See also:

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

Audio System
NOTE: If you install an aftermarket HID headlamp, your vehicle's audio and electronic device may malfunction. ...

Opening the fuel filler lid
The fuel filler lid must be opened from inside the vehicle by pushing the fuel filler lid opener button. NOTICE If the fuel filler lid will not open because ice has formed around it, tap lightly ...