Buzzing or Humming at Speed
No Rush — Urgency 2/5Safe to drive for now, but get it checked within a couple of weeks. A very worn wheel bearing can eventually seize or come apart, though this is rare. If the noise is very loud or you feel vibration, get it checked sooner. This is general guidance — a mechanic can diagnose the exact cause.
This is general guidance. Your situation may differ — when in doubt, don’t drive.
What does it sound like?
A low buzzing, humming, or droning noise that starts or gets louder at certain speeds. It might change tone when you go around a bend or switch lanes. It can sound like you are driving on a rumble strip even though the road is smooth.
What could be causing it?
It can also be caused by uneven tire wear (especially cupping or feathering), certain tire types on particular road surfaces, or a worn transmission bearing. Wind noise from a loose door seal or trim piece is another possibility.
What should I do right now?
First, check your tires for uneven wear — run your hand over the tread and feel for high and low spots. If the tires look fine, it is likely a wheel bearing. Book a mechanic visit — they can identify which bearing is worn by listening and testing each wheel.