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. ...

Horn
Press the pad on the steering wheel to sound the horn. ...

Tire pressure monitoring system (TPMS)
(If installed) Low Tire Pressure Telltale. TPMS Malfunction Indicator. Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure ...