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

[kcflynn]

Ford is replacing the EFL battery on the EcoBoost with an AGM one. but not on the Hybrid. The AGM has better cranking power, but only slightly better reserve capacity for twice the price. The EcoBoost needs the CCA, while the Hybrid needs the RC number. Realistically, putting an AGM in the Hybrid is a waste of money, as it is not going to last twice as long and the slightly better CCA is unused.

In spite of all the misinformation being bandied about here, there is nothing physically wrong with either battery type. The real problem is the BMS misprogramming, causing any non-lithium battery not to fully charge and therefore sulphate. The BMS programming error fix has still not been released.

The battery in my '25 Hybrid XLT died earlier this week after several weeks of Battery Saver Hell...they apparently did replace it under warranty with the BAGM-H4 battery, which is a good sign. We'lll see. Dealer was Sheehy Ford in Wheaton, MD.

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[Tall Hobbit]

I joined the club Tuesday morning, with the 'OMG PULL OVER!' message at ignition. On about the 5th try the truck agreed it was ready to roll. It was not a particularly cold start; I have been driving daily for months. Earlier this year I got a 'emote features disabled' message, and in both instances it was a day or two after a highway trip of modest length, so there may be a pattern I'm sensing. Specifically went with BAGM-H4 before all this started but here we are.

My question is, when buying a modern vehicle, is it now a requirement to become a Battery Bro? I have no experience with voltmeter monitoring and trickle chargers, but since the programming sure seems flawed, is this in my future if I keep the vehicle?

 

[DJT]

As I have previously stated. They are apparently completely clueless and we are entitled to a solution. Twice this year they "promised" a solution and ignored their own dates by which they said one would be announced. This last one wasn't announced as the "solution" but instead as a "possible" cause of battery discharge that "may" contribute to the vehicle having the deep sleep problem. Let us all know what excuse(s) they give you when you take it in.

It gets looked at on Monday. They already told me what Ford said to do on another Maverick that currently is in the shop. I should note, I work in the office at the dealership. Mine has never left me stranded. Only the courtesy lights don't come on when getting in or exiting the vehicle and the passenger door won't unlock when touching the passenger door handle.

 

[OleFordGuy]

I joined the club Tuesday morning, with the 'OMG PULL OVER!' message at ignition. On about the 5th try the truck agreed it was ready to roll. It was not a particularly cold start; I have been driving daily for months. Earlier this year I got a 'emote features disabled' message, and in both instances it was a day or two after a highway trip of modest length, so there may be a pattern I'm sensing. Specifically went with BAGM-H4 before all this started but here we are.

My question is, when buying a modern vehicle, is it now a requirement to become a Battery Bro? I have no experience with voltmeter monitoring and trickle chargers, but since the programming sure seems flawed, is this in my future if I keep the vehicle?

IMO the only Real Fix is for ford to fix the software code related to the charging for the hybrid's. It's been 4 years now, no real fix. The agm batteries help to prolong the issue but its a matter of time before they will show the issue/problem. Many of the hybrid owners use the Noco chargers/maintainers with positive comments on them. That and making sure all your software recalls are done is about all you can do until ford pulls their head out of the sand. If it's any condolence to you, if you search the f150 powerboost (hybrid) forums they've had pretty much the same issues.
I'm certainly no expert on it, don't have the hybrid powertrain, but hopefully some of the other guys can provide you more/better help. So did you originally have the factory AGM and it went bad and replaced and your still having trouble?? Did I understand that correctly? Any chance of a bad battery?

 

[ZABSMAV]

It gets looked at on Monday. They already told me what Ford said to do on another Maverick that currently is in the shop. I should note, I work in the office at the dealership. Mine has never left me stranded. Only the courtesy lights don't come on when getting in or exiting the vehicle and the passenger door won't unlock when touching the passenger door handle.

It would be nice if that was "all" that deep sleep prevented from functioning but it cuts off ALL 2-way communication via the FordPass app including the ONLY way to remote start our 2023 Lariat Hybrid. Ford did not make our model year Lariat available with remote start on the key fob. Also, the FordPass app allows one to know if the vehicle has been broken into or moved from where it was left parked. It is reassuring to be able to see it is still sitting at an airport lot where it was left. There is no way to do it when the stupid vehicle's poorly designed circuits shut off the communications.

 

[HeyBales]

I joined the club Tuesday morning, with the 'OMG PULL OVER!' message at ignition. On about the 5th try the truck agreed it was ready to roll. It was not a particularly cold start; I have been driving daily for months. Earlier this year I got a 'emote features disabled' message, and in both instances it was a day or two after a highway trip of modest length, so there may be a pattern I'm sensing. Specifically went with BAGM-H4 before all this started but here we are.

My question is, when buying a modern vehicle, is it now a requirement to become a Battery Bro? I have no experience with voltmeter monitoring and trickle chargers, but since the programming sure seems flawed, is this in my future if I keep the vehicle?

