2005 PONTIAC GRAND PRIX engine

Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel. See
Gasoline Octane on page 5-5. Poor fuel quality will
cause your engine not to run as efficiently as designed.
You may notice this as stalling after start-up, stalling
when you put the vehicle into gear, misring, hesitation
on acceleration, or stumbling on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the
light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
your dealer can check the vehicle. Your dealer has
the proper test equipment and diagnostic tools to x any
mechanical or electrical problems that may have
developed.Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this
inspection could prevent you from getting a vehicle
registration.
Here are some things you need to know to help your
vehicle pass an inspection:
Your vehicle will not pass this inspection if the check
engine light is on or not working properly.
Your vehicle will not pass this inspection if the OBD
(on-board diagnostic) system determines that critical
emission control systems have not been completely
diagnosed by the system. The vehicle would be
considered not ready for inspection. This can happen
if you have recently replaced your battery or if your
battery has run down. The diagnostic system is
designed to evaluate critical emission control systems
during normal driving. This may take several days
of routine driving. If you have done this and your vehicle
still does not pass the inspection for lack of OBD
system readiness, your GM dealer can prepare the
vehicle for inspection.
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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,
or it may come on while
the vehicle is being driven.
This indicates that oil is not going through the engine
quickly enough to keep it lubricated. 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. SeeFuses and
Circuit Breakers on page 5-103.
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.
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 3-16for more information.
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Options
4(Options):Press this button to access the Date,
Language, Display Units, Daytime Display
Enhancements, Engine Oil Monitor System,
Tire Ination Monitor System, and Personal
Programming modes.
Date:This menu sets the date.
The time is set through the radio. SeeSetting the Time
on page 3-93for more information.
To set the date, use the following procedure:
1. Press the options button until the date is displayed
on the DIC.
2. Press the set/reset button to access the RESET
YEAR screen. The second position in the year
will be selected. Press and hold the set/reset button
to scroll through the available digits. Release the
button when the correct digit appears.
3. Press the options button to advance to the rst
position in the year. Press and hold the set/reset
button to scroll through the available digits. Release
the button when the correct digit appears.
4. Press the options button to advance to the months
of the year.5. Press the set/reset button to scroll through the
months of the year, releasing the button when
the correct month appears.
6. Press the options button to advance to the
days of the month.
7. Press the set/reset button to scroll through the
days of the month, releasing the button when
the correct day appears.
8. Press the options button again to advance to the
main date screen. The screen will now display the
new date.
Language:This menu allows the selection of the
language in which the DIC messages will appear. The
DIC can be programmed to one of three languages:
English, French or Spanish. The message on the HUD,
if equipped, will also appear in the language selected.
To change the language, use the following procedure:
1. Press the options button to enter the language
screen.
2. Press the set/reset button to scroll through and
set the language choice.
3. Press the options button again to advance to the
next screen.
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Display Units:This menu allows selection of
measurements to be displayed in English or metric
units. The messages on the HUD, if equipped, and the
instrument panel cluster will also appear with the
type of measurement selected.
To set the measurement when Display Units is shown,
use the following procedure:
1. Press the set/reset button to select ENGLISH or
METRIC.
2. Press the options button again to advance to the
next screen.
DAYTIME DISPLAY ENHANCEMENTS:This menu
allows selection of the color of the display message.
When ON is selected for the daytime enhancement,
the messages will appear black on a red screen. This
combination makes it easier to see the DIC messages
during the daytime. When OFF is selected, or when
the headlamps are on, the messages will appear red
on a black background.
To set the daytime display enhancements, use the
following procedure:
1. Press the set/reset button to select OFF or ON.
2. Press the options button again to advance to
the next screen.ENGINE OIL MONITOR SYSTEM:This menu allows
the engine oil monitor system to be reset. See
Engine Oil Life System on page 5-18.
To reset the engine oil monitor system, use the following
procedure:
1. Press the set/reset button after an oil change to
reset the engine oil monitor system. The
conrmation, ENGINE OIL MONITOR SYSTEM
HAS BEEN RESET, will appear on the screen and
a chime will sound.
2. Press the options button again to advance to the
next screen.
Tire Ination Monitor System:If the vehicle has ABS,
this menu sets the tire ination monitor system. See “Tire
Ination Monitor System” underInation - Tire Pressure
on page 5-64for more information.
To set or reset the tire ination monitor system, use the
following procedure:
1. Press the set/reset button to reset the tire ination
monitor system. The message, TIRE INFLATION
HAS BEEN SET, will appear on the screen if
the Check Tire Pressure message, indicating
an irregularity in the pressure of one of the
tires, had previously appeared on the DIC.
