Deep Sleep Fix Not Released

[ZABSMAV]

Ford has just blown past another self-issued deadline and has NOT released a guaranteed fix for the deep sleep problem that almost everyone with the hybrid Maverick is experiencing. They initially said they would have a solution by the end of the first quarter of 2025 (March 31) and then moved the goal post to the end of the second quarter (June 30). Well, that has now passed as well with NO announcement of a final PERMANENT fix to the deep sleep problem.

They released an SSM that said the "some" maverick hybrids "may" be experiencing a parasitic battery drain from the AC Module, and a software update "may" correct that. Enough is enough Ford. Stop throwing spaghetti at the wall hoping something will stick.

I am beginning to believe they are completely incapable of solving this problem since they have had the 2022 through 2025 model years to solve it. Incompetency and not keeping their commitments must now be "Job One" at Ford.

Ford engineering department:

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[HeyBales]

They never gave a deadline for fixing deep sleep issues.
Or rather the issue of low battery charge level that kicks that mode off.

The SSM that ended up being the ACCM software update as solution - was always an intermittent battery drain issue.

Everything else heard and talked about was rumor and myth based on that SSM.

I said last year that SSM was not what everyone claimed it would be. But I hoped I was wrong.
I wasn't.

I think they are totally in the headspace there is no problem - they probably know it's not great - but it's acceptable to them.

How many dealerships when they deal with the issue report it up the line?
All Ford sees is a bunch of tech time spent testing batteries that end up being fine (in their mind above 40% SOC), until some aren't.

I'm sure the data upload to Ford on each start includes battery resting voltage & estimated SOC%, cumulative charge & discharge figures, and sleep mode peak drain.

Until Ford corp feels the financial sting of it - nothing will be done.
Will dealerships start charging Ford for testing the battery under warranty, when the truck already starts? Or does that fall under some 3/36k warranty bucket for checking on items?

 

[ZABSMAV]

They never gave a deadline for fixing deep sleep issues.
Or rather the issue of low battery charge level that kicks that mode off.

The SSM that ended up being the ACCM software update as solution - was always an intermittent battery drain issue.

Everything else heard and talked about was rumor and myth based on that SSM.

I said last year that SSM was not what everyone claimed it would be. But I hoped I was wrong.
I wasn't.

I think they are totally in the headspace there is no problem - they probably know it's not great - but it's acceptable to them.

How many dealerships when they deal with the issue report it up the line?
All Ford sees is a bunch of tech time spent testing batteries that end up being fine (in their mind above 40% SOC), until some aren't.

I'm sure the data upload to Ford on each start includes battery resting voltage & estimated SOC%, cumulative charge & discharge figures, and sleep mode peak drain.

Until Ford corp feels the financial sting of it - nothing will be done.
Will dealerships start charging Ford for testing the battery under warranty, when the truck already starts? Or does that fall under some 3/36k warranty bucket for checking on items?

Ford did make an official commitment that they would release a solution for the deep sleep battery problem by the end of the first quarter of 2025. This expectation stemmed from Special Service Message (SSM) number #53087, which said Ford would have a fix scheduled for Q1 2025.

That Q1 2025 deadline was not met. Ford later stated it would then, instead, be available by the end of June, but as of July 1, 2925, the solution still hasn't been announced.

The most recent information, specifically from April 17, 2025, indicates that Ford engineering was still working on a software solution for the intermittent 12V battery drain that affects some 2022-2025 Maverick FHEV models built on or before February 17, 2025.

A "possible" part of the problem was supposedly addressed in an SSM about a "possible" paracytic current drain that may affect "some" Maverick hybrids. There have been a number of owners now reporting on forums that, despite having had the software update done, they are still having their vehicle suffer from the deep sleep problem.

The reason there was the expectation that a fix would arrive by the end of Q1 2025 was based on a Special Service Message (SSM 53087) wherein Ford said they would release a solution for the deep sleep problem in the first quarter of 2025. That initial deadline was not met. Ford revised the timeline to the end of June, but a solution has yet to be announced. That was based on a new SSM (53648) published in April 2025 superseded the previous one and it stated that a software solution was expected in the second quarter of 2025 for some Maverick models built before February 17, 2025.

What they released in that ACCM (AC Module) SSM was something that they said "may" help in "some" vehicles for a "possible" paracytic current drain. This was not announced as a universal solution for deep sleep problem.

Ford has not released a definitive fix, and the expected timeframe for a solution that they extended to the end of Q2 2025 has not materialized.

 

[HeyBales]

Show me where anything from Ford that says deep sleep in those notices.

Part of the rumor mill.
Which just keeps people waiting instead of bothering dealers enough they bother Ford enough.

 

[ZABSMAV]

Show me where anything from Ford that says deep sleep in those notices.

Part of the rumor mill.
Which just keeps people waiting instead of bothering dealers enough they bother Ford enough.

FROM FORD:

Special Service Message (SSM) #53087 for some 2022-2024 Ford Maverick vehicles with the 2.5L full hybrid powertrain addresses an intermittent 12V battery drain when the ignition is off. This can lead to battery failure, particularly in vehicles parked for extended periods.

