My vehicle sways like a boat side to side no matter my speed, but on the highway it almost feels like i'm losing control. i have taken the vehicle to the dealership and after having it for 4 weeks they returned my vehicle back to me not repaired and no answers to why the issue started. i was told they were requesting an hyundai field engineer to come out to inspect the vehicle but i have not heard from them in almost 2 months. *tr