Tesla model s. has problems that with little or no notice the car can quit, leaving the car and occupants stranded dangerously in heavy traffic, sometimes with no lights. allegedly the traction battery, drive unit, contactor, inverter, converter and/or 12 v accessory battery can suddenly fail causing the tesla to quit with little or no warning, then coasting to a stop. allegedly in some cases after the vehicle comes to a stop the 12 v battery and systems will quickly fail, preventing parking lights and hazard lights from being used and preventing the parking brake from being released and preventing the engagement of tow mode thus preventing the vehicle from being pushed or coasted out of dangerous traffic to a safer location. not being able to engage tow mode, it makes towing the vehicle more difficult, time-consuming and risky. *tr