Help. After body shop repair, engine will not stop idling and idles rough.

Just picked up my 2004 Prius from the Toyota dealer body shop. The driver's side was scraped by someone who wanted to be in my lane. Fortunately, we were only going 35 mph. The rear door skin had to be replaced, and most of the side had to be prepped and painted. There are a few silly mistakes: they forgot to replace the driver's door plug, forgot to replace a lower clip, and smudged a tiny area new paint on the bumper. I brought that to their attention and they are going to take care of it... they have to order the plug and clip.

However, as soon as that conversation was complete, it was time for them to close shop. I sat in my Prius, started it, and the check engine light was on. Wasn't on when I dropped it off for the repairs. Also, on the way home, I noticed the engine wasn't turning off when I came to a complete stop (even though the animation says it was off). At idle, the engine is also rough. Looked at the charge bars, and well, there were only two bars showing. I thought perhaps, though it's not done this before without the animation screen showing it, the engine was on merely to recharge the traction battery. On the way home, the traction battery returned to full charge (green), but the engine still was not turning off when the vehicle was at a complete stop... not was it turning off when coasting... and when arriving home, even with the car in park... and still idling rough. All the while, the animation on the screen is indicating the engine should be off.

When I replaced the traction battery three years ago, I also replaced the 12v with an yellow top Optima. I wouldn't think the Optima is already going bad. I also do not believe in coincidence. I wonder if perhaps some bad fumes have tainted the MAF, or who knows.

Any ideas after reading my rather lengthy post?

 

On the way to the office this morning, and out for lunch, the engine began behaving normally, and turned off at stops and while in park.

Fuel cap is tight... just for grins I turned it until it clicked twice more. CEL is still on.

Placed car in IGN via instructions above, tested with the meter and the reading was 11.91 VDC. I would expect it to be upwards of 13.0 to 14.0 VDC. Did the shop kill my Optima 12V battery? If so, how do I handle that situation? I left a message for them yesterday evening once I was home. The shop manager called today, but I am waiting to return his call for an informed course of action.

What I forgot to add above is I had to "reset" the windows when I first climbed in. Meaning the auto up/down function wouldn't work and I had to take the driver's window all the way down and back up for the auto function to work.

 

Thanks guys. I hope the Optima does return to its normal range after a few starts, drives, etc.. After my last post, I also discovered my satellite radio presets were all reset to factory as well. My guess is that edthefox6 is correct, and they drained my battery, then had to jump/charge it. I am returning to the shop today to inquire when a few items will ship in (they forgot to install a clip, rubber plug in the end of the driver's door). Also, if there is something they can do for the smell. I've left the window down for over a day, and the chemical smell that has permeated the inside of the car still makes my nose burn.

 

I spologise for the delay in responding again. Caught some sort of bug going around and have been down over the weekend. When I confronted the dealership, pointing out that I had to reset my window functions and my sat radio presets were wiped, he had no other option but to agree the battery must have been depleted while they were working on it. They ran a diagnostic, and the uploaded pdf shows the results: codes C2318 and P0505, plus other information. No work performed except resetting the check engine light.

The car has been running fine and is back to its usual 53 mpg.