Kia Optima: Schematic DiagramsSystem Block Diagram

Components and Components Location
Description and OperationInstallation
1.
Remove the ignition key from
the vehicle.
2.
Disconnect the battery negative
cable from battery and wait for at least three minutes before beginning
work.
...
MAINTENANCE UNDER SEVERE USAGE CONDITIONS (T-GDI ENGINE)
The following items must be serviced more frequently on cars mainly used
under severe driving conditions.
Refer to the chart below for the appropriate maintenance intervals.
R : Replace
SEVE ...
Safety Belt Warning Chime
If the driver's lap/shoulder belt is not fastened when the key is turned ON or
if it is unfastened after the key is turned ON, safety belt warning chime sounds
for approximately 6 seconds. ...