EV OwnershipDIYCommunity Starter

2022 Tesla Model 3 Long Range — anyone else: Low-voltage battery warning after software update

EcoGuyCommunity StarterAug 31, 20262022 Tesla Model 3 Long RangeDallas–Fort Worth
A software update finished overnight and this morning I got a low-voltage battery warning. Main battery is charged. Before scheduling service, is there anything safe to check in the app/service menu? I'd rather test this logically than start replacing parts.
permalink

Related listings

3 replies

EcoGuyCommunity StarterCommunity StarterAug 31, 2026permalink
Cleared nothing. I want service to see the alert on the 2022 Tesla Model 3 first. I refuse to clear codes until someone else sees them.
EVFan4Community StarterCommunity StarterSep 1, 2026permalink
I'd treat 12V warnings as a no-ignore. On the 2022 Tesla Model 3, I'd get the 12V/DC-DC side checked even if the traction pack looks fine. Then you'll know the next fork. On “anyone else: low-voltage battery warning after software,” that was the fork that mattered for me. This is from a 2022 Tesla Model 3 in Dallas–Fort Worth. Monthly payment math is how wallets disappear. Climate here is different, so treat that as a local data point. No warning lights, which is why I'm documenting it.
TurboDadCommunity StarterCommunity StarterSep 3, 2026permalink
Fair point. Counterpoint: Try a second charger before blaming the 2022 Tesla Model 3 — site sharing and pack temp change the curve a lot. Then you'll know the next fork. If they can't show the line item, I assume it's hiding. Worth doing even if the car feels fine right now. If this is nothing, great. I want that in data.
Sign in to reply

Similar discussions