Mack Pioneer: Lights and Instruments

The hazard

Issue: On a small number of trucks, a problem with the trailer body control module could cause the trailer lights not to work. Safety Risk: Trailer lights that don't work could make the vehicle less visible and cause following drivers not to recognize that the vehicle is braking or intends to turn or change lanes. These issues could increase the risk of a crash. Corrective Actions: Mack will notify owners by mail and advise you to take your truck to a dealership to inspect and, if necessary, replace the trailer body control module.

What to do

Contact your dealer; the remedy details were not included in the filing.