In the LE Eco Plus and Premium trims, just below the gear shifter is the Eco Mode button, which provides a driving experience that optimizes the Corolla LE Eco's fuel efficiency. The driver must manually select this option, and once selected, the car regulates the output of the gas pedal and softens the blow of acceleration to reduce fuel consumption.
Eco Mode essentially made me a better driver and offered a better experience for my passengers. Starts are smoother and less jerky, which was helpful in Seattle's start-and-stop downtown area.
Air conditioning also affects Eco Mode. Once enabled, the car will cool air from inside the car instead of outside the car, which requires more energy.
The LE Eco's 42 mpg fuel economy is the most fuel-efficient gasoline-only compact sedan with automatic transmission in the segment, according to Toyota.