What does the yellow engine light on the dashboard mean?

[GrahamLee]

The yellow engine light on the dashboard indicates an engine malfunction. There are two scenarios when this light illuminates: 1. When the vehicle's power is turned on, the system performs a self-check. During this process, not only the engine yellow light but also other warning lights will illuminate simultaneously and then turn off together, which is a normal phenomenon; 2. If the engine malfunction yellow light remains illuminated after the vehicle is started, it means the ECU is alerting the owner that there is an engine malfunction, which is an abnormal condition. When the engine warning light on the dashboard is on, it cannot be manually reset. Typically, the issue needs to be diagnosed and resolved at a 4S shop using specialized fault detection equipment before the light can be turned off.