Why does the brake suddenly become very hard to press in winter?

[JaxsonFitz]

In winter, the brake suddenly becomes very hard to press due to the ABS system using intermittent braking to prevent wheel lock-up or poor brake fluid flow. The specific reasons are as follows: 1. ABS system prevents wheel lock-up: Snow or ice often appears on the road in winter, reducing the friction between the wheels and the ground. Therefore, drivers are more likely to trigger the ABS anti-lock braking system when pressing the brake. When the ABS system is working, the vehicle's brake becomes hard to press, and there may also be a feeling of the brake pushing back. This situation is normal and not caused by a vehicle malfunction, so there is no need to worry too much. The ABS system uses intermittent braking to prevent wheel lock-up, significantly reducing the vehicle's braking distance. 2. Poor brake fluid flow: At low temperatures, the brake fluid flow becomes poor, which greatly increases the resistance of the brake fluid in the pipelines. As a result, the brake is much harder to press when starting a cold car. In this case, simply warm up the car for 10 minutes, and the brake will return to normal once the brake fluid reaches its working temperature.