MACK issued a recall on the CXU model

On certain trucks, the rear hold-down brackets that secure the battery box lid may be rotated too far forward, which may restrict the battery box lid from properly locking into place. If this occurs, the battery box lid may come off when stepping on the step, which may cause a person to fall from the vehicle resulting in personal injury. Correction: Dealers will inspect and adjust the rear hold-down brackets as required.