Sensors first stopped working at different times and as of today, 9-21-18, they don't work at all. Checked with my mechanic and he stated its in the wiring somewhere and to trace it and try and fix it could run me $200 or higher and he had no idea of the upper end. So every time we now start the car we just have hit the okay on the dash that we know its not working and really pay attention when we back up.