Kia Optima: DescriptionThe Rain sensing windshield wiper system is a wiper system that, in addition to providing normal wiper functions off, mist, manual low speed, manual high speed, and wash, provides automatic control of automatic intermittent automatic low, and automatic high speeds.
When the ignition key is in the ON position, the rain sensor (A) will be activated.

System FunctionRemoval
1.
Remove the timing chain. (Refer
to Timing system in this group)
2.
Install a stopper pin (A) after
compressing the balance shaft chain tensioner.
3.
...
Resetting the sunroof
Whenever the vehicle battery is disconnected or discharged, or related fuse is
blown, you must reset your sunroof system as follows:
1.Turn the ignition switch to the ON position and close the sunr ...
Side Impact Sensor (SIS). Components and Components Location
Components
...