"I am so grateful for 18 incredible years of racing at NASCAR. The sport has been good to me. It has allowed me to do something I truly love," Johnson said.
"I look forward to next season and will celebrate what it will be like for me as a full-time NASCAR Cup driver last year. I know what this team is capable of and I hope 2020 is one of the best so far."
"NASCAR history will always have the utmost respect for Jimmie Johnson for his hard work on the racetrack and the way he has acted as an off-track champion," said Jim France, president and CEO of NASCAR.
"I thank my family and the entire NASCAR community, thank Jimmie for his dedication to NASCAR and, along with his legions of fans, wish him all the best in his final season."
Johnson won his first five back-to-back championships from 2006 to 2010, then added two more titles in 2013 and 2016. The ten-year success that sent him far exceeded Cale Yarborough's record of winning three straight titles from 1976 to 1978 ., NASCAR states,
The 44-year-old, with seven NASCAR Cup titles, most connects him to Dale Earnhardt and Richard Petty.
"I showed that I was chasing a dream and I achieved more than I ever thought possible," Johnson said.