Symbol 0636B from ISO 7000 - Title/Meaning: Rear window demisting and defrosting 
Function/description: To identify the control that distributes air flow or a low electrical current to the rear window to aid in removing frost, fog and mist. To indicate the operational status of rear windscreen demisting and defrosting.
Own work using: iso.org/obp/graphics/grs/f565393d-119e-4601-8952-cc84f53a0bfb 200.png
Vectorization:  Mrmw