Buick · Canada · Mod
Buick Regal, Century +3 more: Brakes
Affects Buick Regal, Century, Lesabre, Riviera, Electra · 1976 — about 3K vehicles.
The hazard
THE REAR PROPORTIONING MODULE OF THE BRAKE COMBINATION VALVE MAY HAVE BEEN IMPROPERLY MACHINED AND BRAKE FLUID PRESSURE TO THE REAR BRAKES MAY BE BLOCKED OFF.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational