NHTSA Complaint #11632586 — 2016 CHEVROLET SILVERADO 2500

At only 71,000 miles the 6L90 transmission had to be replaced in my Silverado because of slippage in fifth, sixth and heavy metal shaving showing in the pan. I have never plowed with this truck or abused the transmission. I've only towed up to 7,000 lbs which is well within specifications. As I continue to talk with other owners of the 6L90 and various mechanics, it has become evident that this particular transmission has a very high failure rate. Unfortunately the core to the failed transmission has already been returned, but what if something major internally failed that locked up the drivetrain and caused an accident? My mechanic John Portal has replaced several 6L90's with multiple types of failures. The only warning I received from the transmission was an engine light which only appeared after the transmission started to fail.