NHTSA Complaint #11453171 — 2016 HYUNDAI SONATA

Car started bucking and slowing on freeway. Took car to dealership October 2021 after 2 weeks, I was informed the car needed a new engine. A few days later I was informed, my battery needed replacement. Three months later, January 31, 2022 while in the freeway, my car started bucking then decelerated from 70 mph to 10-20 mph on the freeway ( only reached 40 mph going down hill). Check HEV system and Check Hybrid system indicator triangles were on. Battery light indicator and engine light indicator also on. I had car towed to dealership. I was informed I needed two plugs replaced. 2 weeks later, the same problem happened again on February 19, 2022 I was informed, I needed two plugs replaced. The plugs were replaced. This time it wasn’t two weeks before the same thing happened again. Warning lights displayed: check HEV system, check Hybrid System, battery and engine lights are on. Car doesn’t accelerate over 15 mph. This vehicle has had several recalls, which I am told all recalls check out fine. No one can find a reason why the HEV, battery and engine lights are on. In the meantime, I’ve purchased a battery, spark plugs, rented a car, spent almost $1000. This vehicle is hazardous and an accident waiting to happen. There has been at least a few engine and electrical recalls. I don’t understand why the car is passing the recalls, but exhibits the problems mentioned on recall. I feel like the dealership is waiting for my engine to fall out of warranty. Either the mechanic or machine isn’t fully operational. I don’t want to be on a freeway the next time my vehicle stops and have an 18 wheeler or other vehicle run into me.