The U.S. Government warns 3.8 million Toyota and Lexus owners affected by an urgent recall to "immediately remove driver's side floor mats" after one was suspected of causing a fiery Lexus crash killing a family of four in San Diego.

Toyota says it will order an immediate floor mat recall at the behest of the Department of Transportation after a mat was suspected of snagging a gas pedal on a runaway Lexus, ending with a fiery crash that killed four family members in San Diego. The Toyota and Lexus models affected include:

2007-10 Camry
2005-10 Avalon
2004-09 Prius
2005-10 Tacoma
2007-10 Tundra
2007-10 ES 350
2006-10 IS 250 and IS350

If, for some reason you're unable to pull the mat out of the driver's side of your car and you experience "unintended acceleration" you are to immediately "pull back floor mat. If that doesn't work, stand on brake pedal with both feet." Seriously.

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