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PCM recall 26E01

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Old Mar 16, 2026 | 05:43 PM
  #16  
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Originally Posted by Tsax6010
Completed this last Wednesday - about 40 minutes for the mobile tech. He said both the PCM and TCM get updates. No noticed impact or change yet driving around town. I will be towing in a week or so and am crossing my fingers it included the update to also fix diesel gauges not available when a trailer is connected...
I took my truck in back in April 2025 for TSP25-2083. They reprogramed PCM, BCM, IPC, SOBDMC, TCM and GWM. My diesel gauges have worked as expected ( when trailer connected) since then. The blank gauges can be trigged without connecting a trailer BTW. Just set in tow/haul mode, and start using the NAV. At least that is when my diesel gauges blank screens. Cancel NAV and the gauges are back. Start NAV, gauges go blank.
 
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Old Mar 17, 2026 | 10:33 PM
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Originally Posted by weenerdog
Anyone able to get into engineering test mode? Not working for me...
Didn't work on my 2026 F550 either. Recall 26C10 ( Trailer Module TRM) shows up as an active recall as of today. March 17th and " appears" that it might be resolved with an OTA update. Does anyone know how to confirm the update has been completed?
 
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Old Mar 18, 2026 | 05:23 AM
  #18  
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Originally Posted by AZJW
Didn't work on my 2026 F550 either. Recall 26C10 ( Trailer Module TRM) shows up as an active recall as of today. March 17th and " appears" that it might be resolved with an OTA update. Does anyone know how to confirm the update has been completed?
The Ford app will show the last update run OTA
 
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Old Mar 18, 2026 | 07:28 AM
  #19  
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Originally Posted by Tsax6010
The Ford app will show the last update run OTA
Thanks, but where would that information be located? I should've clarified that my version (v6.8.0 - 2023331) of the Ford App only shows Software updates On/Off, not if any updates are available or if a particular update has been added. My question really should be worded, how long does it take for the update to appear and where on the App or Ford Sync 4 screen it would be recorded.
 
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Old Mar 18, 2026 | 07:34 AM
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Originally Posted by AZJW
Thanks, but where would that information be located? I should've clarified that my version (v6.8.0 - 2023331) of the Ford App only shows Software updates On/Off, not if any updates are available or if a particular update has been added. My question really should be worded, how long does it take for the update to appear and where on the App or Ford Sync 4 screen it would be recorded.
This section only shows in the app after the first OTA has taken place. Unfortunately there is no rhyme or reason to how long it takes from release to when your particular vehicle will apply an update - I have gotten some of them many months after first hearing users report about their existence, and some I am still waiting for after half a year. Ford's rollout strategy seems to be very slow, maybe to avoid bricking too many vehicles at once.



 
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Old Mar 18, 2026 | 07:57 AM
  #21  
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Originally Posted by Tsax6010
This section only shows in the app after the first OTA has taken place. Unfortunately there is no rhyme or reason to how long it takes from release to when your particular vehicle will apply an update - I have gotten some of them many months after first hearing users report about their existence, and some I am still waiting for after half a year. Ford's rollout strategy seems to be very slow, maybe to avoid bricking too many vehicles at once.


Thanks for the screenshot. Here's what mine shows so it appears no updates have been received.


 

Last edited by AZJW; Mar 18, 2026 at 08:01 AM.
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Old Mar 18, 2026 | 12:52 PM
  #22  
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Originally Posted by chadstickpoindexter
I see the NHTSA reported "26V104" generated on 2/20/26 which is for the trailer modules, but for some strange reason only included the F250 F-Series trucks. This document also notes the manufacturer recall number as "26C10".

And here is an article on the "26C10" recall from Ford generated on 2/26/26 which is the same recall as above, but it now includes all F series trucks from the F250 - F600... which makes sense since the hardware is all the same, at least in the 250's and the 350's. I wouldn't imagine it would be different in the rest of them either.

The only "26E04" information I see is the AI generated response posted in the OP's post, and now CBEllis's post. There is nothing I can find about "26E04" on the NHTSA site though...

I just checked my app and the only recall I have is the old 22E04 update for my 22 F250, built in September 2021, so my truck falls in the time line for the trailer module recall dates. I went ahead and made a mobile service appointment to have that update done next week... I have been reluctant to have it done, and I may change my mind before then... we'll see. But no recall for either the 26E04 or the 26C10 yet. Maybe it will show up later? I guess I need to go ahead and get another Forscan trial membership again that way if I do have any of them done I can put my settings back after...
26E01 just flagged for my VIN, a 2024 F450, so the reports excluding 350/450/… are inaccurate.
Has anyone who’s received the OTA update taken note of the version number? For example, my last OTA was tagged as TCU-25.2.8.5, presumably the recall will be tagged starting with something like PCM- or ITRM-
 
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Old Mar 18, 2026 | 01:18 PM
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Originally Posted by Gladstone
26E01 just flagged for my VIN, a 2024 F450, so the reports excluding 350/450/… are inaccurate.
Has anyone who’s received the OTA update taken note of the version number? For example, my last OTA was tagged as TCU-25.2.8.5, presumably the recall will be tagged starting with something like PCM- or ITRM-
Mine is a 24 450 as well. The recall is not OTA unfortunately. It was a 40 minute flash the dealer had to perform with FDRS. I can look at the paperwork tonight but I don't remember a version showing on the sheet.
 
