Service Brakes, Hydraulic, Power Assist, Hydraulic October 16, 1984 NHTSA recall 84V134000 1,436 units VEHICLES HAVE A PRIMARY AND A RESERVE BRAKING SYSTEM. IF THE PRIMARY BRAKE SYSTEM BOOSTER FAILS, UNDER SOME CIRCUMSTANCES THE RESERVE SYSTEM MAY ALSO MALFUNCTION AND BRAKING ABILITY WILL BE IMPAIRED. Full recall details: the risk and what to do →