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REMOTE START:If your vehicle has the remote start
feature, this screen allows this feature to be turned
OFF or ON. The remote start feature allows you to start
the engine from outside of the vehicle using your
remote keyless entry transmitter. See “Remote Vehicle
Start” underRemote Keyless Entry System Operation
on page 2-5for more information.
If OFF is selected, the remote start feature will be
disabled.
If ON is selected, the remote start feature will be
enabled.
To program this mode, use the following procedure:
1. Press the set/reset button to scroll to OFF or ON.
2. Press the options button again to advance to
the next screen.
PROGRAMMING FINISHED will appear on the next
screen. This conrms that the personal options
programming is complete.
DISPLAY OFF will appear on the next screen. The
screen will count down and then go blank. Press the
options button to advance to a new screen.DIC Controls and Displays
(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 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 the vehicle’s
systems may display on the DIC screen.
The outside temperature automatically appears on the
bottom right corner of the DIC display screen. If the
outside temperature is below 38°F (3°C), 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 GM dealer.
The vehicle’s transaxle position and the direction the
vehicle is traveling will also appear on the DIC screen.
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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 “Setting the Compass” later in this section for
more information.
The buttons on the DIC trip computer are gages, trip
odometer, set/reset, options, and fuel.
Gages
2(Gages):Press this button to access the OIL LIFE
REMAINING, TRANSMISSION FLUID TEMPERATURE,
BATTERY, ENGINE HOURS, ENGINE BOOST, and
MAXIMUM Gs modes.OIL LIFE REMAINING:Press the gages button until
OIL LIFE REMAINING is displayed. This screen
indicates the percentage of oil life in the vehicle’s engine
that has not degraded. SeeEngine Oil on page 5-14
for more information.
After the oil has been changed in the vehicle, reset the
ENGINE OIL MONITOR screen in the options menu.
See “Engine Oil Monitor System” under “Options” later in
this section.
Press the gages button again to advance to the next
screen.
TRANSMISSION FLUID TEMP:This screen displays
this message along with the temperature (F° or C°)
of the transmission uid.
Press the gages button again to advance to the next
screen.
BATTERY:This screen displays the amount of volts
the battery is generating.
Your vehicle’s charging system regulates voltage based
on the state of the battery. The battery voltage may
uctuate when viewing this information on the DIC. This
is normal.
Press the gages button again to advance to the next
screen.
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ENGINE HOURS:This screen shows the number of
cumulative hours the engine has operated while the key
was in the RUN position. This screen cannot be reset.
Press the gages button to scroll to the next screen.
ENGINE BOOST:If the vehicle has the supercharged
engine, this screen will appear. It shows a graphic
that indicates the amount of boost the engine is
receiving.
Press the gages button again to scroll to the next
screen.
MAXIMUM Gs:If you have the GXP option, this screen
will appear. It shows acceleration, deceleration and
lateral-acceleration information. This screen will
only display when the vehicle is stopped. If you try to
select this screen while the vehicle is moving, the
message MAXIMUM Gs NOT WHILE MOVING will
display.
Press the gages button again to scroll to the next
screen.Trip Odometer
3(Trip Odometer):Press this button to access the
Odometer, Trip Distances, AVERAGE SPEED, and
TIME ELAPSED modes.
Odometer:When the trip odometer button is pressed,
the rst menu displayed on the DIC screen is the
odometer reading, or cumulative mileage of the vehicle.
The odometer cannot be reset.
Press the trip odometer button again 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.
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 access the
odometer.
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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.
Average Speed:The average speed is displayed in
miles per hour (mph) or kilometers per hour (km/h). The
average speed is calculated from the various vehicle
speeds recorded since the last reset of this menu item.
To reset the average speed, press the set/reset
button. The display will return to zero.
Press the trip odometer button again to advance to the
next screen.Time Elapsed:This screen can be used as a
stopwatch. The display can show the hours, minutes
and seconds. The elapsed time indicator will record up
to 99 hours, 59 minutes and 59 seconds, then it will
reset to zero and continue counting.
To set the time elapsed function, use the following
procedures:
1. Press the set/reset button for less than two seconds
to start or stop the timer.
2. Press and hold the set/reset button for more than
two seconds to reset the timer back to zero.
Set/Reset
r(Set/Reset):Press this button to set or reset a
mode item when using the trip odometer or option
buttons.
Options
4(Options):Press this button to access the Date,
Language, Display Units, Daytime Display
Enhancements, Engine Oil Monitor System, Tire
Ination Monitor System, Compass Calibration, and
the Personal Programming modes.
Date:This menu sets the date.
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