Sponsored

2021 f150 hybrid - remote features disabled message and all accessory power active

VADADAD

Member
First Name
Dominic
Joined
Nov 14, 2025
Threads
1
Messages
8
Reaction score
1
Location
Michigan
Vehicles
2021 F150 Ecoboost hybrid
Bought as dealership lease vehicle with 30K miles. Within a week started getting messages through the app that the remote features were being disabled to conserve battery. Had battery tested at AutoZone. Good. Continued to happen. People online with the similar issue said their dealership told them they needed to drive more. Absurd. Scheduled service. Meanwhile in the morning I will start up, roll down the driveway, turn onto the street and the gas pedal stops responding. It's like the tranny is gone even though I know that's not a thing. Just no response. No dash lights. Nothing. About 2 seconds later it lurches forward with a big thud like the fly wheel engaging hard (again I know this is not a thing in this vehicle). I think it's something wrong with the driving assist where it's not seeing the lines properly on the road and it's going into some kind of limp mode I have no idea. That idling followed by the sudden surge of power even squeals the tires a little bit but it all happens in a matter of about five seconds. Service date they looked at it and said the battery probably needed to be recharged. Paid for the recharge. Not 2 weeks later I'm on a jobsite on a summer day and truck won't start. Says all Accessory power active. Won't even go into neutral. Multiple dash lights. Service vehicle, battery, etc Tow truck had a special tool to get it into neutral but it was a b****. Towed to dealership. 2 days later they said they fixed it. Cause? Software needed to be updated! Charged $350. I battled with them because they probably should have done that themselves before selling me the truck. I asked if it's something that I'm supposed to be doing. They said probably not even on your home Wi-Fi it probably wouldn't work well. I explained that no one told me I would have to pay for regular software updates. That's stupid. They told me to turn on auto update in the app. I turn it on. It turns itself off. I turn it on again. Again it turns itself off. I turned it on a third time and it stays on. I close the app and reopen. Auto software update set to off. Irritated to say the least. I read the report and it said that there was an error to the battery charging module A and then several cascading errors stemming from that error. Whatever it was the update seem to have solved it. First cold day this fall I start getting the alerts again. Remote features disabled to conserve battery. I'm driving every day 20 minutes to work on the freeway in 20 minutes home with periodic city driving in between. 62° today and I went out and got in the truck to come home and it wouldn't start. Says, all accessory power active. I turn off everything I can think of that would be a battery drain and try one last time and it starts on a really low hum. Barely rolled out of my parking place and she starts to pick up then I'm on engine and good all the way home. Scheduled service again but don't trust them as far as I can throw them. I don't know a lot about trucks but it seems like it's either a battery issue, an issue with whatever electronics are supposed to be charging the battery in cahoots with the alternator, or some drain in the system that's causing the battery to lose power too quickly. Not wanting to drop $350 on an h7 just yet if I don't know whether it's a software hardware mechanical or otherwise issue first. Any thoughts? Anyone had any experience like this with these hybrids?
Sponsored

 

Snakebitten

Well-known member
First Name
Bruce
Joined
Jun 19, 2021
Threads
5
Messages
11,560
Reaction score
22,964
Location
Coastal Texas
Vehicles
2022 F150 KingRanch Powerboost
You have 2 AGM batteries.

One under the hood.
One under the rear passenger seat.
They are hooked in parallel, so a sick one can drag down a healthy one.

There is a LOT of information on this site regarding troubleshooting, addressing, and maintaining the low voltage 12V bus in the Powerboost. But process of elimination pretty much requires starting with 2 fully charged batteries that can be verified to hold a healthy resting voltage.
 

Steelerz1

Well-known member
First Name
Tim
Joined
Aug 12, 2025
Threads
0
Messages
73
Reaction score
64
Location
Denver, NC
Vehicles
2022 F150 XLT CrewCab with 3.5L Ecoboost
Occupation
Electronic Tech
Hey sorry to hear about your troubles. I don't have the powerboost just regular ecoboost 3.5. However, I was getting the same battery warnings even though battery tested good. I finally broke down and put a new H8 (largest capacity that mine will take) Night and day difference so far...truck got a new update the first night after ...which had not been happening. My guess is yours has the original motorcraft battery like mine did. I would at least start with a new one and not another motorcraft...lots of people having issues with those. I went with a Wal-Mart AGM and it was $189.
 

