2023 Hybrid Keeps Dieing ...

[Chopperbobc]

I had 61 deep sleep notices 2023 xl ..... as you may find out, when you take it to the dealership, they will tell you that the battery is ok.... but that is because you charged up on the way there....it took me 3 trip to the dealership and 3 batterys later my problem seems to be fixed...in my opinion, you need a battery with a high reserve capacity to run all of the electronics while the maverick is not in use...good luck....

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[OleFordGuy]

IMO its sad that this is still going on since MY22. Owners should not have to buy battery booster, chargers etc on a brand new truck. Whats really strange is that some don't have the issue at all or very little but some are plagued with it from day one. Crazy

 

[HoiToid]

Really starting to regret my purchase. I have a 2023 Hybrid XLT and am having to continuously jump it. A little over a year old and I can't trust it to start. I have an appointment scheduled with the dealer on 9/9/24 but thought I would describe my issues and see if anyone has any suggestions or words of encouragement before I give up.

Picked up the truck in March 2023 and loved every second of it until around November/December of 2023.
I started getting the low power mode/deep sleep messages around then and sometimes my interior lighting would not come on. Didn't really think anything of it and thought maybe the cold temps had something to do with it.

Then in Feb. 2024 I woke up one morning to the truck being completely dead. I have a jump pack and I jumped it and immediately took it to the dealer to see what was up. They tested the battery said it was fine and told me to drive it for longer periods. "Go on a roadtrip" the service lady said. About a week went by and it died again. I bought a charger and charged it up and did the bms reset thing I saw on here somewhere and that seemed to fix it for the next several months. I also turned off the wifi thinking that might have had something to do with it.

July 2024 about a week after getting back from a big 1000+ mile road trip the low power mode/deep sleep messages returned. I charged the battery thinking this would fix it again. And it did for like a week and then died again. No matter how far I drive I can never get it to charge normally. I would charge it manually for a weekend and then 2 days later the deep sleep/no interior light issue would return. Then by the end of the week it will start dieing again. It was getting so bad that I had to jump it 3 times in one day just to get to and from work. This was the first week of August.

On 8/9/24, I contacted Ford directly and was told to make an appointment with the dealer and call them with my case number. I called my dealer and was told to bring it in and have them test the battery again when I got a chance and I made an appointment for the earliest date they had available which is 9/9/24. I just got back from taking it to the dealership as it had died again yesterday and I had to jump it again this morning. Wouldn't you know it the battery tested good again this morning. They started to try the "are you driving it long enough crap again" because I have low mileage and I told them it doesn't seem to matter how long I drive it. They suggested I keep my appointment and that I have some type of parasitic draw on the battery.

So thats where I am at currently. I'll update after my appointment on 9/9 but I feel really defeated and sad because I have alway loved Ford and this is starting to make me regret my purchase.

If you have a case number, try getting Ford rep to call dealer (with you on the conference call) and discuss the case number to get the problem resolved. That will get dealer's attention; I had to do this after a week of "bs" from the dealer; they would charge the original battery in the shop and then tell me it was good; got truck home and went into deep sleep within 2 hours.
After Ford rep conference called dealer, I got new battery and 🫰, so far no deep sleep. The original battery was made in Spain and was junk.
Really should not have to go drive a vehicle just to get it to stay charged~~~ waste of time and money

 

[Dad]

Re-reading this thread jogged my memory regarding this problem. Ford is well aware of this problem and they have determined it was the 12v battery cable connection. Seems the connector was not adequately attach to the cable and thus could not provide enough juice to power up the truck. My 22 hybrid had the same no start issue after a few hundred miles and after replacing the connector, I've had no problems other than the Dead Sleep. .

 

[HeyBales]

Re-reading this thread jogged my memory regarding this problem. Ford is well aware of this problem and they have determined it was the 12v battery cable connection. Seems the connector was not adequately attach to the cable and thus could not provide enough juice to power up the truck. My 22 hybrid had the same no start issue after a few hundred miles and after replacing the connector, I've had no problems other than the Dead Sleep. .

