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: Filler-Neck Assembly Repair procedures
Removal
1.
Remove the rear-LH wheel, tire, and the inner wheel house.
2.
Disconnect the fuel filler hose (A) and the ventilation hose (B).
3.
Open the fuel filler door and unfasten the filler-neck assembly mounting screw (A).
4.
Remove the filler-neck assembly from the vehicle after ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Hands Free Switch Repair procedures
Inspection
1.
Check the handsfree remote control switch for resistance between No.4 and No.5 terminals in each switch position.
[Call + Hang Up]
[Voice]
[Call + Hang Up]
SwitchConnector terminalResistance (±5%) Output voltage (±0.16V)Call4-5 (Left)40.91 kx2.96VHang up4-5 (Left)18.91 kx2.64 ...