2011 Jeep Grand Cherokee Owner Manual - Page 419

STARTING AND OPERATING 417 CAUTION! (Continued) • After inspecting or adjusting the tire pressure always reinstall the valve stem cap. This will prevent moisture and dirt from entering the valve stem, which could damage the Tire Pressure Monitoring Sensor. • The TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain correct tire pressure using an accurate tire gauge, even if under-inflation has not reached the level to trigger illumination of the Tire Pressure Monitoring Telltale Light. • Seasonal temperature changes will affect tire pressure, and the TPMS will monitor the actual tire pressure in NOTE: the tire. • The TPMS is not intended to replace normal tire care and maintenance, or to provide warning of a tire Base System failure or condition. The Tire Pressure Monitor System (TPMS) uses wireless • The TPMS should not be used as a tire pressure gauge technology with wheel rim-mounted electronic sensors to monitor tire pressure levels. Sensors, mounted to each while adjusting your tire pressure. wheel as part of the valve stem, transmit tire pressure • Driving on a significantly under-inflated tire causes readings to the Receiver Module. the tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire NOTE: It is particularly important, for you to regularly tread life, and may affect the vehicle's handling and check the tire pressure in all of your tires, and to maintain the proper pressure. stopping ability. 5