2010 Jeep Liberty Owner's Manual - Page 375

374 STARTING AND OPERATING • Seasonal temperature changes will affect tire pressure, The matching full-size spare wheel and tire assembly (if and the TPMS will monitor the actual tire pressure in equipped) has a tire pressure monitoring sensor. The matching full-size spare can be used in place of any of the the tire. four road tires. The TPMS will only monitor the pressure Base System in the full-size spare when it is used in place of a road The Tire Pressure Monitor System (TPMS) uses wireless tire. Otherwise, a spare with a pressure below the lowtechnology with wheel rim mounted electronic sensors to pressure limit will not cause the "Tire Pressure Monitormonitor tire pressure levels. Sensors, mounted to each ing Telltale Light" to illuminate or the chime to sound. wheel as part of the valve stem, transmit tire pressure Tire Pressure Monitoring Low Pressure Warnings readings to the receiver module. The "Tire Pressure Monitoring Telltale Light" will NOTE: It is particularly important for you to check the illuminate in the instrument cluster and a chime tire pressure in all of the tires on your vehicle monthly will sound when tire pressure is low in one or and to maintain the proper pressure. more of the four active road tires. Should this occur, you should stop as soon as possible, check the inflation The TPMS consists of the following components: pressure of each tire on your vehicle, and inflate each tire • Receiver Module to the vehicle's recommended cold placard pressure • Four Tire Pressure Monitoring Sensors value. Once the system receives the updated tire pressures, the system will automatically update and the "Tire • Tire Pressure Monitoring Telltale Light Pressure Monitoring Telltale Light" will turn off. The