Two families involved in a two-vehicle accident that left a grandmother and her two grandchildren dead have sued a local auto shop and General Motors in a wrongful death lawsuit alleging they sold a defective tire to one of the families.

Maria Guadalupe Zamora, 49, and her grandchildren, Ariel Castillo, 2, and Reynaldo Alvarado, 6, both of Port Isabel, died from injuries they received in the Sept. 2, 2020 accident on FM 803 north of St. Francis Street in Los Fresnos.

The Texas Department of Public said Zamora, who was driving a gray Dodge Magnum, was traveling south on FM 803 when her vehicle was hit head-on by a black GMC Yukon, operated by a female driver, that was heading north.

Authorities reported that the left tire on Yukon driven by Griselda Calixto blew out which caused the driver to lose control and veer head-on into the other vehicle.

The lawsuit is filed by the Zamora and Calixto families.

The owner of El Guero Auto Parts and Auto Sales in Los Fresnos – which is named in the lawsuit – said she did not sell the tire to Calixto. Veronica de la Garza said they don’t even carry the aluminum cast wheel that was said to be defective.

A spokesman for General Motors said since he did not have information on the lawsuit he could not comment at this time.

The families are seeking unspecified damages.