I just noticed this while driving home from work tonight (yes, it's 1:30 am, no, I don't work swing or graveyard, yes I'm tired, yes I'm an addict... moving on
). When I turned the climate control to AUTO and set the temperature to heat (i.e. significantly higher than the ambient temperature), the center air vents (both driver and passenger - I almost crashed into the center divider checking the passenger side) turn off. I thought my vent was broken until I did the following:
1) Turned the AUTO temp down so that the AC kicked in - center vents worked
2) Adjusted the MODE setting so that the upper vents were activated and turned up the temperature to heat - center vents worked
3) Turned the AUTO temp up to setting Hi and left it on AUTO - center vents deactivated
This all leads me to believe that Honda designed things this way. Now I'm left to wonder why. What happens in the middle of winter (yes, it's a California winter, but it still gets a bit chilly) and I want both my hands warm without fiddling with the MODE settings?
I invite you all to try these steps to see if you can reproduce my experience. Any insight would be appreciated.