I'm sure that is the air conditioning delete choice.
Although, that does make me think about vehicles that my parents had when I was growing up. Every vehicle they purchased prior to 1987 did not have air conditioning. These vehicles were hot in the summer time, but not completely unbearable with the vents and windows open.
Now, fast forward to present day. My daily driver is a 1996 Toyota Corolla and it does not have air conditioning. On hot days, it does not do a very good job of drawing cooler outside air. Or, if it does, it gets heated up through the ductwork in the dashboard before hitting my sweaty face. Other cars I have owned are unbearable in the summertime if the a/c is broken.
My point is, those older cars did a better job of keep their occupants comfortable in the summer because the designers kept the no a/c option in mind.
This is the first time that I've seen a no a/c option referred to as an "a/c bypass". It would be nice to see a design that does a better job of drawing cooler outside air when the a/c option wasn't chosen.
/end long winded discussion