Hight Voltage Battery overheating during charging on L2 after OTA

[Matstar]

Are the owners who have shared that they are experiencing this issue currently members of the Ford Early Access program? (seems unlikely?)

I’m not EA member. As a Canadian the program is not accessible

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[Blue highway]

They know and are working on it. But it could take a couple months. I'd suggest trying to find a workaround in the meantime. Sounds like it maybe isn't an issue if you use a 40+ amp EVSE?

couple of months? Can the code be reverted with FDRS?

 

[kronstein]

They know and are working on it. But it could take a couple months. I'd suggest trying to find a workaround in the meantime. Sounds like it maybe isn't an issue if you use a 40+ amp EVSE?

I can’t use a 40A EVSE it’s simply not an option where I live, my only option is either L1 or low power L2 (16A)
Being unable to charge the vehicle at home is a pain, especially because it was charging fine before the OTA. Technically Ford broke my vehicle remotely

 

[available_username2]

I don't think I have this, at least I haven't noticed slower charging at all. I have a job 1 extended range premium. I believe I got 6.2.1, 6.3.0, 6.4.0, 6.7.0, and I am on 6.8.0 currently. I had to get a new hvjb and made them do the recall update that I heard replaces 6.6.0. So if that is what's happened apparently the OTA is different than what the dealership did.

 

[helium89]

They know and are working on it. But it could take a couple months. I'd suggest trying to find a workaround in the meantime. Sounds like it maybe isn't an issue if you use a 40+ amp EVSE?

Do you know if they’ve stopped pushing whatever update is causing this? Should people without access to high amperage L2 chargers be turning off automatic updates for the time being?

 

[DevSecOps]

Do you know if they’ve stopped pushing whatever update is causing this? Should people without access to high amperage L2 chargers be turning off automatic updates for the time being?

That's what I was eluding to in this post: https://www.macheforum.com/site/thr...ng-charging-on-l2-after-ota.32486/post-729484

If you don't have ready access to DCFC or higher amperage L2 then you might want to turn off updates until they have resolved the issue. It appears to be a relatively low number of instances thus far, but that could change as more people get the power-up.

The update isn't worth being stranded without the ability to charge your vehicle.

 

[dtbaker61]

2021 Job 1 here. I've turned off auto updates. If the net loss charging bug hit me it would have a disasterous effect on my family. Thank you @Ford Motor Company .

I turned my auto-update off months ago as well.... I haven't seen any new features I would want. I got really tired of the side-effects and settings re-setting.

I am amazed that there is still no way to 'uninstall' a bad update and return to last stable build. Such a basic thing for good software release management.

The only thing I'd really like is the ability to turn off the 'driver alerts' and have them STAY off.


....this particular bug sounds very serious since it is basically killing the ability to use L2 charging at home if a huge amount of the charge energy is going to warm the battery before charging ?! I am hoping for all affected that there is a quick patch fix release OTA.... even if it is just going back to a previous version of code.

It would be nice to see an official response, and OTA, from @Ford Motor Company on this sooner rather than later!

 

[Schmedlack]

They know and are working on it. But it could take a couple months. I'd suggest trying to find a workaround in the meantime. Sounds like it maybe isn't an issue if you use a 40+ amp EVSE?

I have a 40A EVSE. The car will charges slowly, because it heats the battery to 90F. This wastes time and electricity. There are two workarounds I may try. First is to start charging after driving when the is battery warm. Second, charge from a very low to a high SOC so that the HVB only "warms up" once. If these don't help, at least they won't hurt anything.

 

[Quinion]

This is now happening to me in Florida with a 21 select. L1 charging is basically useless

 

[Schmedlack]

This is now happening to me in Florida with a 21 select. L1 charging is basically useless

The lady on the Ford 800 number wasn't savvy about our cars. I had better luck communicating with Ford by their text message setup. Do us all a favor and text them with what you are experiencing. This may or may not cause them to expedite a solution, but it can't hurt.

 

[Quinion]

The lady on the Ford 800 number wasn't savvy about our cars. I had better luck communicating with Ford by their text message setup. Do us all a favor and text them with what you are experiencing. This may or may not cause them to expedite a solution, but it can't hurt.

where do you find that number

 

[Schmedlack]

I found the number on the Ford Web site. The voice help line is 1 800 392 3673. The text message (Chat) man's name is David. His number is 734 892 0892 (SMS/MMS). I may call my servicing dealer tomorrow, but unless they have directions from Ford about the problem, it may be diffucult for them to proceed. They like to see a problem with their own eyes, or have a Diagnostic Trouble Code. We will see.

 

[kronstein]

For now I set the charge level to 80% when using my low power L2 EVSE, it seems that car can get to that level overnight from 69% SoC. Charging above 80% looks like a waste of electricity as car acts like a space heater.
Also charing the car right after you drove it has a better success rate for me while using low power L2 EVSE, but unfortunately timing doesn’t match with Pg&E “cheap” electricity tariff

 

[Schmedlack]

For now I set the charge level to 80% when using my low power L2 EVSE, it seems that car can get to that level overnight from 69% SoC. Charging above 80% looks like a waste of electricity as car acts like a space heater.
Also charing the car right after you drove it has a better success rate for me while using low power L2 EVSE, but unfortunately timing doesn’t match with Pg&E “cheap” electricity tariff

I'm with you on everything. We are in the same circumstances with the cheap power tariff.

An EV is supposed to be environmentally friendly, but here we are wasting electricity. Our house uses all LED lights, we have a high efficiency heat pump (now set at 62F) and a bunch of Energy Star appliances. But, but, but - my Mach E is charging in the garage wasting expensive power which does nothing.

Complaining here is like giving a guy on TV the finger. Contact Ford and tell them just what you told me.

 

[Timelessblur]

I turned my auto-update off months ago as well.... I haven't seen any new features I would want. I got really tired of the side-effects and settings re-setting.

I am amazed that there is still no way to 'uninstall' a bad update and return to last stable build. Such a basic thing for good software release management.

The only thing I'd really like is the ability to turn off the 'driver alerts' and have them STAY off.


....this particular bug sounds very serious since it is basically killing the ability to use L2 charging at home if a huge amount of the charge energy is going to warm the battery before charging ?! I am hoping for all affected that there is a quick patch fix release OTA.... even if it is just going back to a previous version of code.

It would be nice to see an official response, and OTA, from @Ford Motor Company on this sooner rather than later!

rolling back a software update is often times close to impossible depending on the changes. You have database changes that can not always be rolled back or other minor change that again can not be rolled back.
A roll back would more take another software updating removing the changes and handling any new migration.

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