2001 BUICK LESABRE engine

2-79
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
If your vehicle has the
standard instrument panel
cluster, this light will come
on if there is a problem
with your vehicle's engine
oil pressure.
If your vehicle has the optional gage cluster, you
can read your oil pressure directly from the Driver
Information Center (DIC). See ªDIC Displays and
Controlsº in the Index.
The oil pressure light will come on briefly when you
turn your key to RUN. 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.

2-80
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.
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
and stay on if your vehicle
has certain non
-emission
related problems.
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.
Security Light
Your vehicle may have a
content theft
-deterrent
alarm system. With this
system, the SECURITY
light will flash as you
open the door (if your
ignition is off).
For more information see ªContent Theft
-Deterrentº in
the Index.

2-83

FUEL INFO: Press this button to display
fuel information.
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.
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.
Press the FUEL INFO button until the display shows
FUEL RANGE. The fuel range will calculate the
remaining distance you can drive without refueling.
This calculation is based on the average fuel
economy for the last 25 miles (40.25 km) driven,
and the fuel remaining in the fuel tank. The RESET
button does not function in this mode.
GAGE INFO: Use this button to display oil
pressure, oil life, coolant temperature, tire pressure
and battery information.
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, your vehicle could be low on oil
or the oil is not going through the engine properly.
See your dealer for service.
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, the 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.

2-84
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 16.2 volts, the display will show BATTERY
STATE HIGH. If the display shows the high or low
message, you need to have your battery and charging
system checked.
Press the GAGE INFO button until OIL LIFE
INDEX appears in the display. The OIL LIFE
INDEX NORMAL display will show an estimate
of the oil's remaining useful life. When the oil life
index is less than 10%, the display will show OIL
LIFE INDEX CHANGE OIL. When you have the
oil changed according to the maintenance schedule
(see ªMaintenance Scheduleº in the Index), you
will have to reset the oil life monitor. To reset the
Oil Life System (Index), see ªOil Life Systemº
or ªEngine Oil, When to Changeº in the Index.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 CHECK TIRE PRESSURE. 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 Systemº in the Index. There are times
when you will have to reset (calibrate) the Check Tire
Pressure System. See ªCheck Tire Pressure Systemº
in the Index.

RESET: This button, used along with other buttons,
will reset system functions.

ENG/MET: Use this button to change the display
between English and metric units.

2-85 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
20 TURN SIGNAL STILL ON?. . . . . . . . . . . . . . . . .
24 TRUNK AJAR. . . . . . . . . . . . . . . . . . . . . . . . . . . .
25 WINDSHIELD WASHER FLUID LOW. . . . . . . .
27 BATTERY SAVER ACTIVE. . . . . . . . . . . . . . . . .
36 ENGINE OIL LOW
- CHECK LEVEL . . . . . . . . .
40 THEFT ATTEMPT DETECTED. . . . . . . . . . . . . .
54 SERVICE STABILITY SYSTEM. . . . . . . . . . . . .
55 STABILITY SYSTEM ACTIVE. . . . . . . . . . . . . .
61 GAS CAP LOOSE
- CHECK CAP . . . . . . . . . . . .
81 CHANGE ENGINE OIL SOON. . . . . . . . . . . . . .
91 TRACTION CONTROL SYSTEM ACTIVE. . . .
102 CHECK CHARGE SYSTEM. . . . . . . . . . . . . . . .
139 DOOR AJAR. . . . . . . . . . . . . . . . . . . . . . . . . . . .
144 CHECK TIRE PRESSURES. . . . . . . . . . . . . . . . The EXP codes are used to make translation from
English to other languages easier.
Pressing any of the DIC control buttons will remove the
messages or warnings from the DIC display.
SERVICE STABILITY SYSTEM
- 54: If you
ever see the SERVICE STABILITY SYSTEM message,
it means there may be a problem with your stability
enhancement system. If you see this message, try to
reset the system (stop; turn off the engine; then start the
engine again). If the SERVICE STABILITY SYSTEM
message still comes on, it means there is a problem. You
should see your dealer for service. Reduce your speed
and drive accordingly.
STABILITY SYSTEM ACTIVE
- 55: You may see
the STABILITY SYSTEM ACTIVE message on the
Driver Information Center. It means that an advanced,
computer
-controlled system has come on to help your
vehicle continue to go in the direction in which you're
steering. This stability enhancement system activates
when the computer senses that your vehicle is just
starting to spin, as it might if you hit a patch of ice or
other slippery spot on the road. When the system is on,
you may hear a noise or feel a vibration in the brake
pedal. This is normal.

2-93
The HUD controls are located on the instrument panel to
the left of the steering wheel.1. Start your engine and slide the HUD dimmer control
all the way up.
The brightness of the HUD image is determined by
an internal photo
-cell, and where you have the HUD
dimmer control set.
2. Adjust the seat to your driving position. Slide the
image height adjuster control all the way up, raising
the image as far as possible.
3. Now push the image height adjuster control down so
the image is as low as possible but still in full view.
4. Slide the dimmer control downward until the HUD
image is no brighter than necessary.
To turn the HUD display off, slide the dimmer control
all the way down.

3-6
In cold weather, the system will delay turning on the
fan, to avoid blowing cold air. During this delay the
system will be in FRONT defrost mode and the light in
the button will come on and stay on as long as the
display is showing the current mode, set TEMP and
FAN speed. This light will go off when the display
returns to the outside temperature. The length of the
delay depends on the engine coolant temperature and the
outside temperature. Pushing the FAN, AIR FLOW or
FRONT buttons will override this delay, turn off the
AUTO setting and change the fan speed.
Manual Operation
You may also manually adjust the air delivery or
fan speed.
AIR FLOW: This button is used to change the
direction of the airflow. The airflow choices available
are WINDSHIELD
-FLOOR, MID, MID-FLOOR, and
FLOOR. If the system is set for AUTO, pressing the
AIR FLOW button will display and hold the current
airflow direction and the comfort setting. Press the AIR
FLOW up or down button again to change the direction
of the airflow.If the AIR FLOW up button is selected while in the
FRONT defrost mode, the system will direct the air
toward the windshield and the floor. If the AIR FLOW
down button is selected while in the FRONT defrost
mode, the system will direct the air toward the floor, and
the FRONT defrost mode will cancel. Notice the arrows
in the display.
OFF: If the passenger comfort control is turned on,
it can be turned off by pressing the OFF button once.
Pressing the OFF button a second time will turn off the
main system. Turning off the main system causes the fan
to turn off and the airflow to be directed toward the
floor. The system will still try to keep the interior of the
vehicle at the previous chosen comfort setting. The
outside temperature will show on the display when the
system is OFF.
The ventilation system always allows fresh air to flow
through your vehicle when the vehicle is moving even
with the system in the OFF mode.

3-12
Adjust the direction of
airflow by moving the
louvered vents.
If you have the optional rear
passenger ComforTemp,
you can adjust the direction
of the airflow to the rear
seating area.Ventilation Tips

Keep the hood and front air inlet free of ice, snow or
any other obstruction such as leaves. The heater and
defroster will work better, reducing the chance of
fogging your windows.

Keep the air path under the front seats clear of
objects. This helps air to circulate throughout
your vehicle.

When the engine idles for a long time, the exterior
temperature sensor may cause the system to blow air
that is too cool. Once the vehicle is moving again,
the system will try to maintain the set temperature
inside your vehicle.

When you start your vehicle and the EXT display
flashes (Dual Automatic ComforTemp system only)
for some time, the system may need repair.
See your dealer.