inidactor lights

We just added this article last week, hopefully it will help you with your 4wd issue: http://repairpal.com/gm-4wd-warning-light-issues

The best thing to do is having the vehicle diagnose with a scantool and checking to see what sensors are causing that light to come on it could be one sensor causing all those lights to come on

I am having the same issue minus the 4wd problem as mine is not a 4wd, did you ever find a answer to this issue?