2004 Jeep Grand Cherokee Owner's Manual - Page 92

92 UNDERSTANDING THE FEATURES OF YOUR VEHICLE Tire Pressure Monitor System - If Equipped The Tire Pressure Monitor (TPM) system uses wireless technology to monitor tire pressure levels. Sensors, mounted to each wheel as part of the valve stem transmit tire pressure readings to a receiver located in the overhead console. The tire pressure is shown in the Electronic Vehicle Information Center (EVIC) display. The TPM system remains active even if it is not displayed in the EVIC. CAUTION! The TPM system is designed to monitor your tire pressure and will not function as a tire pressure gauge while adjusting the pressure in your tires. There will be a delay between the instant you adjust the air pressure in a tire and when the system updates the display. NOTE: The TPM system can inform you about a low or high tire pressure condition, but it does not replace normal tire maintenance. The TPM system is not intended to provide you with notification of rapid pressure loss.