I have a 2018 GMC Terrain Denali that has 3,000 miles and I am having some issues with my overhead lights, sunroof and garage openers not working after my vehicle is sitting outside in the sun. Is anyone else having this problem?
Thank you for your response. I have been to my dealership and they said there are no bulletins for the problem I am experiencing. My service person said he was going to contact GM. I have emailed GM as well, but have not heard back from them yet. I emailed my service person just now about a possible faulty module for those upper controls. I hope they can fix it soon, since I cannot utilize those controls.