We have updated results for the Liberty to include owner experiences through June 30, 2010. Other sources of car reliability information won't cover the more recent months until the summer or even fall of next year.
Repair frequencies, in terms of repair trips per 100 cars per year:
2007: 178, worse than average, very small sample size
2006: 126, worse than average; common failures of window regulators for the 2006s and 2007s, but not earlier; also a couple reports of serpentine belt idler pulleys seizing
2005: 38, better than average
2004: 66, about average
2003: 88, about average
2002: 50, better than average
Decent sample sizes only for the 2004 and 2005, so these are the most precise results.
Thank you, once again, to this forum and everyone who has been helping. We'll have further updates in November and February. With more participants we could provide more precise results and cover all model years.
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Jeep Liberty reliability comparisons