The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer to the chart below for the appropriate maintenance intervals.
R: Replace
I: Inspect and, after inspection, clean, adjust, repair or replace if necessary

150,000 miles (240,000 km) or 120 monthsHyundai Tucson (LM) 2010-2015 Service Manual: Temperature Control Actuator Repair procedures
Inspection
1.
Ignition "OFF"
2.
Disconnect the connector of temperature control actuator.
3.
Verify that the temperature control actuator operates to the
hot position when connecting 12V to the terminal 3 and grounding
terminal 4.
Verify that the temperature control actuator operate ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Overdrive Clutch Control Solenoid Valve(OD/C_VFS) Specifications
Specifications
Direct control VFS[OD/C]
x Control type : Normal high type
Control Pressure kpa (kgf/cmx, psi) 500.14 ~ 9.81(5.1 ~ 0.1, 72.54 ~ 1.42)Current value(mA)50 ~ 850 Internal resistance(x)5.1
...