2012 Jeep Grand Cherokee Owner Manual SRT - Page 468

466 STARTING AND OPERATING NOTE: • Seasonal temperature changes will affect tire pressure, • The TPMS is not intended to replace normal tire care and the TPMS will monitor the actual tire pressure in and maintenance, or to provide warning of a tire the tire. failure or condition. Premium System • The TPMS should not be used as a tire pressure gauge The Tire Pressure Monitor System (TPMS) uses wireless while adjusting your tire pressure. technology with wheel rim-mounted electronic sensors to monitor tire pressure levels. Sensors, mounted to each • Driving on a significantly under-inflated tire causes wheel as part of the valve stem, transmit tire pressure the tire to overheat and can lead to tire failure. readings to the Receiver Module. Under-inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling and NOTE: It is particularly important, for you to regularly stopping ability. check the tire pressure in all of your tires and to maintain the proper pressure. • The TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain The Tire Pressure Monitor System (TPMS) consists of the correct tire pressure using an accurate tire gauge, even following components: if under-inflation has not reached the level to trigger • Receiver Module illumination of the Tire Pressure Monitoring Telltale • Four Tire Pressure Monitoring Sensors Light.