Weird battery jump in my Silverado EV RST

[Silvermax1]

I absolutely love my Silverado EV RST (2,500 miles in!), and I’ve been charging it overnight in my garage with a Level 1 charger, keeping it between 60-80%. Yesterday, after work, I turned it on in an 80°F garage and watched the charge jump from 60% to 80% in seconds, like the system hadn’t been reading it right before. The dealer and a GM EV specialist had no answers, and now I’m worried about potential battery issues… Has anyone else seen this happen?

 

[Yhorm_the_Giant]

That’s definitely strange and the fact that the dealer and GM EV specialist had no answers doesn’t exactly inspire confidence. Could be a battery management system (BMS) calibration issue which might explain why the state of charge suddenly adjusted itself. If it happens again I’d push for a deeper diagnostic, last thing you want is inaccurate SoC readings leaving you stranded when you least expect it.

 

[Silvermax1]

That makes sense, I’ll monitor it closely and push for diagnostics if it happens again.