On three separate occaisions the back left door panel has slipped from its position and caused the door to not be able to open either from the inside or outside. It requires repair each time. This is extremely dangerous for the back seat passengers as they are not able to exit the car AND it can’t be forced open AND requires a technician. I have asked Tesla to fix it, but it appears to be a design flaw and it is a known flaw. There are no warning lights. The vehicle has been looked at each time and each technician has said that the clips pop out and they do a car each week or so.