The UAW-Dodge 400 was run on March 2 at Las Vegas Motor Speedway. Kyle Busch, a Las Vegas native won the pole and led 56 laps in the race before slipping to 11th. Matt Kenseth also ran strong during the race leading 70 laps and was running third with five laps to go when he was spun by Jeff Gordon. Gordon's car hit hard against the inside retaining wall head on at 180 miles per hour, and the wall did not have a SAFER barrier, this caused his car's radiator to fly out from the chassis into the path of oncoming traffic. Kenseth was able to recover from the spin without hitting anything. The wreck brought a red flag on lap 264 as track workers cleaned up, Jeff Gordon walked away sore from the wreck and made the point that SAFER barriers should be installed to the inside walls. Carl Edwards went on to win his second race in a row and the ninth of his career.
Following the race it was announced that the #99 car driven by Edwards had failed post-race inspection. On March 5, Edwards was docked 100 championship points with team owner Jack Roush also docked 100 owner points. Carl Edwards' crew chief Bob Osbourne was fined $100,000 and suspended for six races until April 30. As the 99 team qualified for the Chase for the Sprint Cup, the team did not receive 10 bonus points for the UAW-Dodge 400 victory used for determining the Chase seeding order.