With 99 problems per 100 vehicles, Lexus was the leading marque in the study.
Lexus and Porsche came out on top as both had 100 problems or less for every 100 vehicles. Ratings are based on the number of reported problems per 100 vehicles.
"For the most part, automotive manufacturers continue to meet consumers' vehicle dependability expectations", said Dave Sargent, Vice President, Global Automotive at J.D. Power.
"The results of the J.D. Power Vehicle Dependability Study demonstrate Kia's continued commitment to quality and in building world-class products that offer tremendous value to our customers", said Greg Silvestri, head of service operations, Kia Motors America (KMA).
This year saw the first increase in dependability since 2013. "A nine percent improvement is extremely impressive, and vehicle dependability is, without question, at its best level ever".
Lexus is the most dependable vehicle brand for the seventh consecutive year in J.D. Power's annual survey.
Consumers reported the most problems with their vehicles' infotainment systems.
"All FCA US brands improved their scores year-over-year in J.D. Power's 2018 Vehicle Dependability Study, with the exception of the Chrysler Brand", FCA U.S said in a statement.
Although still well below the industry average of 142 PP100, Fiat showed the biggest improvement of any automaker in this year's study, with the company seeing 106 fewer PP100 than last year (now at 192 PP100).
Consumers who buy new vehicles tend to still be happy with them after three years of ownership, according to the J.D.
Toyota was also a standout with six segment winners, the most of any corporate group: Lexus CT, Lexus ES, Lexus GS, Lexus RX, Toyota Prius and Toyota Tacoma. Other models receiving segment awards are the Dodge Challenger, Ford Super Duty, Ford Expedition, Honda Odyssey, Hyundai Tucson, Kia Rio and Mercedes-Benz GLK-Class.