The problem
The involved vehicles may not comply with federal motor vehicle safety standard no. 121, "Air brake systems". The trailer brake control air line was connected to the front brake double check valve rather than the stop lamp switch double check valve, such that in the event of a failure of the truck front brake system the trailer brakes cannot be applied using the service brake control (treadle valve).
The fix
Dealer will inspect and connect the brake control air line to the proper valve, without charge to owner.
Contacts
Vehicle description: trucks equipped with air brake models w/rq3 and w/j91.System: service brakes; trailer brake controls.Consequences of defect: loss of treadle valve control over the trailer brakeswould increase vehicle stopping distance and could result in an accident.
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 Chevrolet, GMC dealer will do the repair free, whether or not you bought the vehicle there. Quote campaign 77V145000.
- 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.