NHTSA Complaint #11518815 — 2013 GMC SIERRA 1500

The contact owns a 2013 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the contact was alerted by another motorist that the spare tire had lowered underneath the vehicle. After stopping to inspect the vehicle, it was discovered that the rear cross members had corroded, causing the spare tire to become unsecured underneath the vehicle. Additionally, while driving over bumps in the roadway, the vehicle became unstable due to the corroded rear suspension. The vehicle was taken to the local mechanic who diagnosed that the rear sub frame needed to be replaced. The vehicle was not yet repaired. The manufacturer and local dealer were not notified of the failure. The failure mileage was approximately 90,000.