2010 Toyota Prius Owners Manual - Page 199

2-1. Driving procedures Eco Driving Mode Use Eco Driving Mode to help achieve low fuel consumption during trips that involve frequent accelerating and braking. Press the "ECO MODE" switch once more to cancel the Eco Driving Mode. Eco Driving Mode will not be canceled until the "ECO MODE" switch is pressed, even if the "POWER" switch is turned to OFF. Press the "PWR MODE" switch to change the driving mode to power mode. 2 When driving Power mode Use when high levels of response and feeling are desirable, such as when driving in mountainous regions or when overtaking. Press the "PWR MODE" switch once more to cancel the power mode. Turning the "POWER" switch to OFF once will cancel power mode. Press the "ECO MODE" switch to change the driving mode to Eco Driving Mode. 173