NHTSA investigationDP75002
Investigation DP75002: 1974 GMC GMC
- Status
- CLOSED
- Opened
- Mar 27, 1975
- Closed
- Jul 28, 1975
- Model years
- 1974
Subject
Vacuum brake hose failure
Component: Service brakes, hydraulic
Summary
Vacuum brake hose failure
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.