Honda/GettyJamie Hicks' (b.) 12-year-old daughter made a call that saved their lives Sunday. The mother had a BAL of .18 when arrested.

Terrified as her drunken mom swerved her car down a highway, a 12-year-old Long Island girl dialed 911 from the back seat - and may have saved her life, cops said. 

Jamie Hicks, 49, who raged at her daughter for ratting her out, had a blood-alcohol level of 0.18 - more than double the legal limit - when state police collared her for felony DWI on Sunday night. 

Hicks, of Islip, L.I., also had her 10-year-old son in the car.

 "This young girl made a very brave decision," said state Police Capt. Robert Nuzzo. The dangerous situation on Interstate 84 near upstate Southeast happened almost a year to the day of the horrific wrong-way crash on the Taconic State Parkway. 

Hicks had picked up her two kids from their grandparents' place in Connecticut and was returning home to Long Island. 

"She was acting odd, speaking incoherently and swerving in and out of traffic," Nuzzo said, citing Hicks' daughter's account. The cell phone the daughter used to dial 911 cut out at one point during the call, prompting the operator to call back a number of times. One call was answered, apparently as Hicks was berating the daughter. 

From that call, police were able to locate Hicks' car, which she had pulled over to the side of the highway. 

Hicks was charged under the new Leandra's Law, which makes it a felony to drive drunk with a minor in the vehicle.