What Causes Car Brake Shaking at High Speed but Not at Low Speed?

[PrestonLee]

1. Wheel rim deformation. Deformed wheel rims can cause uneven tire surfaces and wheel imbalance, leading to noticeable shaking during high-speed braking. 2. Abnormal tire wear or punctures can disrupt tire balance, resulting in brake shaking. 3. Half-shaft resonance. If the half-shaft or drive shaft becomes bent, it can disrupt the drive shaft's balance, causing resonance during braking, which is usually more noticeable at higher speeds. 4. Brake disc deformation. When brake pads come into contact with a deformed brake disc, the tires may shake. If your car experiences brake shaking at high speed but not at low speed, it is recommended that you immediately visit a 4S shop or repair facility for inspection and maintenance to avoid serious consequences. Now, do you understand what causes car brake shaking at high speed but not at low speed?

[VanPiper]

As a veteran driver with decades of experience, I believe that brake vibration at high speeds but not at low speeds is mainly caused by thermal deformation of the brake discs. At high speeds, the vehicle moves faster and the braking force is greater, generating frictional heat that raises the surface temperature of the brake discs. If they cool unevenly—such as after driving through a puddle and then braking hard—the disc surface can easily warp. At low speeds, the braking force is weaker and insufficient heat is generated, so the issue doesn’t manifest. This seriously affects braking balance, causing the steering wheel to vibrate and leading to unstable control or even dangerous skidding. From my experience, this situation is more likely to occur with frequent brake use, so it’s important to regularly check the thickness and flatness of the brake discs as a habit. If vibration is detected, promptly visit a repair shop for resurfacing or replacement—don’t wait until safety becomes an issue.

[StHenry]

I prioritize safety highly, especially when traveling with children. The issue of brake shudder at high speeds is particularly concerning. It only occurs at high speeds and not at low speeds, with the core reasons often being brake disc deformation due to high-temperature braking or uneven wear of brake pads. The thermal effects are amplified at high speeds, causing the braking system to shake the steering wheel. This poses a risk of losing control; imagine the consequences if an emergency brake is needed on the highway. As a family driver, I believe it's essential to address this immediately by seeking professional diagnosis and repair. At the same time, I'd like to remind everyone to maintain the brake system regularly, such as conducting a comprehensive inspection annually to prevent similar failures. Don't overlook major safety concerns to save a little money—safe driving brings peace of mind.

[RicardoAnn]

As a young car enthusiast, I'm passionate about studying automotive technology. High-speed brake shudder is commonly caused by thermal deformation of the brake discs. During high-speed braking, the greater force generates uneven friction heat, which can easily warp the disc surface. Low-speed braking with smaller forces doesn't cause this issue. The problem might stem from uneven disc surfaces or material aging, and replacing the components when necessary can solve it.