Cadillac 2002 DeVille Owner's Manual page 173

CHECK TIRE PRESSURE
displayed when the Tire Pressure Monitor (TPM) system
detects a low or high tire pressure condition in one or
more of the road tires. By pressing the INFO button up
or down, the DIC display will show which tire or tires
do not have the correct inflation pressure. A"LOW
TIRE" condition exists when the tire's air pressure is
under 25 psi (172 kPa) and a "HIGH TIRE" condition
exists when the tire's air pressure is above 38 psi
(262 kPa). The system will display the air pressure, the
tire location (LF, RF, RR or LR) and if the air pressure is
low or high. The tire pressure information is available in
English or metric measurements. For example, a driver's
side front tire that is low may be shown as: 22 PSI LF
TIRE LOW.
The correct tire inflation pressure should be set to
those shown on the Tire Loading
Label, located on the rear edge of the driver's door.
For more information regarding proper tire inflation,
--
see"Inflation Tire Pressure" in the Index. If a tire
is low, you should stop as soon as possible and inspect
your tire(s) for damage. If a tire is flat, see "If a Tire
Goes Flat" in the Index.
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144 :This message is
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Information
Once the TPM system detects the low or high tire
pressure condition, the message "CHECK TIRE
PRESSURE" will be displayed whenever you start the
engine. To remove or clear the CHECK TIRE
PRESSURE message, you will need to set the tire(s) to
the proper tire pressure. See "Inflation
in the Index.
CAUTION:
When the CHECK TIRE PRESSURE message is
displayed on the Driver Information Center and
the tire pressure is low, your vehicle handling
capabilities will be reduced during severe
maneuvers. If you drive too fast, you could lose
control of your vehicle. You or others could be
injured. Don't drive over 55 mph (90 km/h) when
the tire pressure is low. Drive cautiously and
correct the tire pressure as soon as you can.
--
Tire Pressure"
2-105