"Starting battery" failure post - update #1

[734jeant]

To review, in December, my car stopped running with red screen, "stop safely" warning. I took it to the dealership and they diagnosed the problem as a bad 12V battery and, after 2 weeks, replaced it. This was contrary to the diagnosis I got from another forum user. Many thanks to Mach Lee for his help.

Last week, the car stopped AGAIN. I couldn't get it restarted, so I waited for a tow to the dealership. Long story short, I am still waiting for a diagnosis from the shop. They don't have a loaner available. Amazingly, Ford "Customer Service" has been in touch but have no answer to my question, "WHY WOULD I EVER TRUST THIS CAR AGAIN?????????????????????????" It will sit in my driveway forever. Useless $$$$$$ Thanks Ford.

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[SJP]

I had a similar problem. They basically just rebooted the car and it's been fine since. As an added precaution I purchased a booster box ($50 bucks at amazon) because I learned if it ever happens again I just need to hook up the booster to the battery and until the error message goes away...

 

[TheSteelRider]

To review, in December, my car stopped running with red screen, "stop safely" warning. I took it to the dealership and they diagnosed the problem as a bad 12V battery and, after 2 weeks, replaced it. This was contrary to the diagnosis I got from another forum user. Many thanks to Mach Lee for his help.

Last week, the car stopped AGAIN. I couldn't get it restarted, so I waited for a tow to the dealership. Long story short, I am still waiting for a diagnosis from the shop. They don't have a loaner available. Amazingly, Ford "Customer Service" has been in touch but have no answer to my question, "WHY WOULD I EVER TRUST THIS CAR AGAIN?????????????????????????" It will sit in my driveway forever. Useless $$$$$$ Thanks Ford.

In case other readers are wondering ... here: https://www.macheforum.com/site/threads/starting-battery-failure.32320

The problem is not the 12V or starting battery.

On November 8th and 27th, you got a P0B3B code in the BECM for a fluctuating cell voltage readings in the high voltage battery pack, cell 1-12 range. This could indicate a problem inside the high voltage battery pack. The cell voltages were reading normal when they checked, so it's an intermittent condition.

The last time I saw this code, they had to replace the BECM module inside the battery pack to fix the issue. It may be intermittent until then.

 

[734jeant]

I had a similar problem. They basically just rebooted the car and it's been fine since. As an added precaution I purchased a booster box ($50 bucks at amazon) because I learned if it ever happens again I just need to hook up the booster to the battery and until the error message goes away...

But, WHY did it have to be rebooted in the first place? PITA.

 

[Ford Motor Company]

To review, in December, my car stopped running with red screen, "stop safely" warning. I took it to the dealership and they diagnosed the problem as a bad 12V battery and, after 2 weeks, replaced it. This was contrary to the diagnosis I got from another forum user. Many thanks to Mach Lee for his help.

Last week, the car stopped AGAIN. I couldn't get it restarted, so I waited for a tow to the dealership. Long story short, I am still waiting for a diagnosis from the shop. They don't have a loaner available. Amazingly, Ford "Customer Service" has been in touch but have no answer to my question, "WHY WOULD I EVER TRUST THIS CAR AGAIN?????????????????????????" It will sit in my driveway forever. Useless $$$$$$ Thanks Ford.

Hi there! Would you send us a private message with your VIN and dealership name and location? I’d like to look into this concern on my end.  

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