The 46-year-old man overturned the vehicle on Hervey Range Road, about 50 km from Townsville, around 11 p.m. yesterday, police said.
Waylon Townson heard the crash and rushed to help.
He did not know at the time that the victim was the cricket star.
“It was stuck in there so I tried to get it out,” he told 9News.
“(I) started CPR and checked his pulse, but I didn’t get much of a response.”
Another neighbor who lived nearby came to the place this morning to drop off a beer and some flowers for the big SUV.
Police said they did not yet know what caused the crash.
Former Australian cricket captain Mark Taylor said it was “another tragic day for cricket”, following the recent deaths of Shane Warne and Rod Marsh.
Sydney Morning Herald Leading cricket writer Malcolm Conn said that Symonds, known as Roy, was “the most athletic cricketer he had ever seen”.
“Incredible athlete, incredible outfielder, brutal with the bat, good with the ball,” he said.
Adam Gilchrist led tributes from other players.
“This really hurts. Think of your most loyal and fun-loving friend, who would do anything for you, that’s Roy,” he tweeted.
The father of two joined the Australian Test team in 2004.
Outside of cricket, he loved fishing with his mates and his young son, Billy.
His wife Laura said: “We are still in shock.”