2018 Chevrolet Tahoe — windshield replacement created a highway whistle

Start with the test that can prove you wrong. Get a real battery/charging test on the 2018 Chevrolet Tahoe, not just resting voltage, before blaming a module. You'll know quickly if you're on the wrong tree. This is from a 2018 Chevrolet Tahoe in Baltimore. If you share a photo of the worksheet, easier to sanity-check. I've seen both outcomes, which is why I'd test instead of assume. I keep a notes app thread for this now.