That was a recall notice, that got fixed in production eventually (unless you had the odd quality control problem with it), thought it was only the 22MY - the thread start issue is 23MY.

So you actually do have the issue many are talking about - deep sleep enabled when battery voltage gets too low, and system wants enough juice left to start the truck.

The voltage gets too low due to what appears poor programming of what the system decides to keep it at.
And not helped when you were provided a smallish battery with questionable build quality.

 

[Dad]

That was a recall notice, that got fixed in production eventually (unless you had the odd quality control problem with it), thought it was only the 22MY - the thread start issue is 23MY.

So you actually do have the issue many are talking about - deep sleep enabled when battery voltage gets too low, and system wants enough juice left to start the truck.

The voltage gets too low due to what appears poor programming of what the system decides to keep it at.
And not helped when you were provided a smallish battery with questionable build quality.

That's correct. It was a recall. I wasn't sure when the production was rectified.
Yes, the deep sleep is still an issue. As you probably know, Ford just tells their Maverick customers that it's a protection issue and you just need to drive the truck. They don't seem too eager to fix the problem. One has to ask why isn't this an issue with Ford's other hybrid vehicles?

 

[HoiToid]

Yeah, and they don't have to pay for the extra fuel;
Doesn't make sense to have to jump a new vehicle~~~ very embarrassing to have neighbors watching.....
It's a cheesy battery issue and unless you keep pressing for a new battery, the dealers aren't going to cough up a new one

 

[MakinDoForNow]

The problem is that even a different battery will start to show problems in the Mav hybrid, oftentimes after as little as 6-9 months. We put a Diehard in ours Oct 1st of last year after dealing with four Motorcraft batteries; even that was DOA at the dealership this past week after dealing with constant jump starting for a week, and Autozone replaced it. I will be pulling the fuse for the TCU as others have stated here when we pick up the truck today. The heck with Ford and their spying on our driving habits.

The 6-9 months is because the battery get sulfated and or stratified. That's why I put my noco g5 on for a WEEK every other month or so. It takes a week maybe more for Noco g5 to remove sulfate and destratify the acid. Just charging battery 1,2, or 3 days is not enough. I am 31-32 months on my original battery never a deep sleep but see 11.9 b , but normally put Noco on when I see 12.0v. I was hoping Ford would figure out the recall before my 3/36 warranty is up. But I keep ahead of my deep sleep with my "every 12th week" on noco. (not without some driving during it but all the time truck is in garage.). Good luck on pulling #11.

 

[C from SF]

The first time my battery died (at 1,500 miles; ecoboost engine; only drive once a week); I turned off the wifi trying to talk to my fordpass app on my phone. That’s what killed the battery - my not driving it enough and the Ford Pass app draining it. Ford Service came within an hour and charged it, told me to drive the truck more often., So I stopped using my Ford Pass app. Two years and 20,000 miles later no problems since. I can always turn the wifi back on in the truck (the service guys do it to service the car) and reconnect my Ford Pass app temporarily if I want to.

 

[HeyBales]

The first time my battery died (at 1,500 miles; ecoboost engine; only drive once a week); I turned off the wifi trying to talk to my fordpass app on my phone. That’s what killed the battery - my not driving it enough and the Ford Pass app draining it. Ford Service came within an hour and charged it, told me to drive the truck more often., So I stopped using my Ford Pass app. Two years and 20,000 miles later no problems since. I can always turn the wifi back on in the truck (the service guys do it to service the car) and reconnect my Ford Pass app temporarily if I want to.

The truck WiFi option isn't how it talks to your FordPass app.
That WiFi option allows getting radio/info screen updates.
You are thinking of a different option that allows connecting your FordPass app - it's not a direct connect like you think.

Your FordPass app sends data thru your home WiFi or phone cell service back to Ford's servers via your internet connections.
Ford's servers "talk" to your truck via the built in modem (cell phone without screen for data only), and the truck talks back to the servers.

