2015 Hyundai Sonata - Knocks

My car knocked very bad when I drive over 60 miles

Any chance you have not checked the oil level . That seems to be the first move . Of course it would help for a better description of Knocked.


Any warning lights?

Get if to the dealer. Document the issue in writing. That is a model with serious engine defects. You can learn more here. There is a recall specifically on your engine’s knock sensor.