I've never heard an issue with the 12V battery getting a response like pull over.

I guess if somehow a badly sulfated battery finally lost it while driving.
But it sounds like you are describing initial startup. Which really doesn't make sense.

In the final days of my original battery, it seemed the BMS was trying to hold back on too much charge on a battery it probably could tell was almost done for, couldn't hold a charge overnight for nothing. Which is appropriate, can end up overcharging rest of it if not careful.

But it's ability at figuring that out was just as bad as it's ability to provide enough charge in the first place.
Battery pushed to the edge over some extended 30 min drives 2x daily for 4 days in a row. Normal work is only 2x 10-15 min.
Really failed to hold charge 2 days later.

From the number of online stories from any recent (since 2005 depending on features) vehicle - ya you do get to become a BB.
More features - more opportunities for things to go wrong with more modules reading/controlling more things. And they can be so intermittent sometimes.
Our issue of constant undercharging does seem to be a Ford skill point, I've not noticed other brands having whole models with complaints.
Some with feature sets may, but that's probably intermittent.

Get a not-cheapest power port USB adapter, that has a Volt display on it.
Use a multimeter to confirm how much if any it's off by directly in the port. (mine reads 0.2 high)
Just note each morning in ACC mode before turning truck on, where is the voltage normally.

 

[MakinDoForNow]

Not true. First I had like replacement followed by a bigger CCA replacement twice and this one is showing signs of losing power after 6 months. Dome lights still work though right now. I do get battery saver alerts on app again and shut down messages on my dash and sometimes on the radio. I'm thinking of mounting a solar panel to the roof for charging as well as permanently connect a jump pack. It really is a shame, such a cool vehicle concept.

I was stating that the dealer had to show the battery put in was the same as the battery taken out so he could get ford to pay him for the battery.

 

[DJT]

It would be nice if that was "all" that deep sleep prevented from functioning but it cuts off ALL 2-way communication via the FordPass app including the ONLY way to remote start our 2023 Lariat Hybrid. Ford did not make our model year Lariat available with remote start on the key fob. Also, the FordPass app allows one to know if the vehicle has been broken into or moved from where it was left parked. It is reassuring to be able to see it is still sitting at an airport lot where it was left. There is no way to do it when the stupid vehicle's poorly designed circuits shut off the communications.

yep.... i knew that. I blame the sleep mode on my ability to type what's wrong with my maverick as well.

 

[johnDeere]

Hello all, I can't believe this thread is up to 518 posts and still not reading where there is a worthwhile fix.
I noticed my 2023 ford maverick hybrid xlt message me about going into sleep mode 2 months ago, several hours after turning off the truck. (yes this was odd).
It has not done it anymore.
I have a volt amp meter connected to the battery, so I can see whats going on with voltage and charging or discharging current.
What I have noticed is the voltage of the battery when the truck is powered on reads 14.6 to 15.1 volts.
If your not reading that voltage when you powered on, there is a problem, and changing batteries will not help.
I still don't know if I have the problem with abnormal current draw causing sleep mode messages since I installed a second 12v battery in the other bay. (this battery has removable caps so you can check the water level).
So far the water level is normal, so not over charging. ( that was one theory to why the batteries are going bad).
There is still some abnormal draw when I turn off the key, but it does go down after a while, and I still maintain over 12.6v after a week of sitting.
At least I don't get the sleep message anymore.

When I get a warm fuzzy felling about a worthwhile fix, I will remove the second battery and take it to the ford dealer to get the update.

 

[Tall Hobbit]

IMO the only Real Fix is for ford to fix the software code related to the charging for the hybrid's. It's been 4 years now, no real fix. The agm batteries help to prolong the issue but its a matter of time before they will show the issue/problem. Many of the hybrid owners use the Noco chargers/maintainers with positive comments on them. That and making sure all your software recalls are done is about all you can do until ford pulls their head out of the sand. If it's any condolence to you, if you search the f150 powerboost (hybrid) forums they've had pretty much the same issues.
I'm certainly no expert on it, don't have the hybrid powertrain, but hopefully some of the other guys can provide you more/better help. So did you originally have the factory AGM and it went bad and replaced and your still having trouble?? Did I understand that correctly? Any chance of a bad battery?

Thanks for the reply. I'll consider a charger/maintainer.

I had the dealer install the AGM battery after purchase, as a condition of purchase, because when I rolled off the lot didn't realize they hadn't changed it out yet. So, 2 months on the factory battery, then May 19 they replaced it with one of their AGMs; two months after that got the 'remote features' message, and then this week the no-go situation.

 

[Tall Hobbit]

I've never heard an issue with the 12V battery getting a response like pull over.

I guess if somehow a badly sulfated battery finally lost it while driving.
But it sounds like you are describing initial startup. Which really doesn't make sense.

