GMC Sierra 3500 Investigations

The Sierra 3500 has been investigated 4 times. The 2001 and 2007 model years have been involved in the most campaigns.

An investigation is opened by NHTSA when enough complaints or a petition is filed concerning a safety-related issue with a vehicle.

Investigations by Model Year

Clicking on a model year will bring you to CarComplaints.com which has a full list of documents from the NHTSA.