the sm3 has received a lot of bad publicity in finland for its reliability issues, mostly caused by technical problems with the tilting system and couplers. vr has tried to mitigate the problem by coupling trains only at termini instead of intermediate stations and switching the tilting system off during winter. the trains will go through an extensive maintenance cycle between 2012 and 2014, which will include changes to the couplers and the tilting system in order to make the train more reliable.