NHTSA investigationDP21004
Investigation DP21004: Semi-Trailer Semi-Trailer
- Status
- CLOSED
- Opened
- Nov 17, 2021
- Closed
- Jun 22, 2022
- Model years
- —
Subject
Semi-Trailer Side Underride Guards
Component: Structure › Underride
Summary
See the attached evaluation report.
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.