J.D. Power and Associates has just released its 2009 Vehicle Dependability Study... and it is a bombshell. For the past 14 years, including the most recent 2008 Vehicle Dependability Study, Lexus has sat at the top of the chart. In a significant upset this year, Buick and Jaguar have tied for top ranking (with just 122 problems per 100 vehicles) dropping the premium automaker Lexus (126 PP100) down to third place. The top five are rounded out by Toyota (129 PP100) and Mercury (134 PP100).
The Vehicle Dependability Study is designed to accurately measure problems experienced by original owners of three-year-old (2006 model year) vehicles. J.D. Power based this year's results on responses from more than 46,000 original owners of 2006 model-year vehicles. For 2009, the study has also been redesigned to include 202 different problem symptoms across all areas of the vehicle. Scores are based on the number of problems experienced per 100 vehicles (PP100), with lower scores reflecting higher vehicle quality. The complete J.D. Power press release and charts can be found after the jump and in the gallery below.