2002 Cadillac DeVille Owner's Manual - Page 173

CHECK TIRE PRESSURE - 144 :This message is 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-Information 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. 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 -- Tire Pressure" 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. 2-105