A vehicle dependability study of owners of 3-year-old cars and trucks gave Lexus the highest marks, as the overall quality of 2010 model vehicles improved to record-high levels, Reuters reported.

The study, conducted by J.D. Power and Associates, found a five percent improvement in quality, falling to 126 problems per 100 vehicles, down from 132 last year.

Toyota Motor Corp's luxury brand Lexus led the pack with a score of 71 problems per 100 vehicles.

"The continuous improvement in long-term dependability means consumers should have more confidence in three-year-old vehicles, whether they are keeping their current vehicle or shopping for a used car," David Sargent, vice president of global automotive at J.D. Power, said in a statement, according to Reuters.

More than half of vehicle owners who don't experience problems with their vehicle stay with the same brand for their next purchase, Reuters reported. That loyalty slips to 41 percent after three or more problems are experienced.

Of the 31 vehicle brands measured in the survey, 21 improved their scores, with U.S. domestic vehicles improving slightly more than their foreign imports, Reuters reported.

Lexus led the survey for the second consecutive year. Porsche (94 problems per 100 vehicles) came second. Lincoln and Toyota tied for third with 112 problems per 100 vehicles, followed by Mercedes-Benz (115), Buick (118), Honda and its luxury brand Acura (119 and 120, respectively).

The lowest scoring brands in the survey were Volkwagon (174 problems per 100 vehicles), Jeep and Mitsubishi (178 each), Dodge (190) and Land Rover (220).

The Lexus RX had the highest dependability among individual models with just 57 problems per 100 vehicles, the first time an SUV or crossover topped the list, Reuters reported.  

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