[Whitelighting1!]

Our Bolt has 31,000 miles on it. Recently we have noticed there is not as much "grab" (car slowing) when coming to a stop while in L. We have had to use the paddle/brakes in situations where we never had to use them before because the car is not slowing down at the same rate as it did 3 months ago. Is anyone else having similar issues? Is it possible the car's ability to use the regenerate mode diminishes as more mileage is put on? Could this be the outcome of long distance (60 miles each day) commute on interstates with flat elevation?

 

[Vertiformed]

Our Bolt has 31,000 miles on it. Recently we have noticed there is not as much "grab" (car slowing) when coming to a stop while in L. We have had to use the paddle/brakes in situations where we never had to use them before because the car is not slowing down at the same rate as it did 3 months ago. Is anyone else having similar issues? Is it possible the car's ability to use the regenerate mode diminishes as more mileage is put on? Could this be the outcome of long distance (60 miles each day) commute on interstates with flat elevation?

More likely it's an effect of cold, as the battery can't accept as much charge when cold. How cold is it where you are?

 

[Dimitrij]

Our Bolt has 31,000 miles on it. Recently we have noticed there is not as much "grab" (car slowing) when coming to a stop while in L. We have had to use the paddle/brakes in situations where we never had to use them before because the car is not slowing down at the same rate as it did 3 months ago. Is anyone else having similar issues? Is it possible the car's ability to use the regenerate mode diminishes as more mileage is put on? Could this be the outcome of long distance (60 miles each day) commute on interstates with flat elevation?

If this doesn't go away with warmer weather, I'd consult with the dealership. If it's a warranty repair issue, let uncle GM figure this out for you.

 

[Whitelighting1!]

We live in Phoenix,AZ

 

[drdiesel1]

We live in Phoenix,AZ

How much charge is in the battery when this happens ?
Are you sure you're apples to apples ?

 

[dbostrom]

"We have had to use the paddle/brakes in situations..."

The paddle invokes regeneration so if you're using the paddle as an alternative to L regen, that's a little puzzling.

 

[wesley]

Bolt's regenerative force can be gauged by looking at the amount of power that's collected, as shown in the right-hand side of the dashboard display. Full amount of regenerative braking will show about 50 to 60kW unless the car is moving slowly, and I've seen it go up to about 70kW with the paddle. If, say, the paddle's regen goes as high as I described, but not so much for the L mode's maximum braking, then it might be that something's wrong with the L mode operation.

If for some reason the regenerative braking becomes limited, the battery icon below the gauge will turn grey, and the limit will be shown as a white line on the gauge itself. This will usually happen if the battery is nearly full (>95%), or too cold(<0C/32F). This limitation will affect both L mode and the paddle equally, so it might not be the culprit, but who knows.

 

[One1whaoo.]

Or, experiment with hilltop reserve, to avoid charging to 100% where the battery cannot take any more juice.
Unable to regenerate because 100% charged can feel a lot like the brakes are failing.

 

[EVBOLT19]

Our Bolt has 31,000 miles on it. Recently we have noticed there is not as much "grab" (car slowing) when coming to a stop while in L. We have had to use the paddle/brakes in situations where we never had to use them before because the car is not slowing down at the same rate as it did 3 months ago. Is anyone else having similar issues? Is it possible the car's ability to use the regenerate mode diminishes as more mileage is put on? Could this be the outcome of long distance (60 miles each day) commute on interstates with flat elevation?

Did you ever get this resolved? I'm posting this same question in a different thread where someone kinda had the same problem as mine, but what you described is exactly what's happening to me. Not crazy with the idea to have the dealer tear into my car if it's a massive repair but it's still under warranty.

 

[NewsCoulomb]

130,000 miles here, and I saw 70 kW of regen braking just the other day.

 

[ButchAZ]

"We have had to use the paddle/brakes in situations..."

The paddle invokes regeneration so if you're using the paddle as an alternative to L regen, that's a little puzzling.

I use the paddle in L mode all the time. Sometimes you need to stop a little faster than just taking your foot off the accelerator (it's still hard not to call it the "gas pedal"). Use it every single day.

 

[EVBOLT19]

Took my car in for an alignment and had them look at my regen issue. They claim there is nothing wrong, which is disappointing since I still cannot get more than 30-40kW of regen in L, and the paddle basically does nothing now when pressed. On a flat road traveling at 45mph ill only get about 10-16kW of regen. I never charge more than 75% and it was in the 50s when I took it in. I might have to try a different dealer and ask to go on a drive along when Covid is better, hopeful next summer.

 

[shrox]

Took my car in for an alignment and had them look at my regen issue. They claim there is nothing wrong, which is disappointing since I still cannot get more than 30-40kW of regen in L, and the paddle basically does nothing now when pressed. On a flat road traveling at 45mph ill only get about 10-16kW of regen. I never charge more than 75% and it was in the 50s when I took it in. I might have to try a different dealer and ask to go on a drive along when Covid is better, hopeful next summer.

Once you find a good dealer, stick with them.

 

[Sean Nelson]

They claim there is nothing wrong, which is disappointing since I still cannot get more than 30-40kW of regen in L...

You'll never see the full amount of regen unless you're traveling pretty fast, and preferably downhill. I had to go downhill at 100km/h with the paddle in order to get the full 70kW of regen showing on the DIC. At slower speeds and on level ground you just don't need that much power to slow down.

 

[GJETSON]

You'll never see the full amount of regen unless you're traveling pretty fast, and preferably downhill. I had to go downhill at 100km/h with the paddle in order to get the full 70kW of regen showing on the DIC. At slower speeds and on level ground you just don't need that much power to slow down.

Yes. If you could get 70 kw of regen, for more than a moment, while going 45 mph on the level, you would have a perpetual motion machine. The regen comes from converting kinetic energy to electrical energy.

Speed vs. energy efficiency

Does anyone have information on the relative energy efficiency of the Bolt at various speeds? What I'm trying to track down is the projected number of miles travelled per KwH of energy used at various speeds. For instance, I found on my 2013 Leaf that at 67 mph my Leaf gets about 4.4 miles of...

www.chevybolt.org