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

[johnDeere]

I don’t know if this pertains to the battery drain maybe caused by the AC computer. Has anyone noticed the orange lights on the fan speed and temperature knobs change in brightness. (They would change in brightness for a second or two).

I checked with forscan to see if there any faults, and no errors.


I also checked to see if they were changing because the head lights were coming on, and nope, that’s not it.

23 Mav. Hybrid xlt. 13,000 miles.

I just had my second message from ford pass saying going into sleep mode in a week.
So something is going on that’s new to my truck since last week.
Just load tested my battery again, I did four 30sec of 80amp load test, and it passed. I did the same load test in January and it passed just like this May test.

I checked with forscan to see if there any faults, and no errors.
I did some other tests with forscan, and everything tested fine.
I rebooted some of the controllers,
that may have something to do with the battery drain.
it looks like I will need to keep a better eye on my amp meter.

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[HeyBales]

I don’t know if this pertains to the battery drain maybe caused by the AC computer. Has anyone noticed the orange lights on the fan speed and temperature knobs change in brightness. (They would change in brightness for a second or two).

I checked with forscan to see if there any faults, and no errors.

I also checked to see if they were changing because the head lights were coming on, and nope, that’s not it.

23 Mav. Hybrid xlt. 13,000 miles.

I just had my second message from ford pass saying going into sleep mode in a week.
So something is going on that’s new to my truck since last week.
Just load tested my battery again, I did four 30sec of 80amp load test, and it passed. I did the same load test in January and it passed just like this May test.

I checked with forscan to see if there any faults, and no errors.
I did some other tests with forscan, and everything tested fine.
I rebooted some of the controllers,
that may have something to do with the battery drain.
it looks like I will need to keep a better eye on my amp meter.

Since the Amps to the 12V system and the 12V are separate - you've probably seen the PIDS for DCDC Low vs 12V Battery, wouldn't be surprised if higher power to some circuits caused that.

Someone commented on seeing their D in PRNDL shine brighter, and I caught it one day.
Thought it was related to running sport mode at the time, but couldn't get it to happen again while I was watching better, wasn't related to anything I'd just done. But there is a whole lot more regen and charging going on in that mode.

You have no ACCM DLC in the Error list in Forscan?

Sadly what's new with the truck is the battery is probably reaching some new lows with resting Voltage. Likely will get worse from here, should get a new battery out of it.

While there is a PID for SOH - I have no value shown in it, so I don't think actually tracked.
So while your battery tests well for SOH with tester, probably stinks for SOC.
I'm 100% SOH, 11% SOC, with a tester.

Deep Sleep brought on (according to an SSM) at 14 days non-start, below 50% SOC, or 9.5 V or below.

Considering how many have Fordpass message 30 min after parking - either they got a parasitic drain on that stop, or more likely there is a timeout to decide how low the V really is, because right after driving and charging isn't accurate. Your experience was 1st that made me think perhaps other posters had a fan running and just not noticed.

I also don't think it's the PID value of SOC - because I've been below 50% on morning startup when cold - and never got the message in Fordpass. Maybe recent BCM update changed some of those limits.

You should add the PIDS for Cum (search for that) - should be 4 of them. I think that's used more. Seems to be AmpHrs into and out of battery. I'm always on negative side.

 

[skinnyboy]

That's interesting. What would the units be of the cumulative charge/discharge measurements?

Cheers.

 

[MakinDoForNow]

That's interesting. What would the units be of the cumulative charge/discharge measurements?

Cheers.

Whatever the Units are (presumably AH?) it appears that the ignition on replacements did not include the draws that happened during the sleeping?

 

[Master Blaster]

. . .
Deep Sleep brought on (according to an SSM) at 14 days non-start, below 50% SOC, or 9.5 V or below.
. . .

Your numbers are waay off. 50% charge in an EFL battery is roughly 12.0V, and about .1V more on an AGM one. Your 9.5V reading is well below 10.5V that is normally considered to be 0% charge on either battery type.
There is something wrong with your tester.

 

[MakinDoForNow]

Your numbers are waay off. 50% charge in an EFL battery is roughly 12.0V, and about .1V more on an AGM one. Your 9.5V reading is well below 10.5V that is normally considered to be 0% charge on either battery type.
There is something wrong with your tester.

