2004 PONTIAC GRAND PRIX engine oil

ENGINE OIL MONITOR SYSTEM:This menu lets you
reset the engine oil monitor system for the vehicle.
See ªWhen to Change Engine Oil (GM Oil LIfe System)º
under
Engine Oil on page 5-16.
To reset the engine oil monitor system use the following
procedure:
1. Press the set/reset button to reset the engine oil
monitor system. The con®rmation, ENGINE OIL
MONITOR HAS BEEN RESET, will appear on the
next screen.
2. Press the options button again to advance to the
next screen.
Tire In¯ation Monitor System:If the vehicle has ABS,
this menu lets you set the tire in¯ation monitor system.
See ªTire In¯ation Monitor Systemº under
In¯ation ± Tire
Pressure on page 5-69for more information.
To set or reset the tire in¯ation monitor system use the
following procedures:
1. Press the set/reset button to reset the tire in¯ation
monitor system. TIRE INFLATION HAS BEEN SET
will appear on the next screen to con®rm this
system has been set.
2. Press the options button again to advance to the
next screen.
Select the set/reset button to return to the main
(date) screen.COMPASS CALIBRATION MODE:
Setting the Compass
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.
Compass variance is the difference between earth's
magnetic north and true geographic north. If not
adjusted to account for compass variance, the compass
in your vehicle could give you false readings.
In order to do this, you will have to set or calibrate the
compass to the variance zone in which you are located.
3-58

AJAR
This symbol appears
with the AJAR warning
message.
This warning message appears when a door, the trunk
or the hood of the vehicle is not properly closed.
The graphic will highlight the hood or trunk if either
one is not closed properly. The graphic will indicate a
highlighted, open door to show which door or doors
are not properly closed.
This warning message will display while the ignition is
in RUN. A chime will sound for two seconds when
the ignition is shifted out of PARK (P). 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.
CHANGE OIL SOON
This symbol appears with
the CHANGE OIL SOON
warning message.
This warning message indicates that the life of the engine
oil has expired and it should be changed within 200 miles.
See
Engine Oil on page 5-16for more information.
When you reset the CHANGE OIL SOON message by
acknowledging the message, you must also reset
the ENGINE OIL MONITOR SYSTEM screen under the
options menu on the DIC. See ªEngine Oil Monitor
Systemº in options under
DIC Controls and Displays
on page 3-45for more information.
This warning message will display while the ignition is in
RUN. 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.
3-66

To avoid added strain, turn off the air conditioner if it is
on. When the coolant temperature returns to normal,
the air conditioning compressor can be turned back on.
This warning message will display only while the
ignition is in RUN. A chime will sound continuously
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.HOT ENGINE OIL. REDUCE SPEED
This warning message will display when the vehicle's
engine oil is above the proper engine operating
temperature. Reduce the speed of the vehicle. If the
warning message continues to display, have the vehicle
serviced as soon as possible. A chime will sound
continuously when this message is displayed. Press the
set/reset button to acknowledge this warning message.
This clears 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.
3-71

LOW OIL LEVEL
This symbol appears with
the LOW OIL LEVEL
warning message.
This warning message appears when the vehicle's
engine oil is low. Fill the oil to the proper level as soon
as possible. See
Engine Compartment Overview on
page 5-12for engine oil ®ll location. Also, seeEngine Oil
on page 5-16for information on the kind of oil to use
and proper oil level. SeeSupercharger Oil on page 5-21if the vehicle has a supercharged engine for information
on the kind of oil to use and proper oil level.
This warning message will display while the ignition is
in RUN. A chime will sound for 60 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.
LOW OIL PRESSURE
Notice:If the LOW OIL PRESSURE warning
message appears on the DIC display, stop the
vehicle immediately. Do not drive the vehicle until
the cause of the low oil pressure is corrected.
Severe engine damage can result from driving a
vehicle with low oil pressure. See ªEngine Oilº in
the Service and Appearance Care section for
more information.
This symbol appears with
the LOW OIL PRESSURE
warning message.
3-76

