
The air intake control button is used to select the outside (fresh) air position or recirculated air position.
To change the air intake control position, push the control button.
Recirculated air position

The indicator light on the button illuminates when the recirculated air position is selected.
With the recirculated air bposition selected, air from the passenger compartment will be drawn through the ventilation system and heated or cooled according to the function selected.
Outside (fresh) air position

The indicator light on the button does not illuminates when the outside (fresh) air position is selected.
With the outside (fresh) air position selected, air enters the vehicle from outside and is heated or cooled according to the function selected.
✽ NOTICE
Prolonged operation of the heater in the recirculated air position (without air conditioning selected) may cause fogging of the windshield and side windows and the air within the passenger compartment may become stale. In addition, prolonged use of the air conditioning with the recirculated air position selected will result in excessively dry air in the passenger compartment.
WARNING
Temperature control
Fan speed controlHyundai Tucson (LM) 2010-2015 Owners Manual: 3. Exhaust emission control system
The Exhaust Emission Control System is a highly effective system which controls
exhaust emissions while maintaining good vehicle performance.
When the engine starts or fails to start, excessive attempts to restart the engine
may cause damage to the emission system.
Vehicle modifications
Th ...
Hyundai Tucson (LM) 2010-2015 Service Manual: A/C Pressure Transducer Repair procedures
Inspection
1.
Measure the pressure of high pressure line by measuring voltage output between NO.1 and NO.2 terminals.
2.
Inspect the voltage value whether it is sufficient to be regular value or not.
Voltage = 0.00878835 * Pressure + 0.5 [PSIA]
3.
If the measured voltage value is no ...