One more question on the battery part number topic:

Is the battery P/N able to be seen in the car, or is it hidden under the metal case? In other words, do I need to see the P/N from the repair order?

I ask because the only visible P/N in the car, I believe, corresponds to the battery case, and not the actual battery. I see it when I remove the plastic load floor behind the grocery shelf. The P/N I see starts with "1" and claims it was built in OH sometime in Jan 2007, which makes sense, as the car was built in Feb 2007. If that's the actual battery, though, it must be of the older design, even though it's been replaced.

HybridVue, did they replace your battery cassettes even though there was no existing problem?