Engine BUICK PARK AVENUE 2002 Owner's Guide

2-74
Speedometer and Odometer
Your speedometer lets you see your speed in both miles
per hour (mph) and kilometers per hour (km/h). Your
odometer shows how far your vehicle has been driven,
in either miles (used in the United States) or kilometers
(used in Canada).
Your vehicle has a tamper
-resistant odometer. You may
wonder what happens if your vehicle needs a new
odometer installed. If possible, the new one has to be set
to the same reading the old one had. If it can't be, then
it's set at zero and a label must be put on the driver's
door to show the old mileage reading and when the new
odometer was installed.
Trip Odometer
A trip odometer can tell how far you've driven since
you last set it back to zero. To reset it, push the RESET
button. The trip odometer is reset through the Driver
Information Center (DIC) if your vehicle is equipped
with this feature.
Tachometer
The tachometer tells you
how fast the engine is
running. It displays
engine speed in thousands
of revolutions per
minute (rpm).
NOTICE:
Do not operate the engine with the tachometer in
the shaded area, or engine damage may occur.

2-75
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 briefly 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. Please 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 may also have a Driver Information Center
(DIC) that works along with the warning lights and
gages. See ªDriver Information Centerº in the Index.

2-79 Anti-Lock Brake System Warning Light
With the anti-lock brake
system, the light(s) will
come on when your engine
is started and may stay
on for several seconds.
That's normal.
If the light stays on and the chime sounds, turn the
ignition to OFF. Or, if the light comes on and the chime
sounds 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 and the chime
sounds, or the light 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 regular brake
system warning light is also on, you don't have anti
-lock
brakes and there's a problem with your regular brakes.
See ªBrake System Warning Lightº earlier in
this section.
The anti
-lock brake system warning light should come
on briefly when you turn the ignition key to RUN. If the
light doesn't come on then, have it fixed so it will be
ready to warn you if there is a problem.
Traction Control System Warning
Light (Option)
This warning light should
come on briefly when the
engine is started.
If the warning light doesn't come on then, have it fixed
so it will be ready to warn you if there's a problem. If it
stays on, or comes on when you're driving, there may be
a problem with your traction control system and your
vehicle may need service. When this warning light is
on, the system will not limit wheel spin. Adjust your
driving accordingly.

2-80
The traction control system warning light may come on
for the following reasons:

If you turn the system off by pressing the button
located on the end of the shift lever, the warning
light will come on and stay on. To turn the system
back on, press the button again. The warning light
should go off. See ªTraction Control Systemº in the
Index for more information.

If there's a brake system problem that is specifically
related to traction control, the traction control system
will turn off, the warning light will come on and the
chime will sound.

If the traction control system is affected by an
engine
-related problem, the system will turn off,
the warning light will come on and the chime
will sound.
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.
Engine Coolant Temperature Gage
This gage measures the
temperature of the vehicle's
engine. If the pointer
moves into the red area,
the engine is too hot.
A temperature indicator
light will turn on and a
chime will sound.
If you have been operating your vehicle under normal
driving conditions, and the temperature indicator light
comes on, you should pull off the road, stop your
vehicle and turn off the engine as soon as possible.

2-81 Malfunction Indicator Lamp (Service
Engine Soon 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 SERVICE ENGINE SOON 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:
Modifications 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 the SERVICE ENGINE SOON
light to come on. Modifications 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.

2-82
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 Flashing
-- A misfire condition has been
detected. A misfire increases vehicle emissions and
may damage the emission control system on your
vehicle. Dealer or qualified service center diagnosis
and service may be required.

Light On Steady
-- An emission control
system malfunction has been detected on your
vehicle. Dealer or qualified service center 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 flashing and remains on steady,
see ªIf the Light Is On Steadyº following.
If the light continues to flash, 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 flashing,
follow the previous steps, and drive the vehicle to your
dealer or qualified service center for service.

