The indicator illuminates when the front fog lights are ON.
Hyundai Tucson (LM) 2010-2015 Service Manual: SS-B Solenoid Valve(ON/OFF) Specifications
Specifications
ON/OFF Solenoid Valve(SS-A, SS-B)
x Control type : Normal low type
Control pressure kpa (kgf/cmx, psi)490.33(5.0, 71.12) Internal resistance(x)10 ~ 11
...
Hyundai Tucson (LM) 2010-2015 Service Manual: Components and Components Location
Components
1. Hands free call switch2. Mic3. Front left speaker4. Front right speaker5. Audio head unit (hands free control)
x There is no hands free jack. This system supports Bluetooth(wireless system). ...