1. Start the engine.
2. Set the mode to the desired position.
To improve the effectiveness of heating and cooling;
- Heating: 
- Cooling: 
3. Set the temperature control to the desired position.
4. Set the air intake control to the outside (fresh) air position.
5. Set the fan speed control to the desired speed.
6. If air conditioning is desired, turn the air conditioning system on.

Manual climate control system
Mode selectionHyundai Tucson (LM) 2010-2015 Service Manual: Compressor Repair procedures
Removal
1.
If the compressor is marginally operable, run the engine at
idle speed, and let the air conditioning work for a few minutes, then
shut the engine off.
2.
Disconnect the negative cable from the battery.
3.
Recover the refrigerant with a recovery/charging station.
4.
Loo ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Components and Components Location
Component Location
1. Horn switch2. Horn relay (Engine room compartment)3. Horn (Low pitch)4. Clock spring
...