Battery Contactor Recall Software (22S41) Now Available at Dealers

[Motomax]

Well a software fix seems plausible. If Ford thinks the issue can be solved by limiting how hot these contactors get, an easy solution is to have the software limit power at a lower temperature threshold.

I think there would be howls if Ford cut charging speed or peak horsepower in all situations.

I think a decent guess would be that there will be more situations than before where flooring it will not give max power. Along the same lines, I’d guess that it would be a bit harder to get peak L3 charging speed, because the software fix might be that the car throttles things more aggressively than before for the sake of contactor temperature.

If this is what Ford did, hopefully these situations will be very few and very far between - the HVJB failure was at the end of the day a really rare occurrence, all things considered.

I’m not saying that software can’t help prevent the failure but the cause definitely isn’t software related. Just think, « 5 sec limit ». No one on here thinks, yup that was perfectly designed lol
I have a standard range RWD and never fast charge so I’ll likely never notice anything (assuming they at the very least designed it to handle the least powerful trim lol). I just find the “omg OTA software for the win” group to be quite entertaining.

Sponsored

 

[Crilly]

Does anyone know what causes the problem? Does anyone know why the download well fix it?

 

[jbirdzee]

Does anyone know what causes the problem? Does anyone know why the download well fix it?

Nope, not a clue. Havent heard a thing about it on these forums.

 

[shelnian]

So just no mention at all on needing to replace parts? Interesting, I thought GTs were at least for sure having to get new parts. I wonder if there will be a TSB out for the stop safely now message or whatever other warning that is going to pop up if these updates work as intended and tell the driver they're about to have an issue.

I would assume that If the software update detects some unspecified number of overheating events, then a request to schedule service will be displayed. I would expect the dealer will replace the HVBJB during this service.
Basically the software will monitor contactor health and request a replacement if it detects failing contacts. I don't know this for a fact, just my engineering guess.

 

[dtbaker61]

The recall fix is now available, ahead of schedule. The fix will be available at dealers now and as an OTA later. You can wait for the OTA in late July/August if you don't want to go to the dealer. Also available in FDRS for self-updaters.

This is a software fix, no parts are required.

A big thanks to the engineers that got this out early! ??

View attachment 22S41 Bulletin.pdf

View attachment 22S41 Tech Info.pdf

so..... all a software fix can do is reduce the heat by reducing the loads, which means additional power limiting, or at the very least limiting the combination of high load producing events on top of high ambient temps.

I thought 'beefier contactors' were in the replacement HVBJB (the new part number) ?!

If this 'software only' fix reduces power output to avoid the cost of correcting with better parts..... I'm going to be pretty disappointed.

 

[fpasta]

We will soon find out here in a matter of weeks if not days. Someone will WOT And DCFC or what have you! To test this update. More power to them.

God speed and make sure to keep it safe! Controlled environment preferably.

 

[dtbaker61]

Does anyone know if this is not going to neuter your car's performance for "safety reasons"?

THATS the question we should all be asking

 

[Neil4Real]

THATS the question we should all be asking

It has been asked ad nauseam. Only time will tell as people report back.

 

[AKgrampy]

What I am interested to see is will anyone instantly get some kind of error message on their first drive after the update. Serious, not cynical, question. If 0.5% was the failure rate then some of us may/should have marginal contactors which would give an error message (or something) right away.

 

[AKgrampy]

While I know no one can fully answer this question....if you are not planning on using a DCFC and don't plan to floor the car any point to try and run to go to the dealer or just wait for the OTA at this point?

I will not be using DCFC as I only charge I at home. I may go WOT and may not but will just wait for the OTA as I am not concerned. A dark side of me wishes that my HVBJB would fail before the update. Then I would have both the new part and software fix.

 

[Secret Sauce]

If anyone waiting for delivery is told their car is updated and ready for purchase please let everyone know.

 

[AKgrampy]

If anyone waiting for delivery is told their car is updated and ready for purchase please let everyone know.

Pretty sure a few have already posted they have been contacted and their cars are being updated.

 

[JohnFoxeSheets]

Well, I've gone ahead and made an appointment for Thursday at the dealership to get this done. Will also get SSM 50845 done at the same time. Hopefully it all goes smoothly. ?

 

[Secret Sauce]

Pretty sure a few have already posted they have been contacted and their cars are being updated.

In this thread? Only one person said they’d been contacted by their dealership about the remedy. Nobody has said yet that their cars have been released from the stop sale. That’s what I am waiting to hear.

 

[AKgrampy]

In this thread? Only one person said they’d been contacted by their dealership about the remedy. Nobody has said yet that their cars have been released from the stop sale. That’s what I am waiting to hear.

I believe there were three on the long thread. One said today and the others were picking up in the next couple of days.

Sponsored