NHTSA Complaint #11446050 — 2017 KIA SORENTO

My car was fine, then all of a sudden (after an oil change) it started knocking really loudly. I pulled over and the noise stopped- so I got back in the car a drive home. When I pulled into the driveway, I heard the noise again- knocking. I popped the hood and had daughter press the gas, sure enough- knocking again. I told husband and we parked it, he towed it to the dealership the next day. They said that because my car did not get the "campaign" update- ROD KNOCKING SENSOR- that the extended warranty was null and void. I asked to place a complaint at how the whole situation was handled- they said they mailed us letters, but they must have been the most non-descriptive letters in history. It's not safe- they know about this problem and they are not doing anything about it- they are doing the bare minimum, that is how people get hurt. We owe more to repair this vehicle than it is worth, and there is no "Goodwill" assistance on a car that wasn't "kept". I kept my car within it's normal limits, it's not right how the company chose to notify. They have all my contact info- I am the original owner. Thank goodness my teen daughter wasn't driving.