How to deal with the sudden failure of the brake disc?
Jun 09,2025
If the brake disc really fails, we can use the engine's braking system by downshift to slow down the car.
The sudden failure of the brake disc on the road is a very serious safety accident, so how can we deal with it in time?The following Xiaobian will teach you a few methods:
Stabilize the direction and turn on the double flash: When the brake disc fails on the highway, the first thing you need to do is stabilize the direction, let the vehicle continue to glide, and turn on the double flash at the same time to prompt other vehicles next to you. First, use wind resistance and friction to slow down by yourself.The failure of the brake disc is also very likely to be caused by the short-term failure of components such as the brake fluid or the vacuum pump. If the distance is within a safe range, you can try to press the brake pedal at a high frequency to wake up the brake system.
Downshift with handbrake: If the brake disc really fails, we can use the engine's braking system by downshift to slow down the car.
Manual gear models: continuously and sequentially drop from the current gear to the second gear, then the speed will decrease, and then pull the handbrake to brake.Most of today's models are equipped with electronic handbrakes with dynamic emergency braking function.After hanging up the low-speed gear, you can directly try to pull the handbrake instead, and ESP will intervene and perform hydraulic braking on the 4 wheels, which is much safer than ordinary handbrakes.
Automatic transmission model: The hand and the automatic transmission are integrated, which can slowly lower the gear, or use the ground mode to reduce the speed.
Use the emergency avoidance lane: If the handbrake and downshift are not easy to use, the driver should honk loudly, mainly to remind the surrounding vehicles to pay attention to the lane and slow down in the appropriate section of the road.In many roads, emergency avoidance lanes will be set up on downhill or downhill sections, and there will be gravel and pools in the lanes to help the vehicle slow down. If the brake disc fails, you can stop through the emergency avoidance lane.
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