When the vehicle would come to a stop, the parking brake would engage by itself. the only way to disengage it was to turn the vehicle off and on again. the second time i did this, the vehicle failed to shift out of park, and the vehicle was disabled in the middle of a roadway. the cause was a faulty charging port sending out a false proximity signal to the car's computer, making it think it was charging...updated 08/27/15 *bf