Predicted reliability for the Tesla Model S has fluctuated based on what problems were reported by owners. Source: Consumer Reports Auto Reliability Surveys 2013-2018Predicted reliability for the Tesla Model S has fluctuated based on what problems were reported by owners. Source: Consumer Reports Auto Reliability Surveys 2013-2018

U.S. auto companies such as General Motors, Tesla and Ford did not fare well this year in Consumer Reports’ reliability rankings as readers reported considerable mechanical trouble with their vehicles.

All U.S.-based brands fell to the bottom half of 29 brands in the rankings. Cadillac is the worst-rated domestic manufacturer and ranks near the bottom at 28. Lexus, Toyota and Mazda, in that order, continue to be the best for new car reliability in the survey. Seven of the top 10 brands in this year’s reliability rankings are from Japan and South Korea, including Subaru, Kia, Infiniti and Hyundai.

Audi, BMW and Mini round out the top 10. Audi and BMW both declined from last year while Porsche, Volkswagen and Mercedes-Benz finished midpack. The worst ranking was assigned to Volvo.

Tesla dropped six spots from last year and now ranks 27 out of 29 brands. The Model S dropped to below average reliability this year, and its overall score is no longer high enough to be recommended by Consumer Reports. Owners reported suspension problems and other issues that included the extending door handle. The Model X SUV remained ranked “much-worse-than-average” for reliability, with ongoing problems including the falcon-wing doors and center display screen. The Model 3 sedan has average predicted reliability based on owner feedback.

When compared to the average non-turbo engine among 2016 to 2018 models, Lexus makes the most reliable turbo powertrain, followed by Honda and Porsche. On the other end of the spectrum, Hyundai and Mini have the most problematic turbos.

Consumer Reports received more than 500,000 responses to the annual survey of its subscribers, and it uses the data from the 2000 to 2017 model years to predict the reliability of 2019 vehicles.

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