The average age of Class 8 trucks peaked in 2010 at almost seven years. Due to worries over new technology introduced to comply with federal emissions standards in 2007 and 2010, owner-operators and fleets have held on to trucks longer than in the past. That resulted in factory layoffs by some of the major truck makers in recent years.
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.