In the final days of my original battery, it seemed the BMS was trying to hold back on too much charge on a battery it probably could tell was almost done for, couldn't hold a charge overnight for nothing. Which is appropriate, can end up overcharging rest of it if not careful.

But it's ability at figuring that out was just as bad as it's ability to provide enough charge in the first place.
Battery pushed to the edge over some extended 30 min drives 2x daily for 4 days in a row. Normal work is only 2x 10-15 min.
Really failed to hold charge 2 days later.

From the number of online stories from any recent (since 2005 depending on features) vehicle - ya you do get to become a BB.
More features - more opportunities for things to go wrong with more modules reading/controlling more things. And they can be so intermittent sometimes.
Our issue of constant undercharging does seem to be a Ford skill point, I've not noticed other brands having whole models with complaints.
Some with feature sets may, but that's probably intermittent.

Get a not-cheapest power port USB adapter, that has a Volt display on it.
Use a multimeter to confirm how much if any it's off by directly in the port. (mine reads 0.2 high)
Just note each morning in ACC mode before turning truck on, where is the voltage normally.

Yes, it was on startup, and wouldn't let me get out of Park even.

Since O'Reilly's read and cleared the code, it hasn't come back so far, but I know nothing is resolved yet. Unlike several here, I had no telltale symptoms e.g. dome light/locks before or after. Fortunately I had already scheduled a service date for other things in two weeks so now this has their attention and they'll do full diagnostics, supposing I can make it 130 mi to the shop.

You've given me some helpful ideas. I like the thought of the USB adapter in the power point. Hope everything works out in your case too -eventually!

 

[HeyBales]

Yes, it was on startup, and wouldn't let me get out of Park even.

Since O'Reilly's read and cleared the code, it hasn't come back so far, but I know nothing is resolved yet. Unlike several here, I had no telltale symptoms e.g. dome light/locks before or after. Fortunately I had already scheduled a service date for other things in two weeks so now this has their attention and they'll do full diagnostics, supposing I can make it 130 mi to the shop.

You've given me some helpful ideas. I like the thought of the USB adapter in the power point. Hope everything works out in your case too -eventually!

Ohh, that does sound like something else then. May still be 12V system related, but maybe not the battery directly since it sounds charged up enough.
Hope they get that figured out without it needed to happen in front of them.

 

[Amandarin]

Got my truck back on Sept 24th after the completed the ACCM update (per the latest TSB that is trying to fix this) and had the 'remote features disabled l' message pop up on the phone application the very next day, and every other day after that. As part of the CAMVAP arbitration process you must have attempted to address the problem directly with the manufacturer (in addition to the dealership). So today I spoke with Ford Canada, who initially said that without a proper diagnosis they can't do anything. I explained that for more than a year and a half they have not diagnosed the problem and have only made guesses to try and fix it, to no avail. It was then he reported he would reach out to my dealership to investigate further. They asked what resolve I was seeking, I told them I wanted them to buy back my vehicle, because there is no fix in site. They told me to stay tuned. I personally think that every person experiencing this issue needs to escalate it directly with Ford Motor Company and file a claim with CAMVAP (For Canada residents) or identify the appropriate process under your state's Lemon Law (https://bbbprograms.org/programs/all-programs/bbb-autoline/lemon-laws-by-state)

I suspect Ford is attempting to avoid these programs by holding people off until their manufacture's warranty expires or you are past the number of Kms to allow for the matter to be arbitrated

 

[Tall Hobbit]

Ohh, that does sound like something else then. May still be 12V system related, but maybe not the battery directly since it sounds charged up enough.
Hope they get that figured out without it needed to happen in front of them.

Hopefully...

Had the same trouble again today, along with a remote features disabled message. After a while I was able to go. Last week, service guy at the dealership was able to remotely see all kinds of error reporting from the vehicle that doesn't show up in FordPass or dashboard messages, like some audio system issue (voltage?) and the 12V being at about 54% charge at the time. That's at once encouraging and unnerving that they can see all this, but hopefully it means they're convinced the problem is real by what they see. I should know by the end of the week how they'll approach this, when I make the trip to the dealer.

 

[ZABSMAV]

Hopefully...

Had the same trouble again today, along with a remote features disabled message. After a while I was able to go. Last week, service guy at the dealership was able to remotely see all kinds of error reporting from the vehicle that doesn't show up in FordPass or dashboard messages, like some audio system issue (voltage?) and the 12V being at about 54% charge at the time. That's at once encouraging and unnerving that they can see all this, but hopefully it means they're convinced the problem is real by what they see. I should know by the end of the week how they'll approach this, when I make the trip to the dealer.

With the 54% SOC it is highly predictable that that battery is, or will soon be, toast, as chronic undercharging leads to permanent sulfation of the battery.

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