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2018 CX-5 Grand Touring: Squealing Brakes and Pedal Vibration

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Sarah K. · rep 0 · May 22, 4:48 AM · 1 replies · solved · Question

Vehicle: 2018 Mazda CX-5 Grand Touring

Hey everyone, I've got a 2018 Mazda CX-5 Grand Touring with about 65,000 miles on it. Lately, I've noticed a pretty consistent squealing noise when I apply the brakes, especially at lower speeds. It's not constant, but definitely noticeable.

On top of that, I'm feeling a slight vibration through the brake pedal and steering wheel when I'm braking from highway speeds. It's not severe, but it's enough to make me concerned. I had the pads and rotors checked about 15,000 miles ago and they seemed fine then.

Could this be warped rotors, or something else entirely? Any advice on what I should check first before taking it to a shop? Thanks!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 4:48 AM

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ClearTheCode admin answer:

Squealing brakes and pedal vibration are common issues that can stem from several sources. Here's a breakdown of potential causes and what you should do:

  1. Worn Brake Pads: Even if checked recently, pads can wear down quickly depending on driving style. As pads wear thin, the metal backing plate can contact the rotor, causing a squeal. Some pads also have wear indicators that produce a high-pitched sound.
  2. Warped Rotors: This is a very common cause of brake pedal and steering wheel vibration during braking. Rotors can warp due to excessive heat, causing an uneven surface that the brake pads grab inconsistently. This is more noticeable at higher speeds.
  3. Brake Caliper Issues: A sticking caliper piston or slide pins can cause uneven pad wear, constant friction, and potentially lead to squealing and vibration. The caliper might not be releasing properly.
  4. Contamination: Oil, grease, or brake fluid on the pads or rotors can cause squealing and reduced braking performance.

When to See a Shop:

  • Immediate Inspection: Given the vibration, it's important to have this inspected soon. Warped rotors can reduce braking effectiveness and increase stopping distances.
  • Professional Diagnosis: A qualified technician can accurately diagnose the issue by inspecting the brake pads, rotors, calipers, and other components. They will measure rotor runout and pad thickness.
  • Safety Concern: Any issue affecting your braking system is a significant safety concern. Do not delay addressing this problem.
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