The crash, which happened back on January 11, 2017, just four days before the Cowboys lost to the Green Bay Packers in the NFC Divisional Round, occurred when Elliott drove his GMC Yukon into Ronnie Hill's BMW 750.
In the suit, Hill says Elliott was obviously at fault because the running back was running late for practice and ran a red light striking his car near the intersection of Gaylord Parkway and the Dallas North Tollway.
Hill says the crash caused $33,000 in damage to his vehicle and claims he suffered injuries.
At the time of the crash, Frisco police said in a statement that the accident was 'minor', but Hill disagrees and says police conspired with the Cowboys to cover up the severity of the crash to assure Elliott would be able to play in the playoff game four days later.
"If anyone had actually reported the impact of the accident and had Elliott been examined he would have most likely been placed in concussion protocol and out for the Dallas Cowboys upcoming playoff game," the lawsuit says.
Hill is suing the Cowboys and Elliott for $20 million.
Elliott is currently holding out of training camp as he seeks an extension from the Cowboys.