TarnishedCopper

Well-known member
First Name
Terry
Joined
Feb 12, 2023
Threads
16
Messages
295
Reaction score
136
Location
Davenport, Iowa, USA
Vehicles
2022 F-150
Occupation
Retired/Auctioneer
Many of us experience the issue every time we start the vehicle. The quality and longevity of Ford's batteries is in question, and it is possible they just cut corners by equipping the truck with a battery of questionable quality and too smallcapacity just to get them out the door.
 
OP
OP

VADADAD

Member
First Name
Dominic
Joined
Nov 14, 2025
Threads
1
Messages
8
Reaction score
1
Location
Michigan
Vehicles
2021 F150 Ecoboost hybrid
Thanks all!
 

Sponsored

OP
OP

VADADAD

Member
First Name
Dominic
Joined
Nov 14, 2025
Threads
1
Messages
8
Reaction score
1
Location
Michigan
Vehicles
2021 F150 Ecoboost hybrid
Ok dealership agreed to swap out both batteries only not covered by my top tier warranty. But i have a question related to the reset of the battery system after the change. Several threads on here mention resetting. Dealership said this is only able to be done by the dealership and it's is not something I can do myself. Is that true?
 

Ricksc

Well-known member
First Name
Rick
Joined
Feb 25, 2024
Threads
22
Messages
1,182
Reaction score
995
Location
Bay area
Vehicles
2022 F-150
You can do it one of two ways. Forscan or the method of flashing lights and brake taps. If dealship changed batteries they should reset it. Well one would think so.
 
OP
OP

VADADAD

Member
First Name
Dominic
Joined
Nov 14, 2025
Threads
1
Messages
8
Reaction score
1
Location
Michigan
Vehicles
2021 F150 Ecoboost hybrid
Ok, so I told the dealership to pound sand. I replaced both the main battery and the auxiliary. All issues seem resolved except the loss of drive power and large thud following a cold start. Any ideas? Also the automatic update in the app never stays on.
 
OP
OP

VADADAD

Member
First Name
Dominic
Joined
Nov 14, 2025
Threads
1
Messages
8
Reaction score
1
Location
Michigan
Vehicles
2021 F150 Ecoboost hybrid
Hey All, just replaced both the main and aux battery a couple weeks ago. Drove to work and back on Friday. Cold on Saturday night. Truck wouldn't start Sunday morning. 12.25A reading on main battery which has 1000CCA. Had to jump to get going. Possible all these electrical issues I've had were from the battery recharge system and not the batteries at all? I live in MI but it didn't even get below zero so I would think the H7 battery would hold it's charge a lot longer. Please advise!
 

Sponsored


Ricksc

Well-known member
First Name
Rick
Joined
Feb 25, 2024
Threads
22
Messages
1,182
Reaction score
995
Location
Bay area
Vehicles
2022 F-150
Hey All, just replaced both the main and aux battery a couple weeks ago. Drove to work and back on Friday. Cold on Saturday night. Truck wouldn't start Sunday morning. 12.25A reading on main battery which has 1000CCA. Had to jump to get going. Possible all these electrical issues I've had were from the battery recharge system and not the batteries at all? I live in MI but it didn't even get below zero so I would think the H7 battery would hold it's charge a lot longer. Please advise!
Did you reset the BMS after new batteries?
 

Snakebitten

Well-known member
First Name
Bruce
Joined
Jun 19, 2021
Threads
5
Messages
11,560
Reaction score
22,964
Location
Coastal Texas
Vehicles
2022 F150 KingRanch Powerboost
Hey All, just replaced both the main and aux battery a couple weeks ago. Drove to work and back on Friday. Cold on Saturday night. Truck wouldn't start Sunday morning. 12.25A reading on main battery which has 1000CCA. Had to jump to get going. Possible all these electrical issues I've had were from the battery recharge system and not the batteries at all? I live in MI but it didn't even get below zero so I would think the H7 battery would hold it's charge a lot longer. Please advise!
How can you describe exactly what "wouldn't start" means? I ask because on a Powerboost, starting isn't necessarily as simple as it might be if we are discussing a non-hybrid vehicle.
 
OP
OP

VADADAD

Member
First Name
Dominic
Joined
Nov 14, 2025
Threads
1
Messages
8
Reaction score
1
Location
Michigan
Vehicles
2021 F150 Ecoboost hybrid
How can you describe exactly what "wouldn't start" means? I ask because on a Powerboost, starting isn't necessarily as simple as it might be if we are discussing a non-hybrid vehicle.
It's a hybrid. Pressing button didn't start truck. Few lights on the dash but no engine start.
Sponsored

 
 







Top