Contacts
Oldsmobile campaign no 74-c-5. Buick campaign no 73-c-3. Gmc truck campaignno 74-c-06. Chevrolet campaign no 74-c-11. Pontiac campaign no 74-c-5.Possibility that the single diaphragm brake vacuum power booster was assembledwith demensional descrepancies in the vacuum power booster housing which mayreduce the torque required to unlock the front half of the housing from therear half. If this condition exists, the low unlocking torque coupled withother variations in the assembly may cause housing to rotate and disengage fromthe locking tabs resulting in separation of the two halves of the booster andcomplete loss of brakes. (Correct by inspecting and staking the housing at twopoints to preclude rotation of the housing.
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 Buick, Chevrolet, GMC dealer will do the repair free, whether or not you bought the vehicle there. Quote campaign 74V027000.
- 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.