Posts: 6
Joined: Fri Sep 28, 2018 1:07 pm
Delivery Date: 28 Sep 2018

Regen while coasting

Hello, I just changed breaks on my 2018 Leaf. When I left the garage I noticed that Regen happens while coasting.

E-pedal is off, the car is in D mode. Can someone test this and confirm if some Regen is normal while coasting on a flat road? ( 3-4 blue bars)

I never noticed that before because I usually drive with e-pedal on but I thought there would be no Regen at all unless I touch the break pedal.

I want to make sure that the mechanic didn't mess up some sort of calibration...

Posts: 19789
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Regen while coasting

Welcome. Yes, a little Regen in D mode is normal - it's meant to simulate the drag of a typical automatic transmission's torque converter. It would be very nice to be able to turn it off, but you can't. There was a device available for the Gen I Leaf that could give you a 'coast' mode, but Gen II drivers have to make do with 'feathering' the accelerator pedal...
Brilliant Silver 2021 Leaf SV40 W/ Pro Pilot & Protection
2009 Vectrix VX-1 W/18 Leaf modules, & 2 lithium E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.
Forum Supporter
Posts: 575
Joined: Tue Jul 03, 2018 4:00 pm
Delivery Date: 03 Jul 2018
Leaf Number: 306556
Location: Vermont

Re: Regen while coasting

Gen II drivers have to make do with 'feathering' the accelerator pedal...
Or shift to Neutral while rolling down hill- the car will NOT go into reverse when rolling so just coast in neutral and shift back to drive when the car slows down. Abit more efficient than using regen because the motor is less than 100% efficient both driving and recharging.
2015 Leaf sold
2019 Leaf Plus S as of 9/30/19
Specialized Hardrock with Bafang midmount 750W
Liv Roam ebike
Stihl battery weedwacker and lawn mower
2023 Subaru Solterra Premium (the cheapest model)
Posts: 42
Joined: Tue Sep 21, 2021 12:41 pm
Delivery Date: 01 Jan 2014
Leaf Number: 333115

Re: Regen while coasting

Seconding dmacarthur, I have a mental map of the downhills I normally drive on.

1) Some require a bit of "gas" pedal pressure to overcome the natural regen in D mode. My goal is to keep the first regen bubble from lighting without lighting up a second acceleration bubble on the display.
2) Some are a bit steeper and the car will stay around the speed limit in D mode with my foot completely off the "gas" pedal.
3) Some are even a bit steeper and the car will maintain speed in B mode with my foot completely off the "gas" pedal.
4) On the other end of the spectrum, some very shallow down slopes are perfect for shifting into neutral without having the car accelerate above the speed limit.

My goal when driving the Leaf is to stay around the speed limit with the minimum use of either pedal. Of course, that's always been my goal in ICE cars as well. Probably why I don't win many stop-light races against the bros.

Return to “Website/Forum Discussions”