You can get the Mav to go to Eco mode every time you want for much less than $90...
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Kind of like down shifting a 4 speed in the old days.I usually run in both ECO mode (two quick clicks on the left-mode button), and also put the truck in "L" for our AWD Hybrid. L mode always give you a 100% braking score if you let it do most of the stopping, but unlike a true one-pedal mode, there's no associated rear brake lights. The truck will decelerate pretty quickly with no warning given to whoever is behind you, so use with caution.