I'm thinking about changing the stock battery to a AGM type battery

[wireman]

When a battery is replaced, does the BMS have to be reset?

If so, does it have to be done by the dealer?

Sponsored

 

[Dude]

When a battery is replaced, does the BMS have to be reset?

If so, does it have to be done by the dealer?

BMS does need to be reset after replacing the battery but anyone not just a dealership can do it:

Battery Sensor Reset (Battery Management System (BMS) Reset):

When you install a new battery, reset the battery sensor by doing the following:
1. Switch ignition on, and leave the engine off.
Note: Complete Steps 2 & 3 within 10 seconds.
2. Flash the high beam headlamps five times, ending with the high beams off.
3. Press and release the brake pedal 3 times.
The battery warning lamp flashes 3 times to confirm that the reset is successful.

 

[rocks]

Do dealers have an electronic tool to save memory settings while changing the battery?

 

[wireman]

BMS does need to be reset after replacing the battery but anyone not just a dealership can do it:

Battery Sensor Reset (Battery Management System (BMS) Reset):

When you install a new battery, reset the battery sensor by doing the following:
1. Switch ignition on, and leave the engine off.
Note: Complete Steps 2 & 3 within 10 seconds.
2. Flash the high beam headlamps five times, ending with the high beams off.
3. Press and release the brake pedal 3 times.
The battery warning lamp flashes 3 times to confirm that the reset is successful.

Thanks. If I have to replace the battery on my own dime, I'll do it myself.

I had a 2018 Escape Titanium and I replaced the battery myself. What a PITA to do. The dealer wanted, if I remember correctly, around $150 to reset it.

I don't know if this procedure would have applied to the Escape at the time. I never reset the BMS and no ill effects. Sold it 6 months later.

 

[Colonel Angus]

BMS does need to be reset after replacing the battery but anyone not just a dealership can do it:

Battery Sensor Reset (Battery Management System (BMS) Reset):

When you install a new battery, reset the battery sensor by doing the following:
1. Switch ignition on, and leave the engine off.
Note: Complete Steps 2 & 3 within 10 seconds.
2. Flash the high beam headlamps five times, ending with the high beams off.
3. Press and release the brake pedal 3 times.
The battery warning lamp flashes 3 times to confirm that the reset is successful.

You forgot one final step.

 

[thomasm23]

These are some photos of my replacement AGM battery. The factory battery

was the same AGM.
21 OB February 2021 build.

Sponsored