The Worst Hyundai Generation
A generation is a collection of years for a specific model where the design, parts, and manufacturing process mostly stay the same. Generations tend to have the same problems and reliability issues.
The least reliable Hyundai generation is the 6th Generation Sonata (2011-2014). Its PainRank™ of 68.11 is based on data from 1312 owner complaints, mostly about the engine.