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Aerio owners are having the most trouble with the brakes (17%), cooling system (11%), and the drivetrain (11%). We've listed the most common owner complaints below. The full list is available on CarComplaints.com.
The Aerio only has one generation which runs from 2002 to 2007. To date, it's earned a PainRank™ of 1.34 which ranks 8th.