Like JSM I was going to purchase 2015 yukonxl denali until I discovered this site, talking to local dealers around Hamilton area which treat you like this is not an issue I became disgusted. Iam now seriously looking at infiniti QX80 plus a new ford p.u. Like others I feel GM is well aware of this problem and does not have a solution so they do not reply. I contacted them in the recent past and received a smoke and mirrors reply. This site has saved me a lot of future agravation and also money as it appears.