The engine warning light comes in two colors: yellow and red. Yellow indicates a warning, while red signifies a prohibition. When the yellow warning light is on, it means some system parameters in the vehicle may have exceeded the set range. The vehicle can still be driven at this time, but certain functions may be limited. When the red warning light is on, the vehicle must be stopped immediately, the engine turned off, and driving discontinued. The issue must then be checked. Common reasons for the engine warning light to come on include: sensor failure, oil quality issues, poor fuel mixture combustion, turbocharging problems, intake issues, exhaust problems, or anti-theft system malfunctions. If the engine warning light comes on, follow these steps: First, check if the engine is running normally. Look for issues like shaking, black smoke, or difficulty starting. If any of these are present, avoid restarting the engine. Note: If the red light is on, do not restart the engine under any circumstances. If the engine is running normally and the vehicle can be driven, proceed to a service center as soon as possible to diagnose the issue. The service center can easily read the fault codes using a portable diagnostic tool to identify and fix the problem. If the engine is running normally, the owner can also try gently reconnecting various wiring harness connectors, as a loose connection might be the cause. Alternatively, turning the key repeatedly to the ON position may reset the light.
