Using a flat-tip screwdriver, wrap protective tape around the tip and apply protective tape around the relevant parts to prevent damage.
Use a plastic panel removal tool to remove the interior trim parts so as not to damage the surface.
Be careful not to bend or scratch the trim and panels.
Remove the rear seat cushion assembly. (Refer to Rear Seat - "Rear Seat Assembly")
Loosen the heater ECU mounting screws (A).
Disconnect the heater ECU connector (B) and remove the mounting clips (C). [LH][RH]
Remove the ring clip (A) and the hook-and-loop fastener (C) on the rear of the seat cushion, then remove the rear seat cushion cover (B). [Rear side][Front side]
Install in the reverse order of removal.
To prevent wrinkles, make sure the material is evenly stretched over the cover (B) before fastening the clips (A).
Replace the ring clips with new ones using the special service tool (C) (09880-4F000).
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Test yourself
A quick Kia Soul EV Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.