No ESC, Trailer brake, Cruise after battery replacement

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Ironguy26

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Nov 14, 2022
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Location
Arizona
Ram Year
2021
Engine
Hemi 6.4
Just swapped out a dying battery in my 2021 Ram 2500 6.4L Laramie. Afterwards, the brake fluid low level light came on, Electronic Stability Control (traction control) light is on and trailer brake system needs service announcement shows. I had no issues prior to replacing the battery. The brake fluid is near full and I can't get the traction Control button to work. Light stays on and the on/off button doesn't work. Also, my cruise Control won't come on (i assume because the ESC light is on). I've tried disconnecting the negative terminal and draining power to no avail. Truck has probably 6 drive cycles on it since the replacement including 2 over 50 miles.
Anyone experience this and have any ideas how to reset the systems?
 
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Ironguy26

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Arizona
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Fuses are good. Truck has been driven over 300 miles and still nothing has reset it changed.
 

RamDiver

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Marlborough, Ontario Canada
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2021 DS
Engine
Hemi 5.7
Just swapped out a dying battery in my 2021 Ram 2500 6.4L Laramie. Afterwards, the brake fluid low level light came on, Electronic Stability Control (traction control) light is on and trailer brake system needs service announcement shows. I had no issues prior to replacing the battery. The brake fluid is near full and I can't get the traction Control button to work. Light stays on and the on/off button doesn't work. Also, my cruise Control won't come on (i assume because the ESC light is on). I've tried disconnecting the negative terminal and draining power to no avail. Truck has probably 6 drive cycles on it since the replacement including 2 over 50 miles.
Anyone experience this and have any ideas how to reset the systems?

New batteries occasionally have a flakey cell, often hidden from digital load testers.
Borrow or buy a $20 toaster-style battery load tester from HarbourFreight.


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Daw14

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South Florida
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5.7 hemi
Make sure both terminals are clean and follow the grounds from the battery to the frame and engine or elsewhere and clean ,tighten those.
 
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