2020 GMC Yukon — windshield replacement created a highway whistle

This is usually cheaper to test than to guess. Two 2020 GMC Yukons can feel identical and have different causes, so measure before you copy someone else's repair. That's the branch I'd chase this week. This is from a 2020 GMC Yukon in Cleveland. Had a similar mess a couple years ago and that's what finally sorted it. Make the next action something you can finish this week. I'd rather look cautious in this thread than stuck later.

Start with the test that can prove you wrong. A pressure test beats staring at a dry driveway if the 2020 GMC Yukon is losing coolant with no puddle. You'll know quickly if you're on the wrong tree. If it doesn't change the out-the-door or the repair estimate, it's noise. Heat soak after errands is the other window.

Intermittent stuff lies if you only catch it once. Loaded-suspension checks on the 2020 GMC Yukon catch play that a wheels-hanging inspection misses. That's the branch I'd chase this week. On “windshield replacement created a highway whistle,” that was the fork that mattered for me. That's the sequence I'd use. I'm keeping receipts and dates in one folder.

I'd want a measurement, not a hunch. If a shop can't duplicate it on the 2020 GMC Yukon, bring a video plus freeze-frame data, not just a story. If the cheap test changes it, stop and reassess. I'd want a dollar figure or a measured spec, not 'should be fine.' Doing the boring step first on purpose.