NHTSA Complaint #11423093 — 2017 HYUNDAI TUCSON

UNKNOWN. I bought my 2017 Hyundai Tuscon brand new in 2016. This car was not owned by anyone prior to me and had 11 miles on the dashboard. I maintained this car as I should have and got oil changes before the suggested time provided by the dealer. Now fast forward to 2020/2021 and my car is louder, making noises, not driving smoothly, and having trouble accelerating sometimes. I tell the dealer and they say nothing is wrong with my car but these problems persist. Eventually while driving to work early this year (spring 2021) my car completely stalls and will hardly drive faster than 5mph. I took the car to a mechanic (not Hyundai because they never have answers) that told me my catalytic converter was completely clogged and that it was an unusual thing to see in such a new car with only 100,000 miles on it. They replaced the converter and now it doesn’t stall. The car still continues to drive less smooth and the engine knocks and makes rattle noises but Hyundai still says they don’t see any other issue with the car. My mechanic told me it seems as if the car is burning the oil up because even when i come to get an oil change early it’s always bone dry my car is always starting to get super loud and check engine light comes on well before I’m due to change it so i take it up and get an oil change but i believe this is a defect on the car and i shouldn’t have to continue doing this eventually it’s going to cause even worse problems for my car, i read other reviews and I’m not the only one complaining of the oil burning up with no leak or other explanation, clearly this is a manufacturer defect!