Parked the car outside at the Burbank airport Friday morning, came back today (Sunday) at noon. It was fairly warm the last two days, but not scorching. The HCH1 started up normally (not with the starter motor). Got on the highway to go home and noticed that the IMA light was on. A little later I noticed that the check engine light was also on (solid, not blinking). I'm not really sure when they came on because there was a lot of glare and it wasn't easy to see either of them. Anyway, they stayed on for the 30 minute ride home. The car drove normally, with the SOC going up and down like it usually does, and both boost and regen showing up. I though maybe the 12V was going, but measured it right after getting home and it was around 12.3V with the motor off, which isn't terrible. Will check it again later. Anything else that would tend to make both an IMA and CEL come on at the same time?