HomeAll RepliesReply To: Shady 2015 GMC Sierra Denali 1500 service situation? Reply To: Shady 2015 GMC Sierra Denali 1500 service situation? Sponsored September 5, 2016 at 9:03 pm #138428 EODtechParticipant The DMA said he would not authorize a buy back for a sun roof problem. They replaced the seal instead of the warped sunroof frame Sponsored Subscribe to GM Authority For around-the-clock GM news coverage We'll send you one email per day with the latest GM news. It's totally free. First Name Last Name Email Address Subscribe via Email Leave this field empty if you're human: Sponsored