The contact owns a 2021 Jeep Wrangler Unlimited Rubicon. The contact stated that while driving at 55 MPH, the vehicle was going up a hill when it suddenly stopped. No warning light illuminated. The contact merged to the right side of the road as the vehicle failed to respond. The vehicle was not taken to be diagnosed as the vehicle started to function again. The vehicle was not repaired. The local dealer was contacted; however, the vehicle was not repaired because the dealer stated parts were not available. The manufacturer was not made aware of the failure. The failure mileage was approximately 39,000. Parts distribution disconnect.