2004 PONTIAC GRAND PRIX Computer

Battery Run-Down Protection
Your vehicle has a feature to help prevent you from
draining the battery in case you accidentally leave the
interior, trunk or underhood lamps on. If you leave any of
these lamps on while the ignition is in LOCK or OFF,
they will automatically turn off after 10 minutes. The
lamps won't come back on again until you do one of the
following:
·Turn the ignition to RUN or ACCESSORY.
·Turn the interior lamps control completely to the
right, then back slightly to the left.
·Open (or close and reopen) a door that is closed.
If the vehicle has less than 15 miles (25 km) on
the odometer, the battery saver will turn off the lamps
after only three minutes.
Head-Up Display (HUD)
{CAUTION:
If the HUD image is too bright or too high in
your ®eld of view, it may take you more time
to see things you need to see when it's dark
outside. Be sure to keep the HUD image dim
and placed low in your ®eld of view.
If your vehicle is equipped with the Head-Up Display
(HUD), you can see the speedometer reading (in English
or metric units), transaxle positions, compass direction,
outside air temperature, and a brief display of the
current radio station or CD track, displayed ªthroughº
the windshield.
English or metric units selection is done through the
trip computer in the Driver Information Center (DIC).
See
DIC Controls and Displays on page 3-45for more
information.
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The HUD information can be displayed in three
languages, English, French and Spanish.
Language selection is done through the trip computer in
the Driver Information Center (DIC). See
DIC Controls
and Displays on page 3-45.
When you sit up in your seat, the HUD image will
appear straight ahead on the windshield, near the front
bumper.
When the ignition key is turned to run, the HUD will
display the phrase, WIDETRACK GP, for a short time,
until the HUD is warmed up.The following indicator lights come on the instrument
panel when activated and will also appear on the HUD:
·Turn Signal Indicators
·High-Beam Indicator Symbol
The HUD will temporarily display CHECK TRIP
COMPUTER when there are messages on the DIC
trip computer.
The HUD will also temporarily display the following
messages when these systems, if equipped, are active:
·TRACTION CONTROL ACTIVE
·STABILITY CONTROL ACTIVE
The HUD will temporarily display the TRACTION
CONTROL OFF message when the traction control
system is turned off.
The HUD will temporarily display the CRUISE SET
message when cruise control is activated or cruise
speed is increased.
Notice:Although the HUD image appears to be
near the front of the vehicle, do not use it as
a parking aid. The HUD was not designed for that
purpose. If you try to use it as such, you may
misjudge the distance and damage your vehicle.
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Malfunction Indicator Lamp
Check Engine Light
Your vehicle is equipped
with 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.
Notice:If you keep driving your vehicle with this
light on, after a while, 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:Modi®cations 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.
Modi®cations 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.
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Uplevel DIC with Trip Computer
The Driver Information Center (DIC) control buttons and
the message display screen are located above the radio.
The DIC gives you important safety and maintenance
facts concerning the vehicle. The status of many of the
vehicle's systems along with driver personalization
menus and warning messages about your vehicle's
systems may display on the DIC screen.
The outside temperature automatically appears on the
bottom right corner of the DIC display screens. If the
outside temperature is below 38ÉF (3ÉC), the temperature
reading will toggle between displaying the outside
temperature and the word ICE for two minutes. If there is
a problem with the system that controls the temperature
display, the letters OC (Open Circuit) or SC (Short
Circuit) will appear on the display. If this occurs, have the
vehicle serviced by your dealer.
The vehicle's transaxle position, and the direction the
vehicle is traveling will also appear on the DIC screen.The compass is self-calibrating, which eliminates the
need to manually set the compass. However, under
certain circumstances, such as during a long distance
cross-country trip, it will be necessary to compensate
for compass variance and reset the zone through
the DIC. See ªSetting the Compassº later in this section
for more information.
The buttons on the DIC trip computer are:
Gages
2(Gages):Press this button to access the OIL LIFE
REMAINING, TRANSMISSION FLUID TEMPERATURE,
BATTERY, ENGINE HOURS AND ENGINE BOOST
modes.
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HOT TRANS FLUID
This symbol appears with
the HOT TRANS FLUID
warning message.
This warning message will appear when the transaxle
¯uid in the vehicle is too hot. Stop the vehicle and allow
it to idle until it cools down. If the warning message
continues to display, have the vehicle serviced as soon
as possible.
