Without a signal to disengage the clutch when the brakes are applied, the distance required to stop the truck may lengthen, increasing the risk of a crash.

The affected vehicles were built without a redundant clutch disengagement switch. Without a redundant switch, a loss of signal from the brake air pressure switch can prevent the clutch from automatically disengaging when the brake is applied.

What to do: Book it in at your next service. There is no deadline and no charge.