Generations are groups of model years where few, if any, changes were made to the vehicle which means their model years tend to break in similar ways. The Encore has 1 generation available in North American markets.
2013-14 Buick Verano Manufactured between 08/08/12 -- 06/20/13
2013-14 Chevy Cruze Manufactured between 08/07/12 -- 08/16/13
2012-14 Chevy Sonic Manufactured between 05/10/11 -- 08/16/12
GM hasn't announced when the heater block recall will begin, but let's hope it happens before snow flakes start falling. To fix the issue, GM dealers will replace the heater cord with a new cord that is rated for temperatures of minus 40 degrees Celsius or, as we here in Vermont like to call it, just another brisk February morning.