Yukon's Stuck Sunshade: Motor vs. Fuse Mystery

Last month I dealt with a similar sunshade repair issue on my 2020 GMC Acadia. The sun visor motor completely stopped responding, keeping the sunshade stuck in a half-open position. After diagnostic testing, the issue turned out more complex than a blown fuse. The main control module for the car sunshade system had failed, causing communication errors with the motor unit. The UV protection mechanism itself was intact, but the electronic control component needed full replacement. The repair involved: Complete removal of headliner, Replacement of the sunshade control module, Recalibration of the entire sunroof system, Programming of the new module This was a serious repair requiring specialized equipment and about 4 hours of labor. The car blind system now works perfectly, but it definitely wasnt a DIY fix. Given your vehicle age and mileage, chances are you might be facing a similar control module failure rather than just a fuse issue. Would strongly recommend having this checked at an authorized dealer since they have proper diagnostic tools for the sunshade system.

Thanks for sharing that experience. My Yukon had the exact same symptoms last winter, stuck sunshade and error codes. Got mine fixed but now curious, what was your final cost for the control module replacement? My sun visor system has been working fine since the repair, but I noticed the motor seems a bit slower than before. Have you experienced any lingering issues with your car interior sunshade after getting it fixed?

Just got back from having the repair done last week. The total cost came to 330 Euro for the sun blind motor replacement, which included labor and parts. The service included a full diagnostic check of the interior accessory system to ensure everything was properly connected. The sunshade repair has completely resolved the sticking issue. Unlike your experience with a slower motor, my car blind system is actually working smoother and quieter than before. The window visor moves perfectly in both directions with no hesitation or unusual noises. The mechanic explained that new motors often seem slower at first because they are properly calibrated, unlike old ones that might have been running too fast due to wear. As long as your sun blind is moving consistently without getting stuck, a slightly slower speed is actually normal and better for long-term reliability. Since the fix, all error codes have cleared and the UV protection system has been working flawlessly. Worth every cent compared to the hassle of a stuck sunshade.

Wanted to update on my Yukon sun blind repair. Finally got up the nerve to take it to a different certified shop. Turns out the car sunshade issue was actually caused by a faulty wiring harness, not the control module like I initially suspected. The repair cost me 280 Euro, which was less than I expected after reading about others experiences. The mechanic showed me where the previous shop had actually damaged the wiring while doing other work. They fixed the harness, tested the car interior system thoroughly, and even discovered a few other minor issues that could have caused problems later. The sun visor is working perfectly now, no more error codes or sticking. Really glad I decided to get a second opinion instead of going back to the original shop. The UV protection system moves smoothly and the repair came with a solid warranty. Sometimes paying a bit more for qualified service really does make a difference.