NHTSA Recall 83V105000: Differential proportional valve (service brakes)
GENERAL MOTORS CORP. reported this safety recall to NHTSA on , covering an estimated 352,036 vehicles. It affects 14 models including the Buick Century.
| NHTSA campaign | 83V105000 |
|---|---|
| Component | SERVICE BRAKES, HYDRAULIC › FOUNDATION COMPONENTS › DIFFERENTIAL PROPORTIONAL VALVE |
| Report received | October 13, 1983 |
| Owner notification | October 20, 1983 |
| Initiated by | Manufacturer |
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.
Safety risk
Not provided.
Remedy
The dealer will inspect and, if necessary, replace all suspect valves.
Notes
Vehicle description: passenger vehicles.system: service brakes; brake proportioner valves.consequences of defect: since this is a dual brake system, part of the systemwill still work and allow the vehicle to be stopped, but over a greaterdistance. Partial loss of the braking system at a time when minimum stoppingdistance is required could result in a vehicle accident without prior warning.
Vehicles covered by recall 83V105000
| Make and 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 |
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.