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)Description and Operation
Refrigeration Cycle
...
Parking Brake
• To set the parking brake, pull the parking brake handle fully and firmly upward
while applying the service brake.
• To release the parking brake, pull the handle up slightly and push the ...
Release Residual Pressure in Fuel Line
Whenever the high pressure fuel pump, fuel pipe,
delivery pipe, or injector is removed immediately after shutting off
the engine, an ...