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A car in profile with an arrow curling round inside it.
Also known as: Recirc, Car with a curling arrow
The arrow stays inside the car outline, which is the whole distinction: recirculation loops cabin air rather than drawing it from outside. An arrow entering the car from the front is the opposite setting.
A control marking cabin air recirculation: a car seen in profile with a curved arrow turning back on itself inside the body.
What this lamp means on a particular vehicle, and what to do about it, is in that vehicle's handbook. The symbol names the system; it does not diagnose the fault.
Contexts: Vehicle dashboard
The paired symbol shows the arrow entering the car from outside, for fresh air. Which one is lit determines whether the demister can clear the screen, because recirculated air is already humid.
The side outline of a car containing a U-turn arrow that curls back on itself within the cabin.