Her parents and younger sister - whom Falkholt was in the auto with - each died as a result of the accident, as did the other car's driver, Craig Whitall.
Vivian and Lars were tragically killed instantly in the crash, while Jessica and Annabelle were pulled form the auto by bystanders.
The life support of Home & Away star Jessica Falkholt has been switched off two weeks after her family was involved in a horrific Boxing Day vehicle crash which also claimed the lives of her parents and sister.
Annabelle died in hospital three days later, and Jessica had remained in a coma following several surgeries.
The decision to end her life support came a day after the funeral service for the rest of her family.
'Everything we have done and every decision we have made has been done with the advice of doctors and social workers.More news: Israel OKs Over 1100 West Bank Settlement Units
'We're not going to know much about Jessica's real condition for a while, ' a relative told Daily Mail Australia in December.
Paul Ponticello, Vivian's brother, gave a eulogy at the funeral.
"Whenever he'd ask to drive somewhere I'd suggest a time for an average driver and add on some additional time for the "Lars factor" because he was so careful". He also spoke of his anger and confusion over his family members' tragic ends, saying that "their lives on this earth ending on a highway makes absolutely no sense". They are together and always will be.
The family was remembered as an inseparable, radiant group.
Commenting on the tragedy, a Twitter user lamented: "So sad to hear about Jessica Falkholt, who was Hope in Home And Away, and her family's fatal auto accident".
The coronial investigation into the crash will focus on whether Mr Whitall was under the influence of drugs at the time of the crash.