I know 2013+ have a setting to keep ICE off during preconditioning if desired (e.g. you're in a closed garage and don't want to get CO poisoning). Someone told me today that the ICE will come on despite that setting if it gets VERY cold. That's the first I've heard of that, and it seems a safety issue, so I'm trying to fact-check it. Anyone ever experience this? Is there a difference between gen1/2?