ignition PONTIAC GRAND PRIX 2007 Service Manual

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.
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Notice:If you keep driving your vehicle with
this light on, after awhile, your emission
controls may not work as well, your fuel
economy may not be as good, and your engine
may not run as smoothly. This could lead to
costly repairs that may not be covered by your
warranty.
Notice:Modications made to the engine,
transaxle, 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 may
cause this light to come on. Modications to
these systems could lead to costly repairs not
covered by your warranty. This may also
result in a failure to pass a required Emission
Inspection/Maintenance test. SeeAccessories
and Modifications on page 336.This light should come on, as a check to show
you it is working, when the ignition is on and the
engine is not running. If the light does not
come on, have it repaired. This light will also
come on during a malfunction in one of two ways:
Light Flashing— A misre condition has
been detected. A misre increases vehicle
emissions and may damage the emission
control system on your vehicle. Diagnosis and
service may be required.
Light On Steady— An emission control
system malfunction has been detected on your
vehicle. Diagnosis and service may be
required.
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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.
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Fog Lamp Light
This light will come on
when the fog lamps are
in use.
The light will go out when the fog lamps are
turned off. SeeFog Lamps on page 146for more
information.
Cruise Control Light
This light comes on
whenever you set your
cruise control.
The light will go out when the cruise control is
turned off. SeeCruise Control on page 140
for more information.
Highbeam On Light
This light comes on
whenever the
high-beam headlamps
are on.
See “Headlamp High/Low-Beam Changer” under
Exterior Lamps on page 144for additional
information.
Fuel Gage
The fuel gage shows
about how much fuel is
left in the fuel tank
when the ignition is on.
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When the indicator nears empty, there is still a
little fuel left, but you should get more soon.
Here are four things owners usually ask about the
fuel gage. All these situations are normal and
do not indicate a problem with the fuel gage:
At the gas station the pump shuts off before
the gage reads full.
It takes more or less fuel to ll up than the
gage indicates. For example, the gage
reads half full, but it took more or less than
half the tank’s capacity to ll it.
The gage pointer may move while cornering,
braking or speeding up.
The gage may not indicate full when the
ignition is turned off.
Driver Information Center (DIC)
The Driver Information Center (DIC) gives
important safety and maintenance facts. When the
vehicle’s ignition is turned on, all of the DIC
lights illuminate for a few seconds and an
introductory message will appear. After this, the
DIC will begin working.
DIC Controls and Displays
(Base Level DIC)
The Driver Information Center (DIC) control
buttons and the message display screen are
located above the radio. The DIC gives important
safety and maintenance facts concerning the
vehicle. The status of many of the vehicle’s
systems along with driver personal programming
mode menus and warning messages about
the vehicle’s systems may display on the DIC
screen.
The vehicle’s transaxle position will also appear.
The buttons on the base level are trip odometer,
set/reset, and options.
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Trip Odometer
3(Trip Odometer):Press this button to access
the odometer and trip distance modes.
The rst menu on the DIC screen will be the
odometer reading, or cumulative mileage of the
vehicle. The odometer cannot be reset.
Press the trip odometer button to advance to the
next menu.
Trip Distances:This menu shows the distances
that the vehicle has driven between specic
points. The trip odometer will record the number of
miles up to 9,999.9 miles or 9 999.9 km travelled
for up to two trips. When 9,999.9 miles or
9 999.9 km is reached for either trip, the odometer
for that trip will go back to zero.
Press the trip odometer button again to access
TRIP A. Press the trip odometer button again
to access TRIP B. To reset the trip odometer(s)
back to zero miles or kilometers, access the trip to
reset and press the set/reset button.The trip odometer has a feature called the
retro-active reset. This can be used to set the trip
odometer to the number of miles or kilometers
driven since the ignition was last turned on. This
can be used if the trip odometer was not reset
at the beginning of the trip.
To use the retro-active reset feature, press and
hold the set/reset button for at least three seconds.
The trip odometer will display the number of
miles or kilometers driven since the ignition was
last turned on and the vehicle began moving. Once
the vehicle has begun moving, the trip odometer
will accumulate mileage. For example, if the
vehicle was driven 5.0 miles (8.0 km) before the
vehicle is started again, and then the retro-active
reset feature is activated, the display will show
5.0 miles (8.0 km). As the vehicle begins moving,
the display will increase to 5.1 miles (8.2 km),
5.2 miles (8.4 km), etc.
If the retro-active reset feature is activated after
the vehicle is started, but before it begins moving,
the display will show the number of miles or
kilometers that were driven during the last ignition
cycle.
Press the trip odometer button again to access the
odometer.
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To reset the trip distances, use the following
procedures:
1. Press the trip odometer button again to
access TRIP A. Press the trip odometer button
again to access TRIP B. To reset the trip
odometer(s) back to zero miles or to
zero kilometers, access the trip that needs to
be reset and press the set/reset button.
2. Press the trip odometer button again to
advance to the next screen.
The trip odometer has a feature called the
retro-active reset. This can be used to set the trip
odometer to the number of miles (kilometers)
driven since the ignition was last turned on. This
can be used if the trip odometer is not reset at the
beginning of the trip.To use the retro-active reset feature, press and
hold the set/reset button for at least three seconds.
The trip odometer will display the number of
miles or kilometers driven since the ignition was
last turned on and the vehicle was moving.
Once the vehicle begins moving, the trip odometer
will accumulate mileage. For example, if the
vehicle was driven 5.0 miles (8.0 km) before it is
started again, and then the retro-active reset
feature is activated, the display will show 5.0 miles
(8.0 km). As the vehicle begins moving, the
display will then increase to 5.1 miles (8.2 km),
5.2 miles (8.4 km), etc.
If the retro-active reset feature is activated after the
vehicle is started, but before it begins moving, the
display will show the number of miles or kilometers
that were driven during the last ignition cycle.
193

