July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

M/T models

The ECO mode switch is installed to the instrument lower panel LH.

Courtesy of NISSAN NORTH AMERICA, INC.
When the ECO mode indicator on the combination meter is OFF and the ECO mode switch is pressed, the ECO mode is active and the ECO mode indicator is ON.
When the ECO mode indicator on the combination meter is ON and the ECO mode switch is pressed, the ECO mode is cancelled and the ECO mode indicator is OFF.