This warning light illuminates:
Kia Niro 2017 (DE HEV) Service Manual: Power Seat Control Switch Schematic diagrams
Circuit Diagram
[Driver power seat
switch]
(Non-IMS Type)
(IMS Type)
...
Kia Niro (DE HEV) Owners Manual: Seat warmer
■ Front seat
■ Rear seat
The seat warmer is provided to warm the front seats during cold weather. With
the ignition switch in the ON position, push either of the switches to warm the
driver's seat or the front passenger's seat.
During mild weather or under conditions where the ...