"I am so grateful for 18 incredible years of racing in NASCAR. My sport was good. It allowed me to do something I really love, "Johnson said.
"I look forward to next season and celebrate what my last year as a full-time NASCAR Cup pilot will be. I know what this team is capable of and I hope 2020 is one of the best ever."
the highest regard, for his stubborn track and field success and the way he made himself a champion off the track, "said Jim France, NASCAR President and CEO.
"On behalf of my family and the entire NASCAR community, I thank Jimmy for his dedication to NASCAR and, along with his legions of fans, I wish him all the best in his last season."
Johnson won his first five championships from 2006 to 2010, after which he added two more titles in 2013 and 2016. The 10-year success sent him off speed, going over Kale Yarborough's record for winning three straight titles from 1976 to 1978, according to NASCAR.
The seven NASCAR Cup titles of a 44-year-old associate him most of all time with Dale Earnhard and Richard Petty.
"I showed up to pursue a dream and achieved more than I ever thought possible," Johnson said.