Kia Sedona: Service Mode
Service IntervalCheck spark plugs and ignition system
Inspect your spark plugs as described in section 7 and replace them if necessary.
Also check all ignition wiring and components to be sure they are not cracked, worn
or damaged in any way. ...
Turn on FUSE SWITCH
This warning message illuminates if the fuse switch on the fuse box is OFF.
It means that you should turn the fuse switch on.
For more details, refer to ...