Traction control/Stabilitrak issues

[azbachlr]

I have an 07 LTZ nothing aftermarket but wheels and tires. Just in the past few months while driving its telling me to service stabilitrak and traction control is off. I could go a few weeks and not see this warning. Seems to happen more if I hit some sort of bump like a driveway or into a parking lot. Took to the dealer and had fixed some sensor not seeing the steering wheel not straight? Didn't fix issue. If I get the warning and I shut vehicle down and give it a few minutes it will reset and most times not warn again. I still have warranty and would like to be able to just tell them what to look for instead of getting the runaround fixing things that won't fix the issue at hand. Im I or my 07 crazy or do I really need something done? Thanks