My 2016 Silverado 2500HD now has 27,000km and has the problem. I took it in to my dealer, One writer came for a drive with me, by the time e got back the service manager had found the TSB and right away he and a tech checked a little closer and I should be back in there soon for a repair... Does feel weird driving with slop though, limiting as much as I can... I must say I feel well taken care of by my dealer up here...