If you really don’t know. It circulates the air inside the car instead of bringing air in from outside the car. I use it when I want to warm my car in the morning if it’s extremely cold.
@Dimir FTW, no no no that's the "redo your day button" you just press it to redo everything when you have a bad one!
@The Big Hodge, dude! Mine must be broken! Nothing is happening!!! I think I need to change my radio coolant
@seeUpee, could be the headlight fluid!
@Dimir FTW, it will also put a lot less of a strain on the a/c on hot days. Tbh theres really no reason to ever not use this function unless you just want air coming in without rolling the window down
Only if your blinker fluid is filled
@DiSoNeGuY, PSA: Remember to change your blinker fluid to the winter formula.
Boy wouldn’t we all want that button to do that
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