Lexus RX350 Shakes When Braking

Common Causes of Brake Shaking in Your Lexus RX350 and How to Resolve Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
55% chance it's the
Brake Rotor
0%
20% chance it's the
Brake Pad
0%
10% chance it's the
Old Brake Fluid
0%
15% chance it's
Something else
The most common reasons a Lexus RX350 shakes when braking are bad brake rotors, bad brake pads, or a bad wheel bearing.
  • Brake Rotor: A warped or worn brake rotor can cause vibrations during braking and reduced stopping power.
  • Brake Pad: A worn or damaged brake pad can lead to reduced braking efficiency and increased stopping distances.
  • Old Brake Fluid: Old brake fluid can absorb moisture over time, leading to reduced braking performance and potential corrosion within the brake system.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

Troubleshooting Shaking When Braking in a Lexus RX350

When troubleshooting shaking when braking in a Lexus RX350, it's essential to adopt a systematic diagnostic approach. Start by inspecting the brake rotors, as warped or unevenly worn rotors are a common culprit for vibrations during braking. Next, examine the brake pads for any signs of uneven wear or pressure distribution, which can also lead to pedal vibrations. If these components appear to be in good condition, check the wheel bearings, as worn or damaged bearings can contribute to shaking. Additionally, inspect the brake calipers for rust or seizing, as these issues can mimic rotor problems. Don't overlook the suspension and steering components; loose or worn parts can cause noticeable wobbling in the steering wheel. Finally, ensure that your vehicle's wheel alignment is correct and check the tires for uneven wear or damage, as these can significantly impact braking performance. By following this methodical approach, you can effectively identify and address the root causes of shaking when braking, ensuring a safer driving experience.

What Causes Shaking When Braking in a Lexus RX350?

When you experience shaking while braking in your Lexus RX350, it's essential to understand the common problems that could be causing this issue. One of the primary culprits is bad brake rotors, which can become warped over time due to heat and wear, leading to vibrations when you apply the brakes. Similarly, worn brake pads can contribute to this shaking, as they may not make even contact with the rotors, resulting in uneven braking. Additionally, a defective wheel bearing can cause significant vibrations, often accompanied by grinding or knocking noises, especially during turns. It's also worth considering the condition of your suspension system, as any issues here can exacerbate braking problems. Lastly, ensure that your lug nuts are properly torqued; uneven or over-torqued lug nuts can lead to rotor misalignment, further contributing to the shaking sensation. By addressing these common issues, you can enhance your vehicle's braking performance and ensure a safer driving experience.

Why is My Lexus RX350 Shaking When Braking?

When your Lexus RX350 shakes while braking, it’s crucial to address the issue promptly, as neglecting it can lead to serious safety risks and costly repairs. The shaking sensation often stems from problems such as warped brake rotors, worn brake pads, or even issues with wheel bearings. If left unchecked, these conditions can worsen, potentially leading to brake failure or accidents. Additionally, rusted or seized brake calipers can exacerbate the problem, mimicking the symptoms of warped rotors. It’s essential to inspect the brake components regularly, as even a slight reduction in brake pad thickness can significantly impact performance. With only 1 millimeter of pad thickness being the minimum specification for most Lexus vehicles, driving with worn pads can not only cause vibrations but also compromise your vehicle's braking efficiency. Therefore, if you notice any shaking when braking, it’s advisable to conduct a thorough inspection or consult a professional to ensure your safety on the road.

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