As a result it will not instantaneously register a rapid tire deflation or blow out. To avoid false readings, the system samples for a little while before indicating a problem. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly. TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. INDIRECT TIRE PRESSURE MONITORING SYSTEMS. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists. When air pressure drops below the baseline, the sensors trigger the dashboard indicator to turn on. When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illuminated. The TPMS malfunction indicator is combined with the low tire pressure telltale. Direct tire pressure monitoring systems use individual sensors inside each tire, and sometimes a full-size spare, to transmit information to a central control module. Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain correct tire pressure, even if under-inflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale. Under-inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling and stopping ability. Driving on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure. Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label, you should determine the proper tire inflation pressure for those tires.)Īs an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires is significantly under-inflated. Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label.
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