Features no longer working

[Master Blaster]

Tomorrow I will have owned my 2022 first edition for 36 months. I have learned that if the coast of North Carolina temperature drops, I do not have interior lights. This occurred the winter of 2022 and 2023 and 2024 but the truck has never failed to start. I know about where all the switches are so I just feel around to find them. I think it is a Ford Maverick standard feature not to provide interior lighting during the winter.

You have a sulfated battery, courtesy of the faulty BMS programming. You are now out of the 3/36 bumper-to-bumper warranty, so you get to buy your own instead of just getting one under warranty. Just for interest, why did you not use the warranty?

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[Chops]

We paid for the ability to remote lock and unlock our vehicle and the FordPass app is the ONLY way to remote start…

I did not pay for Ford Pass App. Did not connect to it either.

I spend a fair amount of time under my Maverick. I only want it to start when I press the in truck start button

 

[ZABSMAV]

Tomorrow I will have owned my 2022 first edition for 36 months. I have learned that if the coast of North Carolina temperature drops, I do not have interior lights. This occurred the winter of 2022 and 2023 and 2024 but the truck has never failed to start. I know about where all the switches are so I just feel around to find them. I think it is a Ford Maverick standard feature not to provide interior lighting during the winter.

Beginning to believe that the lights aren't on in the heads of the Ford engineers. They should have solved the Maverick deep sleep problem a long time ago. We are all still waiting for it.

 

[Dale F]

Beginning to believe that the lights aren't on in the heads of the Ford engineers. They should have solved the Maverick deep sleep problem a long time ago. We are all still waiting for it.

The last I heard is that Ford engineers will have a fix the fall of 2023. I can't wait.

 

[ZABSMAV]

The last I heard is that Ford engineers will have a fix the fall of 2023. I can't wait.

I'm beginning to think they just "may" be able to invent time travel back to the fall of 2023 quicker than they will fix the Maverick hybrid to keep it from having the deep sleep problem.

 

[Darryl]

I agree that I may be a minority opinion in those market forces. Still, at this point, the whole vehicle is a programmable computer and one should be able to make more changes for some preferences.
Talked to my dealer about changing some of the most annoying things (that I've learned can be done with ForScan). Nope, that will void the warranty. Talking now more about the things that make no sense to me like a screen that tells me I just buckled my seatbelt or a bell that tells me I just opened my door or leave the key in the ignition.

Yes the seatbelt notice when buckled makes little sense. But the key in ignition warning when a door is opened has been in place since the 1970s. Back then some customers would have us to disable it. I guess some things are only slightly annoying. But don't really rise to the nerve wracking level.

 

[Darryl]

Sorry, not being rude. The whole point of my post was bsarcastic. The deep sleep and unlit cabin when opening the doors is NOT a feature. I finally was able to get Ford to fix it.

Thanks for the response. Glad you got it fixed though.

 

[KenE]

Yes the seatbelt notice when buckled makes little sense. But the key in ignition warning when a door is opened has been in place since the 1970s. Back then some customers would have us to disable it. I guess some things are only slightly annoying. But don't really rise to the nerve wracking level.

The deep sleep feature has been around a long time. My 2016 F-150 Lariet began telling me my 12V battery was slowing dying when auto Start/Stop ceased working. Then the Deep Sleep message started happening more frequently. After replacing the 7 year old battery everything back to normal. The charging algorithm and minimal parasitic draw on my 2016MY truck permitted a long battery life. I believe the deep sleep feature works correctly in the Mavericks. But charging algorithm via BMS stragety coupled with possible excessive parasitic drain are questionable, which I'm sure most agree. My 2025 Mav occasionally went into Deep Sleep mode. After changing 12V SOC with Forscan from default 80% to 85%, it hasn't entered Deep Sleep mode. Knock on wood! And like others, I use the Ford Pass App and pulling F11 fuse ain't happening. My question is if measuring actual 12V current draw with ammeter with Mav Off, what Milliamp current draw is acceptable before being considered "Excessive"? Lots of talk about excessive parasitic drain but no value attached to theory. Is it excessive battery drain when turned off, poor charging stragety from BMS, or both. It's a shame this hasn't been resolved before now.