2-83
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 ªFilling Your Tankº in the Index. 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.
Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out. A few driving trips should turn the light off.Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel. See
ªFuelº in the Index. 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, misfiring, 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,
have your dealer or qualified service center check the
vehicle. Your dealer has the proper test equipment and
diagnostic tools to fix any mechanical or electrical
problems that may have developed.

2-84
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 in order to help
your vehicle pass an inspection:
Your vehicle will not pass this inspection if the
SERVICE ENGINE SOON 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, see your dealer or qualified service center to
prepare the vehicle for inspection.
Oil Pressure Light
This light tells you if
there could be a problem
with your vehicle's engine
oil pressure.
The oil pressure light can come on briefly when you
turn your key to RUN. It goes off once you turn the key
to START. That's just a check to be sure the light works.
This is normal and doesn't show a problem. If it doesn't
come on and then go off, be sure to have it fixed so it
will be there to warn you if there is a problem.
When this light comes on and stays on, and a chime
sounds, it means oil isn't going through the engine
properly. The oil could be low, or there might be some
other oil problem. See your dealer for service.

2-85
CAUTION:
Don't keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches fire. You or others could be burned.
Check your oil as soon as possible and have your
vehicle serviced.
NOTICE:
Damage to your engine from neglected oil
problems can be costly and is not covered
by your warranty.
Service Vehicle Soon Light
This light will come
on if your vehicle has
certain non
-emission
related problems.
For example, if the entire electrical system fails to
send and receive messages from the vehicle's
components, the SERVICE VEHICLE SOON
warning light comes on.
These problems may not be obvious and may affect
vehicle performance or durability. Consult a qualified
dealership for necessary repairs to maintain top vehicle
performance. This light will come on briefly when the
ignition is turned on to show that it is working properly.

2-89
Instantaneous Fuel Economy: Press the FUEL INFO
button until the display shows FUEL ECONOMY INST.
Instantaneous fuel economy varies with your driving
conditions, such as acceleration, braking and the grade
of the road being traveled. The RESET button does not
function in this mode.
Average Fuel Economy: Press the FUEL INFO button
until the display shows FUEL ECONOMY AVERAGE.
Average fuel economy is viewed as a long term
approximation of your overall driving conditions. To
learn the average fuel economy from a new starting
point, press the RESET button while the average fuel
economy is displayed in the DIC.
GAGE INFO
Coolant Temperature: Press the GAGE INFO button
until COOLANT TEMP appears in the display. If there
are no problems detected with the temperature,
COOLANT TEMP NORMAL will appear in the
display. If the temperature is too high, COOLANT
TEMP HOT will appear in the display. If you see the
COOLANT TEMP HOT message, your engine is
overheated. You should pull off the road, stop your
vehicle and turn off your engine as soon as possible.
This manual explains what to do. See ªEngine
Overheatingº in the Index.Tire Pressure: Press the GAGE INFO button
until TIRE PRESSURE appears in the display.
TIRE PRESSURE NORMAL is displayed when
the Check Tire Pressure System believes your vehicle's
tire pressures are normal. If a potential tire pressure
problem is detected, the display will show TIRE
PRESSURE LOW.
Battery Volts: Press the GAGE INFO button until the
display shows BATTERY STATE. If the voltage is
normal the display will show BATTERY STATE
NORMAL. If the voltage drops below 10.5 volts, the
display will show BATTERY STATE LOW. If the
voltage is above 16 volts, the display will show
BATTERY STATE HIGH. If the display shows the high
or low message, you need to have your battery checked.
Oil Pressure: Press the GAGE INFO button until
OIL PRESSURE appears in the display. If there are no
problems detected with the oil pressure, the display will
show OIL PRESSURE NORMAL. If a low oil pressure
condition is detected, the display will show OIL
PRESSURE LOW. If you see the OIL PRESSURE
LOW message, you could be low on oil or your oil is
not going through the engine properly. See your dealer
for service.