Symbol 0649B from ISO 7000 - Title/Meaning: Heated seat Function/description: To identify the control for the device that warms the seat cushion and seatback. To indicate the operational status of the heated seat.
Additional information: 
Applicable to those controls which are fitted on the instrument panel, or in the near vicinity of the driver, in a road vehicle.
Own work using: iso.org/obp/graphics/grs/3d4992d3-5890-4b37-b07b-5c2880b1c920 200.png
Vectorization:  Mrmw