Kia Optima: Seat belt warning (for driver’s seat)
The driver's seat belt warning light and chime will activate to the following table when the ignition switch is in "ON" position.

*1 Warning pattern repeats 11 times with an interval of 24 seconds. If the driver's seat belt is buckled, the light will stop within 6 seconds and chime will stop immediately.
*2 The light will stop within 6 seconds and chime will stop immediately.
Seat belt restraint system
Seat belt warning (for front passenger’s seat)Seat Heater. Repair procedures
Inspection
First Seat Heater
1.
Check for continuity and measure
the resistance between No.4 and No.6 terminals.[Cushion]
No.
Description ...
Components (2)
...
Horn
To sound the horn, press the horn symbol on your steering wheel.
Check the horn regularly to be sure it operates properly. ...