I was driving on the highway with my family in stop and go traffic when my car turned off on its own while still in Drive. The car has an ‘Auto On/Off’ feature that we had disabled so it should not have, for any reason, done this. We had a semi-truck behind us that nearly rearended us. After putting the car in park, in the middle of the highway, and restarting the engine the car turned off again less than 10 minutes later. This car has a brand-new battery and purge control solenoid (after a check engine light) due to this issue, thinking it would fix it.