On Friday I went to my car, opened the passenger door as I put my "stuff" in on that side, started the car and went into my office. When I came out the car was still running but the doors were locked! I do this every morning at home why did this happen?

 

Since the Driver's door was not opened it appears the car rearmed itself and locked the doors. Or maybe a "friend " played a trick on you.

Bill

 

I never have the driver side door "open". I was the last one to leave the office thus the car has brain of it's own...oh well its going in next week and they can tell me