The temperature control knob allows you to control the temperature of the air flowing from the ventilation system.
To change the air temperature in the passenger compartment, turn the knob to the right position for warm air or left position for cooler air.
Hyundai Tucson (LM) 2010-2015 Service Manual: Rail Pressure Sensor (RPS) Schematic Diagrams
Circuit Diagram
(M/T)
(A/T)
...
Hyundai Tucson (LM) 2010-2015 Service Manual: Compressor Oil Repair procedures
Oil Specification
1.
The HFC-134a system requires synthetic (PAG) compressor oil
whereas the R-12 system requires mineral compressor oil. The two oils
must never be mixed.
2.
Compressor (PAG) oil varies according to compressor model. Be sure to use oil specified for the model of compress ...