Stop safely now

[scoopman]

When DC fast charging, I always disengage the charger first using the UI on the charger unit. I then wait about 15-20 seconds before unplugging. At that point, there is no electricity flowing as the plug is pulled.

There was a whole discussion of that, the charger design prevents arcing because a low current pin disconnects first in the design. I don't think what you are suggesting makes any difference.

I think there's a design flaw. I'm just wondering if they'll recall or change the software if possible as a workaround.

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[BadgerGreg]

Not true for me. I almost always use L2 at home. I did do a extensive DCFC about a week prior to my failure from 0- 100% however.

Me too. 85%+ of my charging is Level 2. I'm not a heavy DCFC user unless I'm road tripping. I'm not convinced this is related to DCFC charging.

 

[LS61303]

Once you get TSB 21p22 done by Dealership you *should* be ok in most cases for HV->LVB from what I've sifted out of the threads. You just have to check carefully that the Dealership actually suceeded in updating ALL the modules in the TSB.

Any chance you have a PDF of this TSB? I just got the HVB Warning this week and although the car drives okay, I have reduced power and am taking it in. It’d be nice to take a peek at this TSB to see if my symptoms match up.

 

[Kamuelaflyer]

Have y’all noticed a certain trim this is happening to? Seem like I see mostly GTs? At any rate, it’s a very scary occurrence. OP, I hope this gets resolved quickly.

Unless you've compiled statistics, I don't think that's a valid conclusion. GTs weren't delivered until 2nd half of 2021, yet many of the issues are from early 2021 vehicles.

What Rick said.

In addition you’d also have to compare the raw number of HVBJB failures (and other causes for the message) to cars sold via trim line (Select, CR1, Premium, GT, GT-PE). Right now the premium is the most popular trim line followed by the overall GT. And there are likely a zillion other factors to cross reference in the search for the failure point’s cause. There are people who get paid to track and figure this stuff out. I’m not one of them.

 

[dtbaker61]

Any chance you have a PDF of this TSB? I just got the HVB Warning this week and although the car drives okay, I have reduced power and am taking it in. It’d be nice to take a peek at this TSB to see if my symptoms match up.

I got my abbrevs wrong... It's a CSP, not a TSP... here's what I have on it, and all the modules that are supposed to get updated. The problem is that some dealerships have old versions of FDRS and don't finish updating all modules.... and unless you have access to the FDRS tools, you can't verify whether or not your vehicle got all available modules updated.

 

[dtbaker61]

There was a whole discussion of that, the charger design prevents arcing because a low current pin disconnects first in the design. I don't think what you are suggesting makes any difference.

I think there's a design flaw. I'm just wondering if they'll recall or change the software if possible as a workaround.

if it turns out to be the pre-charge sequencing or duration.... it MIGHT be corrected with software. But if it is design, or a bad batch of Contactors, then it's just a hardware failure problem.

 

[russell]

I got my abbrevs wrong... It's a CSP, not a TSP... here's what I have on it, and all the modules that are supposed to get updated. The problem is that some dealerships have old versions of FDRS and don't finish updating all modules.... and unless you have access to the FDRS tools, you can't verify whether or not your vehicle got all available modules updated.

CSP 21P22 has now been extended to cover additional build dates through September 30, 2021.

https://www.macheforum.com/site/thr...f-for-the-windshield-recall.16707/post-403395

https://www.macheforum.com/site/thr...through-sept-30-2021.16060/page-3#post-411129

 

[SpaceEVDriver]

Have y’all noticed a certain trim this is happening to? Seem like I see mostly GTs? At any rate, it’s a very scary occurrence. OP, I hope this gets resolved quickly.

@TonyaE, I'm responding to you even though you know about this new thread.

I started a new thread to try to gather the data in one place (as well as gather speculations about the failure modes and reasons into one place):

https://www.macheforum.com/site/thr...ry-junction-box-issues-stop-safely-now.17433/

 

[2022machEGT]

bummer!

- pull the rear and drivers side beauty covers in the Frunk....
- have *anybody with jumpers* hook up to your 12v connection points for 20 minutes with their vehicle running to charge your LVB

- THEN fire up and get to your Dealer for sw updates so that LVB gets charged correctly and/or they can check diagnostics for HVBJB error codes.

Thank you for the info

 

[Socalsp3]

It shouldn't take Ford until 2022 to figure this problem out. They've a lot of 2022s to fix now. Ford doesn't have a great track record on recalls. My wife had a Ford escort with one of those bad transmissions Ford refused to fix for so many people

 

[Ford Motor Company]

I parked my new 2022 Mustang Mach GT so I could grab lunch, was in the restaurant for 20 minutes. Come back out to leave and the car wont start. The speedometer readout screen says "Stop Safely Now" can't move the car out of park. Stuck now. Battery is at 84%. It's only like 75 degrees outside. Only have 2869 miles and only had like 3 weeks! Someone help!

Hey there! I can look into your Mach E's “Stop Safely Now” message concerns on my end. Will you send us a message with your VIN and dealership info?

 

[2022machEGT]

Hows the 12volt

the 12V is at 6V this morning

 

[2022machEGT]

Absolutely make sure the tow truck driver knows it’s an electric vehicle knows where the tow points are knows what to do otherwise you can destroy the car. I had that issue with two cars sold them both now waiting for another one and unsure whether they have fixed it it’s a high voltage problem between the 12 V and the main battery module

Jes sayin. Sorry..

Thanks brother. I was able to get a repo guy to tow it with dolly to avoid contact points

 

[2022machEGT]

It's happening to early builds AND newer builds. I have a hunch that there may be something wrong with the HVBJB design. When they replaced my HVBJB last month, the replacement unit failed almost immediately. That said, my car is technically on its THIRD HVBJB already. I hold my breath every time I attempt to start the car.

how long did it take to get the parts?

 

[2022machEGT]

Update to my original thread.

The car is at the dealer now with a totally dead 12V battery. They haven't even looked at it yet and I'm in a rental car at least. Today is the 4th day its sitting at the dealer but to be fair it was brought late on a Saturday by the tow company. The dealer says they have never seen this before so I hope its not going to be an extended stay. I am considering trading it in for something else. This whole thing has me slightly worried about the car as a whole. I just get the feeling that Ford rushed the release of this EV in order to get with the crowd of competitors of EV sales.

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