We've updated our reliability stats for the Grand Cherokee to include owner experiences through September 30, 2013.
Repair frequencies, in terms of repair trips per 100 cars per year:
2014 Grand Cherokee: 72, high
2013 Grand Cherokee: 37, moderate, small sample size
2012 Grand Cherokee: 48, moderate
2011 Grand Cherokee: 47, moderate
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:
2012 Grand Cherokee: 65, 4
2011 Grand Cherokee: 59, < 1
We'll have further updates in February and in May. The more owners participate, the more comprehensive and precise these will be.
To see how competitors compare, and to sign up to help improve this information:
Jeep Grand Cherokee reliability ratings and comparisons