Down for the count :(

[bswilson989]

After your phone is connected to the car for a while (30ish minutes max) it will no longer trigger the welcome lights. Additionally, I and many others have dashcams that run 24/7 off of the LVB. I monitor my voltage with a Vico power plus and I haven't once dropped below 12.3v ever.

Pretty sure the problem is not the car and Bluetooth.

Fair enough! Just a theory.
Personally my car is in the driveway juuuuust far enough away that it's frequently disconnecting/reconnecting every time I pass near the front door. I haven't had any LVB issues (yet), though.

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[ARK]

My pet theory is that a major cause of the 12v battery issues is the "wake" bluetooth functionality when you get near the car with your phone.

If you're constantly walking past the car on the other side of the wall in the garage and the lights are turning on and the car is temporarily waking up, is that burning juice each time?

Many of these 12v issues seem to occur when people are out and about though, sometimes even while driving, as opposed to the car failing to start the morning after in someone's driveway.

 

[DevSecOps]

For the people who are crazy concerned about this you could easily monitor the LVB for $45 - $150 with the following:

• Fuse Taps $14.95
• Either Vico Power Plus$100
  • Or Power Magic Pro $25.99
• Any 12v LED light $5

Connect the Vico or PMP to the fuses per the instructions and then connect the LED to the output. Configure your voltages and you'll be set. The LED light will draw minuscule amounts of power and if you get into the car and the light is off, don't drive it without checking the battery.

Basically, if the voltage drops below the preset level it'll cut the power to the LED, which would indicate that there's an issue with the LVB.

Or if you have a dash cam that's always on and you get into the car and it's off, same theory.

 

[Astraea]

I am deeply saddened that any of us need to worry about this and trying to come up with ideas to get ahead of it before it becomes a major problem like some of us are having. I kind of hate to say it, but I'm surprised this hasn't hit media yet with how much of a major safety problem this is. Some have been lucky that even though it is cold they had somewhere to wait for help that was warm. I just waited a full 21+ hours for a tow to bring it to the dealership, it never got above freezing yesterday until after sundown and today barely hit 25F, I could have froze to death waiting had I had no one to come get me or somewhere to keep warm. I love my car as much if not more than everyone else here but if this issue continues I'm not sure I want to keep it, when I'm scared to drive it for fear of getting stranded somewhere with no cell service, which is common up where I live... I hope this has a simple fix and is done quickly and they can provide the fix to anyone not already affected to prevent this disaster to everyone else.

 

[TruWrecks]

All of this sounds like a low 12V battery. If the 12V battery drops below 11.1 V DC the Mach-E will produce errors like nothing else. It will cry wolf, tell you the sky is falling and announce fire and brimstone is about to start spewing from the earth.

First step: Get the 12 V battery on a charget that can charge from 0V. If you cannot power up everything after a few minutes you may have a dead 12 V.

Step 2: If the 12 V battery is good and maintains 13.8 V to 14.4 V when the MME is on, then you might have a system error. Disconnecting the 12 V battery for 10 to 30 seconds then reconnecing it will usually clear the immediate errors.

Step 3: You could have a DTC error caused by a low 12 V battery. You can use a mobile app like Torque Pro (4.99 on Google Play) to clear the codes. Then you should be good.

Step 4: If all the above fails and you have power in the drive battery (HVB) then it is time to call the tow truck and panic.

 

[DevSecOps]

I am deeply saddened that any of us need to worry about this and trying to come up with ideas to get ahead of it before it becomes a major problem like some of us are having. I kind of hate to say it, but I'm surprised this hasn't hit media yet with how much of a major safety problem this is. Some have been lucky that even though it is cold they had somewhere to wait for help that was warm. I just waited a full 21+ hours for a tow to bring it to the dealership, it never got above freezing yesterday until after sundown and today barely hit 25F, I could have froze to death waiting had I had no one to come get me or somewhere to keep warm. I love my car as much if not more than everyone else here but if this issue continues I'm not sure I want to keep it, when I'm scared to drive it for fear of getting stranded somewhere with no cell service, which is common up where I live... I hope this has a simple fix and is done quickly and they can provide the fix to anyone not already affected to prevent this disaster to everyone else.

