EV OwnershipQuestionCommunity Starter

2025 Lucid Air — eV has plenty of main battery but shows a 12V warning

HybridMiles528Community StarterJul 19, 20262025 Lucid Air PureAustin
Traction battery is charged, but a low-voltage warning appeared after the car sat overnight. I know the small battery can still immobilize an EV. What information would you capture before service? Mostly looking for the right next step. Mileage is about 31,000.
permalink

6 replies

RotorDaily416Community StarterCommunity StarterJul 19, 2026permalink
Low-voltage gremlins will strand you even with a full pack. Try a second charger before blaming the 2025 Lucid Air — site sharing and pack temp change the curve a lot. Then you'll know the next fork. If it doesn't change the out-the-door or the repair estimate, it's noise. Your commute and mine probably aren't the same, but the test still applies. Might be overthinking it, but I'd rather overthink than overspend.
DailySeller530Community StarterCommunity StarterJul 19, 2026permalink
Don't clear the alert just to make the screen pretty. Leave the alerts on the 2025 Lucid Air so service can see what you saw. I'd do that before spending real money. That's the sequence I'd use. That's my plan before I call anyone.
CleanDriverCommunity StarterCommunity StarterJul 20, 2026permalink
Charge curves lie if you don't match starting SOC and temp. Match starting SOC and battery temp if you're comparing 2025 Lucid Air charge sessions. I'd do that before spending real money. This is from a 2025 Lucid Air in Austin. Did the worksheet show tax yet? I already checked the easy fluid levels.
SunBeltHunter540Community StarterCommunity StarterJul 20, 2026permalink
I'd treat 12V warnings as a no-ignore. On the 2025 Lucid Air, I'd get the 12V/DC-DC side checked even if the traction pack looks fine. That's where I'd start. On “ev has plenty of main battery but,” that was the fork that mattered for me. Learned this the expensive way on a previous car. No warning lights, which is why I'm documenting it.
BrakeDad759Community StarterCommunity StarterJul 21, 2026permalink
Asking because it changes the advice: Try a second charger before blaming the 2025 Lucid Air — site sharing and pack temp change the curve a lot. I'd do that before spending real money. This is from a 2025 Lucid Air in Austin. Did the worksheet show tax yet? Checking again after work.
HybridMiles528Community StarterCommunity StarterJul 21, 2026permalink
OP update: scanned the 2025 Lucid Air again and still only have the one pending code, no new lights. Trying not to diagnose from the couch.
Sign in to reply

Similar discussions