What does it mean when the ECO light is on in the Buick Excelle?
2 Answers
When the ECO indicator light on the car is illuminated, it indicates that the vehicle's economy mode has been activated. ECO is an English abbreviation, derived from the combination of Ecology (environmental protection), Conservation (energy saving), and Optimization (power). The Eco mode is further divided into active Eco driving mode and non-active Eco driving mode. Eco mode is categorized into active and non-active types. The difference lies in the fact that the active type has its own dedicated button, allowing the driver to choose whether to enable it. When the driver presses the Eco mode switch, the dashboard indicator light will illuminate, and the vehicle will automatically begin adjusting settings such as throttle opening, transmission shift logic, and air conditioning output power. Non-active Eco mode does not have a dedicated button; when the dashboard Eco indicator light is on, it merely serves as a reminder function. The Eco system will automatically evaluate your driving behavior. If your current driving operation achieves the optimal fuel supply, the dashboard will simultaneously display the Eco indicator light. Most vehicles employ the active Eco driving mode, meaning they have their own switch button. Therefore, during daily driving, we can enable the Eco mode. Additionally, the Eco mode typically becomes ineffective under the following circumstances: When the vehicle speed exceeds 120 kilometers per hour, the car will prioritize speed, causing the Eco mode to automatically deactivate. When idling in park or in N/P gear, as well as in manual mode, the Eco mode may also become ineffective. When high torque output is required, such as when climbing a hill, the engine control unit will prioritize ensuring sufficient power to drive the vehicle, and the Eco mode will not function.
When the ECO light on the dashboard of my Buick Excelle illuminates, it means the vehicle's economy mode is activated, and the system is automatically helping me save fuel. This mode is particularly suitable for urban traffic congestion or stop-and-go driving scenarios, such as during rush hour commutes. The light may come on either manually via a switch or automatically triggered when the system detects steady driving. Once activated, the engine response becomes smoother, acceleration is less aggressive than usual, but fuel consumption indeed decreases. My actual test data shows a saving of 1-2 liters per 100 kilometers, making a noticeable difference to the wallet over time. Turning it off is simple—just press the button on the steering wheel to return to normal mode. I prefer keeping ECO on consistently as it also protects vehicle components like the transmission by reducing excessive wear. New drivers are advised to try it out to cultivate smooth driving habits, which also helps reduce exhaust emissions—eco-friendly and economical. In short, don’t be alarmed when the light comes on; it's a helpful assistant.
