The car that fatally crushed "Star Trek" actor Anton Yelchin had been under recall over fears that it could roll off without warning, it emerged on Monday.

Friends discovered the Russian-born actor pinned against a brick mailbox pillar and security fence at his California home by his Jeep Grand Cherokee in the early hours of Sunday.

Investigators said the actor, who was just 27, had momentarily got out of the vehicle when it rolled backward down the steep driveway toward him.

READ: 'Star Trek' actor Anton Yelchin dies in car accident

The US National Highway Traffic Safety Administration (NHTSA) said in February that 2015 models of the SUV like Yelchin's could continue to move after drivers thought they had locked them in "park," and linked the issue to more than 100 crashes.

Manufacturer Fiat Chrysler's US unit issued a recall for hundreds of thousands of Jeep Grand Cherokees and other models in April to address the problem.

However, FCA US said it had not found a permanent remedy and mainly advised owners to double-check that their car was in "park" as intended.

"Drivers thinking that their vehicle's transmission is in the PARK position may be struck by the vehicle and injured if they attempt to get out... while the engine is running and the parking brake is not engaged," the NHTSA said.

No deaths had been linked to the problem but injuries reported included fractured bones and other problems that required hospitalisation.

Rollaway vehicles killed 370 people between 2008 and 2011, according to the NHTSA, an average of around 93 people a year, while some 2,000 people were injured annually during the same period.

"It is premature to speculate on the cause of this tragedy," FCA said in a statement, adding that it was investigating.


'Incredible talent'

Yelchin moved to the United States when he was six months old with his parents, who were star figure skaters with the Leningrad Ice Ballet, and made his film debut at age nine in "A Man Is Mostly Water."

His breakout performance came in the 2006 crime thriller "Alpha Dog," and his movie credits include J.J Abrams's three "Star Trek" films and last year's critically acclaimed "Green Room."

Abrams described Yelchin as "funny as hell and supremely talented," while "Star Trek" co-star Zachary Quinto said the actor was "one of the most open and intellectually curious people" he knew.

"So enormously talented and generous of heart. Wise beyond his years, and gone before his time," Quinto posted on photo sharing platform Instagram.

Justin Lin, who directed "Star Trek Beyond," the third in the reboot trilogy due out next month, paid tribute to Yelchin's "passion and enthusiasm."

Susan Sarandon, who starred alongside Yelchin in the 2008 coming-of-age comedy "Middle of Nowhere," described the actor as "an original."

"One of the most curious, funny, sweet people I've ever known," she wrote on her Facebook page.

"He was a searcher, an incredible talent and a loyal and loving son. Any time would be too soon for his departure from this plane, but this is an unforgivable and unbearable loss."

Horror novelist Stephen King and actors William Shatner, Tom Hiddleston and Anna Kendrick noted Yelchin's immense talent and passion.

Bryce Dallas Howard, his co-star in 2009's "Terminator Salvation," described him as "an angel on earth whose light will never be extinguished."

Milla Jovovich, who acted opposite Yelchin in 2014 Shakespeare big-screen adaptation "Cymbeline," described him as her "brother" and said she and her family were "destroyed" by his death.