What is the function of the ECON button in a car?

[OClaire]

ECON stands for the car's energy-saving mode switch, which can be used to turn the energy-saving mode on or off. Modern cars generally offer three driving modes to choose from: energy-saving mode, comfort mode, and sport mode. Below is information about these three modes: Energy-saving mode: When the car is in this mode, fuel consumption is relatively low. The throttle pedal sensitivity decreases, and the transmission shifts up more aggressively. Comfort mode: This mode can be considered a normal operating mode for the car. In this mode, the throttle pedal response is more sensitive than in energy-saving mode. Sport mode: This mode can be used during aggressive driving. When sport mode is activated, the throttle pedal response becomes very sensitive, and the transmission delays shifting. The transmission will only upshift when the engine speed reaches the redline. After switching to sport mode, the engine speed is maintained at around 3,000 RPM, providing better power response during acceleration. When the car enters ECON mode, it can achieve reduced fuel consumption and energy savings, but the car's power output will be weaker. ECON can be understood as an abbreviation for 'economy.' In most cases, it is recommended to keep ECON mode on. It should only be turned off when high torque output is needed (e.g., when climbing a hill) or when driving at very high speeds. Pressing the ECON button activates the low-carbon, eco-friendly driving mode. Subsequently, the ECU, engine, and transmission operate intelligently in the most fuel-efficient mode to execute the driver's intentions, achieving optimal fuel economy through quick upshifts and smooth acceleration. The air conditioning also operates in an energy-saving state. When the driver presses the accelerator pedal deeply, the ECON system effectively controls the opening and closing of the intake valves to ensure smooth engine operation and energy savings. Although the ECON mode is simple and effective, it may not work under certain conditions: When the vehicle speed exceeds 120 km/h, priority is given to speed, and the energy-saving mode automatically deactivates. This means that if the car exceeds the economical speed range (usually between 60-90 km/h), the ECON mode will not save fuel. The key to the ECON mode is that it operates independently via the car's computer while driving to be effective. Therefore, it does not work during idle parking or when the car is in N, P, or manual mode. When overcoming significant resistance or requiring high torque output (e.g., when climbing a hill), the ECU prioritizes ensuring sufficient power to drive the car, and the ECON mode will not function in such cases.