Stop safely now warning -- battery replacement?

[jcm55]

Bought a '21 Mach-E this past June. They're hard to get a hold of as I'm sure you all know, so I bought one remotely from a dealer in Casper, WY and had it shipped to my home on the Nevada side of Lake Tahoe. It was their loaner for VIP customers with ~1000 miles on it. A red Premium / Extended range.

I've been super happy with the car until last week. On Tuesday I drove it down to the Bay Area for onboarding at a new job and parked it in a parking garage in downtown Palo Alto to charge, with about 25% battery remaining. The LED ring turned orange and I got a charge error from the Ford Pass app. Same deal after a couple more tries, so I got back in the car to move it to a different charger and saw the "Stop Safely Now" warning on the dash and it wouldn't shift out of Park. A quick Google and I knew I was f'ed so I called Roadside Assistance for a tow who took it to Sunnyvale Ford.

The service tech has been back and forth with Ford support a bunch, and they still can't figure out why it won't charge. So Ford's recommendation now is to replace the entire HV battery. That seems extreme, but I'm not really in a position to argue. Anyone else been through a similar problem?

I'm also curious how much dismantling will be required to replace the entire battery. My experience with a couple of past vehicles where something major needs to be fixed is that the car never goes back together quite the same way -- rattles or other annoying follow-on issues from imperfect reassembly.

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[RickMachE]

There are several threads with the same issue, yes. Figure weeks just to get the HVB.

 

[Motomax]

The battery is bolted to the bottom of the car with a few electrical and cooling connections. I wouldn’t worry too much about reassembly.

 

[Caliroute1]

Mine was something about a Junction box between the 12v and the Big battery, they replaced it in about three weeks so far so good.

 

[Astraea]

Mine was something about a Junction box between the 12v and the Big battery, they replaced it in about three weeks so far so good.

This is what they are doing to mine next week. Hopefully this fixes my issues as well. ?

 

[Caliroute1]

This is what they are doing to mine next week. Hopefully this fixes my issues as well. ?

Aggravating this is my second Mach E Different problems. My current one is a GT.

 

[AZBill]

I just had the entire battery replaced in my Bolt due to the recall, no issues afterward. It involves removing some connections and draining the coolant, but mostly just unbolting it and lowering with a scissor jack table. It took the dealer 2 days to replace mine, but of course I did not take it in until they had the new battery.

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