2024 Buick Envision — steering wheel shakes only under highway braking

I'd want a measurement, not a hunch. Write temp, speed, and in-gear vs coast when the 2024 Buick Envision does it — then decide on parts. That's the branch I'd chase this week. Stop there until you know. Only after sitting overnight so far.

Log the conditions before you spend. Get a real battery/charging test on the 2024 Buick Envision, not just resting voltage, before blaming a module. That's the branch I'd chase this week. On “steering wheel shakes only under highway braking,” that was the fork that mattered for me. I'd want a dollar figure or a measured spec, not 'should be fine.' If the story changes I'll post the new data.

I'd want a measurement, not a hunch. If a shop can't duplicate it on the 2024 Buick Envision, bring a video plus freeze-frame data, not just a story. If the cheap test changes it, stop and reassess. I'd want that in writing, not as a promise. Doing the boring step first on purpose.

Start with the test that can prove you wrong. Get a real battery/charging test on the 2024 Buick Envision, not just resting voltage, before blaming a module. Don't erase codes until someone who can help has seen them. Was this after sitting overnight? I already checked the easy fluid levels.

Cleared nothing. I want service to see the alert on the 2024 Buick Envision first. Trying not to diagnose from the couch.

Ask what changed right before it started. Swap the cheap/easy piece first on the 2024 Buick Envision and see if the fault moves. Save the big job until that test fails. Happy to compare notes if your setup is different. Parking it somewhere I can hear it better next time.