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350XTZ »
https://forums.nicoclub.com/350xtz-u208323.html
Thu Aug 16, 2012 9:53 am
I've had a 2003 and 2005 350Z with the same issue, and now a 2007 that has had the problem for 5 years. I keep bringing it back to the dealer, they've replaced the motor and reset it over and over. It corrects the problem for a few months, then it starts acting up again. They told me that the service bulletin says the cause is either loss of power, or putting the window down partially will cause it to loose it's memory, and start going down half way when you put it up with the auto-up switch. But this only seems to happen to the passenger side window. It's back at the dealer again today!