The 25-year-old actress was travelling on the Pacific Coast Highway when her Porsche crashed into an 18-wheel truck on June 8. The driver of the truck, James, has hired a lawyer and sued Lohan, reported TMZ online.
James accused that Lohan's people tried to give him money on the spot to dismiss the case. In defence, Lohan claimed James was responsible for the crash, telling friends that the truck had cut her off.
However, she has since changed her statement saying the brakes were not working properly on her rented car.
As a result police are apparently writing up a report that will include Lohan's possibly untruthful tale.
In addition, lying to police could trigger a probation violation in her shoplifting case, which means she faces two reasons to be sent to jail.
"Lindsay is sticking with the 'truck cut me off' story, but with a twist, she claims she slammed on the brakes, but nothing," a source said.
Following the crash, Lohan was taken to hospital and after being given the all clear, she returned to work to carry on filming movie "Liz & Dick", in which she plays Hollywood legend Elizabeth Taylor.