2022 hybrid: high-frequency vibration when braking firmly at highway speeds. Could it be anything other than warped rotors?
2022 Maverick Hybrid, 60k miles. I typically have a light foot and don't end up using the mechanical brakes much in normal driving. The pads still have plenty of meat.
On a road trip recently, I noticed what feels like warped rotors...a high-frequency and speed-relative vibration when braking firmly (i.e. beyond the regen range when the mechanical pads engage) at highway speeds. It happened consistently throughout the ~3k mile trip, so it isn't just your typical surface corrosion that needed to get burned off. I don't notice it at lower speeds, maybe because there's just less mechanical brake engagement, or maybe it's a harmonic frequency kind of thing.
My only hesitation is that with my driving and the hybrid's regen system, the rotors really shouldn't be warped this soon. Is there anything else it could be?