NHTSA investigationDP88010
Investigation DP88010: 1985–1986 Buick Buick
- Status
- CLOSED
- Opened
- Jan 22, 1988
- Closed
- Mar 1, 1988
- Model years
- 1985–1986
Subject
Brake proportioning valve
Component: Service brakes, hydraulic
Summary
Brake proportioning valve
An NHTSA investigation looks into whether a safety defect exists. Opening one is not a finding. Outcomes can include a recall, closure without action, or further inquiry.
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.