Has anyone with a 2021 found a fix

[James L]

Did anyone get there 2021 fixed after the bad update that caused all the errors/warnings?
After my update around August 4th, my 2021 Mach-e went crazy with error codes and was basically undrivable.
The dealer replaced the 12V Battery hoping to fix it, that did not work.
Since then, It seams the BEV team has no fix as of now, I am hoping someone got there's fixed, and can send me a solution.

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[SonicBlue]

Can you be more specific? What update? What errors?

 

[B25Nut]

I took my '21 into the dealer for the first time 3 weeks ago. I was also getting constant 12v warnings. The technicians reset the BMS, performed IPMA alignment and reprogramed the battery charge control module. The Mach-E has performed perfectly ever since., still operating on its original 12v battery.

 

[johnnycombo]

Sounds like your dealer service technician is a parts changer, shop around for a service department that actually has a trained technician! I went to four dealerships before finding a technician worth his salt.

 

[Mark K]

I took my '21 into the dealer for the first time 3 weeks ago. I was also getting constant 12v warnings. The technicians reset the BMS, performed IPMA alignment and reprogramed the battery charge control module. The Mach-E has performed perfectly ever since., still operating on its original 12v battery.

I have heard too many horror stories on 12v batteries going bad. I am in FL - HOT - Generally go bad between 3- 4 years normally. I just changed mine out for a new to be safe.

 

[James L]

I have heard too many horror stories on 12v batteries going bad. I am in FL - HOT - Generally go bad between 3- 4 years normally. I just changed mine out for a new to be safe.

I am in FL also, on my 3rd 12v in 45k miles.

 

[Mark K]

I am in FL also, on my 3rd 12v in 45k miles.

Wow 1st 12v replaced on my 2021 -I only have 22k miles

 

[TRP]

I am in FL also, on my 3rd 12v in 45k miles.

Seriously?!?!?! I'm over 90k miles and on my original battery

 

[OH2AZ2OH]

12v batteries in EVs don’t care about mileage. Heat and age have a much bigger effect.

 

[Space_Pony]

12v batteries in EVs don’t care about mileage. Heat and age have a much bigger effect.

It would seem that lower mileage would be harder on the LVB since the LVB could wind up with a consistently lower state of charge since there is less charging taking place.

 

[HuntingPudel]

I am in FL also, on my 3rd 12v in 45k miles.

Ouch. My 2014 FFE’s 12V battery died in 3 months. It still has the same 12V in it now. I am hoping my MME 12V lasts at least a couple more years, as I live in a really mild area. ?‍?

 

[dtbaker61]

Ouch. My 2014 FFE’s 12V battery died in 3 months. It still has the same 12V in it now. I am hoping my MME 12V lasts at least a couple more years, as I live in a really mild area. ?‍?

if your 12v is over 36mo, I'd call dealership to make sure they have one on the shelf, or order your own. I think RockAuto has them now...

 

[HuntingPudel]

if your 12v is over 36mo, I'd call dealership to make sure they have one on the shelf, or order your own. I think RockAuto has them now...

Yeah, Rock Auto has had them in stock for over a year. ??

The weather here is pretty consistent and around the 70s, so the battery should last longer than in TX or FL. The Optima in my T/A was purchased in 2002. It still cranks the over-sized Pontiac over like it hasn’t got spark plugs in it. My Blazer’s Optima is a youngster (2007 purchase) and still cranks the puny little C#@vy 350 over like nobody’s business. My 2014 FFE’s 12V was replaced in 2014 and is still going fine now. I am hoping for a 5 year replacement on the Motorcraft battery in the MME. ?‍?

 

[azerik]

Ouch. My 2014 FFE’s 12V battery died in 3 months. It still has the same 12V in it now. I am hoping my MME 12V lasts at least a couple more years, as I live in a really mild area. ?‍?

My FFE turtled my wife the other day, 1st time in 104,832 miles. Granted the AC appears to be leaking which might have lead to the turtle. (And it was a crisp 111 in the shade) 3rd 12v battery though

 

[HuntingPudel]

My FFE turtled my wife the other day, 1st time in 104,832 miles. Granted the AC appears to be leaking which might have lead to the turtle. (And it was a crisp 111 in the shade) 3rd 12v battery though

You guys must love cooking your batteries to well-done. ??

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