NHTSA Complaint #11491683 — 2016 KIA SORENTO

One afternoon when I started my Sorento (with Lambda Engine around 85,000 miles) I heard a loud tapping sound in the engine and saw the check engine light on. I took it in for an oil change and to get an opinion on the tapping sound at Jiffy lube. They told me I had no oil in the vehicle. They also noted no oil leaks and sludge in the engine. I took it in to the kia dealership the next day and they told me my timing chain was damaged and that I would need a new engine. I thought I was covered under the "special" 20 year warranty I had on the vehicle. My warranty claim was DENIED due to "improper maintenance"; not having sufficient oil change records and sludge being found under the valve cover. During my previous oil change 6 months & 8700 miles ago there were no issues with the engine. I also use premium synthetic oil. No oil lights had ever gone off, only the check engine light prior to taking it to a mechanic. I have also had safety issues over the last 5 months where my vehicle failed to accelerate while on the highway. The car would function as normal after stopping and cutting the car off and back on.