I already had a TAC case open with GM, so they shouldn't have to do anything. But then again, I never trust dealerships to do anything right/sensible.
AC on Battery
So I'm at the dealer today in the hope they will update the backfire issue. The SA said it takes a long time (to hook the thing to a computer and walk away???). Anyway, I drained the battery so if they had to go for a joy ride they could experience the issue quickly. I got to wondering with my drained battery about how long the AC would run on almost no battery while sitting at a traffic light. I know a lot of start/stop cars will start the engine after a minute or so sitting with the AC on. So how long will the Volt be able to run the AC at a light if there is effectively no battery left before it starts the engine?
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Success! They actually reprogrammed the PIM according to the TSB, they didn't have to take a joy ride, I haven't heard a backfire yet, and I have to admit that the EV to ICE transition does seem smoother. The engine remains buzzy, and though it might just be my imagination, it seems a little less so now.
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