The defect
THE BRAKE PROPORTIONER VALVES MAY BREAK AND SEPARATE FROM THE MASTER CYLINDER. THIS WOULD ALLOW BRAKE FLUID TO LEAK AND WOULD RESULT IN A PARTIAL LOSS OF THE BRAKE SYSTEM.
The remedy
THE DEALER WILL INSPECT AND, IF NECESSARY, REPLACE ALL SUSPECT VALVES.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Buick Century | 1983 |
| Buick Skyhawk | 1983 |
| Buick Skylark | 1983 |
| Cadillac Cimarron | 1983 |
| Chevrolet Cavalier | 1983 |
| Chevrolet Celebrity | 1983 |
| Chevrolet Citation | 1983 |
| Oldsmobile Ciera | 1983 |
| Oldsmobile Cutlass | 1983 |
| Oldsmobile Firenza | 1983 |
| Oldsmobile Omega | 1983 |
| Pontiac 6000 | 1983 |
| Pontiac J2000 | 1983 |
| Pontiac Phoenix | 1983 |
Components: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Buick Century | 1983 | 1 | 1 |
| Buick Skyhawk | 1983 | 1 | 4 |
| Buick Skylark | 1983 | 1 | 1 |
| Cadillac Cimarron | 1983 | 0 | 4 |
| Chevrolet Cavalier | 1983 | 3 | 5 |
| Chevrolet Celebrity | 1983 | 2 | 2 |
| Chevrolet Citation | 1983 | 0 | 1 |
| Oldsmobile Ciera | 1983 | 0 | 1 |
| Oldsmobile Cutlass | 1983 | 5 | 2 |
| Oldsmobile Firenza | 1983 | 0 | 4 |
| Oldsmobile Omega | 1983 | 0 | 1 |
| Pontiac 6000 | 1983 | 3 | 2 |
| Pontiac J2000 | 1983 | 0 | 1 |
| Pontiac Phoenix | 1983 | 0 | 1 |
Other service brakes, hydraulic recalls in 1983
14 of the 140 recall campaigns reported to NHTSA in 1983 concerned the service brakes, hydraulic; GENERAL MOTORS CORP. filed 1,195 campaigns in all.
| 83V139000 28 Dec 1983 | GRUMMAN ALLIED IND., INC. |
| 83V124000 25 Nov 1983 | BEATRICE FOODS COMPANY |
| 83V116000 9 Nov 1983 | VOLKSWAGEN OF AMERICA,INC |
| 83V106000 13 Oct 1983 | GENERAL MOTORS CORP. |
| 83V107000 13 Oct 1983 | GENERAL MOTORS CORP. |
| 83V095000 22 Sept 1983 | VOLKSWAGEN OF AMERICA,INC |
| 83V071000 29 Jul 1983 | ISUZU MOTORS LIMITED |
| 83V064000 7 Jul 1983 | GENERAL MOTORS CORP. |
NHTSA recalls (public domain) · all recalls of 1983