CarComplaints.com Notes: The 2011 Sonata has a seriously defective engine that seizes without warning. It was awarded the dubious honor of being the first CarTalk / CarComplaints Turd of the Week in late September 2015.
A class action lawsuit was filed in May 2015 against Hyundai that claims the 2.4L Sonata engine is defective. More info here.
Curious how the 2011 Sonata compares to other years?
Check out our Hyundai Sonata overview to see the most problematic years, worst problems and most recently reported complaints with the Sonata.