It may be the extended storage switch. Search the forum as their is another thread that may lend some insight. It is located in the fuse box on the passenger side (inside glove box). http://www.nissaguide.com/nicon-914.html
Glad I found this thread. We have a 2011 and the clock thing is driving me nuts. I tried pulling out and pushing it back in and it still will not hold the clock update. I'll get another 10 amp fuse and see if that works.
I tried searching headlights/headlight switch. Here is my issue the headlight switch on my 2002 Pathfinder SE works great. I was leaving it in the auto position but now the lights won't go out when I lock the car. In the past they would turn off after a few minutes but not now.