What Causes the Clicking Sound When Braking at High Speed?

[DeMichael]

Here are the reasons for the clicking sound when braking at high speed: 1. If there is a clicking sound when braking hard, it is best to have it inspected at a professional repair shop. 2. Even if some noises are normal, such as during the break-in period of a new car or ABS operation, braking is a critical aspect of driving safety, so it's better to be cautious. Below is more information about braking: (1) If you hear a "click" sound between the transmission and the gear lever when pressing the brake pedal, the main cause is the electronic linkage between the braking system and the automatic transmission. Pressing the brake activates the transmission solenoid valve, producing the "click" sound, and you must press the gear lock button to shift—this serves as a safety reminder. (2) If the clicking sound occurs even with light braking, or if your vehicle does not have an automatic gear lock button, or if the sound is continuous or recurring, you should be very careful. It is highly likely that there is a fault in the braking system or a loose connection in the chassis. For safety reasons, the owner should promptly take the vehicle to a 4S shop for inspection.

[ArthurLee]

I've been driving for over a decade and have encountered this issue of the brakes making a clunking sound at high speeds several times. It's always quite alarming. Usually, it's caused by warped brake rotors—when the rotor surface isn't smooth, braking at high speed causes the rotor to shake and collide, producing the noise. It could also be due to severely worn brake pads or a small stone stuck in them, leading to uneven friction. Another possibility is a problem with the suspension system, such as aged suspension bushings that can't provide stable support at high speeds, causing the wheels to shake and make noise when braking. If the ABS system triggers abnormally, it might also produce a clunking sound, though this typically wouldn't occur only at high speeds. It's best not to ignore it—get to a professional shop immediately to check the condition of the brake rotors and pads. Safe driving is the top priority; replacing a set of brake pads only costs a few hundred bucks, but avoiding an accident is what matters most.