SSM 53801: 2022-2025 Maverick Hybrid 12V Battery Drain Issue Update Fix Released!

[Long Time FFH Guy]

I see that this affects some of the new 2025 models. I have a 2025 AWD/Hybrid built during week two. Since the 2025 models have Sync 4, including wireless software updates, has anyone heard if Ford would include this update in one of their overnight parked vehicle updates ?

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[johnDeere]

Well this "SSM 53801 2022-2025 Maverick - Hybrid - 12V Battery Drain" may have some merit.
My "new to me" 23 mav. hybrid XLT with 13,000 miles on it now, did it.
I have been trouble free, (truck NOT going into sleep mode) for 4 months, (that is when I purchased it).
I was notified on iphone through the ford Pass app that my mav. was going in to, lets say "load dumping", it turned off the option to start with ford Pass.
It was yesterday 3 hours after parking the truck I received the notice.
I have never had any issues with the "load dumping" or "sleep mode" unless it was a test I did to see how long it would take, and what voltage was the battery.

But yesterday after getting ready to park the truck, I got out and notice that the shutter was open, and the fan was running. The truck was in "ready" mode. (it's a 15 minute drive to work)

I am monitoring the temperature of the engine, transmission, and the battery, and none of the temperatures were high enough for the fan or shutter to be on and open.
This was a first.
After I parked and turned off the truck, I didn't think anything of it, I just though it was odd, and noteworthy.
I did not have the AC on but was using it the day before. (In AC mode the shutter is open and the fan is running no matter what the temperature of the engine, battery or transmission is.

Today it was fine, and my battery voltage is in the range where it been for months.
I still have the original "flooded" battery installed, and monitor the battery voltage and current.
If there is a glitch in the "AC" computer code, this could happen. "shutter open and fan on"
Next time I will be ready.

EDIT:
Just a note.
Normally the shutter are OPEN when you turn off the truck. (This is so the shutter do not freeze in the closed state in the winter time), don't know why it should be open in the summer when the truck is off.
I have "car scanner" on my iphone and it connected to my truck with BT adapter.
I can see it on my truck screen.
I have pump A "engine coolant", pump B "hybrid coolant", shutter open percentage, battery temperature, engine temperature, and transmission temperature, on one screen.

It's the craziest engine, hybrid cooling system logic I have ever seen, "I do controls for a living" .
No wonder they have problems.

 

[MakinDoForNow]

I see that this affects some of the new 2025 models. I have a 2025 AWD/Hybrid built during week two. Since the 2025 models have Sync 4, including wireless software updates, has anyone heard if Ford would include this update in one of their overnight parked vehicle updates ?

Apparently no since the update requires testing the battery, correcting anything if necessary, then placing a charger on the truck and then running the update. I had one update about a year ago on my 22 hybrid done in my driveway and the tech placed charger on my truck. He had to maintain a minimum of 13volts during the update to insure that thee update completed without the possibility if the voltage dropping to a lower voltage that would trigger the load shaving battery saving functions.

 

[HeyBales]

The issue being with ACCM rang a bell - checked my Forscan Lite error logs.

Audio Control Module (ACM) sometimes has an issue communicating.

ACCM very constantly does. U0100. Almost daily.

Get a module in a state where it just wants to finish that communication - it'll keep trying again and again. At least mine ends with error it seems.
Now, if the ECM/PCM is indeed off at a certain point, does the ACCM stay up trying to finish last task?
Don't know - but that's a known way modules cause a parasitic draw, they shouldn't be on but they are. All kinds of fun youtube videos on them.
Explains why SSM used to say disconnect negative battery terminal to reset the system.
I just reset that module, just for grins, to see if communication issue shows up again, and reset the DTC's.

 

[Long Time FFH Guy]

Thanks for the info! I plan on getting its first oil change from the dealer anyway. I’ve heard that the filters are spin on tight on the assembly line. I’ll have them address any TSBs and programs then.

 

[ehauser]

Does anyone know if this is why I get the message from Ford Pass app saying it has been disabled, going into battery protect mode? Also why my passenger door doesn’t unlock with touch on my Lariat?

 

[HeyBales]

Well this "SSM 53801 2022-2025 Maverick - Hybrid - 12V Battery Drain" may have some merit.
My "new to me" 23 mav. hybrid XLT with 13,000 miles on it now, did it.
I have been trouble free, (truck NOT going into sleep mode) for 4 months, (that is when I purchased it).
I was notified on iphone through the ford Pass app that my mav. was going in to, lets say "load dumping", it turned off the option to start with ford Pass.
It was yesterday 3 hours after parking the truck I received the notice.
I have never had any issues with the "load dumping" or "sleep mode" unless it was a test I did to see how long it would take, and what voltage was the battery.

But yesterday after getting ready to park the truck, I got out and notice that the shutter was open, and the fan was running. The truck was in "ready" mode. (it's a 15 minute drive to work)

I am monitoring the temperature of the engine, transmission, and the battery, and none of the temperatures were high enough for the fan or shutter to be on and open.
This was a first.
After I parked and turned off the truck, I didn't think anything of it, I just though it was odd, and noteworthy.
I did not have the AC on but was using it the day before. (In AC mode the shutter is open and the fan is running no matter what the temperature of the engine, battery or transmission is.

