pressure is
low. If you do, your engine can become so
hot that it catches re. You or others
could be burned. Check your oil as soon
as possible and have your vehicle
serviced.
Notice:Lack of proper engine oil maintenance
may damage the engine. The repairs would
not be covered by your warranty. Always follow
the maintenance schedule in this manual for
changing engine oil.
184

CHANGE OIL SOON
This symbol comes on
with this message.
This message displays when service is required
for the vehicle. See your dealer. SeeEngine Oil on
page 350andScheduled Maintenance on
page 473for more information.
The CHANGE OIL SOON message is reset by
acknowledging the message. The ENGINE OIL
MONITOR SYSTEM screen under the options
menu on the DIC must also be reset. See “Engine
Oil Monitor System” in options underDIC Controls
and Displays (Base Level DIC) on page 186orDIC
Controls and Displays (Uplevel DIC with Trip
Computer) on page 190for more information.
This message displays while the ignition is in RUN.
Press the set/reset button to acknowledge this
message and to clear it from the screen.This message continues to display for
three seconds if it has not been acknowledged
when the engine is turned off. It also re-displays
for three seconds if the message has been
acknowledged, but the condition still exists when
the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
CHARGING SYSTEM FAILURE
This symbol comes on
with this message.
This message displays when there is a problem
with the generator and battery charging systems.
Driving with this problem could drain the battery.
Turn off all unnecessary accessories. Stop
and turn off the vehicle as soon as it is safe to do
so. Have the electrical system checked by your
dealer as soon as possible.
202