A 16-year-old driving a Honda Civic suffered serious head injuries when he lost control of his vehicle in the 4300-block of 152 Street Saturday morning.
Surrey RCMP said the vehicle was seen driving erratically while heading north on 152 around 7 a.m. July 28.
After passing on the shoulder, the Civic crossed the centre line and collided with an oncoming Jeep Wrangler.
The southbound Jeep hit the Civic's passenger-side door.
The driver of the Honda was transported to hospital, where he is expected to remain for several days.
The driver of the Wrangler suffered less severe injuries, police said.
Southbound traffic on 152 just before the train crossing at Colebrook Road was blocked off for approximately two hours.
The investigation into the crash is continuing, RCMP said.
As yet, no charges have been laid.