If your park assist sensor is not functioning properly, there are a few things you can do to reset it. First, check the owner's manual for your specific vehicle to see if there are any instructions on how to reset the park assist sensor. If there are no instructions in the manual, you can try the following:
1. Park your car in an open area where there are no obstacles around it.
2. Turn off the engine and set the parking brake.
3. Get out of the car and close all of the doors.
4. Wait for five minutes and then get back in the car and turn on the engine.
5. Put the car in reverse and slowly back up until you hear a beeping sound from the park assist sensor (this may take a few tries).
6. Once you hear the beeping sound, put the car in drive and continue driving forward until you hear another beep from the sensor (this may also take a few tries).
7. After you've heard two beeps fromthe sensor, it should now be reset and working properly again