We bought a Kenmore refrigerator in July 2006 (side by side with bottom freezer). It was the top of the line.
We just noticed cracks in the liner at the bottom corner, so we contacted Sears and got "sorry", it's out of warrantee. Called the tech department to see if there was an unannounced manufactures recall and/or extended repair. The Tech I spoke to agreed that two years is very early to get this problem (actually shouldn't get this problem at all), but all they can do is recommend a repair kit (#482395).
My solution is to recommend that potential buyers stay away from Sears refrigerators, unless they warrantee the liner for more than a year.