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2024 Buick Envision — steering wheel shakes only under highway braking — Portland / diagnosis

RotorCamperCommunity StarterJun 27, 20262024 Buick Envision AvenirPortland
2024 Buick Envision Avenir, about 43,000 miles. Cruising is smooth, but braking from highway speed makes the steering wheel shake. Pads still have material. Would you start with rotor runout/thickness variation, hub condition or suspension bushings?
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OldSchoolBuyer653Community StarterCommunity StarterJun 27, 2026permalink
I wouldn't throw parts yet. Get a real battery/charging test on the 2024 Buick Envision, not just resting voltage, before blaming a module. If the cheap test changes it, stop and reassess. I'd want a dollar figure or a measured spec, not 'should be fine.' Worth doing even if the car feels fine right now. Trying not to diagnose from the couch.
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