NHTSA Complaint #11520149 — 2011 CHEVROLET SILVERADO 1500

GM has a defective wax coating on the vehicle frames of nearly a dozen models of their vehicles, spanning at least 2011-19, which they knew can lead to premature rust and corrosion, causing the frames to fail much earlier than expected. The evidence I have gathered includes the detailed internal service bulletin where GM describes the defect, as well as texts and e-mails with GM, and a transcript of my conversation with the Chevrolet dealership. All of which suggests GM knew about this defect and is actively working to keep it from being communicated to owners, some of which would still be covered by the six-year frame warranty. All that evidence is included as part of the attached pdf document. In it's bulletin GM instructs dealers to fix this issue under warranty only if customers brought it up to the dealer, and then, only if it was brought up during the vehicle frame warranty period. However, for those customers that trusted their dealership to take care of their vehicle and to notify them of any major safety issues like premature corrosion or rust on the frames likely to cause failure, those dealerships remained silent, despite being aware this was an issue with these models and model years. I suspect those dealerships remained silent because GM’s internal service bulletin clearly states that the bulletin only applies to customers who comment about rust or corrosion on their frame. I fortunately found out about this issue from a third party before my frame failed on the road. I've reached out to GM expressing my concerns I continue to get bounced between the dealer and GM, each saying the other is responsible. GM also failed to even acknowledge my greater concerns about the safety risk this creates. I've written a more detailed account of this story and have shared it out with several national news outlets in hope that someone will investigate further and determine if this issue has merit. Just hoping I can start sleeping again at night.