This warning message will appear when the vehicle's
engine oil pressure is low. The low oil pressure warning
light will also appear on the instrument panel.
Stop the vehicle immediately, as engine damage can
result from driving a vehicle with low oil pressure.
Have the vehicle serviced as soon as possible when
this warning message is displayed.
This warning message will display only while the ignition
is in RUN. A chime will sound continuously 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.LOW WASHER FLUID
This symbol will appear
with the LOW WASHER
FLUID warning message.
This warning message appears when the windshield
washer ¯uid is low. Fill the windshield washer reservoir
as soon as possible. See
Engine Compartment
Overview on page 5-12for location of the windshield
washer reservoir. Also, seeWindshield Washer Fluid on
page 5-43for more information.
This warning message will display only while the ignition
is in RUN. A chime will sound continuously 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.
3-77

When you want to leave the freeway, move to the
proper lane well in advance. If you miss your exit,
do not, under any circumstances, stop and back up.
Drive on to the next exit.
The exit ramp can be curved, sometimes quite sharply.
The exit speed is usually posted. Reduce your speed
according to your speedometer, not to your sense
of motion. After driving for any distance at higher
speeds, you may tend to think you are going slower
than you actually are.
Before Leaving on a Long Trip
Make sure you're ready. Try to be well rested. If you
must start when you're not fresh Ð such as after a day's
work Ð don't plan to make too many miles that ®rst
part of the journey. Wear comfortable clothing and shoes
you can easily drive in.
Is your vehicle ready for a long trip? If you keep it
serviced and maintained, it's ready to go. If it needs
service, have it done before starting out. Of course,
you'll ®nd experienced and able service experts in
GM dealerships all across North America. They'll be
ready and willing to help if you need it.Here are some things you can check before a trip:
·Windshield Washer Fluid:Is the reservoir full?
Are all windows clean inside and outside?
·Wiper Blades:Are they in good shape?
·Fuel, Engine Oil, Other Fluids:Have you checked
all levels?
·Lamps:Are they all working? Are the lenses clean?
·Tires:They are vitally important to a safe,
trouble-free trip. Is the tread good enough for
long-distance driving? Are the tires all in¯ated to
the recommended pressure?
·Weather Forecasts:What's the weather outlook
along your route? Should you delay your trip a
short time to avoid a major storm system?
·Maps:Do you have up-to-date maps?
4-25

Maintenance When Trailer Towing
Your vehicle will need service more often when you're
pulling a trailer. SeePart A: Scheduled Maintenance
Services on page 6-4for more information. Things that
are especially important in trailer operation are automatic
transaxle ¯uid (don't over®ll), engine oil, drive belts,
cooling system and brake system. Each of these is
covered in this manual, and the Index will help you ®nd
them quickly. If you're trailering, it's a good idea to review
this information before you start your trip.
Check periodically to see that all hitch nuts and bolts
are tight.
Engine Cooling When Trailer Towing
Your cooling system may temporarily overheat during
severe operating conditions. SeeEngine Overheating
on page 5-29.
4-44

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside
of Your Vehicle...........................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-16
Supercharger Oil..........................................5-21
Engine Air Cleaner/Filter................................5-22
Automatic Transaxle Fluid..............................5-24
Engine Coolant.............................................5-26
Radiator Pressure Cap..................................5-29
Engine Overheating.......................................5-29
Cooling System............................................5-32
Power Steering Fluid.....................................5-42
Windshield Washer Fluid................................5-43Brakes........................................................5-45
Battery........................................................5-48
Jump Starting...............................................5-49
Headlamp Aiming...........................................5-56
Bulb Replacement..........................................5-59
Halogen Bulbs..............................................5-59
Headlamps and Sidemarker Lamps.................5-60
Front Turn Signal, Parking and
Fog Lamps...............................................5-62
Center High-Mounted Stoplamp (CHMSL).........5-64
Taillamps, Turn Signal, and Stoplamps............5-64
Back-Up Lamps............................................5-65
Replacement Bulbs.......................................5-66
Windshield Wiper Blade Replacement..............5-67
Tires..............................................................5-68
In¯ation -- Tire Pressure................................5-69
Tire Pressure Monitor System.........................5-70
Tire Inspection and Rotation...........................5-71
When It Is Time for New Tires.......................5-72
Buying New Tires.........................................5-73
Uniform Tire Quality Grading..........................5-74
Wheel Alignment and Tire Balance..................5-75
Wheel Replacement......................................5-75
Tire Chains..................................................5-77
Section 5 Service and Appearance Care
5-1