[Bolticus]

Hello All,

Chevy replaced my battery and I got it back today. They charged the car to 100% and all seemed good. However, after going on a little trip I plugged into an L2 charger and tried to set a delayed charge. However, the car just wouldn't do it. It wanted to immediately charge no matter what I did. I tried rebooting the infotainment system which didn't do anything. I guess it has to go back to Chevy although everything else seems fine.

On the charge screen, does anyone know what the Start and Complete times mean in the upper right corner (see picture). I am trying to see if there are any hints on why the car wants to immediately charge.

Thanks!

 

[TinyMighty]

The start time indicates what time the car will begin to accept a charge. The complete time is the time the car estimates it will finish charging. The car usually delays it when you have it set up to only charge on off peak hours which you seem to have set up. It looks like the car wants to start at 9 pm but for some reason does not. My only guess is that it is something to do with the charger. Have you tried using a different charger to see if the issue is still happening?

 

[Jerry Duke]

Did you reset your Home location?

 

[Bolticus]

My only guess is that it is something to do with the charger. Have you tried using a different charger to see if the issue is still happening?

I haven't. I actually only have an L1 set up at home and don't know how to set it up where you tell the car I am not going to leave until next Monday, so skip Sunday . I was going to check tomorrow as the numbers should work. Can an L2 charger tell the car to charge immediately and disregard the departure time settings?

 

[Bolticus]

Did you reset your Home location?

I noticed a few settings had changed when I got the car back but to answer your question, I have not updated the Home location. But L2 charging has always respected my departure times, doing the slow green blink thing when not charging. No matter what I did on this charger, the car immediately started charging.

 

[Bolticus]

Never mind and thank you TinyMighty. Apparently, an L2 charger can say charge immediately, no matter what the settings are in the car. I had no idea. With my L1 set up at home, the car is now slow blinking delaying the charge. Whew.

The new battery is great.

I also got the service bulletin for the steering not returning to center: #17-NA-148, but alas, it did nothing and maybe made my issue a little worse. I am kind of use to it anyway.

Thank you for your help!

 

[Voldar]

Can an L2 charger tell the car to charge immediately and disregard the departure time settings?

The short answer is NO and YES (And it’s not only the L2. L1 does it too).

When you setup the delayed charging, you have to do it for all days of the week.
Let’s say you set it so that the car finishes charging at 7:30 a.m. each day of the week.
When you come home and plug the car, you’ll hear two chirps (delayed charging engaged).
But, if you plug the car, unplug it and plug it again, you’ll only hear one chirp (delayed charging disabled, the charge will start right away).
This is the behaviour on L1 or L2 regardless.

Now, about the numbers in your screen… I have no idea what they are for. Unless you also have played with the charging rates.

 

[Bolticus]

The short answer is NO and YES (And it’s not only the L2. L1 does it too).

Now, about the numbers in your screen… I have no idea what they are for. Unless you also have played with the charging rates.

I still am unsure of what those two top numbers mean but I did figure out what was going on with the L2 charger immediately charging the car. Replacing the propulsion battery also caused a number of settings to change on the car for some reason. Weird stuff, like turning on the headlights when you unlock the car for example was turned on. But one of the things that changed was a setting under charging as to whether you wanted the car to delay charging to achieve the schedule, or charge immediately... and that was set to charge immediately (I don't remember the exact verbiage on the screen but if interested I can go look. It is near where you set the charging schedule).

Anyway, that was the issue. It is an odd option. Who would want to schedule a leave time of say 7 AM and then tell the car, immediately start charging regardless. Not sure the point except for the car to tell you if you have enough time to fill the car before your 7 AM leave time.

Bottom line, mystery solved. Thanks for the reply though. I'll have to try the unplug and replug in thing to get the car to immediately start charging. That's a cool feature.

 

[Voldar]

Who would want to schedule a leave time of say 7 AM and then tell the car, immediately start charging regardless. Not sure the point except for the car to tell you if you have enough time to fill the car before your 7 AM leave time.

This is great when for exemple, you woke up Saturday in the morning and did the shopping runs. Then you decided to go at noon have lunch at a restaurant lets say 60 miles away from home. And you want to add some juice in the battery. Then, plugging it in-out-in is the fastest way to force the immediat charge instead of modifying in the infotainment.

 

[Bolticus]

This is great when for exemple, you woke up Saturday in the morning and did the shopping runs. Then you decided to go at noon have lunch at a restaurant lets say 60 miles away from home. And you want to add some juice in the battery. Then, plugging it in-out-in is the fastest way to force the immediat charge instead of modifying in the infotainment.

I get the point of the plugging in an out option.

I don't get the point of having an option to be able to set a departure time for the car, but then say, always immediately start charging regardless what time it is. That is a somewhat buried option near where you set up the scheduling times. You have the option to always delay charging (which makes sense) or immediately start charging and finish charging however many hours before you actually need to leave. That option doesn't make a ton of sense to me... but that option was what was selected and was causing my problem. I hope that makes sense.

 

[Voldar]

I don't get the point of having an option to be able to set a departure time for the car, but then say, always immediately start charging regardless what time it is.

I think it's for DCFC charging. But don't take me for granted, I don't know what option exactly you are talking about.

 

[Jerry Duke]

I thought when you plugged into DCFC, all Infotainment options were bypassed.

 

[Voldar]

I thought when you plugged into DCFC, all Infotainment options were bypassed.

Yes. But by what mechanism… I have no idea.

 

[Jerry Duke]

I would imagine the cars software would know when you plug in.

 

[Bolticus]

I think it's for DCFC charging. But don't take me for granted, I don't know what option exactly you are talking about.

Yeah, it is obscure and why I was baffled. On my 2017 Bolt, it is under Energy -> Charging -> Edit Rate Preference.

There are two selections. Earliest and Latest. If you choose Earliest, it will always begin charging immediately when you plug in, regardless of the your set departure time. This affects L1 and L2 charging. Earliest doesn't seem to have a lot of utility to me but there it is.

 

[Voldar]

I would imagine the cars software would know when you plug in.

Could be that at the moment there is DC coming through the CCS port, the delayed charge setting is bypassed.

 

[Voldar]

Yeah, it is obscure and why I was baffled. On my 2017 Bolt, it is under Energy -> Charging -> Edit Rate Preference.

There are two selections. Earliest and Latest. If you choose Earliest, it will always begin charging immediately when you plug in, regardless of the your set departure time. This affects L1 and L2 charging. Earliest doesn't seem to have a lot of utility to me but there it is.

I just looked it up in the manual. I never used it before.
See details in the Owner Manual (for Bolt 2019 is at page 135). I think I understand what it is doing (if you have the Off-Peak hours set, and you configured the Bolt to charge at the Off-Peak hours, then the charge will start as soon as the Off-peak hours start or later on, depending of how much is left to charge till your set SOC)
2019 Chevrolet Bolt EV Owner's Manual | Chevrolet Canada (gm.ca)