Sponsored
Error Messages on Your Hybrid? Replace the 12V Battery! Here's How (and Why).
- First Name
- Steve
- Joined
- May 31, 2025
- Threads
- 11
- Messages
- 235
- Reaction score
- 375
- Location
- Santa cruz, CA
- Vehicle(s)
- 2025 Lobo MPC EB
- Engine
- 2.0L EcoBoost
must reset BCM- instructions in manual
- First Name
- Mark
- Joined
- Apr 14, 2024
- Threads
- 1
- Messages
- 170
- Reaction score
- 206
- Location
- California
- Vehicle(s)
- 2023 Maverick Lariat
- Engine
- 2.5L Hybrid
At the beginning of history, that's where.
- First Name
- Mark
- Joined
- Apr 14, 2024
- Threads
- 1
- Messages
- 170
- Reaction score
- 206
- Location
- California
- Vehicle(s)
- 2023 Maverick Lariat
- Engine
- 2.5L Hybrid
His story, not history
- First Name
- Mike
- Joined
- May 3, 2024
- Threads
- 4
- Messages
- 4,983
- Reaction score
- 4,608
- Location
- KC Metro area
- Vehicle(s)
- 2005 Toyota RAV4, 2024 XLT Hybrid
- Engine
- 2.5L Hybrid
Wow, good catch, since it was side reference buried in there didn't notice.
Why am I thinking he had some AI assist, and it just got it wrong.
It could have mentioned don't mess with orange covered wires, and been a better safety tip.
Sponsored
Hybrid Hauls checking in! Huge thanks for this write-up. That 10" extension bar tip is a lifesaver—I've seen so many people drop that bracket bolt into the 'Maverick abyss' under the seat.
Quick question: Did you perform a BMS (Battery Management System) reset after swapping to the AGM? I've heard conflicting reports on whether the Maverick's computer automatically adjusts its charging profile for the higher capacity H4/AGM without a reset. Curious to hear your thoughts!
Quick question: Did you perform a BMS (Battery Management System) reset after swapping to the AGM? I've heard conflicting reports on whether the Maverick's computer automatically adjusts its charging profile for the higher capacity H4/AGM without a reset. Curious to hear your thoughts!
- First Name
- Mike
- Joined
- May 3, 2024
- Threads
- 4
- Messages
- 4,983
- Reaction score
- 4,608
- Location
- KC Metro area
- Vehicle(s)
- 2005 Toyota RAV4, 2024 XLT Hybrid
- Engine
- 2.5L Hybrid
The reset takes care of all the values it tracks for the current battery. Cumulative and days in service. (months is HVB)
Those enter in the equation for charging levels to apply.
Newer battery has less resistance, lower charge. Older has higher, higher charge.
BMS system may measure resistance anyway, like a good battery tester does, for that value too. Be smart if they did.
It also causes the BMS Relearn to be like scheduled 1st opportunity it gets. So that night preferred while still a full charge - so it can discover that fact.
If you read the many threads on replacing batteries - yes the reset is done, per the manual instructions. And BMS Relearn is always thrown out as reminder, since mighty important too!
Those enter in the equation for charging levels to apply.
Newer battery has less resistance, lower charge. Older has higher, higher charge.
BMS system may measure resistance anyway, like a good battery tester does, for that value too. Be smart if they did.
It also causes the BMS Relearn to be like scheduled 1st opportunity it gets. So that night preferred while still a full charge - so it can discover that fact.
If you read the many threads on replacing batteries - yes the reset is done, per the manual instructions. And BMS Relearn is always thrown out as reminder, since mighty important too!
Sponsored
