See also:

Valve clearance
Inspect excessive valve noise and/or engine vibration and adjust if necessary. An authorized HYUNDAI dealer should perform the operation. ...

CHASSIS REFINEMENT FOR 3.8 AND 4.6 MODELS
Always seeking to enhance the Hyundai Genesis driving experience, Hyundai engineers have made further refinements to the 3.8 and 4.6 model suspension damping calibrations. These precise adjustment ...

If the engine stalls at a crossroad or crossing
If the engine stalls at a crossroad or crossing, set the shift lever in the N (Neutral) position and then push the vehicle to a safe place. ...