Mack Pioneer: Accessories

Affects Mack Pioneer · 2026 — about 34 vehicles.

The hazard

Issue: On certain trucks, the load lock clamps installed behind the cab could fail. As a result, the load lock bars could become loose and separate from the truck. Safety Risk: A load lock bar that separates could create road hazard for others and increase the risk of a crash or injury. Corrective Actions: Mack will notify owners by mail and advise you to take your truck to a dealership to replace the load lock clamps.

What to do

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

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational