2005 BUICK LESABRE maintenance reset

GAGE INFO (Information):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 GM 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. SeeEngine
Overheating on page 5-26.
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 displayshows the high or low message, you need to have your
battery and charging system checked. See your
GM dealer.
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 percent,
the display will show OIL LIFE INDEX CHANGE OIL.
This means service is required for your vehicle.
See your GM dealer.
In addition to the engine oil life system monitoring the
oil life, additional maintenance is recommended in
the Maintenance Schedule in this manual. See
Part A: Scheduled Maintenance Services on page 6-4
andEngine Oil on page 5-13for more information.
When you have the oil changed according to the
maintenance schedule, you will have to reset the engine
oil life system. To reset the engine oil life system, see
“How to Reset the Engine Oil Life System” underEngine
Oil Life System on page 5-17.
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.
3-49

Check Tire Pressure System
If your vehicle has the check tire pressure system, it
can alert you to a large change in the pressure of one
tire. The system will not alert you before you drive
that a tire is low or at. You must begin driving before
the system will work properly.
The CHECK TIRE PRESSURE message will appear on
the Driver Information Center (DIC) if pressure
difference (low pressure) is detected in one tire. The
check tire pressure system may not alert you if:
More than one tire is low.
The vehicle is moving faster than
65 mph (105 km/h).
The system is not yet calibrated.
The tire treadwear is uneven.
The compact spare tire is installed.
Tire chains are being used.
The vehicle is being driven on a rough or
frozen road.
If the anti-lock brake system warning light comes on,
the check tire pressure system may not be working
properly. See your dealer for service. Also, see
Anti-Lock Brake System Warning Light on page 3-39.The check tire pressure system detects differences in
tire rotation speeds that are caused by changes in
tire pressure. The system can alert you about a
low tire — but it does not replace normal tire
maintenance. SeeTires on page 5-54.
When the CHECK TIRE PRESSURE message appears
on the Driver Information Center, you should stop as
soon as you can and check all your tires for damage. If
a tire is at, seeIf a Tire Goes Flat on page 5-69.
Also check the tire pressure in all four tires as soon as
you can. SeeInation - Tire Pressure on page 5-60.
Any time you adjust a tire’s pressure or have one
or more tires repaired or replaced, you will need to reset
(calibrate) the check tire pressure system. You will
also need to reset the system whenever you rotate the
tires, buy new tires and install or remove the compact
spare tire.
Do not reset the check tire pressure system without rst
correcting the cause of the problem and checking
and adjusting the pressure in all four tires. If you reset
the system when the tire pressures are incorrect,
the check tire pressure system will not work properly
and may not alert you when a tire is low or high.
5-62

To reset (calibrate) the system:
1. Turn the ignition switch to RUN.
2. Press the GAGE INFO button on the DIC until TIRE
PRESSURE appears on the display.
3. Press and hold the DIC RESET button for about
ve seconds. After ve seconds, the display will
show TIRE PRESSURE RESET. If TIRE
PRESSURE RESET does not appear in the display
after about ve seconds repeat the procedure. If it
does not work after two tries, see your dealer for
service. After you release the DIC RESET button,
TIRE PRESSURE NORMAL will appear in the
display.
The system completes the calibration process during
driving. Calibration time can take 45 to 90 minutes,
depending on your driving habits. After the system has
been calibrated, the system will alert the driver that
a tire is low, up to a maximum speed of 65 mph
(105 km/h).
Tire Inspection and Rotation
Tires should be rotated every 5,000 to 8,000 miles
(8 000 to 13 000 km).Any time you notice unusual wear rotate your tires as
soon as possible and check wheel alignment. Also
check for damaged tires or wheels. SeeWhen It Is Time
for New Tires on page 5-64andWheel Replacement
on page 5-67for more information.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The rst rotation
is the most important. SeePart A: Scheduled
Maintenance Services on page 6-4, for scheduled
rotation intervals.
When rotating your tires, always use the correct rotation
pattern shown here.
Don’t include the compact spare tire in your tire rotation.
After the tires have been rotated, adjust the front and
rear ination pressures as shown on the Tire and
Loading Information label.
5-63

Footnotes
†The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
*If your vehicle has the GM Oil Life System, a computer
system lets you know when to change the oil and
lter. This is based on engine revolutions and engine
temperature, and not on mileage. Based on driving
conditions, the mileage at which an oil change will be
indicated can vary considerably. For the oil life system to
work properly, you must reset the system every time
the oil is changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE ENGINE OIL SOON message
will come on. Change your oil as soon as possible within
the next two times you stop for fuel. See Engine Oil
on page 5-13.It is possible that, if you are driving under
the best conditions, the oil life system may not indicate
that an oil change is necessary for over a year.
However, your engine oil and lter must be changed atleast once a year and at this time the system must be
reset. It is also important to check your oil regularly and
keep it at the proper level.
If the system is ever reset accidentally, you must
change your oil at 3,000 miles (5 000 km) since your
last oil change. Remember to reset the oil life system
whenever the oil is changed. See Engine Oil Life System
on page 5-17 for information on resetting the system.
@Whenever the tires are rotated, the Check Tire
Pressure System (if equipped) must be reset.
+A good time to check your brakes is during tire
rotation. See Brake System Inspection on page 6-23.
3,000 Miles (5 000 km)
❑Change engine oil and lter (or every 3 months,
whichever occurs rst).An Emission Control Service.
(See footnote *.)
6,000 Miles (10 000 km)
❑Change engine oil and lter (or every 3 months,
whichever occurs rst).An Emission Control Service.
(See footnote *.)
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-63for proper rotation pattern and additional
information.(See footnote @.) (See footnote +.)
6-7

150,000 Miles (240 000 km)
❑Drain, ush and rell cooling system (or every
60 months since last service, whichever occurs rst).
SeeEngine Coolant on page 5-24for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test cooling system and
pressure cap.An Emission Control Service.
❑Inspect engine accessory drive belt.An Emission
Control Service.
Long Trip/Highway Scheduled
Maintenance
The services shown in this schedule up to 100,000 miles
(166 000 km) should be repeated after 100,000 miles
(166 000 km) at the same intervals for the life of
this vehicle. The services shown at 150,000 miles
(240 000 km) should be repeated at the same interval
after 150,000 miles (240 000 km) for the life of this
vehicle.
SeePart B: Owner Checks and Services on page 6-18
andPart C: Periodic Maintenance Inspections on
page 6-22.
Footnotes
†The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
*If your vehicle has the GM Oil Life System, a computer
system lets you know when to change the engine oil
and lter. This is based on engine revolutions and
engine temperature, and not on mileage. Based
on driving conditions, the mileage at which an oil change
will be indicated can vary considerably. For the oil life
system to work properly, you must reset the system
every time the oil is changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE ENGINE OIL SOON message
will come on. Change your oil as soon as possible within
the next two times you stop for fuel. See Engine Oil
on page 5-13.It is possible that, if you are driving under
the best conditions, the oil life system may not indicate
that an oil change is necessary for over a year.
6-13