NHTSA Complaint #11709024 — 2019 NISSAN TITAN

I had a check engine light for catalytic converter bank 1. Added a cleaner to see if that would help - instructions mention run 1 - 2 tanks of gas after adding, so I did that, it took a while since I dont use the truck as often. The light did not clear so I was planning on bringing it in. I was on the highway and the check engine light starting flashing and power loss occurred. I limped off the highway and got it towed. It had 3 codes on check engine light. Other than the check engine light, no warnings, messages, nor symptoms appeared or occurred prior to the flashing check engine light. Got to Mastria Nissan, they looked at it for not long (morning) and said the engine and other components were junk. Presented a $27,000 bill. They did not tear it down nor illustrate what went wrong. Police nor insurance inspected the truck. Safety was compromised as it died on the highway where everyone was doing 70 plus. Had to limp off the highway as the pull off area was very busy and not spacious whatsoever. Truck has 28,000 miles on it and was planning on the 6th oil change. The first 2 were done at Nissan and I changed the oil myself other times. Drained oil had an appropriate volume. No oil has ever leaked. I have order history on oil and have the last oil change oil in my garage still. I filed a claim with Nissan corporate, I have emails with them, but i got a denial over phone on January 5th. They claimed they dont have enough service history and im 6 months out of warranty. Also, on the call, they refused to send the denial by email or regular mail.