Once. The weird thing was...it was a new SUV, I had a second remote. I started it to let it heat up because it was like 10 degrees outside. New vehicle. Locked it because I live in the ghetto. Guess what? The second remote does not work while the vehicle is running. I didn't know that. This was back in like 1997 when stuff like that was relatively new. I was late to work as a result.