Check Tire Pressure System - Buick 2004 LeSabre Owner's Manual

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 flat. 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 3-38.
5-66
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. See Tires on page 5-58.
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 flat, see If a Tire Goes Flat on page 5-73.
Also check the tire pressure in all four tires as soon as
you can. See Inflation - Tire Pressure on page 5-65.
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 first
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.