DIC Warnings and Messages
These messages display if there is a problem in
one of the vehicle’s systems. They override
any other mode or screen the Driver Information
Center (DIC) may be in.
Some messages can be cleared from the DIC
screen. In order to do this, the message must be
acknowledged. To acknowledge or clear the
message from the screen, press the set/reset
button on the DIC. SeeDIC Controls and Displays
(Base Level DIC) on page 186orDIC Controls
and Displays (Uplevel DIC with Trip Computer) on
page 190for DIC button descriptions.
Other warning messages are not allowed to be
cleared until the problem indicated by the warning
message is taken care of. When the problem
indicated by the message is resolved, it can be
acknowledged and the screen can be reset.
Be sure to take any message that appears on the
DIC screen seriously and remember that
clearing the messages that are able to be
acknowledged, will only make the message
disappear, not correct the problem.
A/C OFF FOR ENGINE PROTECTION
This message displays when the engine coolant
becomes hotter than the normal operating
temperature. To avoid added strain on a hot
engine, the air conditioning compressor is
automatically turned off. When the coolant
temperature returns to normal, the air conditioning
compressor turns back on. The vehicle can
then continue to be driven.
This message comes on while the ignition is in
RUN. A chime sounds for two seconds when this
message is displayed. Press the set/reset
button to acknowledge this warning 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.
200

AJAR
This symbol appears
with this message.
This message displays when a door or the trunk is
not closed properly. If your vehicle has the
remote start feature, this message also displays
when the hood is not closed properly. The graphic
highlights the hood or trunk if either one is not
closed properly. The graphic indicates a
highlighted, open door to show which door or
doors are not closed properly. Make sure that the
area indicated is closed completely.
This message displays while the ignition is in
RUN. A chime sounds for two seconds when the
ignition is shifted out of PARK (P). 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.
BATTERY SAVER ACTIVE
This message displays when the system detects
that the battery voltage is dropping beyond a
reasonable level. The battery saver system starts
reducing certain features of the vehicle which
you may be able to notice. At the point that the
features are disabled, this message is displayed.
It means that the vehicle is trying to save the
charge in the battery. Turn off all unnecessary
accessories to allow the battery to recharge. The
normal battery voltage range is 11.5 to 15.5 volts.
If your vehicle has the uplevel DIC, you can
monitor battery voltage on the DIC by pressing the
gages button until BATTERY appears.
201

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.
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