I think you're over exaggerating a bit in a general sense (not personally). This was an issue that was addressed via a recall and it did "hit the media". I haven't seen a single Job2 vehicle with this issue yet, that I can recall. We don't know how many people who suffer these problems with Job1 vehicles actually had the recall performed.

Additionally, 87% of MME owners say they would buy another (cited). That leaves 13% in the pissed off to "meh" category. If the LVB issues was that widespread and "feared" I don't think we would see these numbers.

It sucks you're going through this, but reliance on this forum which is full of hyperbole is not a basis for saying everyone is worrying about it. I'm surely not! That's like worrying about a pothole blowing a tire because you don't have a spare. If you worry about it all the time, you're doing more harm to yourself than it's worth.

 

[MachEZRt1]

So sorry to hear about this. With so many posts about the 12V I just ordered a Gooloo jumper and it’ll be going next to my tire inflator. Also will meticulously monitor the 12V and be using a battery tender initially and as needed.

Also added a 10mm battery wrench in case a negative terminal detachment is necessary.

 

[SnBGC]

I think you're over exaggerating a bit in a general sense (not personally). This was an issue that was addressed via a recall and it did "hit the media". I haven't seen a single Job2 vehicle with this issue yet, that I can recall. We don't know how many people who suffer these problems with Job1 vehicles actually had the recall performed.

Additionally, 87% of MME owners say they would buy another (cited). That leaves 13% in the pissed off to "meh" category. If the LVB issues was that widespread and "feared" I don't think we would see these numbers.

It sucks you're going through this, but reliance on this forum which is full of hyperbole is not a basis for saying everyone is worrying about it. I'm surely not! That's like worrying about a pothole blowing a tire because you don't have a spare. If you worry about it all the time, you're doing more harm to yourself than it's worth.

As an FYI...
@Astraea 's car is an early Job 1 vehicle and had this issue and then the dealer performed the recall. Then she was stranded again and took it back to the dealer and they performed the 21P22 update. Then the next day it is DOA again.

I actually think she is taking these failures with a much happier face than many of us would. I would be livid if that were happening to my car.

Interestingly enough, my car was assembled the day before her car so it is really curious why some owners are having so many problems while others aren't. I wonder if the climate is a contributing factor. I am in AZ... .morning temp here us around 45F and warms up to 70F during the day.
I am guessing many of these LVB system issues are happening to folks who live in the northern areas?

 

[Sleevesmcd]

I think you're over exaggerating a bit in a general sense (not personally). This was an issue that was addressed via a recall and it did "hit the media". I haven't seen a single Job2 vehicle with this issue yet, that I can recall. We don't know how many people who suffer these problems with Job1 vehicles actually had the recall performed.

Additionally, 87% of MME owners say they would buy another (cited). That leaves 13% in the pissed off to "meh" category. If the LVB issues was that widespread and "feared" I don't think we would see these numbers.

It sucks you're going through this, but reliance on this forum which is full of hyperbole is not a basis for saying everyone is worrying about it. I'm surely not! That's like worrying about a pothole blowing a tire because you don't have a spare. If you worry about it all the time, you're doing more harm to yourself than it's worth.

What is the cut point for Job2?

 

[DevSecOps]

What is the cut point for Job2?

Build date of 07/05/21 or newer

 

[Jbkimmel]

I think you're over exaggerating a bit in a general sense (not personally). This was an issue that was addressed via a recall and it did "hit the media". I haven't seen a single Job2 vehicle with this issue yet, that I can recall. We don't know how many people who suffer these problems with Job1 vehicles actually had the recall performed.

Additionally, 87% of MME owners say they would buy another (cited). That leaves 13% in the pissed off to "meh" category. If the LVB issues was that widespread and "feared" I don't think we would see these numbers.

It sucks you're going through this, but reliance on this forum which is full of hyperbole is not a basis for saying everyone is worrying about it. I'm surely not! That's like worrying about a pothole blowing a tire because you don't have a spare. If you worry about it all the time, you're doing more harm to yourself than it's worth.

