I have a question...Granted, nifty idea for switching in to 2wd, but that said, why ignore the service light. You have a more advanced transfercase than the older bravadas or the 4x4's. Why ignore a potentially serious mechanical problem with a work around instead of getting it fixed properly and then using the work around for fun knowing that at any time you can simply pop back into awd? Just curious, not flaming or anything.