On certain trucks, the bolts that attach the driver and front passenger seat and seat belts may not have been tightened properly. As a result, the seat(s) and/or seat belt(s) could loosen or detach in a crash.
Safety Risk
A seat and/or seat belt that loosens or detaches could increase the risk of injury in a crash.
Corrective Action
Mack will notify owners by mail and advise you to take your truck to a dealership to replace the driver and front passenger seat and seat belt bolts.