Persistent Brake Squeal on my 2018 TLX A-Spec

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Mike T. · rep 0 · May 25, 3:41 AM · 1 replies · solved · Question

Vehicle: 2018 Acura TLX A-Spec

My 2018 Acura TLX A-Spec has developed a really annoying high-pitched squeal when I brake, especially at lower speeds. It's not constant, but happens almost every time I come to a stop. I've heard it can be normal for some cars, but this seems excessive and has gotten worse over the last few weeks.

The car has about 45,000 miles on it and I haven't had the brakes replaced yet. The stopping power still feels okay, but the noise is driving me crazy. Could it just be worn pads, or something more serious?

Any thoughts on what might be causing this and what I should check first?

✓ Accepted solution

ClearTheCode Admin

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ClearTheCode admin answer:

Persistent brake squeal, while sometimes normal, often indicates an issue that needs attention, especially if it's new or worsening. Here’s a breakdown of common causes and what to do:

  1. Worn Brake Pads: This is the most common culprit. Most brake pads have a small metal wear indicator that makes a high-pitched squeal when the pads are getting thin, signaling it's time for replacement. If your car has 45k miles on original pads, they are likely due.
  2. Glazed Rotors or Pads: If brake pads or rotors get excessively hot, their surfaces can become 'glazed' or hardened, leading to squealing. This can sometimes be resolved by resurfacing rotors or replacing pads.
  3. Contamination: Dirt, dust, road grime, or even oil/grease on the pads or rotors can cause noise. A thorough cleaning of the brake components can sometimes resolve this.
  4. Improper Installation or Cheap Pads: If the brakes were recently serviced, improper installation (e.g., lack of anti-squeal shims or lubricant) or low-quality aftermarket pads can cause noise.

When to See a Shop:

  • Immediate Inspection: Given the mileage, it's highly recommended to have your brakes inspected by a professional mechanic as soon as possible. They can accurately assess pad thickness, rotor condition, and check for any other issues.
  • Don't Delay: While squealing doesn't always mean immediate danger, ignoring it can lead to reduced braking performance and potentially more costly repairs (like rotor replacement instead of just resurfacing) if the pads wear down completely.