Automatic Transmission problems of the 2009 Chevrolet Aveo

The contact owns a 2009 Chevrolet Aveo. The contact was driving approximately 50-55 mph when the vehicle began to decelerate and drive as if the contact had shifted into neutral. The contact depressed the accelerator and the vehicle was hesitant for a moment before engaging. The contact stated that the failure would occur sporadically at various speed and road conditions. The vehicle was taken to the dealer for the failure four times yet the dealer was unable to duplicate the failure each time. The vehicle was not repaired and the manufacturer was not contacted to report the failure. The approximate failure mileage was 4,500 and the current mileage was 12,000.

Driving on interstate highway in our new 2009 Chevrolet Aveo. It has an automatic transmission. The transmission shifter jumped or was slightly bumped (although I don't recall bumping it) from drive into neutral at 65 mph. Fortunately able to make it to shoulder to return to drive position (didn't know if going from neutral to drive at high speed would have caused damage). Reported problem to auto dealer who said the transmission is normal, does same thing on cobalt model! note: we can push shifter from drive into neutral at any speed without depressing the button on the shifter. Has only happened one time so far.