We've updated our reliability stats for the Xterra to include owner experiences through June 30, 2014 (making them about 14 months ahead of some others).
Repair frequencies, in terms of repair trips per 100 cars per year:
2010 Xterra: 25, low, very small sample size
2008 Xterra: 36, low, very small sample size
2006 Xterra: 48, low, very small sample size
2005 Xterra: 77, moderate, very small sample size
2002 Xterra: 59, low, very small sample size
2000 Xterra: 108, moderate, very small sample size
Next updates in November and in February. The more owners participate, the more comprehensive and precise these will be.
For repair descriptions, the stats of other cars, and to sign up to help improve this information:
Nissan Xterra reliability ratings and comparisons