Emergency services were called to the Bruxner Highway, Piora, after reports of a crash at 9.30pm yesterday, Monday, September 9.
At the scene, police were told that a BMW X3 left the roadway on a bend before crashing into trees, causing a tree to fall and block both lanes of the highway.
The driver and sole occupant of the car, a 44 year old woman, was taken to Lismore Base Hospital for observation.
As inquiries continue, police urge anyone with information or dashcam footage to contact Crime Stoppers on 1800 333 000.
The information in this report was provided by NSW Police.