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STS owners are having the most trouble with the electrical (36%), engine (24%), and the airbags & seat belts (12%). We've listed the most common owner complaints below. The full list is available on CarComplaints.com.
The STS only has one generation which runs from 2005 to 2011. To date, it's earned a PainRank™ of 1.38 which ranks 26th.