Does anyone else have a problem with your rear park assist sensors not working or coming on then going off at random times no matter how clean they are. Is there a TSB for it. Sometime i can go days with them working fine then they start messing up. Havent been to dealer yet because its so... Vodafone Automotive (Formerly Cobra) is the European leader for GPS stolen vehicle tracking, vehicle alarms, vehicle immobiliser, speed camera alerts, vehicle and motorbike safety and in-car DVD systems Turn the key on (engine off), then press and hold the RESET button until the flashing TPMS warning light goes off. Or, if it is not flashing, hold the RESET button until the light flashes three times. Turn the key off. But the relearn procedure is not complete until the vehicle is driven at 19 mph or faster for at least an hour. Apr 20, 2020 · Backup warning system sensors, also known as park assist sensors, park distance control (PDC) sensors, or simply park sensors, are safety devices, proximity sensors, that detect objects behind (or in the "proximity" of) a vehicle during parking. Some vehicles come factory equipped with backup warning sensors.