Recently took my JX35 in for scheduled oil change at 3750. Was informed that there was a recall and that they could upload the new software while they change the oil. Was not sure what the update was for other than it did say "brakes". So I figured that it was for the issue about the vehicle breaking when going over bridges. It may have been that but what I did notice is a change in performance and how the vehicle operates. Let me explain: I noticed that when I am driving without cruise I can maintain 65 mph at about 1750 RPM. AS soon as I put it in cruise control it jumped 500 RPM. Found this very odd. Called dealer and Nissan and both said this is a know issue. Well after that computer update this NO LONGER occurs! In fact my gas mileage went from an average of 19 - 20 MPG to 21 - 22 MPG CITY DRIVING!!! Not bad I would say! Thought I would share this snippet in case you haven't had your vehicle in he shop for a while.