Car completely died on me about an hour ago.

[Mach-Lee]

Update: car started with jumpgot a message in the ford pass app that says,"High voltage battery warning, "the powertrain control system has detected that the system power supply voltage is lower than desired" is this a bigger issue or was it just the 12v?

Well, you had a zillion low voltage codes, but the good news is no HVBJB codes. The HV warning was probably just because of all the low voltage stuff happening. If you start the car again and there are no error messages (other than the ABS/park brake) then I think everything will be fine now.

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[Sir Barton]

High Voltage Battery Junction Box.

Thanks.

 

[MonorailGrey]

2021 premium AWD SR

Interesting...I also have a 21 premium AWD SR and I also had a low 12V warning yesterday morning Eastern Time. I received a "Plug in to maintain 12V Battery" warning, then an "Electrical System Drain Service Required" warning. A little while after receiving the messages, I went to plug in the car. Upon opening the charge door, the ring that's normally white/blue lit up all in red. I plugged in and the car charged to its normal target. A few hours later, I went to drive the car and saw the "Electrical System Drain Service Required" message on the instrument display. I hit OK to clear the message and drove like normal (though I brought a 12V jump pack with me just in case). I had no problem driving the car, it sat in a parking lot for two hours, and I had no problems driving home.

I've scheduled a service appointment, because I think my 12V should get tested.

Interesting to hear the same thing happened to you yesterday too. Maybe a software update was pushed and it drained our 12V batteries because they weren't plugged in?

 

[Shadymouse]

Interesting...I also have a 21 premium AWD SR and I also had a low 12V warning yesterday morning Eastern Time. I received a "Plug in to maintain 12V Battery" warning, then an "Electrical System Drain Service Required" warning. A little while after receiving the messages, I went to plug in the car. Upon opening the charge door, the ring that's normally white/blue lit up all in red. I plugged in and the car charged to its normal target. A few hours later, I went to drive the car and saw the "Electrical System Drain Service Required" message on the instrument display. I hit OK to clear the message and drove like normal (though I brought a 12V jump pack with me just in case). I had no problem driving the car, it sat in a parking lot for two hours, and I had no problems driving home.

I've scheduled a service appointment, because I think my 12V should get tested.

Interesting to hear the same thing happened to you yesterday too. Maybe a software update was pushed and it drained our 12V batteries because they weren't plugged in?

Did you receive any OTA updates in the past few days?

 

[MonorailGrey]

Did you receive any OTA updates in the past few days?

Not that I'm aware of, but they've pushed things out in the past without a notification. A few months ago, my parking brake suddenly started automatically applying when I shift to Park - I received no software update notification when that started.

 

[jgcom]

Yeah I took the car to Ford for the parking brake and they said they would call back in two days when the parts came in and they never did ...

My dealer had done exactly this to me, twice, for recall-related matters. I think we are expected to call them every week or two, explaining the whole story to whoever answers the phone, over and over, until something changes. I'm looking for a new dealer. It is not clear how much you have to pay for a new car to avoid this treatment.

 

[BMT1071]

My dealer had done exactly this to me, twice, for recall-related matters. I think we are expected to call them every week or two, explaining the whole story to whoever answers the phone, over and over, until something changes. I'm looking for a new dealer. It is not clear how much you have to pay for a new car to avoid this treatment.

It's more of a brand thing than exactly how much you pay. Generally speaking you will receive much better service from a luxury car dealership.

 

[Silver Surfer]

Interesting...I also have a 21 premium AWD SR and I also had a low 12V warning yesterday morning Eastern Time. I received a "Plug in to maintain 12V Battery" warning, then an "Electrical System Drain Service Required" warning. A little while after receiving the messages, I went to plug in the car. Upon opening the charge door, the ring that's normally white/blue lit up all in red. I plugged in and the car charged to its normal target. A few hours later, I went to drive the car and saw the "Electrical System Drain Service Required" message on the instrument display. I hit OK to clear the message and drove like normal (though I brought a 12V jump pack with me just in case). I had no problem driving the car, it sat in a parking lot for two hours, and I had no problems driving home.

I've scheduled a service appointment, because I think my 12V should get tested.

Interesting to hear the same thing happened to you yesterday too. Maybe a software update was pushed and it drained our 12V batteries because they weren't plugged in?

When I initially started the car last night I thought I interrupted an update, the brake lights were flickering, and I was getting that thumping noise repeatedly along with a message on the screen that said shutting down to save battery. Car is on version 6.1.1 btw

 

[Silver Surfer]

My dealer had done exactly this to me, twice, for recall-related matters. I think we are expected to call them every week or two, explaining the whole story to whoever answers the phone, over and over, until something changes. I'm looking for a new dealer. It is not clear how much you have to pay for a new car to avoid this treatment.

That's exactly why I didn't bother even calling because the run around they give you. They did it to me with the glass recall and when my doors wouldn't open, which still happens often, the jump I got earlier actually fixed my driver door not opening when I walk up and press the button, but my windows were doing stupid shit while I was driving.

 

[Kamuelaflyer]

That's exactly why I didn't bother even calling because the run around they give you. They did it to me with the glass recall and when my doors wouldn't open, which still happens often, the jump I got earlier actually fixed my driver door not opening when I walk up and press the button, but my windows were doing stupid shit while I was driving.

Find a new dealer if it’s at all possible.

 

[VaderMachE]

That's a new issue, never heard of that issue. At least, that never happens on mine ( SR 2021 Premium)

Yep, it's a thing. There's a thread or two on here about it.

 

[AllenXS]

At the risk of sounding dumb again, please remind me with HVBJB stands for? Thanks.

Having victory beer, just beer

 

[Cybersonic]

About 2 months ago I arrived at work on a 74% battery and when I tried to leave for lunch the 12v battery had died and the same issues OP described. Jumped off my Mach E with my work vehicle and took it to my local dealer. However it was about four days before I could take it to that dealer and by time I did, any error codes that were present on the dash went away. Unfortunately the same issue happened again two weeks later, but this time I was able to bring it to the dealer same day. They told me the culprit was a faulty light switch and replaced it. Since then I haven't had any issues with my 12v battery. I charge my vehicle every night on a L1 source and then once a week at work I use a L2. Also at the time of the issues, my tires were all properly inflated.

I've had my MME GT for a little over a year now and in that time I've driven 27k miles. Little to no issues until that 12v battery issue.

 

[Starscrean]

Wow….. could the screen be damaged somehow undetected by the naked eye? Any other issues with the screen?

lol how can a damaged screen cause a mode to be undriveable and obviously feel the performance change. Not damaged screen.

 

[RandyMache]

seriously, I'm not going to explain it as I'm not an screen repair technician. Besides, an explanation won't solve your problem. I wish you luck.

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