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- First Name
- Ray
- Joined
- Mar 9, 2025
- Threads
- 23
- Messages
- 403
- Reaction score
- 1,067
- Location
- Brockville, Ontario, Canada
- Vehicle(s)
- 2024 Bronco Sport
- Thread starter
- #17
Same for me. I had no idea this was on since I picked up the car in October ‘24.
- First Name
- Colt
- Joined
- Mar 26, 2023
- Threads
- 45
- Messages
- 558
- Reaction score
- 1,015
- Location
- Washington
- Vehicle(s)
- Bronco sport
I just checked and it turns on automatically after you turn the car off, much like the auto start stop. So it seems as though it’s meant to be on.
In terms of battery SoC: Keeping the a/c fan speed on 5 or higher tricks the BMS system into charging the 12v battery regardless of its state of charge. I've put 26k miles on my truck since I bought it 4.5 years ago......my daily commute is very short. Because I don't drive much, I always have issues keeping the charge up. I also have an aftermarket sound system and 3 camera dashcam set up that pulls additional juice. I connect my truck to a charger at least once a month and top the 12v battery off.
Newer vehicles put 12v batteries to work. If you have a newer Bronco 2025 and up on Sync 4.....even more so. If my truck is going to be sitting for a while, I disconnect the 12v battery completely using a killswitch I installed to prevent the SoC from dropping. I use something like this:
https://www.amazon.com/RVBOATPAT-Battery-Disconnect-Automatic-Control/dp/B0CC2DXSTH/ref=sr_1_15?crid=3BJTSJYE3DA7G&dib=eyJ2IjoiMSJ9.WiLyfvAr0tGKImp1B5BfaSCOFOBzGSmUT1r9zRwDFSN54-8V9Col6xpleUcugTpteKkKmKIgDsCaMn0AOu23mEvl18jlkLUlRmIXR60DIgwJiVWL_Rh-uYyqVPj9IUj4hggnqHbYX3OIYobGBmcB8LEf7ZPnnc9IEbQCnrDijnvT0eNE4Of-rpCrQ43_6WhL2VTJkM6Kxmj0Z-InJUENS7y4sX4OtRTF3yEIye2AeC8.BocbF0bsinuhsqcChY1ippZkGeqcUaNwRcAxZQK24_k&dib_tag=se&keywords=12v+battery+killswitch&qid=1779218159&sprefix=12v+battery+kill,aps,213&sr=8-15&th=1
It is also a quick and easy way to disconnect the battery in case you need to force a hard reset of the module network
In terms of improving fuel economy: I got nothing. lol
Newer vehicles put 12v batteries to work. If you have a newer Bronco 2025 and up on Sync 4.....even more so. If my truck is going to be sitting for a while, I disconnect the 12v battery completely using a killswitch I installed to prevent the SoC from dropping. I use something like this:
https://www.amazon.com/RVBOATPAT-Battery-Disconnect-Automatic-Control/dp/B0CC2DXSTH/ref=sr_1_15?crid=3BJTSJYE3DA7G&dib=eyJ2IjoiMSJ9.WiLyfvAr0tGKImp1B5BfaSCOFOBzGSmUT1r9zRwDFSN54-8V9Col6xpleUcugTpteKkKmKIgDsCaMn0AOu23mEvl18jlkLUlRmIXR60DIgwJiVWL_Rh-uYyqVPj9IUj4hggnqHbYX3OIYobGBmcB8LEf7ZPnnc9IEbQCnrDijnvT0eNE4Of-rpCrQ43_6WhL2VTJkM6Kxmj0Z-InJUENS7y4sX4OtRTF3yEIye2AeC8.BocbF0bsinuhsqcChY1ippZkGeqcUaNwRcAxZQK24_k&dib_tag=se&keywords=12v+battery+killswitch&qid=1779218159&sprefix=12v+battery+kill,aps,213&sr=8-15&th=1
It is also a quick and easy way to disconnect the battery in case you need to force a hard reset of the module network
In terms of improving fuel economy: I got nothing. lol
- First Name
- Scott
- Joined
- Nov 19, 2025
- Threads
- 0
- Messages
- 150
- Reaction score
- 360
- Location
- Nampa, Idaho
- Vehicle(s)
- 2025 Bronco Sport Badlands, 2025 Bronco Sport Badlands Sasquatch, + 4 Stangs
Just a FYI if your engine never get up to running temp your going to have a lot of carbon build up issues down the road.
I ended up getting a trickle charger and it has made a world of difference! I got NOCO Genius 1, removed the clamps and connected the leads directly to the battery. I hooked a NOCO extension cable and ran the end out through the drain near the wipers and just hook up the charger after use. I average once a week - the remote features were shutting off in between uses sometimes, the auto start/stop never worked, and I could definitely see the drop in gas mileage until the alternator charged the battery (like 10-20% lower).
Yea, it gets up to normal temps. Also, with the way I drive and pushing over 20lbs of boost, any carbon that does build up in my engine is clinging on for dear life on a daily basis.
Make sure you are connecting the charger to the BMS sensor and not directly to the battery terminal so you don't mess up the BMS data quality.
Today when I was pulling my utility trailer down the highway I decided I would try turning the traction control off see if they felt a difference or anything and when you have your traction control off I don’t know if it just is the case if you’re pulling a trailer or not, but then my cruise control wouldn’t work
Bummer, mine is not welded and on some vehicles the bolt got loose which maybe explains why it’s now welded (assuming ford made that change IDK)
- First Name
- Alan
- Joined
- Feb 10, 2026
- Threads
- 1
- Messages
- 23
- Reaction score
- 56
- Location
- Oregon
- Website
- mountainpacker.com
- Vehicle(s)
- 2025 Bronco Sport, 1970 Mustang Mach1
On My 2025 BSBL I was able to toggle off the following.
#6: Wi-Fi Hotspot Broadcasting
#5: FordPass Connectivity Polling
#4: Voice Wake Word Monitoring
#3: Automatic OTA Software Download
My car was on the dealer lot for 5 months so the battery could already be compromised.
Hopefully this helps.
Regarding gas mileage, I was able to toggle off trailer sway control and the lane keeping assist was already on normal not max.
#6: Wi-Fi Hotspot Broadcasting
#5: FordPass Connectivity Polling
#4: Voice Wake Word Monitoring
#3: Automatic OTA Software Download
My car was on the dealer lot for 5 months so the battery could already be compromised.
Hopefully this helps.
Regarding gas mileage, I was able to toggle off trailer sway control and the lane keeping assist was already on normal not max.
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