Credit is hiding in H&R Block's software
If you're using this software, you won't find the 2010 VW or Audi models listed. So by following directions from their tech support, I manually added the Jetta TDI JSW and on the next page, selected "No Entry" under year, make and model. Then I entered "Date Placed In Service" and hit "Next". It was then on a page where I was able to enter my car's data.
Under "Maximum Credit Allowed" I entered $1,300 and then under "Phase-out Percentage" I entered 100%.
This is a serious flaw in their software, and I was only able to get through this after 1.5 hours of online and phone calls to their tech support. Sheesh.