master Warning + Traction Battery Indicator

Had my first hiccup, and it's little disconcerting.

Usually about every two weeks I take my car through a car wash and I have to put the car in N-no big deal, no messages.

This go-around as I was nearing the end of the wash, the Master Warning and the traction battery lights gets thrown, with the message on the display saying I should put the car in Park. Well, naturally you can't do that inside this car wash, so I waited until after I exited and checked the charge display: one purple bar.

So I hit the freeway and within 5 minutes I go all the way up to all Green. So I go from one bar to almost 8 bars in under 5 minutes?

I find this rather odd that all of a sudden I get this behavior.

Here's my question: when this happens, does the car store a DTC code?

I'll watch the charge level when I get back in the car.

 

Yeah, the A/C was on, but I've had the AC running before in near-identical conditions.

I just popped down and checked the battery level, and its still green, so maybe this is an outlier.

 

I just may get a ScanGague after this episode.