PT-25.8.5 : Charge Port Functionality & Cold Weather Performance

[christooma]

Slightly annoying, but slowly becoming more and more annoying every time it happens.

I only charge at one location, home, so I can only imagine how more annoying it is for people with multiple charge locations to have to redo them.

They ought to require programmers to actually USE the things they are updating, then maybe they'd have a clue?

Brian from Ford responded on the other PT thread (a different version number but the same package). See below for what happened and why this should be the last time:

Hi folks,

Jumping in here because I know how annoying it is to hop in the truck and realize your charge settings have vanished. I grabbed some time with the engineering team to understand what has happened.

Here is the lowdown:

The powertrain update is doing some housekeeping behind the scenes to make your stored settings more resilient during future updates. The catch? The system can clear current settings in the process. I know it’s a hassle to set them back up (it’s definitely not my favorite hobby either), but the good news is that once you do the team has said that they shouldn't be affected by future updates.

The update is rolling out now to 2022/2023 trucks with a version for 2024s coming in the future.

Thanks for bearing with us!

- Brian (not AI) from Ford

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[Maquis]

Just like some other folks, mine will NOT update this PT-25.8.5. Always getting the Low Battery message. Been hooked up to the battery maintainer overnight. Battery showing full. Try to initiate the install manually. No go. Battery too low message. Getting real tired of this crap. All doors closed, frunk closed, no accessories plugged in, etc.

If you still have the original battery, it’s time to replace it.

 

[Docmaverick]

If you still have the original battery, it’s time to replace it.

Yes, it is the original. Gonna look into replacing it now. Thx

 

[bmwhitetx]

I mistakenly had my 12v charger hooked directly to the battery instead of the connection points on the right side of the frunk.

It's perfectly fine to connect the charger in the battery compartment (easier) but as I mentioned, you MUST be downstream of the BMS. I posted a pic here.

I have used these connection points many times to get through updates that fail with low voltage.

 

[bmwhitetx]

Yes, it is the original. Gonna look into replacing it now. Thx

Might also try running the the truck for 6 hours tomorrow in the evening before the 1 am update. Keep the maintainer on as well.

 

[chl]

Brian from Ford responded on the other PT thread (a different version number but the same package). See below for what happened and why this should be the last time:

Oh that's good news for a change! Thanks for the update.

 

[chl]

Yes, it is the original. Gonna look into replacing it now. Thx

BTW, I've had my 2012 Nissan Leaf 12v AGM on a maintainer since Feb 2012, still alive and kicking 13 years later.

Lead-acid batteries will last a lot longer if on a maintainer as often as possible - they prefer to be at 100% and topped off after being discharged so the sulfates don't become permanent using a gentle charging current so they are not heat stressed leading to loss of electrolyte through venting.

Look for one with an AGM mode.

 

[Docmaverick]

In case Ford does not want to replace my 12v battery under warrenty, is there any pre or post op that needs to be done if I replace it myself? After the new battery is installed, any procedures to follow?

 

[chl]

In case Ford does not want to replace my 12v battery under warrenty, is there any pre or post op that needs to be done if I replace it myself? After the new battery is installed, any procedures to follow?

Yes you have to reset the BMS which goes like this if I have it right:

LVB BMS reset

Make sure 12v battery is fully charged (drive an hour, or after an hour actively charging the HVB)
Start Accessory mode
flash high beams 5 times
step on brake pedal 3 times
red battery icon on dash should flash 3 times

If the dealer changes the 12v battery, they should do this, but they don't always. If they plan on keeping it overnight, there is a good chance they will - Just ask when you pick it up.

 

[Docmaverick]

Yes you have to reset the BMS which goes like this if I have it right:

LVB BMS reset

Make sure 12v battery is fully charged (drive an hour, or after an hour actively charging the HVB)
Start Accessory mode
flash high beams 5 times
step on brake pedal 3 times
red battery icon on dash should flash 3 times

If the dealer changes the 12v battery, they should do this, but they don't always. If they plan on keeping it overnight, there is a good chance they will - Just ask when you pick it up.

Ok, thought I would have to reset the BMS. Done that before for another problem I had. Thanks!! Will call the dealer now.

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