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21 Powerboost SSN Low Battery

Musclez

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So I’ve been having issues with my 21 lariat power boost for the last month or two. A previous 23 I owned had similar electrical issues which I ended up getting out of. Just wanted to see if anyone else had a resolution for the 21 powerboost with the stop safely now.

It’s been at the dealership for over a week. I have a Ford case opened.

It’s extremely frustrating since it’s a $76,000 truck that clearly has problems on the power boost motor not just with my truck but many many many others across the forms.

Right now they’re saying they replaced the 12 V battery and have to reprogram different modules across the truck. Which they have been trying to do for the past three days, it’s very interesting that they are programming for three days and can’t get all the modules to synchronize. You would think that this would be some type of Ford technical case needing to be opened.

Insights would be greatly appreciated.

Vin 1FTFW1ED2MFC83711

also service advisor notes that they texted to me, which I find rather insane that it takes 5 to 7 days to program something. I’m a very technical person and a longtime car enthusiast sounds like a bunch of BS.


battery was replaced and vehicle has multiple communication codes. we need to update the gateway module, telematics control module, accessory protocol interface module, instrument panel cluster for sure at this point. other modules may need programming also. that is what tech has been working on. after all those systems have been updated, we may still need to change the generator module. we will not know that until the other modules are updated and talking to each other.
i will update ford to keep them in the loop
programming all these modules will take some time
nothing on the rear glass yet. i submitted photos for steering wheel concern. i will check on that status.
vehicle has been diagnosed as far as can be right now. tech did find a technical service bulletin, so we are starting down that process. last time we had a vehicle with these types of concerns, the vehicle was down for multiple days. may be looking at 5-7 days depending on how long the programming takes and if further programming and module replacement is necessary
yesterday the vehicle discharged a brand new battery in under 2 hours. we have it back to 100% and are still programming. the accessory protocol interface module(apim) refuses to take the updated program software. he has tried it 3 times already. it is currently running again. if it fails again we may need to replace that module. he did get 2 modules to accept programming and are updated.
i will get a further update from him “

Ford F-150 21 Powerboost SSN Low Battery IMG_2597
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Musclez

Musclez

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You have been a member here for 1 year.
Surely by now you can discern how much disinformation your service department is feeding you?
2000% hence why I’m here and hence why I started a ford case before going to the stealer. You’re a long time member any recommendations? This is a second dealer I’m at. Ford hasn’t been too helpful.
I know this issue is an issue among PBs.
 

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Snakebitten

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2000% hence why I’m here and hence why I started a ford case before going to the stealer. You’re a long time member any recommendations? This is a second dealer I’m at. Ford hasn’t been too helpful.
I know this issue is an issue among PBs.
My advice isn't welcomed by everyone, but I personally see the challenge is ME solving the problems before letting "them" determine the success/failure of the vehicle.

Or put another way, I'm the one who will decide if the ownership experience is potentially satisfying or not, because I don't think "they" are necessarily up to the task.

Specifically, until the truck has every available software update applied, how would I even know if there's something that still might need a remedy? Grab a mongoose and FDRS and catch the truck up on everything.
And absolutely address the potential low voltage issues first because these vehicles fair poorly with marginal 12V power availability. Easy to eliminate the issues with a new battery and/or charger.

Once all that is accomplished, if the truck still experiences SSN, then I am burdened with the task of troubleshooting. But I wouldn't waste my time and effort to do so until I accomplished everything stated above first.
 
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Musclez

Musclez

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Can I even get FDRS I did try that a year or so back. Open to the guidance and doing it myself like recommended.
 

Snakebitten

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You can purchase the license for $50/48 hours

You need a Windows 10/11 laptop

And, of course, an approved OBD adapter. (The infamous Mongoose)
 

LouDog

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Can I even get FDRS I did try that a year or so back. Open to the guidance and doing it myself like recommended.
Curious what your steering wheel issue is. I’m dropping my 21 at the dealer on Monday for creaking/clicking in the steering wheel when turning.
 
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Musclez

Musclez

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Curious what your steering wheel issue is. I’m dropping my 21 at the dealer on Monday for creaking/clicking in the steering wheel when turning.
Clicking lock to lock, and the leather looks to be too short at the base, doubtful ford will warranty it.

Stealer says that’s a 12 Month warranty, asshats really. Why have I purchased 5 fords in 7 years, glutton for punishment? Insanity
 

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Musclez

Musclez

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Well, got the truck back from the dealership yesterday put 100 miles on it today stop safely now came up again. They did 13 hours worth of work replacing the AGM battery programming, modules, etc. I honestly don’t really know where to go to from here, I know some of you have recommended to diagnose on my own and I’m a very technical person. Though I’m open to all ideas on what to do next. I have cases open with Ford and am very concerned that this is a much larger widespread issue.
21 PowerBoost and a 23 PowerBoost same issue so clearly MY changes didn’t have this fixed.
 

Snakebitten

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What code(s) are being stored to go along with the SSN alert?
And what symptoms is the truck experiencing?
 
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Musclez

Musclez

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Have you replaced the battery with. non-Ford battery?
Dealer installed
New motorcraft agm so no.


What code(s) are being stored to go along with the SSN alert?
And what symptoms is the truck experiencing?
Right now nothing aside from pcm code because I pulled the 3 connectors to restart the truck.

freaking asinine, P068A - ECM/PCM Power Relay De-Energized Performance - Too Early
 

Gros Ventre

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Well, I think you should (have) replace(d) the OEM battery with a new non-Ford battery. I started getting some weird alerts about 4 months after delivery. Was on Thanksgiving weekend family travels. So, I just pulled into a NAPA store along the way and bought a new, drop in replacement battery. When I got home I did that "wetting down" charge. Have not had a peep since out of the system. Out my way winters get down to -20ºF in Jan-earlyMar. So, how recent was the battery put in by the dealer manufactured? With luck it's beyond what I believe to be the bad lot Ford took delivery of......... I cannot tell you when that bad lot began nor ended, but cross your fingers you're beyond it... I agree with holding the dealer responsible. Its just what is the easiest way to get beyond this crap.
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