 

[Darryl]

The deep sleep feature has been around a long time. My 2016 F-150 Lariet began telling me my 12V battery was slowing dying when auto Start/Stop ceased working. Then the Deep Sleep message started happening more frequently. After replacing the 7 year old battery everything back to normal. The charging algorithm and minimal parasitic draw on my 2016MY truck permitted a long battery life. I believe the deep sleep feature works correctly in the Mavericks. But charging algorithm via BMS stragety coupled with possible excessive parasitic drain are questionable, which I'm sure most agree. My 2025 Mav occasionally went into Deep Sleep mode. After changing 12V SOC with Forscan from default 80% to 85%, it hasn't entered Deep Sleep mode. Knock on wood! And like others, I use the Ford Pass App and pulling F11 fuse ain't happening. My question is if measuring actual 12V current draw with ammeter with Mav Off, what Milliamp current draw is acceptable before being considered "Excessive"? Lots of talk about excessive parasitic drain but no value attached to theory. Is it excessive battery drain when turned off, poor charging stragety from BMS, or both. It's a shame this hasn't been resolved before now.

Ford allows a 0.050A parasitic draw as acceptable. I opened a new thread addressing Ford's latest response. They believe that the excess draw is likely because of an issue with the air conditioning control module not going to sleep mode or not allowing another module to go into sleep mode. The charging strategy isn't the problem in itself. It's the fact that something allows the battery to discharge too much. So it becomes deeply discharged. The charging system isn't designed to quickly charge a deeply discharged battery. When everything is working correctly, there's no reason for the battery to become discharged since nothing of high current uses the 12 volt battery. The vehicle starts using the high voltage battery. The AC uses the high voltage battery. So the things that use the most current from the 12v battery is probably the headlights and the AC blower, . On none hybrid vehicles the starter draws a lot of current. So the alternator needs to quickly replace that current. But the hybrid does not have a situation where something quickly draws a lot of current. So when it's working correctly, it doesn't need a charging system that charges as quickly as a non hybrid.

 

[ZABSMAV]

Ford allows a 9.950A parasitic draw as acceptable. I opened a new thread addressing Ford's latest response. They believe that the excess draw is likely because of an issue with the air conditioning control module not going to sleep mode or not allowing another module to go into sleep mode. The charging strategy isn't the problem in itself. It's the fact that something allows the battery to discharge too much. So it becomes deeply discharged. The charging system isn't designed to quickly charge a deeply discharged battery. When everything is working correctly, there's no reason for the battery to become discharged since nothing of high current uses the 12 volt battery. The vehicle starts using the high voltage battery. The AC uses the high voltage battery. So the things that use the most current from the 12v battery is probably the headlights and the AC blower, . On none hybrid vehicles the starter draws a lot of current. So the alternator needs to quickly replace that current. But the hybrid does not have a situation where something quickly draws a lot of current. So when it's working correctly, it doesn't need a charging system that charges as quickly as a non hybrid.

If Ford "allowed" a nine point nine five amp draw as "acceptable", the 12v battery would be completely dead just sitting overnight.

Your numbers are off by a huge amount.

Ford generally considers a "normal" parasitic current drain for a hybrid Maverick to be less than 50 milliamps (mA) once all modules have gone to sleep, which can take up to an hour or more after the vehicle is turned off.

A tiny 50mA constant discharge would not cause enough drain to put the hybrid Maverick into deep sleep after just minutes (or several hours, or even days) into deep sleep. Yet that is what people are experiencing, even after long drives.

There is either other massive current drainage or it is because inadequate recharging of the battery is causing sulfation and premature permanent damage to the battery that prevents it from ever being properly recharged, a situation known as the battery death spiral.

