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How to Reset the Maintenance Warning Light on the Envision?

1 Answers

AndresAnn

07/29/25 10:16pm

The illumination of the engine warning light in the Buick Envision does not necessarily mean the engine is inoperable. It is normal for the engine warning light to be on before starting the engine. Here is some information about the warning light: Indication of a fault: If the light remains on after starting, it indicates a fault in the engine's electronic control system. A diagnostic scanner must be used to match the engine model for inspection, and repairs should be made based on the diagnostic results. Causes for the warning light to illuminate: Insufficient engine oil: When the engine oil level is low, the cylinders and piston rods cannot be properly lubricated, affecting normal operation and potentially triggering the engine knock warning light. In this case, the engine oil must be replenished immediately, and the oil and oil filter should be replaced every 5,000-8,000 kilometers. Engine overheating: Prolonged aggressive driving can cause the engine to overheat and over-rotate, leading to the engine knock warning light turning on. In this situation, the vehicle should be turned off and allowed to cool down until the engine returns to normal operating temperature. Engine misfire: A misfiring engine can prevent normal operation. This issue requires thorough inspection and repair at a service center or dealership. Severe carbon buildup: Excessive carbon deposits can block the fuel system, preventing proper combustion and triggering the engine knock warning light. Immediate carbon cleaning is necessary in this case. Low-quality fuel: Using fuel of poor quality or an incorrect type can disrupt normal engine operation. In such cases, high-quality fuel matching the vehicle's requirements should be used.

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