Stop Driving Immediately: high voltage battery and power train warning

[Blaster]

Just got the notification the morning after update PU0306-BCF-DET. FordPass has a high voltage battery and power train warning.

Dealership had me towed and in a Tundra in 2 hours, hats off to them. Said it could be +3 weeks but will take a look at it next week to see exactly what's up.

Not happy but also satisfied with the response and experience so far considering the other experiences seen on the forum.

Will provide updates as they occur, until then you'll see me at the pump!

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[TaxmanHog]

watching

 

[Blaster]

Thanks for updating the title, that seemed aggressive after posting

 

[Ford Motor Company]

Just got the notification the morning after update PU0306-BCF-DET. FordPass has a high voltage battery and power train warning.

Dealership had me towed and in a Tundra in 2 hours, hats off to them. Said it could be +3 weeks but will take a look at it next week to see exactly what's up.

Not happy but also satisfied with the response and experience so far considering the other experiences seen on the forum.

Will provide updates as they occur, until then you'll see me at the pump!

Hey there. Could you please send over a private message with your VIN and the name/location of the Ford dealership you are working with? I would like to take a closer look at these error messages on my end!

 

[davehu]

Always nice to know that FMC is watching this forum and responding to serious reliability issues.

 

[irpete]

I got the same errors yesterday. It was on my Ford charge station pro charging overnight and I noticed I had a charge fault warning in the morning. Those errors came up afterwards while driving. I only had 20% power available while driving.

When I got home I logged in with FDRS and printed all the errors as well as battery module information before clearing the codes. Once the codes were cleared everything was back to normal.

I’ll reach out to the battery team for guidance but it’s my only vehicle right now and I can’t let it just sit at a dealership for weeks.

 

[Mike G]

10 to 1 it's being caused by the network interruption that happens during module updates.

I get the same thing sometimes when I update either my Lightning or the Mach-E using FDRS (to include FordPass warnings as well).

But the difference is I can clear the errors using FDRS by running a self test on the modules involved.

People who get this with OTAs would probably have to shut the vehicle off and let it sit for about 15 minutes and then start back up to see if the DTC goes away.

Let us know how it all turns out though. I've kinda gotten used to this, but I'm sure it freaks out folks who haven't seen it before.

 

[Blaster]

I hope it is that simple, and maybe it is. First error at the top of the morning, same error when I tried again 2 hours later, final error 30 minutes later. I had a window during work to troubleshoot and went for it. Thanks for sharing your experience, I prefer your outcome.

 

[ChrisCon]

I’ve been getting this after the 306 update . Lots of other random issues after 306 as well like the truck randomly displays 24 hour time sometimes and the sync stack is now rebooting randomly while driving.

 

[Mike G]

Well I prefer 24hr time myself and have both my car and truck Sync set to that..but it doesn't always display that way. Selecting the time display softswitch to 12hr and then back to 24hr always wakes it up and makes it display properly again. I'm told that Ford is aware of this issue and has a future fix (OTA). And it will likely be a future APIM update I'm guessing.

That 12V battery drain on the other hand...wow. You think your LVB is finally wearing out?

Have you tried resetting the BMS learned values dance?

 

[Ford Motor Company]

I’ve been getting this after the 306 update . Lots of other random issues after 306 as well like the truck randomly displays 24 hour time sometimes and the sync stack is now rebooting randomly while driving.

Hey, Chris! I can take a closer look into your battery concerns if you'd like. Can you send us a direct message with your VIN and the dealership name/location? To send a private message, just click on our username and select "Start Conversation". I'd be happy to look into how I can assist you on my end.

 

[chl]

10 to 1 it's being caused by the network interruption that happens during module updates.

I get the same thing sometimes when I update either my Lightning or the Mach-E using FDRS (to include FordPass warnings as well).

But the difference is I can clear the errors using FDRS by running a self test on the modules involved.

People who get this with OTAs would probably have to shut the vehicle off and let it sit for about 15 minutes and then start back up to see if the DTC goes away.

Let us know how it all turns out though. I've kinda gotten used to this, but I'm sure it freaks out folks who haven't seen it before.

Just a few comments.

Seems there are still a few bugs in the system - shame on Ford.

What ever happened to thorough testing before releasing software to the users/public?
Especially important when one has potentially explosive Li batteries in the garage or behind the cab!!!

As we used to say back in the 1970's: To err is human, to really screw up you need a computer.
Vehicles now are essentially computers with a power train.

But we can't have something like the Boeing 737 Max crashes happen in an EV on the road or in one's garage due to bad software!
Or false alarms from our trucks.

2022 and 2023 Lightning owners/drivers are beta testing early adopters?
One might think Ford would have these things worked out after its experience with the Mach-e!

Twice as galling given the price gouging going on at some Ford dealerships.

Hope it all works out and Ford gets its act together!

 

[Adventureboy]

I’ve been getting this after the 306 update . Lots of other random issues after 306 as well like the truck randomly displays 24 hour time sometimes and the sync stack is now rebooting randomly while driving.

The "Electrical System Drain Service Required" message is a big annoyance. I've been getting this regularly and tracked it down to this: If I plug in my F150L outside of my charge setting window, I will almost always get this message after a few hours. Otherwise, I would never see it. It's like it knows it's plugged in and keeps things live burning the LVB up until it goes into this warning just waiting for the time to tick by so it can charge the HVB (and the LVB at the same time). A simple software change to the LVB charging scheme or the "wait to charge" scheme could fix this - Ford?

 

[ChrisCon]

The "Electrical System Drain Service Required" message is a big annoyance. I've been getting this regularly and tracked it down to this: If I plug in my F150L outside of my charge setting window, I will almost always get this message after a few hours. Otherwise, I would never see it. It's like it knows it's plugged in and keeps things live burning the LVB up until it goes into this warning just waiting for the time to tick by so it can charge the HVB (and the LVB at the same time). A simple software change to the LVB charging scheme or the "wait to charge" scheme could fix this - Ford?

So of interest here.. I've had my truck for over a year now.
I charge at home and I plug in when I get home at 6:00pm the latest. My truck is set to charge beginning at 11:00pm so it sits plugged in for 5 hours every single night before the charging starts. and I've only gotten this error once before. . I have nothing aftermarket hooked up.

 

[TaxmanHog]

Any other folks with issues occuring after the posting of this update?
https://www.f150lightningforum.com/forum/threads/priority-update-23-pu0306-bcf-det.15669

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