I need your help. Took my car for Saturday morning drive for a cup of coffee. Stop on a flat surface, put the car into park, engage the emergency brake and let the car sit at idle for about five minutes. After returning to the car disengage the emergency brake put the car into drive and only had first gear in tip Tronic mode. Move the car back into auto while driving which was nonresponsive. Limped home in first gear to park the car in the garage again on a flat surface. Turn the car off let it sit about five minutes started the car back up and everything was normal again. Car drives fine but I'm concerned about the issue your thoughts? 2006 C2S 4l4,554 miles.