Tl*the contact owns a 2008 toyota scion xb. the contact started the ignition and applied pressure to the brake pedal, followed by an unintended forceful acceleration. the driver side floor mat was underneath the brake pedal, and it covered the accelerator pedal surface. the engine was turned off immediately. the failure was contributed to a floor mat clip that disengaged from the floor which resulted in the movement of the mat. the vehicle was taken to an authorized dealer for diagnostic testing. the vin was rejected from the system. the vehicle was inspected by the manufacturer's engineer who replaced the floor mat clip. the failure mileage was 31,688.