My 2011 hasn't had many issues. Since I bought it, just the brake light switch recall. An HVAC issue where it blew only hot air.Although I only have 10K on my '13, it has not had any issues, problems, or defects. At that mileage my 2011 GLS had already been in the shop several times under warranty. It had the dim radio display, sticky mirror position switch, and smelly HVAC system. I mention this because it appears Hyundai has been improving on the Sonata's issues.