If the vehicle has the Uplevel Trip Computer DIC, you
can determine the actual temperature of the transaxle
¯uid using the vehicle's gages button. See ª Uplevel DIC
with Trip Computerº under
DIC Controls and Displays
on page 3-45for more information.This warning message will display while the ignition is
in RUN. A chime will sound 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 will continue to display if it has not been
acknowledged when the engine is turned off. It will
also re-display for three seconds if the message has
been acknowledged, but the condition still exists
when the engine is turned off.
The message will re-appear when the engine is turned
on and the condition still exists.
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Let's say the road is wet and you're driving safely.
Suddenly, an animal jumps out in front of you.
You slam on the brakes and continue braking.
Here's what happens with ABS:
A computer senses that wheels are slowing down.
If one of the wheels is about to stop rolling, the computer
will separately work the brakes at each wheel.The anti-lock system can change the brake pressure
faster than any driver could. The computer is
programmed to make the most of available tire and
road conditions. This can help you steer around
the obstacle while braking hard.
As you brake, your computer keeps receiving updates
on wheel speed and controls braking pressure
accordingly.
4-8

StabilitrakžPlus System
Your vehicle may be equipped with a vehicle stability
enhancement system called StabilitrakžPlus. It is
an advanced computer controlled system that assists
you with directional control of the vehicle in difficult
driving conditions.
Stabilitrak
žPlus comes on whenever the vehicle is
started. It activates when the computer senses a
discrepancy between your intended path and the
direction the vehicle is actually traveling. Stabilitrak
ž
Plus selectively applies braking pressure at any one of
the vehicle's brakes to help steer the vehicle in the
direction which you are steering.
This symbol, along with
the STABILITY CONTROL
ACTIVE message will
appear on the Driver
Information Center (DIC).See
DIC Warnings and Messages on page 3-65.
You may also hear a noise or feel vibration in the brake
pedal. This is normal. Continue to steer the vehicle in
the direction you want it to go.
If there is a problem
detected with Stabilitrak
ž
Plus, this symbol along
with the SERVICE
STABILITY SYSTEM
warning message will be
displayed on the Driver
Information Center (DIC).
See
DIC Warnings and Messages on page 3-65. When
this message is displayed, the system is not operational.
Driving should be adjusted accordingly.
If your vehicle is in cruise control when Stabilitrak
žPlus
activates, the cruise control will automatically disengage.
When road conditions allow you to safely use it again,
you may reengage the cruise control. See
Cruise Control
Lever on page 3-8for more information.
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When to Change Engine Oil
(GM Oil Life System)
Your vehicle has a computer system that lets you know
when to change the engine oil and ®lter. This is based on
engine revolutions and engine temperature, and not on
mileage. Based on driving conditions, the mileage at
which an oil change will be indicated can vary
considerably. For the oil life system to work properly, you
must reset the system every time the oil is changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE OIL SOON light will come on.
Change your oil as soon as possible within the next two
times you stop for fuel. It is possible that, if you are
driving under the best conditions, the oil life system may
not indicate that an oil change is necessary for over a
year. However, your engine oil and ®lter must be
changed at least once a year and at this time the system
must be reset. Your dealer has GM-trained service
people who will perform this work using genuine GM
parts and reset the system. It is also important to check
your oil regularly and keep it at the proper level.
If the system is ever reset accidentally, you must change
your oil at 3,000 miles (5 000 km) since your last oil
change. Remember to reset the oil life system whenever
the oil is changed.
How to Reset the GM Oil Life System
The GM Oil Life System calculates when to change
your engine oil and ®lter based on vehicle use.
Anytime your oil is changed, reset the system so it can
calculate when the next oil change is required. If a
situation occurs where you change your oil prior to a
CHANGE OIL SOON message appearing on the DIC,
reset the system.
To reset the GM Oil Life System, after the oil has been
changed, use the following procedure:
1. Press the options button on the DIC until ENGINE
OIL MONITOR appears on the DIC screen.
2. Press the set/reset button to reset the system.
The next screen indicates that the engine oil monitor
system has been reset.
If the vehicle is equipped with the trip computer DIC,
when the gage button is pressed and the OIL LIFE
REMAINING mode appears, it should read 100 percent
OIL LIFE REMAINING.
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