The No. 10 NASCAR Sprint Cup Series team of Stewart-Haas Racing has received a written warning for a rules infraction discovered during the opening day of Speedweeks, NASCAR announced Wednesday.
The warning falls under NASCAR Rule Book Section 12.1: Actions detrimental to stock car racing.
The actual infraction involved an unapproved left-side driver heat shield, which violated Section 220.127.116.11.2.1.b: “The outer exterior exhaust heat shield panel must follow the horizontal surface plane of the left side floorboard forward section to the bottom edge of the left side toe board.”
The violation was discovered during inspection on Feb. 13 at Daytona International Speedway.
Danica Patrick is the driver of the No. 10 Stewart-Haas Racing GoDaddy Chevrolet.