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Discussion Starter · #1 ·
Has anyone had any issues with the regenerative braking - one pedal driving, where the regen is not high as it used to be? I could easy get 50kw regen with normal driving, and like 70kw regen with the paddle. Now I鈥檓 lucky to get 30kw with or without the paddle. I have tried to reboot the boot and still no improvement. Any thoughts before I take it to the dealer?
 

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12/16 build, 2017, white LT
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SOC > 90% will limit regen.

Interestingly, when we picked up our Bolt last week, with the new battery at 100% SoC, the regen seems very strong. I don't recall it ever being that good at 100% with the old battery....or maybe it was just compared to the Hyundai ICE, with no regen.
 

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Discussion Starter · #5 ·
I've noticed that the region varies, and it is not only because the battery is fully charged. Maybe it varies on purpose so you don't forget how to use the brakes :ROFLMAO:
I have not touched my brakes other than holding at a red light. Today I have used them more than I have owned the car. Something definitely changed.
 

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Has anyone had any issues with the regenerative braking - one pedal driving, where the regen is not high as it used to be? I could easy get 50kw regen with normal driving, and like 70kw regen with the paddle. Now I鈥檓 lucky to get 30kw with or without the paddle. I have tried to reboot the boot and still no improvement. Any thoughts before I take it to the dealer?
I don't want to insult you, but I have to ask - you do have 1-pedal enabled, right? I believe it's sticky between power cycles, but I'm not sure since I don't use it. You do get some regen when you remove your foot from the accelerator even with 1-pedal turned off. I know, because that's how I drive, never using 1-pedal. Going back-and-forth between an ICE and my EUV forces me to make them as similar as possible so I don't make a horrible mistake.
 

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The actual regen is also regulated by the speed. Going 70+ on the freeway, take the foot off the pedal and not much slowing is happening. Take it off at 25 mph and it鈥檚 very noticeably slowing quickly. Actual regen in kW is probably the same either way.

I questioned why years ago before I noticed that I was just driving faster, and I would overshoot an upcoming stop sigh when taking the foot off at the exact same point before the stop. I just grab the regen paddle and feather some brakes when I overshoot now.
 

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Only slightly OT, but as when driving a loaded truck, I've learned to take the passenger and cargo load into account when using regenerative braking. Adding weight increases one-pedal stopping distances.

jack vines
 

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2022 EV 2LT Black
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I don't want to insult you, but I have to ask - you do have 1-pedal enabled, right? I believe it's sticky between power cycles, but I'm not sure since I don't use it. You do get some regen when you remove your foot from the accelerator even with 1-pedal turned off. I know, because that's how I drive, never using 1-pedal. Going back-and-forth between an ICE and my EUV forces me to make them as similar as possible so I don't make a horrible mistake.
It is sticky on 2022 Models. 2021 and older you have to re-enable 1 pedal at every start.
 

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2022 Bolt EUV Premier, No Options
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We don't know what model year Bolt the OP has.
  • Is is a 2022 or 2023?
  • If so, is it an EV or EUV?
  • Also, is this the OP's 2nd or 3rd Bolt, or their first?
  • If it's a 2017 - 2021 Bolt, does it have the new battery?
  • How long has the OP been driving the car?
So many unanswered questions.
 

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2022 Bolt EUV Premier: sold back to GM Jan 鈥23
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2,840 Posts
I have not touched my brakes other than holding at a red light. Today I have used them more than I have owned the car. Something definitely changed.
No changes in my EUV. GM doesn't do OTA software updates, so unless you've had the car into a dealer for something I can't see how something like this can change. Of course, an equipment failure somewhere in the car's system might impact this. Assuming you aren't seeing any warning lights, I'd drive it a bit more and see if it continues or clears up. If it continues, then a dealer should probably scan the system for any registered faults.
 

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Discussion Starter · #12 ·
I don't want to insult you, but I have to ask - you do have 1-pedal enabled, right? I believe it's sticky between power cycles, but I'm not sure since I don't use it. You do get some regen when you remove your foot from the accelerator even with 1-pedal turned off. I know, because that's how I drive, never using 1-pedal. Going back-and-forth between an ICE and my EUV forces me to make them as similar as possible so I don't make a horrible mistake.
Yes I have one pedal on, and don鈥檛 drive with out it. The regen use to be really aggressive which I liked. Today it barely wants to slow down or regen anything. My EUV is just cursed.
 

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Volt, Polestar 2, R1T, Livewire One
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Interestingly, when we picked up our Bolt last week, with the new battery at 100% SoC, the regen seems very strong. I don't recall it ever being that good at 100% with the old battery....or maybe it was just compared to the Hyundai ICE, with no regen.
It's a slightly different chemistry, so the available regen is different as well. But, the car limits regen based off the voltage of the highest voltage cell to prevent damage. A worn cell will jump in voltage quicker/higher than new ones when a charge is applied to them.
 

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Discussion Starter · #14 ·
We don't know what model year Bolt the OP has.
  • Is is a 2022 or 2023?
  • If so, is it an EV or EUV?
  • Also, is this the OP's 2nd or 3rd Bolt, or their first?
  • If it's a 2017 - 2021 Bolt, does it have the new battery?
  • How long has the OP been driving the car?
So many unanswered questions.
New 2022 - only 5k - EUV - second EV, since June.
Driving it this morning, it鈥檚 working as normal. Back to normal aggressive regen. Spoke to dealer, they said something my have 鈥渂een seized?鈥 They want me to bring it in for inspection of the unit. Also yes it鈥檚 the new battery.
 
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