It’s a valid follow up question. We all want to know if there will eventually be an OTA to fix this.
You’re not going to get an answer on that anytime soon. We tend to crucify people here for missing projected dates.
Don't misunderstand me, I'm just clarifying.The 12V lockout recall software (25S65) has been released for all Mach-E's as of today. You can now schedule to have it installed at your dealer if you have a '21-24 vehicle. The update will take the technician about 30 minutes to apply. I've already installed the software on my car, and as expected:
- The charging system will maintain 14.5V for 12 minutes after vehicle shutdown.
- If the 12V battery were to fail while driving, the DC/DC converter will continue to provide power to the door latches through the 12-minute post-shutdown period, allowing unlock and entry/exit.
After the update, you may notice the slight hum of a cooling pump running after driving and parking the car (if it's warm outside). This is normal, it is cooling the DC/DC converter producing the 12V power. If it's cool outside, the vehicle will be silent with no indications the 12V is actively charging. The high voltage system now stays energized during the 12-minute post-shutdown period. After 12 minutes have elapsed, you will hear two successive clunks, which are the main high voltage contactors in the HVBJB opening.
This update will also be beneficial if you drive many short trips (<10 minutes), because you will have additional 12V charging time after shutdown. This will help keep the 12V battery charged up, and covers the load of headlights, screens, and opening/closing doors during the post-shutdown period. Before, all those accessories would drain the 12V battery by about 5-10% after each shutdown.
One important service change—if you are replacing the 12V battery from now on, you will now need to wait at least 12 minutes after the vehicle is shut down before removing the battery terminals. The charging system will remain powered up (and may be silent). If you don't wait 12+ minutes, you could short out the DC/DC converter or blow a mega fuse if the positive cable touches ground, even after removing the negative terminal. Terminal voltage should be less than 13V before removal.
When you say "all Mach E's" is that just in North America or does that include the rest of the world. In the past some updates have been for North America only which can cause some confusion.
If this situation was subject to a UK DVSA recall, or a Ford voluntary program, and if Ford uses FordPass to communicate about such events in the UK, then going to FordPass and selecting Service tab -> Service Schedule -> Active Recalls or Customer Satisfaction Programs, may answer the question as to your vehicle.Don't misunderstand me, I'm just clarifying.
I don’t doubt a word of this. It’s just odd that this info isn’t posted by the official Ford guy on this forum. This is the specific info about what the update actually does that is actually helpful.The 12V lockout recall software (25S65) has been released for all Mach-E's as of today. You can now schedule to have it installed at your dealer if you have a '21-24 vehicle. The update will take the technician about 30 minutes to apply. I've already installed the software on my car, and as expected:
- The charging system will maintain 14.5V for 12 minutes after vehicle shutdown.
- If the 12V battery were to fail while driving, the DC/DC converter will continue to provide power to the door latches through the 12-minute post-shutdown period, allowing unlock and entry/exit.
After the update, you may notice the slight hum of a cooling pump running after driving and parking the car (if it's warm outside). This is normal, it is cooling the DC/DC converter producing the 12V power. If it's cool outside, the vehicle will be silent with no indications the 12V is actively charging. The high voltage system now stays energized during the 12-minute post-shutdown period. After 12 minutes have elapsed, you will hear two successive clunks, which are the main high voltage contactors in the HVBJB opening.
This update will also be beneficial if you drive many short trips (<10 minutes), because you will have additional 12V charging time after shutdown. This will help keep the 12V battery charged up, and covers the load of headlights, screens, and opening/closing doors during the post-shutdown period. Before, all those accessories would drain the 12V battery by about 5-10% after each shutdown.
One important service change—if you are replacing the 12V battery from now on, you will now need to wait at least 12 minutes after the vehicle is shut down before removing the battery terminals. The charging system will remain powered up (and may be silent). If you don't wait 12+ minutes, you could short out the DC/DC converter or blow a mega fuse if the positive cable touches ground, even after removing the negative terminal. Terminal voltage should be less than 13V before removal.
It’s not that the change can’t complete within 12 minutes. The HV to LV converter will be active for 12 minutes after shutdown so the process of disconnecting the battery cannot start until 12 minutes after shut down.Who's gonna replace a 12-volt battery in 12 minutes after the car is shut off? Do people have pit crews in their homes?
I thought the little green switch disconnects the 12V from the DC/DC charger?The 12V lockout recall software (25S65) has been released for all Mach-E's as of today. You can now schedule to have it installed at your dealer if you have a '21-24 vehicle. The update will take the technician about 30 minutes to apply. I've already installed the software on my car, and as expected:
- The charging system will maintain 14.5V for 12 minutes after vehicle shutdown.
- If the 12V battery were to fail while driving, the DC/DC converter will continue to provide power to the door latches through the 12-minute post-shutdown period, allowing unlock and entry/exit.
After the update, you may notice the slight hum of a cooling pump running after driving and parking the car (if it's warm outside). This is normal, it is cooling the DC/DC converter producing the 12V power. If it's cool outside, the vehicle will be silent with no indications the 12V is actively charging. The high voltage system now stays energized during the 12-minute post-shutdown period. After 12 minutes have elapsed, you will hear two successive clunks, which are the main high voltage contactors in the HVBJB opening.
This update will also be beneficial if you drive many short trips (<10 minutes), because you will have additional 12V charging time after shutdown. This will help keep the 12V battery charged up, and covers the load of headlights, screens, and opening/closing doors during the post-shutdown period. Before, all those accessories would drain the 12V battery by about 5-10% after each shutdown.
One important service change—if you are replacing the 12V battery from now on, you will now need to wait at least 12 minutes after the vehicle is shut down before removing the battery terminals. The charging system will remain powered up (and may be silent). If you don't wait 12+ minutes, you could short out the DC/DC converter or blow a mega fuse if the positive cable touches ground, even after removing the negative terminal. Terminal voltage should be less than 13V before removal.
That is the emergency HV disconnect. It’s
Not for charging the battery. Before removing the battery is what I was wondering about. Why do you have to wait 12 min, if you can disconnect the hv system from the 12v via the green switch. Isn’t that a standard procedure anyway?That is the emergency HV disconnect. It’s
Not really intended to be used for routine stuff like changing the 12V battery.
It’s not intended for ordinary purposes, as it was designed and spec’d for emergency situations.
