The mesh electric sun shade that covers the rear window started malfunctioning and whenever it’s triggered, it will make an ear-shattering screech for a good 20-30 seconds straight. I have the sunshade permanently in the down position so it doesn’t go off. You can hear the noise from several meters away for. The vehicle, even with the windows and doors closed. So it’s louder than most radios… ouch. It’s all cosmetic so I didn’t fix it. But it’s annoying. Not like I could even see out my rear window anyways due to the bubbly tint.