High Voltage Battery Warning+Powertrain Malfunction

[jpiazza67]

Shortly after coming home and parking the car, messages came up with a high voltage battery warning saying, electrical system fault detected, your vehicle may shut down without further warning, stop your vehicle, park, shut off, restart. If the fault remains, contact service.
The other fault was says, powertrain malfunction, contact service. That was July 5th, I drove the car serval times between then and the service appointment without a fault message or issue. They say they need to install a new battery array and some parts are on back order and they weren't sure of the ETA, they recommend not to drive the car.
So to the knowledgeable members here, do you have any advise or insights into what I should expect and or know about as this work gets done. After talking with the service manager, it sounds like they are planning to replace the entire battery. Are there any weak links in the powertrain/charge system that should be addressed when they do that? My car is from the buyback program. A battery replacement and high voltage port/line was replaced as part of the buyback before I bought the car.

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[RickMachE]

So the battery was already replaced, as was the HVBJB, and yet again this car has an issue? Wow. Speaks volumes about not buying a buyback vehicle.

 

[Ford Motor Company]

Shortly after coming home and parking the car, messages came up with a high voltage battery warning saying, electrical system fault detected, your vehicle may shut down without further warning, stop your vehicle, park, shut off, restart. If the fault remains, contact service.
The other fault was says, powertrain malfunction, contact service. That was July 5th, I drove the car serval times between then and the service appointment without a fault message or issue. They say they need to install a new battery array and some parts are on back order and they weren't sure of the ETA, they recommend not to drive the car.
So to the knowledgeable members here, do you have any advise or insights into what I should expect and or know about as this work gets done. After talking with the service manager, it sounds like they are planning to replace the entire battery. Are there any weak links in the powertrain/charge system that should be addressed when they do that? My car is from the buyback program. A battery replacement and high voltage port/line was replaced as part of the buyback before I bought the car.

Hi there! I can look into your Mach-E's error message concern on my end. To get started, could you please send a private message over with the name/location of your local Ford dealer and your Mach-E's VIN?

 

[jpiazza67]

They ended up needed to replace the front battery array and already have it replaced, I picked her up from the dealership today. It was fun to drive a new Bronco Sport loaner for a week but I’m happy to have the Mustang back.

 

[jpiazza67]

But that is not the end of the story. Now the battery immediately drops about 10% battery charge. After every time I plug in and charge at home. I lose about 3% before I leave the driveway and a total of about 10% in the first mile. After that, it uses the energy at the normal rate. What could be the issue? I’m being it back for service next week.

 

[Mach-Lee]

But that is not the end of the story. Now the battery immediately drops about 10% battery charge. After every time I plug in and charge at home. I lose about 3% before I leave the driveway and a total of about 10% in the first mile. After that, it uses the energy at the normal rate. What could be the issue? I’m being it back for service next week.

The new cells might not be balanced perfectly yet. Continue to charge to 90% and things will gradually improve over the next 3 weeks

 

[ElectricSnowbird]

Any update on this issue, jpiazza?

 

[67mustang24]

My 2024 GT w/ Performance Upgrade - spontaneously gave me a Powertrain Malfunction/High Voltage Warning.

To say the least...it was a unexpected and miserable experience.

As previously documented this was pertaining to a HVJB issue and a re-call on prior models had been issued. So therefore, I was well aware of this potentially being a problem.

Long story . I received the warning and had no choice but to utilize Roadside and transport to closest dealership.

Here is what I learned:

·Tow-truck driver was an idiot
· Did not know how to tow an electric vehicle and did not know or was willing to drive the vehicle

(fortunately, this forum had provided invaluable information) and I was able to direct him to this:
https://www.macheforum.com/site/threads/mach-e-winch-recovery-tow-points.13553/

·Despite this, he felt uncomfortable, so I asked him to contact his boss/Ford to express his discomfort and figure out alternative means

· Ultimately, against company policy, I drove my own vehicle onto his flat bed because there was no apparent alternative.

· I informed the dealership of the warning and they seemed to being somewhat clueless on this being a HVJB issues

· Contacted Ford Canada customer relations directly to express my non-confidence in the dealer

·Ford Canada directly contacted the dealership, whilst they did not commit and state it IS the HVJB and has NOTHING to do with the prior re-call, they suggested it is the "connectors" going to the HVJB. The part was on backorder x 1 month!!


· Ford Canada helped to expedite the part delivery to the dealership.


·Picked up my vehicle with 15% charge - not enough to get me home. Despite me calling them hours in advance to kindly charge my vehicle prior to pick-up.

· It was -15 Celsius, so even without heat, I would not make it. When I went back inside to inquire, they suggested I go to Honda so I can get a 'fast charge.' Found out by a sales rep, they forgot or did not plug vehicle in when I had originally called them.

· Left my passenger seat with dirt on them ? Like seriously....


___________


TLDR


IF you have a HVJB or "connectors" going to HVJB that fail. Do not rely on dealership to advocate for you. Contact the dealer, plus roadside, plus customer service to expedite repairs and fix THEIR issue. I love this car and so glad that I received it 3 weeks before 'planned.'

But this is not a silver-lining.

I really had to advocate for myself and escalate to ensure things would happen. I gave Ford the benefit of the doubt that they would take care of things without hassle. While I love this vehicle and definitely PRO-EV - I do not have any regrets with my Mach-E, I am certainly a bit sheepish to recommend to friends/family.

 

[Snakebitten]

The car was drivable up onto the wrecker?

So it wasn't drivable to the dealership?

Dealerships these days certainly don't exude confidence. Hope the car is sound from here on out for you.

 

[ThunderClap]

Hi there! I can look into your Mach-E's error message concern on my end. To get started, could you please send a private message over with the name/location of your local Ford dealer and your Mach-E's VIN?

I have reached out multiple times, pinging you about my concern.

What dont you work on it? Or respond back?

 

[Snakebitten]

The Ford monitoring account is in transition on the forum currently.

 

[67mustang24]

The car was drivable up onto the wrecker?

So it wasn't drivable to the dealership?

Dealerships these days certainly don't exude confidence. Hope the car is sound from here on out for you.

To clarify...

I first received an alert whilst driving. Wrench symbol in the heads up?

I was driving rural and this what showed on app.

Car continued to drive on reduced power, I had baby in back, so there was no pulling over - just straight home.

Presumably shortly after, unbeknownst while I was driving I received another prompt.

This was on the app when I got home. So I assumed it had to of warned me during my drive. Yet I knew the car drove...

Called roadside. They were prompt. However since I was home & there was a snow storm we mutually agreed to have car picked up the car next day.

That's when's the disconnect began.

While, Ford Roadside is helpful and knowledgeable - Towtruck companies are just contracted to Ford's Roadside service and dealerships are privately owned.

Ford Roadside quarterbacks how your undrivable car gets to a place for service.
However, Ford employees are seemingly not privy to the scope of the tow companies Ford has contracted. Nor do they have direct control/access of individual dealerships.

The enterprise on the ground level is fragmented and who is left to take ownership when something goes awry?

I do hope there are no further issues also.

I understand in our endeavor of technology there are going to be issues and I can accept that. I still support the product but it's a two way street.

I have given my feedback to Ford Customer Service as respectfully as possible. I encourage others to do the same to improve the service for all owners current and new.

The car was drivable up onto the wrecker?

So it wasn't drivable to the dealership?

Dealerships these days certainly don't exude confidence. Hope the car is sound from here on out for you.

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