Transmission Not Engage problems of the 2010 Dodge Caravan

The contact owns a 2010 Dodge Caravan. The contact was traveling 65 mph with the cruise control activated when the transmission disengaged and the engine rpms rose excessively. The contact stated there was a loss of acceleration and braking. The contact turned the vehicle off and was able to restart without any issues. The contact took the vehicle to the dealer but was advised that there was nothing wrong with the vehicle. The contact stated that the failure recurred twice and on the second occurrence, the transmission caused the vehicle to lunge forward violently. The failure mileage was 18,000 and the current mileage was 23,000.