What is the reason for the BYD SVS light being on and the car not moving when shifting gears?

[SanAriel]

BYD SVS light being on and the car not moving when shifting gears indicates that the engine control unit has detected an error signal from a certain sensor or that it has exceeded the usage standard. When the ignition switch is turned on, the car's SVS indicator light will illuminate for an automatic check and will automatically turn off after a few seconds, which is a normal phenomenon; if it remains on, it indicates a fault in the car's electronic control system. The following is an introduction to the car's electronic control system: 1. Electronic Control Unit (ECU): The core of the control system, it is a microcomputer containing integrated circuits and other precise electronic components. 2. Sensors: Car sensors are placed in different locations of the car, and their main function is to provide the car control system with various operational condition information, such as engine speed, throttle opening, coolant temperature, etc. 3. Actuators: Devices that perform corresponding actions based on the electrical signals output by the electronic control unit.