One problem related to wiring has been reported for the 2016 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2016 GMC Sierra 1500 based on all problems reported for the 2016 Sierra 1500.
My truck was parked at a business. I started the truck after being inside for about 10 minutes and started to smell an electrical burn/shortening. I turned the truck off, told my wife to get out and I popped the hood. By the time she walked to the back and me to the front, the rear window behind the driver shattered, sending glass inside and outside the vehicle. After opening the doors for a few minutes, the smell was gone, since I work with electronics for work, is normal for the smell. I think it was defroster and/or the sliding rear window wiring. This happened on 12/03/2019. I had escalated this up general motors customer relations and after level 2 was told it was not their issue, even after I referenced the canadian recall for this very issue. The truck, per my service writer todd, has since been recalled but I cannot find anything anywhere. My truck is still at the dealer, woody Buick GMC, naperville, IL and has not been repaired. That's also why I can't send a photo.