
While the engine is running, push either of the switches to warm the driver's seat or front passenger's seat.
During mild weather or under conditions where the operation of the seat warmer is not needed, keep the switches in the OFF position.
Each time you push the switch, the temperature setting of the seat is changed as follows :

The seat warmer defaults to the OFF position whenever the ignition switch is placed in the ON position.
✽ NOTICE
With the seat warmer switch in the ON position, the heating system in the seat turns off or on automatically depending on the seat temperature.
Seat warmers
Seat beltsHyundai Tucson (LM) 2010-2015 Service Manual: Description and Operation
Description
The SMART KEY system is a system that allows the user to
access and operate a vehicle in a very convenient way. To access the
vehicle, no traditional key or remote control unit is needed.
The user carries a SMART KEY FOB which does not require any
conscious actions by the user ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Variable Intake Solenoid (VIS) Valve Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the VIS valve connector.
3.
Measure resistance between VIS valve terminals 1 and 2.
Specification: Refer to "Specification"
Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
...