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Old 03-18-2012, 02:25 PM   #10 (permalink)
jamesqf
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Quote:
Originally Posted by Tango Charlie View Post
But I still haven't witnessed the Auto Idle Stop, where it's supposed to shut the engine off when you're sitting at a stop light. Maybe I've been shifting into first gear when stopped; which the owner's manual says will keep the engine running and defeat the Auto Idle Stop feature. I'll have to pay closer attention to my driving habits.
It also depends on temperature, both the coolant temp and outside air temp. There must be some complicated logic in the ECU, but generally it won't do autostop if the coolant is below about 140. If it's chilly, say around freezing, it seems to need to be up over 170 to autostop, and on really cold (like 10F) days won't autostop at all.

Shifting when you are stopped tends to do an auto-start. Generally I'm in 1st or 2nd, with the clutch in and foot on the brake, but it will also autostop in neutral with some braking. I do almost always have to have at least light brake application to invoke autostop.
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