On certain trucks, the inversion valve in the air brake system may not work properly. As a result, there could be a delay before the parking brake applies. If this happens, the vehicle could move unexpectedly. This issue also causes the vehicle not to meet the requirements of the Canadian regulations.
A delay before the parking brake applies could result in unintended vehicle movement, and create the risk of an injury or a crash.
Daimler Truck North America (DTNA) will notify the owners by mail. The corrective actions for this recall are under development.