NHTSA Complaint #11452168 — 2017 HYUNDAI ELANTRA

November 2, 2021 driving on the freeway, car started to shake, travelling at approximately 5mph in traffic. Check engine light came on and stayed on. Not knowing what was going on with the car took it to an independent mechanic to determine the problem. Mechanic ran diagnostics and determined car was misfiring. All 4 spark plugs were replaced and 2 coils. Induction cleaning was performed. February 4, 2022 car started shaking at a stop light, pulled into a parking lot. My father came to get the car and the check engine light came on. My father used an OBD meter and determined the car was misfiring once again. He was going to replace the coils himself, called Hyundai to see how much they would charge and was told that it was under warranty. Hyundai ended up replacing 4 coils. The coils placed installed in November did not meet the new coils that Hyundai is now using as OEM parts. Seems like this should be a recall if Hyundai knows that the coils delivered with the car our faulty. Tried to recover some of the costs from Hyundai for the previous work and was told they do not reimburse work done at independent mechanics.