Ford recommends that dealerships perform steps like a 12V power reset, fully charging the battery, and checking if the battery needs replacement. If a replacement is necessary, the new battery should be fully charged and a Battery Monitor Sensor (BMS) reset performed.

Ford Engineering is developing a software solution, anticipated in the first quarter of 2025, and dealers are advised to monitor OASIS for updates

 

[Ranch]

FROM FORD:

Special Service Message (SSM) #53087 for some 2022-2024 Ford Maverick vehicles with the 2.5L full hybrid powertrain addresses an intermittent 12V battery drain when the ignition is off. This can lead to battery failure, particularly in vehicles parked for extended periods.

Ford recommends that dealerships perform steps like a 12V power reset, fully charging the battery, and checking if the battery needs replacement. If a replacement is necessary, the new battery should be fully charged and a Battery Monitor Sensor (BMS) reset performed.

Ford Engineering is developing a software solution, anticipated in the first quarter of 2025, and dealers are advised to monitor OASIS for updates

So battery failure is the issue?

 

[Master Blaster]

So battery failure is the issue?

Early battery failure. Most are seeing their batteries with an expected life of 5-8yrs fail after 6-18mo, independent of how often or how much they drive. The real problem is not phantom draw-downs, but an inability of the BMS programming to charge it to close to 100% ever, and that causes the EFL batteries and to a lesser extent the AGM batteries to sulphate and fail very early in their life.

 

[ZABSMAV]

So battery failure is the issue?

If the vehicle is repeatedly going into deep sleep problem it means the battery has been constantly being undercharged and that causes a FLA or AGM battery to become sulfated and unable to be fully charged. It is a downhill spiral. A modern vehicle should be able to sit in one's garage for a week or two, or even a month and not have the battery continue to discharge. When a battery sits in a discharged mode the sulfation begins and rapidly destroys the battery. Ford's rather wacky answer was to "drive more". We bought a hybrid for occasional local trips to get high miles per gallon. We should be able to choose how much we drive. Ford needs to fix the deep sleep problem (or whatever you want them to call it).

 

[JPerata]

How about those of us who brought in the vehicle that was out of the 3-36 warranty, had the battery tested per the SSM 53801 Then when the ACCM update fails, it bricks the AC. And still had to pay for diagnosis. Then the dealer tries to get Ford envolved, Ford denies any responsibility and won’t fix it on there dime.

 

[ZABSMAV]

How about those of us who brought in the vehicle that was out of the 3-36 warranty, had the battery tested per the SSM 53801 Then when the ACCM update fails, it bricks the AC. And still had to pay for diagnosis. Then the dealer tries to get Ford envolved, Ford denies any responsibility and won’t fix it on there dime.

If the dealer broke something that was working through their negligence (not informing you beforehand that it could do that is negligence) they would be responsible to replace it. Not knowing that it could brick the module is pure negligence. Small claims court?

 

[SFC Mike]

It's interesting that Ford is selling jump starter devices on their accessories webpage

 

[swtiming8]

Ford has just blown past another self-issued deadline and has NOT released a guaranteed fix for the deep sleep problem that almost everyone with the hybrid Maverick is experiencing. They initially said they would have a solution by the end of the first quarter of 2025 (March 31) and then moved the goal post to the end of the second quarter (June 30). Well, that has now passed as well with NO announcement of a final PERMANENT fix to the deep sleep problem.

They released an SSM that said the "some" maverick hybrids "may" be experiencing a parasitic battery drain from the AC Module, and a software update "may" correct that. Enough is enough Ford. Stop throwing spaghetti at the wall hoping something will stick.

I am beginning to believe they are completely incapable of solving this problem since they have had the 2022 through 2025 model years to solve it. Incompetency and not keeping their commitments must now be "Job One" at Ford.

Ford engineering department:

In FMC defense the key word is almost every Hybrid is experiencing, my 2023 XLT Hybrid has not had a single issue with batteries. I hope I’m not putting a spell on my Maverick with this post.

 

[Gullzway]

In FMC defense the key word is almost every Hybrid is experiencing, my 2023 XLT Hybrid has not had a single issue with batteries. I hope I’m not putting a spell on my Maverick with this post.

You've Never had Deep sleep where the Driver side intelligent access doesn't work or Ford Pass remote start doesn't work, or you just haven't noticed/don't use those two things?

 

[swtiming8]

You've Never had Deep sleep where the Driver side intelligent access doesn't work or Ford Pass remote start doesn't work, or you just haven't noticed/don't use those two things?

No I haven’t I know I’m among the few and lucky

 

[ZABSMAV]

You've Never had Deep sleep where the Driver side intelligent access doesn't work or Ford Pass remote start doesn't work, or you just haven't noticed/don't use those two things?

You are likely correct. Most people just jump in their vehicle and don't pay any attention that their interior lights weren't on. And I'll bet that most people don't know that their Ford Pass lost connection because one has to go into their cell phone settings and specifically turn on notifications for the Ford Pass app. If they didn't take that step, they'd never know the multiple times that deep sleep problem occurs.

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