[robinsonjonathan]

Update: Was driving today. I shut off the climate control system completely because its a nice day and wouldn't you know, the Auto Idle Stop started working again. I can't say for sure if this "fixed" the issue but its back to working …. Go figure.

Thanks for the post. I also found that the Passport AIS on my car does not work if the climate control is set to LO. When I set the temp to 58, it started to work again. Honda should investigate this possible connection.