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.
The radio display gets really bright for no reason at times. This usually occurs before some other electrical issue rears its head - like the locks not locking or the wipers not turning off or the turn signal blinking 2x the opposite direction when you try to turn it off. I tried to get the technicians to look into this as a piece to the electrical issues in the car and they just go "uh, huh" and dismiss it because its random and they don't see it happening.
A D V E R T I S E M E N T S
The radio display gets really bright before an electrical issue continues. Was told to replace car battery. This did NOT fix the issue.
- duket, Eldersburg, MD, US