Tire Pressure Monitor SystemThe Tire Pressure Monitor System (TPMS) uses radioand sensor technology to check tire pressure levels. TheTPMS sensors monitor the air pressure in your vehicle’stires and transmit tire pressure readings to a receiverlocated in the vehicle.Each tire, including the spare (if provided), should bechecked monthly when cold and inflated to the inflationpressure recommended by the vehicle manufacturer onthe vehicle placard or tire inflation pressure label. (If yourvehicle has tires of a different size than the size indicatedon the vehicle placard or tire inflation pressure label, youshould determine the proper tire inflation pressure forthose tires.)As an added safety feature, your vehicle has beenequipped with a tire pressure monitoring system (TPMS)that illuminates a low tire pressure telltale when oneor more of your tires is significantly under-inflated.Accordingly, when the low tire pressure telltaleilluminates, you should stop and check your tires assoon as possible, and inflate them to the proper pressure.Driving on a significantly under-inflated tire causes thetire to overheat and can lead to tire failure. Under-inflationalso reduces fuel efficiency and tire tread life, and mayaffect the vehicle’s handling and stopping ability.Please note that the TPMS is not a substitute for propertire maintenance, and it is the driver’s responsibility tomaintain correct tire pressure, even if under-inflation hasnot reached the level to trigger illumination of the TPMSlow tire pressure telltale.Your vehicle has also been equipped with a TPMSmalfunction indicator to indicate when the system isnot operating properly. The TPMS malfunction indicatoris combined with the low tire pressure telltale. Whenthe system detects a malfunction, the telltale willflash for approximately one minute and then remaincontinuously illuminated. This sequence will continueupon subsequent vehicle start-ups as long as themalfunction exists.When the malfunction indicator is illuminated, the systemmay not be able to detect or signal low tire pressure asintended. TPMS malfunctions may occur for a variety ofreasons, including the installation of replacement oralternate tires or wheels on the vehicle that prevent theTPMS from functioning properly. Always check the TPMSmalfunction telltale after replacing one or more tires orwheels on your vehicle to ensure that the replacement oralternate tires and wheels allow the TPMS to continue tofunction properly.See Tire Pressure Monitor Operation on page 6-65 foradditional information.6-64
