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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 110 (Windshield Wiper/Washer System (Except HEV)) >> Rain Sensor >> Description and Operation >> Functions and Operating Principles >> Interference
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Functions and Operating Principles: Interference

WARNING: This page is about a different variant/trim than selected.

Rain sensor might malfunction due to the interferences listed below.

  1. Dust on the measuring surface and other surfaces on the light path (surface of light emitting diodes and photo diodes, fiber optics, bracket, and glass surface of windshield joint area) weakens the received light.
  2. Movement of windshield and bracket
  3. Movement of bracket due to vibration
  4. Damaged wiper blade
    NOTE: When the integrated rain sensor does not operate or malfunctions, the driver should operate the wiper switch manually.