12V battery app notification - Questions

[Justconn1]

I did everything to reset the BMS, drove the car, let it sit for 6 hours…the alert is still there in the service tab of the app at the top of the screen.

Sponsored

 

[Jessnyc]

I am seeing the same message in the app - so will ask them about it when I go get the car a little later today and see what they say about it

 

[Jessnyc]

Those are normal Mach-E codes that don’t need to be addressed. Just pay to have the 12V battery replaced and that’s it, no diagnostics or programming needed. You can reset the BMS yourself for free.

I see, I was concerned because of the errors I was getting and then not having 1-pedal drive anymore - getting pre-collision warnings etc once I got in the car. So when he was mentioning the modules I tho it was related?

i am curious tho. Since according to him, i was having these errors since 5/31/25 — wouldnt errors get thrown while I am in the car or driving it at some point? I never once saw anything pop up regarding any of the stuff i saw on Monday. ?

 

[mateo]

I have a couple questions about this. Is the message still showing up as an Active Alert in the service tab of FordPass, or are you just seeing it in message history? Also, have you driven the vehicle yet after resetting the BMS?

Yeah, it's been driven over 500 miles. The alert is at the top of the service tab. "Check 12-Volt Battery, Tap to learn more and resolve."

 

[steveg95]

Hey yall, I am at the dealership right now for the 12 volt battery notification i got from the app. It failed there test and needs to be replaced.

I went to Tasca Ford in NY for it, and the price for the entire service is about 1k. What exactly is the Battery Terminal Service? I asked the guy and said its recommended since replacing the 12V, but didnt go into anymore details.

Do these prices seem correct to you for replacing? Just generally curious.
- 12v : $495.08
- Battery Terminal Service - Perform BG Battery Service: $174.75
- Also charged $259 for diagnostic — which is the first time im ever hearing about this for EVs or in general while coming here.

Bare with me as this is the first time ever having to deal with any of this.

They're out of their freaking minds. I bought a battery for about $150 and replaced it myself in about 20 minutes.

 

[JoeBeach]

They're out of their freaking minds. I bought a battery for about $150 and replaced it myself in about 20 minutes.

You definitely need to change dealers if at all possible. Opps, meant for the OP.

 

[Mach-Lee]

I see, I was concerned because of the errors I was getting and then not having 1-pedal drive anymore - getting pre-collision warnings etc once I got in the car. So when he was mentioning the modules I tho it was related?

1-Pedal drive fault is a random glitch. In most all cases it will be gone the next time you start the car. You only need to address it at the dealer if it happens repeatedly.

Yeah, it's been driven over 500 miles. The alert is at the top of the service tab. "Check 12-Volt Battery, Tap to learn more and resolve."

Yeah it seems like there might be an issue clearing the 12V battery message after battery replacement on some vehicles. Assuming the battery was actually replaced and BMS reset properly it should be good to go. Perhaps it's a server issue.

 

[Jessnyc]

1-Pedal drive fault is a random glitch. In most all cases it will be gone the next time you start the car. You only need to address it at the dealer if it happens repeatedly.



Yeah it seems like there might be an issue clearing the 12V battery message after battery replacement on some vehicles. Assuming the battery was actually replaced and BMS reset properly it should be good to go. Perhaps it's a server issue.

I got the car back with the 2 modules updated ?‍ , and things seem to be working like the car was before I brought it to them.

Also I and asked about the App message still displaying. The guy said he doesnt know why it is showing up when they did the swap and reset the BMS. I am guessing its an app issue and wont clear til they fix whatever backend issue they have.

Sponsored