Kia Optima: Side Impact Sensor (SIS). Components and Components LocationComponents

Side Impact Sensor (SIS). Description and OperationReplacement
1.
Remove the front wheel & tire.
Tightening torque:88.3
~ 107.9N.m(9.0 ~ 11.0kgf.m, 65.1 ~ 79.6lb-ft)
...
Horn
To sound the horn, press the horn symbol on your steering wheel. Check the horn
regularly to be sure it operates properly.
✽ NOTICE
To sound the horn, press the area indicated by the horn ...