You disabled using the modem (partially but enough it sounds like) by disabling the app connectivity which requires it.
Just like your cell phone can lose battery faster if bad or no cell service - if the truck modem doesn't see ATT network - it's bad. And if it has an issue like this thread has talked about - even worse.

Actually WiFi uses less power than cell service, why phones last longer at home with poor cell coverage inside, but using the wifi instead.

 

[ychuck46]

The 6-9 months is because the battery get sulfated and or stratified. That's why I put my noco g5 on for a WEEK every other month or so. It takes a week maybe more for Noco g5 to remove sulfate and destratify the acid. Just charging battery 1,2, or 3 days is not enough. I am 31-32 months on my original battery never a deep sleep but see 11.9 b , but normally put Noco on when I see 12.0v. I was hoping Ford would figure out the recall before my 3/36 warranty is up. But I keep ahead of my deep sleep with my "every 12th week" on noco. (not without some driving during it but all the time truck is in garage.). Good luck on pulling #11.

Have not had a single problem with the truck since pulling the #11 fuse back in August. We have never gone so long with all the lights coming on, inside and out, when we open the truck up. I am convinced that fuse is the source of 9/10ths of all the battery problems, since our truck seems to be a "normal" truck since we pulled it.

 

[MakinDoForNow]

Have not had a single problem with the truck since pulling the #11 fuse back in August. We have never gone so long with all the lights coming on, inside and out, when we open the truck up. I am convinced that fuse is the source of 9/10ths of all the battery problems, since our truck seems to be a "normal" truck since we pulled it.

The guy who got lucky and dealers tech got approval from Ford engineering to install several batteries, charge them and check truck over night with different modules disconnected finally traced it to the TCU (Telemetric Control Unit) which is what fuze #11 powers. He then replaced the TCU and delivered truck back to owner. It has not been very long but it appears that something in or controlled by the TCU was bad or running in middle of night. I feel like the engineers will thoroughly examine the TCU that was replaced along with several others. If they find several with the same condition/problem we may see a recall on it. The tech did drive the truck several times presumably to gather data to see what the truck reported etc

 

[ychuck46]

The guy who got lucky and dealers tech got approval from Ford engineering to install several batteries, charge them and check truck over night with different modules disconnected finally traced it to the TCU (Telemetric Control Unit) which is what fuze #11 powers. He then replaced the TCU and delivered truck back to owner. It has not been very long but it appears that something in or controlled by the TCU was bad or running in middle of night. I feel like the engineers will thoroughly examine the TCU that was replaced along with several others. If they find several with the same condition/problem we may see a recall on it. The tech did drive the truck several times presumably to gather data to see what the truck reported etc

When we take the truck in for service I will definitely put the fuse back in, but remove it again as soon as we pick it up. Actually I might not get the chance with this one. Since it won't be driven for the winter this year, and we have a 2025 Mav on order to replace it, I will probably trade it in online no later than sometime in November. But if that is the same fuse in the 2025, out it comes, since we have noticed no problem with anything in the truck by having it out.

 

[Tuch]

The guy who got lucky and dealers tech got approval from Ford engineering to install several batteries, charge them and check truck over night with different modules disconnected finally traced it to the TCU (Telemetric Control Unit) which is what fuze #11 powers. He then replaced the TCU and delivered truck back to owner. It has not been very long but it appears that something in or controlled by the TCU was bad or running in middle of night. I feel like the engineers will thoroughly examine the TCU that was replaced along with several others. If they find several with the same condition/problem we may see a recall on it. The tech did drive the truck several times presumably to gather data to see what the truck reported etc

That was me. It's been maybe 6 weeks or so and all is amazing after dealing with that for 18 months. I definitely don't hear all that clicking like I use to, there's some, but nowhere close to as before.

 

[Chewy]

Have not had a single problem with the truck since pulling the #11 fuse back in August. We have never gone so long with all the lights coming on, inside and out, when we open the truck up. I am convinced that fuse is the source of 9/10ths of all the battery problems, since our truck seems to be a "normal" truck since we pulled it.

Exactly what does pulling the #11 fuse disable?

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