It's combo of speed, RPM, and throttle position I believe. It's actually a pretty narrow window ... but I found that in "normal" city driving, I hit it a lot, and IMO it's dangerous.
I tuned shortly thereafter and that crap is disabled ... but I was just going to unplug it. There is no harm in unplugging it - the message will still show in the info center, but you'll slide into 2nd normally.
I tuned shortly thereafter and that crap is disabled ... but I was just going to unplug it. There is no harm in unplugging it - the message will still show in the info center, but you'll slide into 2nd normally.