NHTSA Complaint #11435340 — 2015 CADILLAC ESCALADE

2015 Cadillac Escalade had 65,186 miles on it. Was driving home with family and the engine started knocking. The code that was reported was P0300. Constant engine misfire. The replaced it under factory warranty. 1 year later, the same thing happen. Was driving with the family and engine started misfiring. Had it in the shop a couple of weeks before for preventive maintenance. Nothing was called out with the vehicle. Now GM is trying to charge me $9700 to replace the engine that was suppose to be new. Very disappointing that I am a long time consumer with 2 Cadillac's and treated like I did something wrong be Service Manager. This engine is faulty and needs to be recalled!