NHTSA investigationEA91038
Investigation EA91038: 1988–1990 GMC C Series
- Status
- CLOSED
- Opened
- Aug 30, 1991
- Closed
- May 29, 1992
- Model years
- 1988–1990
Subject
Brake light switch failure
Component: Exterior lighting
Summary
There is no summary currently available
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 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.