Remove the floor console upper cover (A). (Refer to Body - "Console")
Disconnect the connector (A) of the seat heater switch from the floor console upper cover.
Turn on each seat heater switch and check for continuity between the terminals. If there is no continuity, replace the seat heater switch. [Ventilation + Heater][Ventilation + Heater][Heater]
Disconnect the negative (-) battery terminal.
Open the rear seat armrest (A).
Remove the rear seat armrest upper cover (A).
Disconnect the connector (A).
Turn on the rear seat heater and check the circuit continuity between the terminals.
If there is no continuity, replace the rear seat heater switch (A).
Rear Seat Heater Switch
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Test yourself
A quick Kia Cadenza VG Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.