Four cars, including one towing a boat and another fuelled by LPG, collided in the northbound lanes of New Illawarra Road in Lucas Heights, around 8.30am on December 29.
Technical rescue firefighters removed the sides of two cars to free those trapped inside.
All people involved in the crash, including two young children, were assessed and treated by paramedics.
Superintendent Adam Dewberry from Fire and Rescue NSW (FRNSW) says this is a timely reminder that calling Triple Zero (000) when you are involved in or see a crash can be the difference between life and death.
