车辆制动失灵的原因有多种，如：刹车系统老化、制动液失效或制动液进水等等。一般在行驶中发生制动失灵时，驾驶员不可单靠拉手刹进行处理。因为手刹一般作用于后轴上，若拉得过猛，将会使制动盘“抱死”，很可能损坏传动机件并丧失制动能力，高速时还会导致汽车甩尾。 正确的 Vehicle braking failure for a variety of reasons, such as: brake system aging, brake fluid failure or brake fluid into the water and so on. In general, brake failure occurs when driving, the driver can not handle the brake alone. Because the handbrake generally acts on the rear axle, if pulled too hard, it will make the brake disk “lock”, it is likely to damage the transmission parts and loss of braking capacity, high speed will lead to the car drift. correct