See also:

Side repeater light bulb replacement (if equipped)
If the light bulb is not operating, have the vehicle checked by an authorized HYUNDAI dealer. ...

Additional safety precautions
• Never let passengers ride in the cargo area or on top of a foldeddown back seat. All occupants should sit upright, fully back in their seats with their seat belts on and their feet on the floor. ...

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