Bought my Sierra as a demo in 2016. Bought the undercoating for $1000 with a 10 year guarantee. I would of thought that they would honour the rusted frame however apparently it was only for the truck's skin. Recently had vehicle appraised for a trade and was told that they wouldn't accept the vehicle as the frame was that rusted they wouldn't even be able to send it to the auction. I learned about a long standing frame rust issue and read "There isn't a formal "GMC Frame Rust Recall," but GM issued Technical Service Bulletin (TSB) 19-NA-255 to address peeling frame wax coating leading to rust on 2011-2024 GMC and Chevy trucks, SUVs, and vans." I did contact the dealership and was told that this bulletin only applies to those vehicles still within the bumper to bumper warranty period - here in Nova Scotia that amounts to 60,000 Kms - seriously!!! They know they have a serious issue and have had for at least 13 years and this is what you get for your loyalty. I made an effort to contact GMC Canada customer service but couldn't get past my Vin # so I don't rate. It is now going to cost me approx $8,000 to repair the damage so that I can dump this rust bucket and move on. Shame on you GMC for your lack of customer care and your continued deceit. I guess repeat business is of no concern to you!!!
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