CanadaCertain 2026 Mack PIONEER medium- and heavy-duty trucks with load lock clamps installed behind the cab are affected. The clamps could fail, allowing load lock bars to become loose and separate, creating a road hazard and increasing the risk of a crash or injury. Mack will notify owners by mail and advise you to take your truck to a dealership to replace the load lock clamps.
How to identify it
2026 Mack PIONEER
The hazard
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.
A load lock bar that separates could create road hazard for others and increase the risk of a crash or injury.
What to do
Mack will notify owners by mail and advise you to take your truck to a dealership to replace the load lock clamps.
The official notice
This page is a summary of the notice published by Transport Canada, collected from Health Canada, CFIA and Transport Canada. Check the original before you act on it.
Read the official notice (opens in a new tab)