I saw someone make reference to a way of setting the HVAC system for just fresh air, without AC or heat. But I haven't been able to find a search hit on any prior discussion of how to do that. I'd really like to not accidentally waste battery energy heating the car on cool summer mornings - which is more likely since I keep the setting for AC pretty high, around 78-80. Is there an easier method than setting the temperature to "Lo", AC off, and manual fan speed? That's a lot of fiddling, and it's annoying to have to spin the temp dial through 20 degrees to get back to the temp I want when cooling.