Battery won’t charge beyond 72%

[mjdonat]

Hi can anyone inform me why my Platinum 2022 Lightning won’t charge beyond 65-75%? It charges up to somewhere in that range then just arbitrarily jumps to 100% and says it’s full. You unplug the truck and it drops back down to say 68%. This all started happening after a series of recalls were performed on the vehicle at the dealer.

I’ve also check and rechecked all settings in the app and on the truck, it’s programmed to charge to 90%. Has anyone else experienced this? Thanks for any advice or tips.

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[TaxmanHog]

This has been a symptom of trucks which had a recent HVB module swap, have any of your modules been changed out?

 

[mjdonat]

I’m not 100% sure but I think they have been. The truck went into “limp mode” with the amber wrench displayed on dash, wouldn’t go faster than 3-5 mph. I had it towed in, they fixed that and a bunch of recalls. I asked them what that did or what caused the “limp mode” and amber wrench. The explanation involved something about modules not communicating with one another requiring a large software update. But modules was definitely mentioned because I’ve never heard of that before. So what’s the fix now? Take it back to dealer?

 

[invertedspear]

Yes, back to the dealer. In a personal electronic device this means one of your battery cells is likely dead. In a more complex battery pack like this, it could mean a dead module, or just a bad BMS that’s not getting the right data from modules. Nothing you’re going to be able to do to solve this in your driveway.

 

[mjdonat]

Ugh ok I was afraid of that. I’ll call the dealer on Monday. Thanks guys

 

[skyak]

Mine did this a couple weeks ago, wouldn't charge past 65% or so and wrench on dash. I took it to dealer and they replaced a battery module and did a bunch of software configuring / updates.
One thing to watch out for is that they will most likely not flush your coolant properly, so plan on adding coolant to the system after you get it back from the dealer. Installing a new battery module requires them to disconnect and reconnect the module to the coolant loop.

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