2014 Buick Regal Owner Manual - Page 341

Vehicle Care Removing and Replacing the Floor Mats Pull up on the rear of the floor mat to unlock each retainer and remove. 10-95 Reinstall by lining up the floor mat retainer openings over the carpet retainers and snapping into position. Make sure the floor mat is properly secured in place. Verify the floor mat does not interfere with the pedals.