On display this week at the Mid-America Trucking Show is the Western Star 4900X that stars as Optimus Prime in the next iteration of the Transformers movie series. Above is a gallery of the truck on the show floor. (Photos by Jason Cannon)
Affected tractors are equipped with an automated Eaton UltraShift Plus or Eaton Advantage Transmission with right hand stalk shifter. In the affected trucks, the display on the instrument panel can indicate “N” when the shifter is set into “D” or “R,” causing the truck not to move.