2000 PONTIAC BONNEVILLE low oil pressure

2-74
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 Gage
United States Canada
Readings above the red warning zone indicate the
normal operating range. Oil pressure may vary with
engine speed, outside temperature and oil viscosity.
A reading in the red warning zone may be caused by
a low oil level or another problem causing low oil
pressure. On vehicles with the systems monitor, the
CHECK GAGES light will come on and a warning
chime will sound.

2-75
On vehicles with the optional DIC, a CHECK GAGES
OIL PRESSURE message will be displayed and a
warning chime will sound. See ªDIC Warnings and
Messagesº in the Index for more information.
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.
Check Oil Level Warning Light
(If Equipped)
The CHECK OIL LEVEL
light is part of the systems
monitor. This light comes
on for five seconds as a bulb
check each time the ignition
key is turned to RUN.
If the engine oil is more than 1 quart (0.95 L) low and
the engine has been shut off for at least eight minutes,
the CHECK OIL LEVEL light will come on and a
chime will sound the next time you start your vehicle.
If the CHECK OIL LEVEL light comes on, the engine
oil level should be checked at the dipstick then brought
up to the proper level, if necessary. See ªEngine Oilº in
the Index.
On vehicles with the optional DIC, the CHECK OIL
LEVEL light is replaced by an OIL LEVEL LOW
message. See ªDIC Warnings and Messagesº in the
Index for more information.

2-79 Boost Gage (If Equipped)
Vehicles equipped with
the supercharged engine
have this boost gage that
indicates vacuum during
light to moderate
throttle and boost under
heavier throttle.
The gage displays the air pressure level going into the
engine's combustion chamber.
The gage is automatically centered at zero every time
the ignition key is turned to RUN. Actual vacuum or
boost is displayed from this zero point. Changes in
ambient pressure, such as driving in mountains and
changing weather, will slightly change the zero reading.
Head-Up Display (Option)
CAUTION:
If the HUD image is too bright, or too high in
your field 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 field of view.
If you have the optional Head-Up Display (HUD), you
can see some of the driver information also available on
your instrument panel cluster. The information may be
displayed in English or metric units and appears as a
reflection on the windshield. The HUD shows:

Speedometer Reading

Turn Signal Indicators

High
-beam Indicator Symbol

CHECK GAGES Message (for low oil pressure,
high coolant temperature, low oil level, high/low
battery, brake, ABS and air bag.)

Low Fuel Warning Symbol

Radio Frequency and Playback Mode

2-83
The following warning lights are displayed in the
systems monitor:

CHECK OIL LEVEL: This message could mean
your oil level is low. If it comes on for more than
five seconds, see ªCheck Oil Level Warning Lightº
in the Index.

WASHER FLUID: This message means your
washer fluid tank is less than about 30 percent full.
If this light comes on, see ªLow Washer Fluid
Warning Lightº in the Index.

DOOR AJAR: This message means that either the
driver's door or one of the passenger's doors is not
completely closed. If this light comes on, see ªDoor
Ajar Lightº in the Index.

TIRE PRESS: This message means one or more of
your tires may be low. See ªCheck Tire Pressure
Systemº in the Index.

CHECK GAGES: This means one or more of your
gages may be in their respective warning bands.
If this light comes on, see ªCheck Gages Warning
Lightº in the Index.

TRUNK AJAR: This message means your trunk is
not completely closed.
The following buttons are on the systems monitor
control panel which is located to the right of the
instrument panel cluster:

E/M: Use this button to change the display between
English and metric units.

TRIP RESET: This button allows you to reset your
trip odometer. To reset the trip odometer, press the
TRIP RESET button. The trip odometer will now
accumulate miles (kilometers) until the next reset.

TIRE PRESS RESET: This button allows you to
reset the check tire pressure system. To reset the
system or for more information, see ªCheck Tire
Pressure Systemº in the Index.

2-86
Battery Volts: On vehicles with a supercharged engine,
press the SELECT button until the display shows
BATTERY VOLTS. If the voltage is normal the display
will show BATTERY ## VOLTS. If the voltage drops
below 10.5 volts for 30 seconds, the battery volts
display will show BATTERY LOW. If the voltage is
above 16.2 volts for 30 seconds, the battery volts
display will show BATTERY HIGH. If the display
shows the high or low message, you need to have your
battery checked.
GM Oil Life System
: Press the SELECT button
until OIL LIFE appears in the display. The OIL LIFE
NORMAL display will show an estimate of the oil's
remaining useful life. When the oil life index is less than
10%, an ENGINE OIL CHANGE SOON message will be
displayed and the oil life display will show OIL LIFE
CHANGE. When the oil life index is less than 5%, an
ENGINE OIL CHANGE NOW message will be displayed
and the oil life display will show OIL LIFE CHANGE
NOW. When you have the oil changed according to the
maintenance schedule, you will have to reset the Oil Life
System. To reset the Oil Life System, see ªOil Life
Systemº in the Index. Also, see ªEngine Oil, When to
Changeº and ªMaintenance Scheduleº in the Index.Tire Pressure Status: Press the SELECT 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 problem is detected, the display will
show CHECK TIRE PRESSURE and the tire pressure
status will show TIRE PRESSURE LOW. If you see the
CHECK TIRE PRESSURE message, you should stop as
soon as you can and check all your tires for damage.
(If a tire is flat, see ªIf a Tire Goes Flatº in the Index.)
Also check the tire pressure in all four tires as soon as
you can. See ªInflation
- Tire Pressureº and ªCheck
Tire Pressure Systemºin the Index.

