On 26 December 2017, Falkholt was involved in a car crash which killed both her parents instantly. As the vehicle burst into flames, both Jessica and her sister Annabelle, aged 21, were pulled out of the vehicle alive, but Annabelle died on 29 December in Liverpool Hospital. The 50-year-old driver of the other vehicle, who was also killed, was reportedly a serial traffic offender. His car failed to negotiate a curve on the Princes Highway, near Sussex Inlet, and travelled into the path of the Falkholts' car. The Falkholts were returning to Ryde after attending Christmas celebrations. Officials confirmed the driver was returning home to Ulladulla, after visiting a methadone clinic in Nowra. Police are investigating whether the drug was a factor in the crash, among other contributing factors.