Safety Recall 22S41 - 2021-2022 Mach E - HVBJB Recall [high voltage battery main contactors may overheat]

[billy_at]

Actually disappointed. Hardware fix should be the proper fix, but too costly, and if the new part is not same physical dimensions, could be really costly. Software fix is workaround, likely lowering the current - slower charging and/or slower acceleration. I sure hope they have some more creative changes that don't affect charging and performance.

Possibly! We don’t know yet. And the only thing the recall says is power will be limited when a dangerous resistance or temperature condition is detected - not that power will be limited generally.

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[billy_at]

And the only thing the recall says is power will be limited when a dangerous resistance or temperature condition is detected - not that power will be limited generally.

I’m about to make this phrase my forum signature….

 

[BigMach-E]

We have very little Intel at this point about what the software fix is even going to do. I know it's very hard to sit and wait for more answers. But, I also don't think it's fair to automatically assume that the software fix will throttle the car.

We just don't know yet. It might behove Ford to give more information as to exactly what the software fix does.

 

[SolarAB]

I wonder if "high-voltage battery main contactors overheating" could also be responsible for charging issues some customers have been experiencing. One worries about the impact a software workaround for a hardware deficiency might have on the performance of the car.

 

[Jimbo]

Sorry to say, but you're speculating and don't have a clue. There is already further information that the software monitors for the condition before doing anything. Given that it has only happened to .5% of the cars over their lifespan then you could expect to see a power reduction less than .5% of the time.

Sorry to say, but you're speculating and don't have a clue. Why are you assuming the software "fix" only kicks in to reduce power right at the point of failure?

 

[Mike G]

It may be there? This member mentioned that updates for the affected modules were posted on May 24. Cars built after May 25 are not impacted. Unclear if it's the software update that solves this recall.

https://www.macheforum.com/site/thr...ain-contactors-may-overheat.18681/post-441720

I just checked in FDRS...it's not there yet. I have an AWD ER.

Mike

 

[Robotoo]

I hope they won't turn the Mach-E into a Toyota to prevent overheating :-I

 

[rcechinel]

This is what I really want to know. Have past incidents of DCFC and flooring it without the updated software weakened or damaged the HVBJB in some way, making it more likely to fail in the future?

My guess is we will never know. If the car bricks after a software update, take it to a dealer, get it replaced, and end of story.

 

[Nklem]

What is that screen from?

Ford ETIS. Just search it, enter your VIN and recall status appears. It does not show on the Ford.com website yet. This is a Ford Techincal Information Service site.

https://www.etis.ford.com/vehicleRegSelector.do

 

[rcechinel]

It's exactly as I said pages and pages back. A hail mary play to attempt to mitigate the disaster of cost this hardware problem would bring. It's also intelligent. I just question if they really have a temperator sensor where it's needed or they are going to attempt to infer the temperature of these parts with data they do have.

That's where I'm intrigued. The recall details say that even new builds would only get a software update, no new parts (although this seems conflicting with the other thread we have here, where new part numbers are posted). More wait and see, I guess. Or wait and never see, more likely.

 

[IB_NYC]

What is a "wide open pedal event" ? Just flooring the car at like 90 mph for 5 -10min?

Sounds like you need to DCFC and then hit the highway and floor the car for this issue to show up?

Fingers crossed for an IPC buzz noise software update soon! That's been the most annoying thing for me with this car.

 

[Quethas]

Sorry to say, but you're speculating and don't have a clue. Why are you assuming the software "fix" only kicks in to reduce power right at the point of failure?

Not to speak for him, but probably because that's what the recall describes as the remedy.

"The updated SOBDMC software... will monitor contactor temperature and intelligently reduce battery power to prevent damage to the contactor. The updated BECM software... will monitor contactor resistance to identify an overheated contactor and reduce vehicle power to prevent further damage."​

https://static.nhtsa.gov/odi/rcl/2022/RCLRPT-22V412-2331.PDF​

They don't say the updated software limits maximum power draw, or anything of the kind. They say it intelligently monitors temperature and resistance to identify problem conditions and reduce battery power in those scenarios to prevent damage. Seems pretty clear to me.

 

[ripperAZ]

With the production delays and the various recalls on this vehicle I believe Ford could go a long way by including 10 pounds of chicken wings with every MachE. I am noticing they are nearly a dollar a wing now at my sports bar and this would be a great boost to the economy

Jes sayin. Frunk is multitasking. It hides needed components like the 12 V but does handle wings and shrimp quite well

 

[SolarAB]

Ford ETIS. Just search it, enter your VIN and recall status appears. It does not show on the Ford.com website yet. This is a Ford Techincal Information Service site.

https://www.etis.ford.com/vehicleRegSelector.do

This is a great resource. Unfortunately it reveals that my Mach E is on the recall list for 22S41 - MAIN HV CONTACTOR WELDING

 

[Matt Bagne]

It's really quite a lot of meat:

Is this one of those tricky dealer mods we discover when we pick up our MME? "Hey, I didn't order tinted windows, nitrogen in tires, or chicken wings"!

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