An acceptable range for a vehicle with an alternator (which the hybrid Maverick doesn't have) can typically be between 50 mA and 85 mA, but anything consistently higher than that in those vehicles is problematic.

 

[Darryl]

If Ford "allowed" a nine point nine five amp draw as "acceptable", the 12v battery would be completely dead just sitting overnight.

Your numbers are off by a huge amount.

Ford generally considers a "normal" parasitic current drain for a hybrid Maverick to be less than 50 milliamps (mA) once all modules have gone to sleep, which can take up to an hour or more after the vehicle is turned off.

A tiny 50mA constant discharge would not cause enough drain to put the hybrid Maverick into deep sleep after just minutes (or several hours, or even days) into deep sleep. Yet that is what people are experiencing, even after long drives.

There is either other massive current drainage or it is because inadequate recharging of the battery is causing sulfation and premature permanent damage to the battery that prevents it from ever being properly recharged, a situation known as the battery death spiral.

An acceptable range for a vehicle with an alternator (which the hybrid Maverick doesn't have) can typically be between 50 mA and 85 mA, but anything consistently higher than that in those vehicles is problematic.

Ooops. I fat fingered it and didn't proofread. I indeed should be 0.05 Amps or 50 mA

 

[HeyBales]

Ford allows a 0.050A parasitic draw as acceptable. I opened a new thread addressing Ford's latest response. They believe that the excess draw is likely because of an issue with the air conditioning control module not going to sleep mode or not allowing another module to go into sleep mode. The charging strategy isn't the problem in itself. It's the fact that something allows the battery to discharge too much. So it becomes deeply discharged. The charging system isn't designed to quickly charge a deeply discharged battery. When everything is working correctly, there's no reason for the battery to become discharged since nothing of high current uses the 12 volt battery. The vehicle starts using the high voltage battery. The AC uses the high voltage battery. So the things that use the most current from the 12v battery is probably the headlights and the AC blower, . On none hybrid vehicles the starter draws a lot of current. So the alternator needs to quickly replace that current. But the hybrid does not have a situation where something quickly draws a lot of current. So when it's working correctly, it doesn't need a charging system that charges as quickly as a non hybrid.

The above bolded is incorrect. Categorically incorrect. I'm sorry.
For what seems some decent % of drivers, that's not correct.

While there are only a few of us I've seen logging actual values - we all do show that there is NO big drain that causes a low voltage battery, with issues getting recharged back up to acceptable levels.

No - it's a constant application of NOT enough charge, that slowly allows the battery to reach levels that sulfation happen at. Now you start getting issues with charging, retaining a charge, ect.

I can provide logs of almost 2 a day drives after my new battery was installed - showing the slow decline of initial Voltage before truck is on, to decreasing SOC%, and decreasing Amps and time at decent amps, to charge it back up. I daily noted the initial Volts and prior sleep time Quiescent mA average to show there was no parasitic drain - ever.
You can watch the BMS system's own PID figures of cumulative charge and discharge change and seemingly increase as you'd expect almost equally, with charging almost clicking over first.
But a slowly degrading battery proves those readings cannot be correct.

Until Ford and techs realize there is a difference, and this has been my concern - the intermittent battery drain SSM will be the end of the story - and very few actually have that problem.

 

[Kenv24]

I did not pay for Ford Pass App. Did not connect to it either.

I spend a fair amount of time under my Maverick. I only want it to start when I press the in truck start button

Last time I checked the Ford Pass App was free......So there's that...

 

[Chops]

Last time I checked the Ford Pass App was free......So there's that...

I agree - and it is nice that it is free. But I was replying to Zabsmav in post #22 where they said “we paid for it”.

 

[ZABSMAV]

I agree - and it is nice that it is free. But I was replying to Zabsmav in post #22 where they said “we paid for it”.

Di you honestly believe the app and the technology behind it in the vehicle and at Ford are "free"? It is built into the price of the vehicle. So, yes, we paid for and expect the features that were advertised with our model to be available and work as advertised.

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