Today it was fine, and my battery voltage is in the range where it been for months.
I still have the original "flooded" battery installed, and monitor the battery voltage and current.
If there is a glitch in the "AC" computer code, this could happen. "shutter open and fan on"
Next time I will be ready.

Ohhhhh interesting. I'll need to pay more attention after I park as it's getting warmer.

Be interesting if it stayed on for those 3 hrs until low voltage did both the deep sleep and shut off fan. Which even if the fan on was an issue, at least a failsafe turned it off later.
Compared to double issue, and it never went off until battery drained.

Combined with my ACCM not communicating with ECM/PCM (which I could see being the controller of said fan) - some interesting combos.

 

[HeyBales]

Does anyone know if this is why I get the message from Ford Pass app saying it has been disabled, going into battery protect mode? Also why my passenger door doesn’t unlock with touch on my Lariat?

I don't think so.

You are getting those from inadequetely charged battery.
You'll find so many threads on that.
Also, might want to screen shot the Fordpass notice - Deep Sleep mode, Battery Saver, or really battery protect which might be new one.

 

[JJTech]

Is it possible to apply this update manually with ForScan? I’ve got a 2025 Hybrid built 01/2025;
I checked and it’s not offered via the OTA updates page (last update was a TCU update in April)

 

[BlueSpec1]

Is it possible to apply this update manually with ForScan? I’ve got a 2025 Hybrid built 01/2025;
I checked and it’s not offered via the OTA updates page (last update was a TCU update in April)

Don't think module software updates can be applied with Forscan from what I've read:
https://www.macheforum.com/site/thr...ach-e-with-fdrs-alternative-to-forscan.10217/

 

[NedF]

Does anyone know if this is why I get the message from Ford Pass app saying it has been disabled, going into battery protect mode? Also why my passenger door doesn’t unlock with touch on my Lariat?

If you are referring to the 12V drain issue as the reason for the messages in the Ford app and the keyless entry not working on the passenger door then yes, very likely.

After I put a new AGM battery into my truck the keyless entry on the passenger door started working again as did a lot of other things like reverse lights coming on and staying on when the truck was unlocked or while exiting, dome lights etc, etc, etc.

 

[How15]

SSM 53801 2022-2025 Maverick - Hybrid - 12V Battery Drain - Built On Or Before 17-Feb-2025

Some 2022-2025 Maverick vehicles with a hybrid powertrain and built on or before 17-Feb-2025 may exhibit a 12V battery drain. This may be due to the software installed in the air conditioning control module (ACCM). To correct this condition, perform a battery condition test as outlined in Workshop Manual (WSM), Section 414-01 Battery, Mounting and Cables > Diagnosis and Testing > Pinpoint Test A. Service the battery as necessary. Connect a battery charger such as Rotunda GRX-3590 or DCA-8000 to the 12-volt battery. Download and run the "air conditioning control module (ACCM) software update" application in the Ford Diagnosis And Repair System (FDRS) scan tool. If the battery was replaced, download and run the "BCM-reset the battery monitoring sensor learned values" application in FDRS. For claiming, use causal part 19703 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.

They have coded the causal part number to the a/c compressor, so it will be covered 3/36, and I already checked and it is covered under Ford Premium ESP also...(not sure about the other level contracts)

Next will be why my truck locked me out while I was getting gas. A message ran across my screen, didn't catch it, then the locks happened. Have a 23 that has the outside buttons which wouldn't open the truck, window was down lucky but when I tried the inside button nothing happened. I could reach the keys laying on the console and had to put them in the ignition to get the truck unlocked. Hope this doesn't happen again.

 

[jeffrol48197]

My 3/36 ended earlier this week. Am I understanding that even though this is a software update, that they just now released a fix for, I'm SOL?

I would call Ford and talk to CSM, and see if they can do anything to help - once past 3 years or 36,000 miles any claim a dealer would submit would be rejected...

 

[Eklipse]

I would call Ford and talk to CSM, and see if they can do anything to help - once past 3 years or 36,000 miles any claim a dealer would submit would be rejected...

If it was a normally functioning part that failed after 3/36, I have no problem accepting that it wouldn't be covered.

It seems entirely different if they produced and sold something that was never functioning correctly, was identified as being an issue many months ago while still under warranty, but didn't release a fix in a timely manner, until after the warranty period was over.

 

[jeffrol48197]

If it was a normally functioning part that failed after 3/36, I have no problem accepting that it wouldn't be covered.

It seems entirely different if they produced and sold something that was never functioning correctly, was identified as being an issue many months ago while still under warranty, but didn't release a fix in a timely manner, until after the warranty period was over.

I am in the exact same boat as you, my warranty expired 4 months ago, even though I only have 19,700 miles now, I have to pay my deductible to get updates done under my ESP - I am just trying to explain from the dealer POV -- I really think Ford should take care of this program under warranty, since was so well known for what, like 6 months, that it was coming -- IMHO they should have made it a P program which is a no-charge FSA or what most people call recalls (P programs normally expire at a certain date or mileage though...)

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