What does it mean when a car displays 'Check ESP'?

[DeAlyssa]

When a car displays 'Check ESP', it indicates a malfunction in the ESP system. The recommended approach is to reduce driving speed and avoid excessive steering or turning. The working principle of ESP is: based on sensor signals to determine the driving state, the control unit calculates and performs precise control. When rotation, understeer, or oversteer occurs, it individually controls each wheel to enhance vehicle stability. The functions of ESP are: 1. Precisely controlling the braking process of one or more wheels, distributing the braking force applied to each wheel; 2. The EPS system automatically adjusts the engine's output torque to control the vehicle's speed; 3. Forcing the car to generate a rotational torque around its center of mass, replacing the driver in adjusting the vehicle's direction.