The active cruise control stops for no reason. This problem is intermittent. On a number of occasions (~20 times since I picked up the car), the car slows down as the traffics slows down. The car is almost at a stop (5-10 mph) and the emergency brakes comes on, the cars brakes hard & stops and the parking brake turns on. The alert "cruise control unavailable" show in the display. Thereafter the cruise will not engage. After I shut off the car and restart it, the cruise again works again. In addition to not performing as advertised, this represents a safety hazard.

- Temecula, CA, USA