2013 Jeep Grand Cherokee Owner's Manual - Page 536

534 STARTING AND OPERATING • Seasonal temperature changes will affect tire pressure, A low spare tire will not cause the Tire Pressure Moniand the TPMS will monitor the actual tire pressure in toring Telltale Light to illuminate, a warning message to appear, or the chime to sound. the tire. Base System The Tire Pressure Monitor System (TPMS) uses wireless technology with wheel rim-mounted electronic sensors to monitor tire pressure levels. Sensors, mounted to each wheel as part of the valve stem, transmit tire pressure readings to the Receiver Module. NOTE: It is particularly important, for you to regularly check the tire pressure in all of your tires, and to maintain the proper pressure. The TPMS consists of the following components: • Receiver Module • Four Tire Pressure Monitoring Sensors • Tire Pressure Monitoring Telltale Light The Tire Pressure Monitoring Telltale Light will illuminate in the instrument cluster, a "LOW TIRE PRESSURE" message will display in the instrument cluster for 5 seconds, an ЉInflate to XXXЉ message will be displayed and an audible chime will be activated, when one or more of the four active road tire pressures are low. Should this occur, you should stop as soon as possible, check the inflation pressure of each tire on your vehicle, and inflate each tire to the vehicle's recommended cold placard pressure value displayed in the ЉInflate to XXXЉ message. The system will automatically update and the Tire Pressure Monitoring Telltale Light will extinguish, once the updated tire pressures have been received. The vehicle may need to be driven for up to 20 minutes above 15 mph (24 km/h) to receive this information.