Officials determined the cause of the crash that killed Walker and Roger Rodas was the high rate of speed Rodas was driving the 2005 Porsche Carrera GT when he slammed into a light post on a street in Santa Clarita, Calif.
"The Carrera GT was unsafe for its intended use by reason of defects in its manufacture, design, testing, component and constituents, so that it would not safely serve its purpose," the lawsuit said.
Kristine Rodas is suing for unspecified damages and has requested a jury trial.
Walker was best known for his work in the Fast and the Furious car-racing film franchise.
Notable deaths of 2014 [PHOTOS]