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2018 Outback: Squealing Brakes & Steering Wheel Vibration During Braking

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David L. · rep 0 · May 22, 3:14 AM · 1 replies · solved · Question

Vehicle: 2018 Subaru Outback Limited

Hey everyone,

I've got a 2018 Subaru Outback Limited with about 75,000 miles on it, and I'm starting to notice some concerning issues with the brakes. For the past few weeks, I've been hearing a pretty loud squealing noise every time I apply the brakes, especially at lower speeds. It's getting progressively worse.

On top of that, I've started to feel a noticeable vibration through the steering wheel when I brake from highway speeds. It's not constant, but definitely happens more often now. I haven't had the brakes serviced in a while, but I'm wondering if this is just normal wear and tear or something more serious. Any ideas what could be causing this, and what I should check first?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 3:14 AM

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ClearTheCode admin answer:

Your description of squealing brakes and steering wheel vibration during braking on your 2018 Subaru Outback points to a few common issues related to your braking system. Given the mileage, it's likely due to wear and tear.

Common Causes:

  1. Worn Brake Pads: Squealing is often the sound of the brake pad wear indicators rubbing against the rotor, signaling that your pads are at the end of their life. If the pads are completely worn, you might hear a grinding sound, which means metal-on-metal contact and can damage the rotors.
  2. Warped Brake Rotors: The vibration you feel in the steering wheel, especially at higher speeds, is a classic symptom of warped front brake rotors. Rotors can warp due to excessive heat, improper installation, or uneven wear, causing an uneven surface for the pads to grip.
  3. Sticking Calipers: Less common, but a sticking brake caliper can cause uneven pad wear, overheating, and contribute to both noise and vibration.

Troubleshooting Steps:

  1. Visual Inspection: Carefully inspect your brake pads and rotors. Look for thin pads, deep grooves, or discoloration on the rotors. You can often see the wear indicator if the pads are low.
  2. Listen for Grinding: If you hear a grinding noise, stop driving immediately and have your vehicle towed to a shop, as this indicates severe damage.

When to See a Shop:

It is highly recommended to have your Subaru inspected by a qualified mechanic as soon as possible. Driving with worn pads or warped rotors compromises your vehicle's stopping power and safety. A professional can:

  • Accurately diagnose the cause of the noise and vibration.
  • Measure rotor runout to confirm warping.
  • Replace worn brake pads and rotors (often recommended to replace both axles at the same time for even braking).
  • Inspect calipers, brake lines, and fluid for any other issues.

Addressing these issues promptly will restore your braking performance and ensure your safety on the road.

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