So I have been annoyed by a bug in my car for as long as I can remember. When I get into the car I generally immediately put my foot on the brake and put the car into drive. The trick is that when you put your foot on the brake it takes it a second to "boot up" (some error warning lights display momentarily) and during that time period if you move the drive stalk down it DOES NOT go into drive. That is annoying, so I immediately do it again and it successfully goes into drive. The issue is that on this second depression of the drive lever it not only puts it into drive, but it ALSO tries to engage autosteer. This errors out and displays the message "Autosteer temporarily unavailable". So now comes the issue: I think this caused unintended acceleration for me once when I was at my Aunt's house in their gravel driveway. I think (based on Tesla's analysis of the logs) that the car ended up in TACC mode and so the moment I gently touched the accelerator pedal, it tried to accelerate up to 18 miles per hour (the minimum TACC setting). I need to call Tesla back and discuss with them the possibility that this bug was the root cause (i.e. it simultaneously shifting into gear AND trying to engage some kind of TACC/Autopilot). I don't have an issue with it taking a second to "self test" the car as I put my foot on the brake to activate the vehicle, but I DO think it is a defect for it to try and engage TACC/Autopilot at the same time as it puts the car into drive. What I thought was just an annoying chime I have to listen to many mornings as I fire up the car may actually have resulted in unintended operation. Has anyone else experienced similar behavior? Just to prove I was not crazy I just went and took a video showing the car not shifting to Drive the first time I press down the stalk, but then the second time simultaneously shifting to drive and giving me the autosteer error. I have not been able to recreate the "it putting me into TACC mode" issue. That may be GPS location related or related to other vehicles around me (a car was parked in front of me when I had this unintended acceleration - luckily I slammed on the brake in time). Basically I may not be able to reproduce at home in my driveway... I will endeavor to report this to Tesla.