The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

2018 Enclave - Steering wheel shakes when braking, especially at highway speeds

0

Mike T. · rep 0 · May 25, 2:45 AM · 1 replies · solved · Question

Vehicle: 2018 Buick Enclave Premium

Hey everyone,

I've got a 2018 Buick Enclave Premium, and lately, I've noticed a pretty significant shudder in the steering wheel and brake pedal when I apply the brakes, especially when slowing down from highway speeds. It's not as bad at lower speeds, but it's definitely there.

I had the brakes serviced about a year ago, but this feels like something more than just worn pads. Could it be warped rotors again, or something else entirely? Any advice on what to check first would be greatly appreciated. It's making me a bit nervous on long trips.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 2:45 AM

0

ClearTheCode admin answer:

This sounds like a classic symptom of warped brake rotors, but it could also indicate other issues within your braking or suspension system. Here's a breakdown of common causes and diagnostic steps:

  1. Warped Brake Rotors: This is the most common cause of steering wheel shudder during braking. Rotors can warp due to excessive heat, improper installation, or uneven wear. When warped, the rotor's surface isn't perfectly flat, causing the caliper to grab unevenly.
  2. Uneven Brake Pad Wear: While less common for shudder, uneven pad wear can sometimes contribute to inconsistent braking force and vibration.
  3. Loose or Worn Suspension Components: Worn tie rod ends, control arm bushings, or wheel bearings can amplify vibrations from the brakes or even cause similar symptoms independently. A thorough inspection of these components is crucial.
  4. Improper Wheel/Tire Balance or Runout: While usually felt as a vibration at certain speeds without braking, severe imbalances or out-of-round tires can sometimes exacerbate braking vibrations.

When to see a shop:

  • Immediate Action: If the shudder is severe, or if you notice a significant decrease in braking performance, it's critical to have it inspected immediately. Compromised braking is a safety hazard.
  • Professional Diagnosis: A qualified technician can perform a comprehensive inspection, including:
    • Measuring rotor runout with a dial indicator.
    • Checking brake pad thickness and wear patterns.
    • Inspecting calipers for proper function and guide pin lubrication.
    • Examining all front-end suspension and steering components for play or wear.
    • Checking wheel bearings for looseness.

Addressing this promptly will ensure your safety and prevent further damage to your braking system.

Menu

Help & account