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2022 Chevy Colorado Z71 Brake Pedal Pulsation/Vibration

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Chris P. · rep 0 · May 25, 1:44 AM · 1 replies · solved · Question

Vehicle: 2022 Chevrolet Colorado Z71

Hi all,

I'm experiencing a concerning issue with the brakes on my 2022 Chevrolet Colorado Z71. When I apply the brakes, especially at highway speeds or when coming to a stop from higher speeds, I feel a significant pulsation or vibration through the brake pedal and sometimes the steering wheel.

It's not constant, but it's happening more frequently now. The truck only has about 25,000 miles on it, and I wouldn't expect brake issues this early. There's no grinding noise, just this annoying pulsation. I've heard this could be warped rotors, but I'm not sure.

Has anyone else with a 2020-2023 Colorado experienced this? What was the cause, and what was the fix? I'm trying to figure out if this is a warranty issue or something I'll have to pay for out of pocket. Any advice on diagnosing or resolving this would be great!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 1:44 AM

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ClearTheCode admin answer:

Brake pedal pulsation or vibration during braking in your 2022 Chevrolet Colorado Z71 is a common symptom that points to an issue with your braking system. While 25,000 miles might seem early, several factors can contribute to this.

  1. Likely Causes of Brake Pulsation:

    • Warped Brake Rotors: This is the most common cause. Rotors don't truly 'warp' in the traditional sense, but rather develop uneven thickness (runout) or hot spots due to improper braking habits, excessive heat, or uneven lug nut torque. This uneven surface causes the brake pads to grab and release inconsistently, leading to pulsation.
    • Uneven Pad Transfer: Material from the brake pads can transfer unevenly onto the rotor surface, creating high spots that mimic a warped rotor.
    • Sticking Brake Caliper: If a caliper piston or slide pin is sticking, it can cause uneven pad wear and localized overheating on the rotor, leading to pulsation.
    • Suspension/Steering Components: Less common, but worn wheel bearings, tie rods, or control arm bushings can sometimes amplify or mimic brake pulsation.

  2. Diagnosis and What to Check:

    • Visual Inspection: Look at the rotors for any visible scoring, grooves, or blue/dark spots (indicating excessive heat). Check the brake pads for uneven wear.
    • Rotor Runout Measurement: A mechanic can measure the lateral runout of the rotors using a dial indicator. If the runout exceeds specifications, the rotors need to be replaced or machined (if sufficient material remains).
    • Caliper Inspection: Ensure the calipers are moving freely and not sticking.
    • Wheel Bearing Check: A mechanic can check for play in the wheel bearings.

  3. When to See a Shop:

    • You should have your Colorado inspected by a qualified mechanic as soon as possible. Brake issues are a safety concern.
    • Warranty: Brake components (pads, rotors) are typically considered wear items and may not be fully covered under warranty unless a defect in material or workmanship is found within a very short initial period or mileage. However, if the issue is traced to a faulty caliper or another non-wear component, it might be covered. It's worth checking with your dealership.
    • OBD Codes: Brake pulsation usually does not trigger OBD-II codes unless it's severe enough to affect the ABS system (e.g., wheel speed sensor issues, which would typically also trigger an ABS light). A mechanic can still scan for any stored ABS or chassis control module codes.
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