Mine did the same thing! I fixed it a year ago and have had no more problems since,heres what I did. After you have removed the overhead console exposing the drive motor you will see a phillips head screw that holds the motor onto the drive casing. Loosen that screw about 1/4 to 2/3 of a turn. The problem is the gear mesh is too tight. By loosening the screw you loosen the gear mesh and it will not stick again. Give it a try.