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Old Mar 18, 2026 | 01:43 PM
  #24  
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Originally Posted by Tsax6010
Mine is a 24 450 as well. The recall is not OTA unfortunately. It was a 40 minute flash the dealer had to perform with FDRS. I can look at the paperwork tonight but I don't remember a version showing on the sheet.
That's the crazy thing... when these (26C10) recalls for the brake controllers originally came out they called for a simple OTA update (if your truck can receive OTA updates). That's why it surprised me that not only did they flash your PCM but also your TCM. There seems to be more to this update than just a brake controller malfunction...

My truck is a 22, but it falls in the time frame for the brake module recall, however, this recall has still not shown up in my Ford app. I am ok with that too, but I wonder if it is just coming later. And since I have Sync3, I knew that mine wouldn't be fixed under an OTA update... but if they are reflashing all of these modules, I don't think I want to let them do this recall either if it shows up. There is still very limited official information about this 26E01 recall, other than stating it is a PCM software update and in post #4 of this thread it shows it is an emissions update. It sounds like the emissions 26E01 is just getting lumped in with the 26C10 brake controller recall with no explanation. In which case, I don't want that... that's why I still haven't done the 22E04 recall...
 
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Old Mar 18, 2026 | 01:51 PM
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I would take the TCM with a grain of salt, as it is just the young mobile dealer tech that told me that. I have no good way to validate it.
 

Last edited by Tsax6010; Mar 18, 2026 at 02:27 PM.
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Old Mar 18, 2026 | 02:26 PM
  #26  
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Scheduled a mobile tech for next week to take care of the 2 recalls (26E01 and 26C10). I honestly didn't know that was an option until I read it here. Not gonna wait for the OTA if it's really an option since the weather's getting better and camping season is approaching.
 
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Old Mar 18, 2026 | 04:19 PM
  #27  
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Here is an interesting thread over on the Tremor forums about the confusion all of these recalls are causing. There is even talk of another recall (25E06) being issued to those with gassers, which also shows that it is emissions based... So there are actually 3 codes right now that seem to be getting clumped together and causing some confusion...
  1. 26C10 which is the trailer controller module update that should be available as an OTA to those that can get them.
  2. 26E01 which is an emissions recall that seems to be getting issued to those with the 6.7 and requires a PCM reflash.
  3. 25E06 that is also an emissions recall that seems to be getting issued to those with gassers and also requires a PCM reflash.
I do find it interesting that there is very little information about what these emissions recalls are actually doing... and that gives me reason not to trust them or want them. But it seems that Ford/dealerships have been slipping those updates in at the same time as the brake controller recall, which would also explain why the PCM and TCM would also get refreshed.

Reading through that thread on the Tremor site too one guy stated that a mobile tech was at his house for another reason and said this about the emissions update:

Stricter emissions, advised I leave the truck the way it is.
So, for those getting these done, I would want to know exactly what they are doing and why...
 
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Old Mar 18, 2026 | 08:38 PM
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My dealer said this recall is paused and they can't do it while my truck is in the shop tomorrow... who knows what the truth is.
 

Last edited by 09FX-4; Mar 19, 2026 at 07:18 AM.
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Old Mar 18, 2026 | 08:47 PM
  #29  
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Issue Date

2026-03-18

Campaign
26C10/26V104

I received this message today in the Ford Pass app for my 2024 7.3l. I have automatic updates turned on so it may update on its own. If not I’ll try to prompt it to update when I get home this weekend.
 
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Old Mar 19, 2026 | 08:29 AM
  #30  
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Originally Posted by chadstickpoindexter
Here is an interesting thread over on the Tremor forums about the confusion all of these recalls are causing. There is even talk of another recall (25E06) being issued to those with gassers, which also shows that it is emissions based... So there are actually 3 codes right now that seem to be getting clumped together and causing some confusion...
  1. 26C10 which is the trailer controller module update that should be available as an OTA to those that can get them.
  2. 26E01 which is an emissions recall that seems to be getting issued to those with the 6.7 and requires a PCM reflash.
  3. 25E06 that is also an emissions recall that seems to be getting issued to those with gassers and also requires a PCM reflash.
I do find it interesting that there is very little information about what these emissions recalls are actually doing... and that gives me reason not to trust them or want them.
For 26E01, what are the chances that it’s an update to remove limp mode if DEF is depleted in a remote area? I’d class that as both emissions and safety related.
 
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