He is referencing what is stated in a FORD SSM. Note also that many reference Battery Save happening at 12.1 volts as sleeping but Ford Sleeping actually occurs at less than 9.5v possibly even less. Apparently the EFL can actually start the hybrid down to the 9.5v without assistance. I had my OEM replaced which was starting mine with a bad cell while reading 10.1 volts. Finally got dealer to put my mav on the overnight charge/wait/tester.

 

[icegradner]

I haven't looked through all these posts, but I wonder how this being only an SSM, vs a recall or customer satisfaction program, will effect people who are out of bumper to bumper warranty already? I guess it means those people would be paying for this out of their own pocket? Seems bonkers considering Ford's had three years to figure this out now.

Edit: Went through everything, this topic has been discuses already. I'm just glad I have the extended warranty. I have a feeling that even this will not be the end of the deep sleep issues with the hybrid.

 

[TheSEARCH]

I haven't looked through all these posts, but I wonder how this being only an SSM, vs a recall or customer satisfaction program, will effect people who are out of bumper to bumper warranty already? I guess it means those people would be paying for this out of their own pocket? Seems bonkers considering Ford's had three years to figure this out now.

Edit: Went through everything, this topic has been discuses already. I'm just glad I have the extended warranty. I have a feeling that even this will not be the end of the deep sleep issues with the hybrid.

Yea I guess what I will do is copy and paste this SSM to dealer to see if they are willing to do it? Not sure if they have to or not? I am still under 3-36 warranty period. But if not a recall do they HAVE to do it? I have no clue on how ford dealers work in things like this,

 

[icegradner]

Yea I guess what I will do is copy and paste this SSM to dealer to see if they are willing to do it? Not sure if they have to or not? I am still under 3-36 warranty period. But if not a recall do they HAVE to do it? I have no clue on how ford dealers work in things like this,

We cannot force a dealership to do anything, but we can request them to look into it anyway. If one dealership won't do it, we can always try another one I suppose. For some people that would be a problem, but thankfully in an urban area like I am there are around 8-10 different Ford dealers within an hours drive.

Usually the dealer will want paid service, like an oil change, to get warranty work done, but I'm not willing to wait. The factory 3 year warranty is up in mid-July and I won't need service until the fall at the earliest. The service guys at my dealership warned me that even with the Ford extended warranty, it's like pulling teeth to get them to honour it sometimes.

 

[MakinDoForNow]

Yea I guess what I will do is copy and paste this SSM to dealer to see if they are willing to do it? Not sure if they have to or not? I am still under 3-36 warranty period. But if not a recall do they HAVE to do it? I have no clue on how ford dealers work in things like this,

If your truck has the symptoms mentioned in the SSM the same allows them to do if while proving those symptoms.

 

[CD_SM]

Out of all the things we suspected...I don't think anyone has AC on their mind.

Agree.
In retrospect it checks out for my truck at least. I rarely use the AC, and both times my truck went into battery daver mode wer after my wife drove it, and she virtually never drives any car without the A/C on.

 

[surfstar]

Huh.
New test:

Turn off A/C and HVAC prior to turning off truck and maybe no deep sleep?
I've had DS a few times, first was triggered due to body shop work - no surprise, sitting for a longer time, but nothing lately. Maybe I turn off my A/C and or HVAC often enough? I usually do...

 

[CD_SM]

Huh.
New test:

Turn off A/C and HVAC prior to turning off truck and maybe no deep sleep?
I've had DS a few times, first was triggered due to body shop work - no surprise, sitting for a longer time, but nothing lately. Maybe I turn off my A/C and or HVAC often enough? I usually do...

I turn the HVAC off reflexively before I exit my truck. Actually I do that with all my cars, always.

 

[TheSEARCH]

I turn the HVAC off reflexively before I exit my truck. Actually I do that with all my cars, always.

Interesting. I have the battery going dead mostly in the winter. I charge it monthly so it doesn't go dead but do lose dome lights and battery warning oh phone ap. . . I always leave the HVAC on during winter. BUT in summer rarely use AC so the HVAC is almost always turned off summer time and don't have the battery issue. I assumed because I drive more in the summer that was why no battery issue during summer time. .

 

[Sim_S]

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)

Wow! That didn’t take long !

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