I've got a problem with the ventilation system where it makes a squealing noise on all the settings. The car started doing this the second day we owned it, but the dealer assured us it would be a simple fix. Well after waiting for 3 weeks for a new ventilation fan to come from parts, it was replaced and the damn squealing noise continued. The dealer then called the Nissan hotline and now they have my whole damn dashboard disassembled and still can not figure out what the problem is. They think it could be the heater core not sealed correctly, but are still not sure. Now, I'm in a damn rental and if the problem is ever fixed, the car will probably be a damn rattle trap from the dash being disassembled twice already. My car was built in early Sept. so it was probably one of the first ones off the assembly line. I've owned about 10 cars, most new, over my lifetime and never had to deal with a problem like this.