We've updated our reliability stats for the Altima to include owner experiences through September 30, 2014.
Repair frequencies, in terms of repair trips per 100 cars per year:
2014 Altima: 43, moderate
2013 Altima: 35, moderate
2012 Altima: 20, low
2011 Altima: 38, moderate
2010 Altima: 11, low
2009 Altima: 44, low
2008 Altima: 41, low
2007 Altima: 31, low
2006 Altima: 95, high, very small sample size
2005 Altima: 73, moderate
2003 Altima: 69, low, small sample size
2002 Altima: 91, moderate, very small sample size
We have two additional statistics, "Nada-odds" and "Lemon-odds", to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop:
2013 Altima: 75, < 1
2012 Altima: 79, < 1
2010 Altima: 90, < 1
2008 Altima: 71, 3
2007 Altima: 71, < 1
Additional participants always helpful (especially if you see "small sample size" next to the year, or no stat at all).
To view the repairs behind these numbers, check the stats for other cars, and sign up to help improve this information (next update in February):
Nissan Altima reliability ratings and comparisons