Our surveys take a deep dive into the numerous things that can go wrong with a vehicle. We study 20 potential trouble areas, from nuisances—such as squeaky brakes and broken interior trim—to major bummers, such as potential expensive out-of-warranty engine, transmission, EV battery, and EV charging problems.
We weigh the severity of each type of problem to create a predicted reliability score for each vehicle. To be considered for this list, we must have at least two model years of data in calculating the predicted reliability score.
Based on that analysis, these models are the least reliable. They’re presented in rank order, counting down to the least reliable model. Each is shown with its reliability score on a scale of 1 to 100.
For more details on each model’s reliability history, click through to their respective model pages.
See our complete guide to car reliability and our reliability FAQ for more information on how we survey and analyze reliability data.
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