Just FYI - I’m a Job 2 Owner whose MME locked up on an urban freeway last week, one week after I took delivery. See thread “Catastrophe after one week”. My dealer determined that my 12v was actually defective and has replaced it, about to go get it this afternoon.

And I’ve ordered and received a voltage reader, trickle charger, and jump starter - hopefully more for good luck, but I’m ready…

 

[DevSecOps]

Just FYI - I’m a Job 2 Owner whose MME locked up on an urban freeway last week, one week after I took delivery. See thread “Catastrophe after one week”. My dealer determined that my 12v was actually defective and has replaced it, about to go get it this afternoon.

And I’ve ordered and received a voltage reader, trickle charger, and jump starter - hopefully more for good luck, but I’m ready…

Ok but the issue with job1 was a discharge of the 12v.

All products, cars, microwaves, bug blasters etc have defects. If you had a defective LVB, that's just a "sh*t happens" kinda thing.

 

[deadduck]

I read these kind of threads and think, "so, Ford says do X, but the forum experts say Y will fix it".

Okey Dokey!

 

[Astraea]

As an FYI...
@Astraea 's car is an early Job 1 vehicle and had this issue and then the dealer performed the recall. Then she was stranded again and took it back to the dealer and they performed the 21P22 update. Then the next day it is DOA again.

I actually think she is taking these failures with a much happier face than many of us would. I would be livid if that were happening to my car.

Interestingly enough, my car was assembled the day before her car so it is really curious why some owners are having so many problems while others aren't. I wonder if the climate is a contributing factor. I am in AZ... .morning temp here us around 45F and warms up to 70F during the day.
I am guessing many of these LVB system issues are happening to folks who live in the northern areas?

I appreciate you giving a little background for me! ?

To add to your theory, the first day this happened (1/3) was in the afternoon and the car had been sitting off for only 3 hours and the temp was around 10F at the time. I called ford roadside, and after a 3ish hour wait, I was able to be jumped. Though it took him 2 different jump packs to get it to work and before he got there my husband had drove out with his Edge and had it hooked up to that for around 10 minutes with no luck. Took it out to the dealership Thursday and that uh was a rough day so let's not go there ?. Friday the car didn't move and stayed plugged in at home on a little 15amp level2 charger. Not quick but does the trick ?. Saturday, hop in and all is well, ready to start my work week over hoping all is well and no more problems after a trip to the dealership Thursday. Lunch time rolls around, car has been sitting in roughly -10 weather for about 3 hours. Dead as a door nail when I try to get some food. Call dealership, not very happy but as pleasant as I can be, no technician on the weekend and hope that I can get it there first thing Monday. Waited about 2 hours this time for a tow, not able to jump it so onto the flatbed it goes ( after calling roadside again and re opening the request to tow, no idea why this is necessary). It gets to the dealership closely to me, about 4 miles from my work, and suddenly works? Alright drive it home then I guess. Got it home and right back on the charger it goes. Sunday drive it to work because I have no other choice and cross my fingers. I go out every hour and start it and let it run for about 15 minutes then head back in. I got through the day and drive home and back on the charger. Next day it goes back to the dealer and everything mentioned above happens. Should be all good right? NOPE! Next day, go to leave to get lunch, DEAD. Called around 3pmish for a tow and they didn't show up until nearly 1pm today. It arrived at the dealership 60 miles away roughly 2 hours ago and have not heard anything else. Temps yesterday never got above 0.

 

[jhalkias]

As an FYI...
@Astraea 's car is an early Job 1 vehicle and had this issue and then the dealer performed the recall. Then she was stranded again and took it back to the dealer and they performed the 21P22 update. Then the next day it is DOA again.

I actually think she is taking these failures with a much happier face than many of us would. I would be livid if that were happening to my car.

Interestingly enough, my car was assembled the day before her car so it is really curious why some owners are having so many problems while others aren't. I wonder if the climate is a contributing factor. I am in AZ... .morning temp here us around 45F and warms up to 70F during the day.
I am guessing many of these LVB system issues are happening to folks who live in the northern areas?

Not that this means anything . . . but mine was built 1/7/21, and our temperatures have been in the teens with no problems . . . so far. But mine is also garaged at night.

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