The Star Trek star was killed in a freak car accident in June (16), when he was pinned between a brick pillar and his vehicle after it rolled backwards down the steep driveway of his home in the San Fernando Valley, California.

On Tuesday (02Aug16), Victor and Irina Yelchin sued executives at the car company, alleging the gear selector in the 27-year-old's Jeep Grand Cherokee was defective.

"Anton Yelchin was crushed and lingered alive for some time, trapped and suffocating until his death," the lawsuit reads.

"Anton was our only son and was a remarkable human being," Victor added at a press conference on Tuesday. "It is wrong, it is against nature when parents bury (their) own child."

Following the accident, Fiat Chrysler chiefs launched an investigation into Anton's incident, while they were also hit with a class action lawsuit from fellow car owners days after the actor's accident.

On Tuesday, the Yelchins' attorney, Gary A. Dordick, revealed a recall letter for the vehicle was sent to the actor a month before his death and a week after he was killed.

"The safety recall was way too little and way too late," Dordick said. "We hope this lawsuit will teach them a lesson."

Victor and Irina are seeking unspecified damages. Bosses at the car company would not comment on the lawsuit because they had not yet been served.

"(Fiat-Chrysler) extends its sympathies to the Yelchin family for their tragic loss...," a statement reads. "FCA US urges customers to follow the instructions in their owners manuals and the information cards sent with their recall notices. These instructions include advising customers to set the parking brakes in their vehicles before exiting."

The lawsuit comes a day after his parents filed papers to seek control of his estate since the young actor did not leave a will. Anton's estate totals around $1.4 million (£1.05 million), including $731,000 (£548,000) in equity on his Los Angeles home and $641,000 (£480,430) in cash and personal property.