One problem related to sway bar has been reported for the 2015 Chevrolet Suburban. The most recently reported issues are listed below.
Front & rear of car shakes like a dump truck. Had inspection done at a local shop, since gm dealer found nothing. The sway bar frame brackets are coming loose causing excessive vibration & rattling. The truck also handles very poorly, along with the comfort of ride. Gm is aware of the problem since there are so many vehicles with this same problem. They want us to pay for another inspection to determine if they will do anything. They will not discuss the repair or the cost associated with the repair if they deem it a needed repair. The TSB # is 15-na-082, yet they claim that this is not a good number. Searching the net reveals there are many affected vehicles built from 2009 to 2017 with the affected problem.