Hi all,
We picked up our 2010 Nox this past January after a two month wait for a custom build. Just 200 miles into our V6 2LT AWD's life, the USB connection interface for MP3/Iphone failed. Overall, we've been loving the car but have had trouble with our dealer and their knowledge of the electronics and common Nox problems. It took several visits to our dealer, (local, not purchasing dealer) including the special order parts, to remedy the problem with the USB interface. Since the final fourth visit for the repair around July 15, 2010, it's so far so good. But here's the crazy part.
Since the repair to our USB port, really the ic chip/circuit board that controls said device, it appears that another shared part of the electronics is way out of calibration. Our gas mileage, never great to start with on the V6, now appears after several tanks of fuel and much careful note taking and mileage checks, to be very low. My wife is pretty freaked by her observations. She's no numbers slacker. She's got a Ph.D in economics. Numbers and formulas are her daily routine, so she can do pretty well figuring out something basic like this.
(Note: we also drove the car for 4 months before getting organized to have the USB problem repaired. We had plenty of time to calculate and observe mileage in all conditions. )
I've personally filled the tank, reset the average mileage on the onboard computer, sat and idled for less than 3 minutes and watched the average mileage go from 26mpg (on reset) to 12mpg in that time. Prior to the USB/IC replacement, we were getting minimum of 17 city, and had not seen this cliff like drop of mpg's. We never got less than 17 average.
Has anyone experienced anything similar? Please forgive all the details. I just wanted to be as clear as possible.
Overall, we are loving the car. It's just freaky when IC's control so much of engine performance and fuel consumption.