Pontiac 2000 Bonneville Owner's Manual page 319

The CHECK TIRE PRESSURE message will appear on
the Driver Information Center (DIC) and the systems
monitor TIRE PRESS light will come on if pressure
difference (low pressure) is detected in one tire. The
check tire pressure system may not alert you if:
D
more than one tire is low,
D
the vehicle is moving faster than 65 mph (105 km/h),
D
the system is not yet calibrated,
D
the tire treadwear is uneven,
D
the compact spare tire is installed,
D
tire chains are being used, or
D
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" in the Index.)
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 doesn't replace normal tire maintenance.
See "Tires" in the Index.
6-44
When the CHECK TIRE PRESSURE message appears
on the Driver Information Center and the systems
monitor TIRE PRESS light comes on, 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" in the Index.)
Also check the tire pressure in all four tires as soon as
-
you can. See "Inflation Tire Pressure" in the Index.
Any time you adjust a tire's pressure or have one or
more tires repaired or replaced, you'll need to reset
(calibrate) the check tire pressure system. You'll also
need to reset the system whenever you rotate the tires,
buy new tires, install or remove the compact spare, and
whenever the vehicle's battery has been disconnected.
Don't 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.
To reset (calibrate) the system:
1. Turn the ignition switch to RUN.
2. Using the MODE and SELECT buttons, change the
DIC to display TIRE PRESSURE.
3. Press and hold the RESET button for about five seconds.