engine PONTIAC GRAND PRIX 2004 Owner's Manual

Recirculation
h
(Recirculation):Press this button on the climate
control panel to activate the recirculation mode. With
this selection inside air is recirculated into the vehicle
along with some outside air. This mode reduces outside
air and odors from entering your vehicle. It may also
help to heat or cool the air inside your vehicle more
quickly.
When this button is pressed an indicator lamp to the
right of the button will come on to indicate that the
recirculation mode is on. An adjustment to the
instrument panel brightness control to the highest
setting may be required to see the indicator lamp.
The recirculation mode has a timer. After ®ve minutes,
the system's air inlet door will move slightly to allow
for ten percent fresh outside air to maintain interior air
quality. The only way to reset the system to full
recirculation is to restart the ®ve minute timer by
selecting vent/outside air and recirculation again.
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog or frost from the rear window. Be sure to
clear as much snow from the rear window as possible.
Notice:Don't use a razor blade or something
else sharp on the inside of the rear window. If you
do, you could cut or damage the defogger and
the repairs would not be covered by your warranty.
Do not attach a temporary vehicle license, tape,
a decal or anything similar to the defogger grid.
=(REAR):Press this button to turn the rear window
defogger on or off.
When this button is pressed an indicator light to the right
of the button will come on to show that the rear window
defogger is active. The instrument brightness control may
have to be adjusted to the highest setting during the
daytime in order to see the indicator light.
The rear window defogger will turn off approximately
20 minutes after the button is pressed. If reselected,
it will run another 20 minutes. The defogger can
be turned off by pressing the button again or by turning
off the engine.
Do not drive the vehicle until all windows are clear.
3-28

Outlet Adjustment
Rotate and turn the air
outlets, located in the
middle and at each
outboard side of the
instrument panel,
to adjust the direction
of the air¯ow.
See
Instrument Panel Overview on page 3-2for
additional information on location.
Operation Tips
·
Clear away any ice, snow or leaves from the air
inlets at the base of the windshield that may
block the ¯ow of air into your vehicle.
·Use of non-GM approved hood de¯ectors may
adversely affect the performance of the system.
·Keep the path under the front seats clear of objects
to help circulate the air inside of your vehicle more
effectively.
·If the air¯ow seems low when the fan is at the
highest setting, the passenger compartment air ®lter
may need to be replaced. See ªPassenger
Compartment Air Filterº following, for more
information on this ®lter.
Passenger Compartment Air Filter
The passenger compartment air ®lter is located
underneath the inlet grille, which is located under
the passenger side windshield wiper arm.
The ®lter traps most of the pollen from entering the
climate control system. Similar to the engine's air ®lter,
it may need to be changed periodically to insure
system performance. See
Part A: Scheduled
Maintenance Services on page 6-4for information
on scheduled changes for this ®lter.
3-29

Warning Lights, Gages and
Indicators
This part describes the warning lights and gages that
may be on your vehicle. The pictures will help you
locate them.
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause
an expensive repair or replacement. Paying attention to
your warning lights and gages could also save you
or others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle's functions. As you
will see in the details on the next few pages, some
warning lights come on brie¯y when you start the engine
just to let you know they're working. If you are familiar
with this section, you should not be alarmed when
this happens.Gages can indicate when there may be or is a problem
with one of your vehicle's functions. Often gages
and warning lights work together to let you know when
there's a problem with your vehicle.
When one of the warning lights comes on and stays on
when you are driving, or when one of the gages
shows there may be a problem, check the section that
tells you what to do about it. Follow this manual's
advice. Waiting to do repairs can be costly ± and even
dangerous. So please get to know your warning
lights and gages. They're a big help.
Your vehicle also has a Driver Information Center (DIC)
that works along with the warning lights and gages.
See
Driver Information Center (DIC) on page 3-45for
more information.
3-31

