Vehicle recall 83V105000 · October 13, 1983
Pontiac 6000, Chevrolet Cavalier and 12 more models
The brake proportioner valves may break and separate from the master cylinder.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- 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.
- 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.
Recall details
- NHTSA campaign
- 83V105000
- Reported to NHTSA
- October 13, 1983
- Filed by
- GENERAL MOTORS CORP.
- Owner notification
- October 20, 1983
- Vehicles potentially affected
- 352,036
- Initiated by
- the manufacturer
- Components
- Service brakes, hydraulic › Foundation components › Differential proportional valve
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Buick Century (1983): 1983
- Buick Skyhawk (1983): 1983
- Buick Skylark (1983): 1983
- Cadillac Cimarron (1983): 1983
- Chevrolet Cavalier (1983): 1983
- Chevrolet Celebrity (1983): 1983
- Chevrolet Citation (1983): 1983
- Oldsmobile Ciera (1983): 1983
- Oldsmobile Cutlass (1983): 1983
- Oldsmobile Firenza (1983): 1983
- Oldsmobile Omega (1983): 1983
- Pontiac 6000 (1983): 1983
- Pontiac J2000 (1983): 1983
- Pontiac Phoenix (1983): 1983
Has your Buick been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Buick dealer can also check your VIN. Recall repairs are free.