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Lexus & Hummer Top 2010 J.D. Power Customer Service Index Study Lexus and Hummer took top honors in their respective categories in the J.D. Power and Associates 2010 Consumer Service Index (CSI) Study. Released this time each year, the CSI rankings (based on a 1,000-point scale) measure...

CSI Study J.D. Power and Associates Reports: Exceptional Service Satisfaction Enhances Dealer and Manufacturer Profitability Through Improved Customer Retention, Even as Vehicle Sales Decline Lexus Ranks Highest in Customer Satisfaction with Dealer Service WESTLAKE VILLAGE, Calif.: 25...