Speedometer and Odometer
The speedometer lets you see your speed in both
miles per hour (mph) and kilometers per hour (km/h).
The odometer, located on the Driver Information Center
(DIC) display, shows how far your vehicle has been
driven, in either miles or kilometers. See
DIC Controls
and Displays on page 3-45for more information.
If the vehicle has the Head-Up Display (HUD), the speed
will also be displayed on the HUD screen.
You may wonder what happens if a vehicle has to have
a new odometer installed. It the new one can be set
to the mileage total of the old odometer, than that will be
done. If it can't, than it will be set at zero and a label
must be put on the driver's door to show the old mileage
reading when the new odometer was installed.
Trip Odometer
The trip odometer, located in the Driver Information
Center (DIC), tells you how far you have driven since you
last reset it. You are able to see the miles (kilometers) for
two different trips. See
DIC Controls and Displays on
page 3-45for more information on setting the trip
odometer.
Tachometer
The tachometer displays the engine speed in revolutions
per minute (rpm).
Notice:Do not operate the engine with the
tachometer in the shaded warning area, or engine
damage may occur.
3-33

{CAUTION:
If the air bag readiness light stays on after you
start your vehicle, it means the air bag system
may not be working properly. The air bags in
your vehicle may not in¯ate in a crash, or they
could even in¯ate without a crash. To help
avoid injury to yourself or others, have your
vehicle serviced right away if the air bag
readiness light stays on after you start your
vehicle.
The air bag readiness light should ¯ash for a few
seconds when you turn the ignition key to RUN. If the
light doesn't come on then, have it ®xed so it will
be ready to warn you if there is a problem.
Up-Shift Light
This symbol can appear
on the instrument panel
if the vehicle has a
supercharged engine and
the shift lever is in the
MANUAL (M) transaxle
position.
It will appear as a prompt to up-shift to the next gear
using one of the TAP-ShiftŸ paddles located on
the steering wheel.
This symbol will also appear on the Head Up
Display (HUD).
See
Automatic Transaxle Operation on page 2-22for
more information.
3-35

Anti-Lock Brake System Warning
Light
If your vehicle has the
Anti-lock Brake System
(ABS), this light will come
on when your engine is
started and may stay on
for several seconds.
That's 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,
you still have brakes, but you don't have anti-lock
brakes. See
Brake System Warning Light on page 3-36.If the light stays on, turn the ignition to OFF. If the light
comes on when you're driving, stop as soon as
possible and turn the ignition off. Then start the engine
again to reset the system. If the light still stays on,
or comes on again while you're driving, your vehicle
needs service. If the regular brake system warning light
isn't on, you still have brakes, but you don't have
anti-lock brakes. If the brake system warning light is
also on, you don't have anti-lock brakes and there's a
problem with your regular brakes. See
Brake System
Warning Light on page 3-36.
The anti-lock brake system warning light will come on
brie¯y when you turn the ignition key to RUN. This
is normal. If the light doesn't come then, have it ®xed
so it will be ready to warn you if there is a problem.
3-37

Traction Control System (TCS)
Warning Light
If your vehicle has a 3800
V6 supercharged engine,
it may have the Traction
Control System (TCS).
This light may come on for the following reasons:
·If you turn the system off by pressing the TC (traction
control) button located on the center console, the
light will come on and 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 4-10for more information.
·If there's a brake system problem that is speci®cally
related to traction control, the TCS will turn off and
the warning light will come on. If your brakes begin to
overheat, the TCS will turn off and the warning light
will come on until the brakes cool down.
If the traction control system warning light comes on
and stays on for an extended period of time when the
system is turned on, your vehicle needs service.
Enhanced Traction System Warning
Light
If your vehicle has the
3800 V6 engine and
the Enhanced Traction
System (ETS), this
light may come on for
the following reason.
·If you turn the system off by pressing the TC (traction
control) button located on the center console, 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. See
Enhanced Traction System
(ETS) on page 4-11.
·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, your
vehicle needs service. Adjust your driving accordingly.
3-38

Engine Coolant Temperature
Warning Light
This light tells you that
the engine coolant has
overheated or the radiator
cooling fan is not working.
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.
See
Cooling System on page 5-32for more information.
Engine Coolant Temperature Gage
Your 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.
See
Cooling System on page 5-32for more information.
3-39

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.
3-40

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 doesn't come on, have it repaired.
This light will also come on during a malfunction in one
of two ways:
·Light FlashingÐ A mis®re condition has been
detected. A mis®re increases vehicle emissions
and may damage the emission control system
on your vehicle. Diagnosis and service may
be required.
·Light On SteadyÐ An emission control system
malfunction has been detected on your vehicle.
Diagnosis and service may be required.
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 ªIf the Light Is On Steadyº 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 ªIf the
Light Is On Steadyº 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. See
Filling Your Tank on page 5-7.
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.
3-41