The indicator light illuminates when the cruise control system is enabled.
The cruise indicator light in the instrument cluster is illuminated when the cruise control ON-OFF button on the steering wheel is pushed.
The indicator light turns off when the cruise control ON-OFF button is pushed again.
Hyundai Tucson (LM) 2010-2015 Service Manual: Blower Unit Components and Components Location
Component Location
Components
1. Intake Case (LH)2. Intake Case (RH)3. Blower motor4. Intake door5. Intake actuator6. Mosfet [Auto type]7. Resistor [Manual type]8. Climate control air filter cover9. Climate control air filter10. Ionizer11. Blower case [Upper]12. Blower case [Lower]
...
Hyundai Tucson (LM) 2010-2015 Service Manual: Intake Actuator Description and Operation
Description
1.
The intake actuator is located at the blower unit.
2.
It regulates the intake door by signal from control unit.
3.
Pressing the intake selection switch will shift between recirculation and fresh air modes.
...