See also:

Checking Engine Cooling Fan
The engine cooling fan should come on automatically if the engine coolant temperature is high. ...

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

Mode selection
The mode selection button controls the direction of the air flow through the ventilation system. The air flow outlet port is converted as follows: Air flow is directed toward the upper body an ...