I have gotten a couple different answers on this question so sitting confused. I bought my pathfinder used in 2009 and have had almost no issues. The only thing I can't get resolved is how my 4-hi should shift back to 2 wheel drive. It seems that no matter how fast/slow steady etc. I am, my vehicle will not shift out of 4x4 unless I turn a corner or similar action. If its icy in town and want to head on the highway, I always have to find an approach pull in and turn around to go back in 2wd. Or pull into a parking lot and drive out again. The dealership mechanic told me it was how a 4x4 is suppose to work. I've driven lots of other 4x4s and they always have been able to shift on the fly going in a straight line down the road. I asked a co-worker who's an ex-GM mechanic and he said something was probably wrong with the vacuum setup. My extended warranty will soon run out so I want to resolve it if there is a problem.