The problem
The involved vehicles may have been built with power unit anti-skid logic modules on tag axle installations instead of the correct trailer type modules. Since the tag axle sensor output is less than that of the power unit sensor, it requires the more sensitive trailer module. As sensor output over time drops below minimum requirements, one of two things will happen: (1) the anti-lock system on the tag axle will shut down and the cab mounted fault lamp will light or (2) the system will become inoperative without activating the fault light. This fails to conform to federal motor vehicle safety standard no. 121, "Air brakes".
The fix
Dealer will replace the incorrect anti-lock module without charge to owner.
Contacts
Vehicle description: truck tractors.System: service brakes; vacuum brake system.Consequences of defect: if the system becomes inoperative, a brake lock-up,loss of vehicle control and an accident could occur without prior warning.Note: the electrical power to the anti-lock system should be disconnected byremoving the anti-lock system fuse until the defect can be corrected.
What to do
- Check your VIN. Enter it at nhtsa.gov/recalls - it shows whether this recall applies to your vehicle and whether the repair has been done.
- Call a dealer. Any authorized White Truck dealer will do the repair free, whether or not you bought the vehicle there. Quote campaign 78V132000.
- Ask about parts and a loaner. If parts aren't available yet, ask what to do in the meantime.
- Keep your paperwork. If you paid for this repair before the recall, you may be able to get reimbursed - here's how.