Stabilitrak light comes on and my 2010 Denali starts making a tapping noise. What causes this?

We’d love to be able to determine what this concern is but unfortunately it can’t be accomplished here online - there are too many possibilities.. Posting a list of these possibilities isn’t beneficial. This will require **hands-on** evaluation by qualified personnel while the failure is active and may include leaving the vehicle at an auto repair facility until this evaluation can be completed. It is quite likely additional *hands-on* testing will be required to pinpoint the actual cause. Good luck!