NHTSA complaint #11644555

Owner complaint summary

Started vehicle and went to back up. Car slammed into reverse and disply showed Drive start control malfunction. The service engine light came on. I removed the battery to reset the error message and the following dayi took it to the dealership. They checked it out and told me that they didnt find anything wrong with it since it wasnt displaying a service engine light. So i went home with it. The next day it did it again so i took it back to them while the condition was happening. Which insisted of the error message, serv eng light, gearshift indicator displaying drive and park at the same time. Also the door locks were continually locking and unlocking. They put a new water valve plus a neut switch assy and a new xmission lever in it and told me it was fixed. I picked it up and the next day it did it again. Returned it to them and they said that the new part was possibly bad from Toyota, ordered a new one, put it in and said it was all good now. I picked car up and 9 months later its happening again. Not sure what to do. Please help