In December after getting letter in the mail saying I needed an upgrade to my car’s knock sensor I took it to a Kia dealership. I received word from the dealership that my car had suffered a lower crank shaft failure and would need to be replaced. The dealership told me that this was a known issue and gave me a number to call to file a claim. After months of trying to get follow-up from the Kia claim office, they denied the claim. They said my engine had suffered failure before I had the knock sensor update and if it would have occurred after they would have replaced the engine. Kia knows that there is a severe issue with the engines they put in these vehicles and they are failing to fix the problem.