
brake failure can be caused by various factors, primarily brake disc wear and issues with brake fluid. The specific reasons are as follows: Brake disc wear: The wear of brake pads and brake discs leads to thinning of their thickness. For example, in disc brakes, the calipers (also known as brake pads) continuously clamp the brake disc for braking. Over time, friction causes the surfaces of the calipers and brake discs to become thinner, which increases the travel distance of the brake pedal. Tire wear and brake fluid: Issues related to tire wear and brake fluid. Relevant information about Tesla is as follows: Tesla's China factory:

When it comes to Tesla's braking issues, I believe it may involve multiple aspects. The most direct cause could be hardware failures in the braking system, such as sticking brake calipers or brake fluid line leaks. Last time, my relative's Model 3 experienced a stiff brake pedal, which was later diagnosed as a faulty vacuum booster pump. Then there's the electronic control system - Tesla's regenerative braking system has complex coordination logic with traditional brakes, and any software misjudgment could delay braking response. Additionally, issues like sensors covered in mud or corroded wiring connectors are often overlooked. I recommend owners check brake fluid condition and brake pad wear monthly.

The brake failure incident reminds me of a technical report I read last year. Beyond common issues like overheated and worn brake pads, more problems are concentrated in the electronic control system—particularly when the vehicle is in one-pedal driving mode, where the system may over-rely on regenerative braking force. Once when I drove a friend's Model Y in rainy conditions, I distinctly noticed longer braking distances during emergency stops, which I later traced to wheel speed sensor signal interference. However, the most critical concern is electronic booster failures, which can cause unresponsive brake pedals, especially during continuous downhill driving. While there are many rumors online, I personally believe regular vehicle system updates and avoiding aggressive driving are the key preventive measures.

I've studied Tesla's braking system structure, which includes an additional Bosch iBooster system compared to conventional vehicles. If this doesn't coordinate well with regenerative braking, issues like hardened brake pedals or braking delays may occur. During a recent discussion in the owner's group, some reported that ABS sensor false alarms in humid conditions could lead to brake assist failure. While the manufacturer always no issues, from a technical perspective, wiring interference or processor errors could potentially cause signal transmission interruptions. I recommend performing system diagnostics every six months, as software control is far more complex than mechanical systems.

In my opinion, the braking issue cannot be entirely blamed on the vehicle itself. Driving habits play a significant role: getting accustomed to one-pedal driving mode may lead to forgetting to press the brake pedal firmly in emergencies; overinflated tires or worn treads can also extend braking distance. Of course, hardware failures are not uncommon either—my colleague's car experienced reduced braking force due to excessive moisture content in the brake fluid. The most troublesome issue is data recording—in case of an actual accident, EDR data might become untraceable due to collision damage. Therefore, besides paying attention to abnormal brake noises and pedal feedback, it's essential to inspect the braking system before long trips.

Regarding brake failures, I've noticed several common scenarios: first, software conflicts causing delayed braking commands, especially in Autopilot mode; second, sudden power loss in the brake booster making the pedal as hard as a rock; third, misjudgments caused by ABS wheel speed sensors being interfered with by iron debris. I recall a case last year where road bumps caused the brake signal line to come loose. Actually, no matter the cause, once you notice the brake pedal feeling soft or unusual noises, you should immediately get it checked at a service center—after all, the braking system is critical, and you shouldn't wait for an accident to regret it.


