 I am having the same problems that others have noted here and on the Edmunds discussion board about the radiator and the transmission. The tranny is failing, but Nissan of Omaha says they can't find anything wrong despite riding with me and it slipping (acts as if it is in neutral) - goes to 6 RPM and you say at 40 mph for a while - just one example. Woodhouse Nissan confirmed my problem but Nissan of Omaha has to be the one to fix it and so far they won't. The radiator was replaced after it flooded the tranny and they flushed it, but that didn't solve it. There are at least 3 class action lawsuits. I'm not letting it end here. I will keep all boards I post on updated with progress/advice. 