Toyota 2012 Prius Owner's Manual page 389

3-1. Using the air conditioning system and defogger
Defogging the windshield
Micro dust and pollen filter
Press
Outside air mode switches to recirculated air mode. Pollen is removed
from the air and the air flows to the upper part of the body.
Usually the system will turn off automatically approximately 3 minutes
later.
To stop the operation, press
362
PRIUS PHV_OM_OM47818U_(U)
.
again.
Press .
The air conditioning system con-
trol operates automatically.
(The gasoline engine may oper-
ate during EV mode driving,
depending on vehicle conditions.)
Recirculated air mode will auto-
matically switch to outside air
mode.