FordPass will not update

[Ed21]

I have the same problem since updating the app on 9/19. Or should I say downdating.

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[CowboyJohn]

Well after leaving everything unplugged over night, I stopped at a spot that has great cell reception and still no go.

I uninstalled and reinstalled the app, restarting my phone after removal and will try again on my way home unless the dealer can help me.

The dealer I took it to is on my way home, so I'll stop by and see what they say.

When I look at their notes from last week, it does say they were able to get the app to work with one of their personal phones.

They also show they found Code: TCU U211B:51:0B Control Module Message Authentication

They also show it had SSM 53759 and to run the FDRS "Trusted Real-Time Operation Network (TRON) Module Authentication" procedure. After they ran the procedure it still worked on their phone. They also state that the code was cleared from the TCU after a self test.

I don't know what all that means. Maybe it is a setting on my phone.

Hopefully I'll have an answer/solution this afternoon after I visit the dealer.

 

[Ed21]

Mine was basically done after the app updated on 9/19. Also if I pull down on the app to refresh I just get the eternal spinning wheel.

 

[Ed21]

Version 5.28.0

 

[CowboyJohn]

I had time on my lunch break to go to the dealer. Service manager came out and looked it over and tried to get it to connect. Still no bueno.

I'm gonna try the tech support number I got last night before I take it back in and have a service technician look at it. It could be that I have to be at the dealer with my phone or leave my phone with them if I don't get a solution from tech support.

 

[JohnTrigger]

TRON is a thing on 2024 and later models of the F150. It is basically, as I understand it, a secure interface communications network protocol between some of the computer modules on the truck. It’s in the GWM, IIRC. Maybe the updated TCU firmware needed to get on the “same decoder ring” after the OTA update. Hopefully them running TRON got you back in business.

 

[rugedraw]

They also show they found Code: TCU U211B:51:0B Control Module Message Authentication

The TCU update you got broke the TRON encryption. I've seen if happen countless times on 2024/2025 F150s that use TRON on certain modules within the network. The dealer can fix it in minutes.

Just re-read your post and see they supposedly ran TRON authorization. Message me the VIN and I can check if the code is gone or not. Sometimes you have to run the TRON procedure several times for it to actually take.

 

[rugedraw]

@hpwjr Your truck being a 2023 does not have TRON. Message me the VIN if you're still having issues and I'll look for anything helpful.

 

[JohnTrigger]

Here is the SSM 53759 about TRON for 2024+ trucks:
https://static.oemdtc.com/NHTSA-PDFs/MC-11018238-0001.pdf

 

[CowboyJohn]

Okay the Tech number I was given last night is for dealer issues.

They did put me on with Tech Support from Ford Pass again and after trying a reset etc... I was finally told that this is a known issue with SYNC and that it is currently being worked on with no solution as of yet.

I was also told that my modem is not responding, but the fix would be pushed out with an OTA and that I should still be able to get the OTA. I'm not sure how that will be possible, but I guess I'll see.

She said a statement (Service Bulletin?) was released on Aug. 29 about the issue.

I asked how many or what year models were affected, but she didn't have that info.

So I guess it's wait and see.

 

[rugedraw]

Okay the Tech number I was given last night is for dealer issues.

They did put me on with Tech Support from Ford Pass again and after trying a reset etc... I was finally told that this is a known issue with SYNC and that it is currently being worked on with no solution as of yet.

I was also told that my modem is not responding, but the fix would be pushed out with an OTA and that I should still be able to get the OTA. I'm not sure how that will be possible, but I guess I'll see.

She said a statement (Service Bulletin?) was released on Aug. 29 about the issue.

I asked how many or what year models were affected, but she didn't have that info.

So I guess it's wait and see.

That's nonsense. There is only one OTA that has even been sent out to fix connectivity and that was to fix an issue where a TCU update changed the country code from US to another country rendering the modem useless, and wifi (or fixing it yourself with FORScan) was the only way to get that update/fix. The country code in your TCU is correct for the US; I had already checked that jic. They are clueless and talking out of their ass.

 

[CowboyJohn]

I kinda thought that too. I think the service dept. may have been blowing smoke up my ass when they noted on the invoice that they got it to work on their phone. The invoice details also said it was working on my my phone as well. I didn't leave my phone with them, however that could be because I picked it up at closing time and the service manager had already left for the day. I'll wait a few days just in case and then probably make another appt.

 

[SemperVee]

Found out customer service talks BS often. Having a fully charged battery solved my software over the air problems.

 

[Dougpaw57]

I was having problems where I couldn't lock/unlock doors or remote start using phone. I uninstalled fordpass app many times, no help. The I did a total sync system reset, and reinstalled the ford pass app. Now everything works.

 

[CowboyJohn]

I stopped by my dealer again today and spoke to the technician that worked on it last Thursday. Evidently I misunderstood his notes. He did not get the Ford Pass to work on his phone, he was able to get Apple Play etc... to work. Which in my understanding is through Blue tooth, not the modem.

He said that the TCU houses the components that run most of the wireless functions including the modem. My guess is the module for the modem is bricked.

I wonder if it is related to this:

I also assume this is what the Help technician was referring to. I can't find a date of release.

SSM 54090 2021-2025 Various Ford/Lincoln Vehicles - SYNC4/Digital Experience - Unsuccessful TCU Software Update Or Software Activation During The USB Update

Some 2021-2025 Ford and Lincoln vehicles equipped with SYNC4/Digital Experience may exhibit an unsuccessful telematics control unit module (TCU) software update or software activation during a universal serial bus (USB) update. This may be due to the vehicle connectivity setting being disabled. To correct this condition, enable vehicle connectivity in the vehicle center display, select Settings > Connectivity > Connected Vehicle Features > Vehicle Connectivity > Toggle ON. Perform the update. If the condition persists, follow the normal dealer internal escalation process. After the update is complete, toggle the connectivity OFF in the vehicle center display, select Settings > Connectivity > Connected Vehicle Features > Vehicle Connectivity > Toggle OFF. NOTE: If the vehicle comes in with the connectivity settings disabled, connectivity must be returned to the disabled setting before releasing the vehicle to the customer.

This link has TSB's etc... that may apply to my VIN:
https://www.ford.com/support/service-information/

I think I'll take this info. to my dealer and see what they think and try to push for a new TCU.

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