2-95
Parallel Park Assist (If Equipped)
The parallel park assist mirror, which tips the passenger
mirror while the vehicle is in REVERSE (R), can be
made active or inactive through the DIC. When TILT
MIRROR
- OFF/ON appears on the display, use the
RESET button to toggle the arrow between OFF and
ON. When you have made your choice, press the
SELECT button to record your selection. For more
information on this feature, see ªMirrorsº in the Index.
Driver ID
This feature displays the DRIVER ID, as identified by
the DIC. If this feature is ON, the DRIVER ID will be
displayed every time the ignition is turned on. If the
DRIVER ID is OFF, the DRIVER ID can be displayed
by pressing either a button on the remote keyless entry
transmitter or a memory seat button. Vehicles are
delivered with this feature ON.
DIC Warnings and Messages
Other messages or warnings may appear in the DIC
display. For Canadian drivers, in addition to the DIC
message your DIC will display EXP with a number after
it which reflects the following messages:
EXP (Export ID) Warning Message
3 SERVICE VEHICLE SOON. . . . . . . . . . . . . . . . .
11 CHECK GAGES LOW FUEL. . . . . . . . . . . . . . .
16 ENGINE HOT A/C DISABLED. . . . . . . . . . . . .
20 TURN SIGNAL ON?. . . . . . . . . . . . . . . . . . . . . .
24 TRUNK AJAR. . . . . . . . . . . . . . . . . . . . . . . . . . .
25 WASHER FLUID LOW. . . . . . . . . . . . . . . . . . . .
27 BATTERY SAVER ACTIVE. . . . . . . . . . . . . . . .
33 STARTING DISABLED
- THEFT * . . . . . . . . . .
34 SERVICE THEFT SYSTEM. . . . . . . . . . . . . . . .
35 CHECK GAGES OIL PRESSURE *. . . . . . . . . .
36 OIL LEVEL LOW. . . . . . . . . . . . . . . . . . . . . . . .
37 BRAKE FLUID LOW *. . . . . . . . . . . . . . . . . . . .
40 ALARM OCCURRED. . . . . . . . . . . . . . . . . . . . .
44 CHECK GAGES TEMPERATURE *. . . . . . . . .
54 SERVICE STABILITY SYSTEM. . . . . . . . . . . .
61 CHECK GAS CAP. . . . . . . . . . . . . . . . . . . . . . . .
81 ENGINE OIL CHANGE SOON. . . . . . . . . . . . .
82 ENGINE OIL CHANGE NOW. . . . . . . . . . . . . .

6-11
Supercharged Engine (If Equipped)
Your vehicle may have a 3800 V6 (L67) Supercharged
engine. The supercharger is a device designed to pump
more air into the engine than it would normally use.
This air, mixed with fuel, creates increased engine
power. Since the supercharger is a pump and is driven
from an engine accessory drive belt, increased pressure
is available at all driving conditions.
The Powertrain Control Module (PCM) works with a
vacuum control to regulate the increased pressure required
during specific driving conditions. When this increased
pressure or boost is not desired, such as during idling and
light throttle cruising, the excess air that the supercharger is
pumping is routed through a bypass. All of these controls,
working together, provide high performance character and
fuel efficiency in the 3800 V6 Supercharged engine.
Engine Oil
If the OIL LEVEL LOW
message appears on the DIC,
or the CHECK OIL LEVEL
light appears on the
instrument panel, it means
you need to check your
engine oil level right away.For more information, see ªCheck Oil Level Lightº or
ªDIC Warnings and Messagesº in the Index.
You should check your engine oil level regularly; this is
an added reminder.
Checking Engine Oil
It's a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil must
be warm and the vehicle must be on level ground.
The engine oil dipstick is
located behind the engine
fans and in front of the
engine oil fill cap. The top
of the dipstick is a round
yellow loop.
Turn off the engine and give the oil several minutes to
drain back into the oil pan. If you don't, the oil dipstick
might not show the actual level.

6-18
Supercharger Oil
Unless you are
technically qualified
and have the proper
tools, you should let
your dealer or a
qualified service
center perform
this maintenance.
When to Check
Check oil level every 30,000 miles (50 000 km) or every
36 months, whichever occurs first.
What Kind of Oil to Use
Use only the recommended supercharger oil. See
ªRecommended Fluids and Lubricantsº in the Index.
How to Check and Add Oil
Check oil only when the engine is cold. Allow the
engine to cool two to three hours after running.
CAUTION:
If you remove the supercharger oil fill plug while
the engine is hot, pressure may cause hot oil to
blow out of the oil fill hole. You may be burned.
Do not remove the plug until the engine cools.
1. Clean the area around the oil fill plug before
removing it.
2. Remove the oil fill plug using a 3/16 inch
Allen wrench.
3. The oil level is correct when it just reaches the
bottom of the threads of the inspection hole.
4. Replace the oil plug with the O
-ring in place.
Torque to 88 lb
-in (10 N´m).