I know this is an old thread, but this happened within weeks of getting my own Versa sedan (2007, six-speed manual). I was peeved and had it replaced under warranty from my dealer, who suggested it might be my driving style. Odd, but my Pontiac Firebird, Honda Civic, or BMW 328is never had a problem with my "driving style", I instead thought it might be a poor design. Sure enough, less than a month later I had the "click" that other posters mentioned.
Today, I got it fixed up. To make a long story short, drill a hole in the rod that come off of the clutch pedal, slip a washer over it, and put a cotter pin through it. Not coming off now!
Key details if you want to do this yourself:
3/8" washer
3/32" x 1" cotter pin
drill bit (compare to cotter pin)
utility knife (to cut plastic tabs)
A few more pictures of the job "in progress" for those who are curious.
https://goo.gl/photos/fKJAQnm66wYC6Zd56
Maybe $2 in parts for the piece of mind that your clutch pedal won't be failing when your wife is driving the car around!
Blessings,
Austin