Officials said the juveniles, ages 10, 14 and 17 told investigators the ordeal was supposed to be a prank.
And as the woman slowed her car, two men wearing dark hoodies approached and pulled on her door handles.
Two armed men forced their way into a car at an intersection, robbed the driver, and then posted photos of stolen items on Facebook.
Pittsburgh police are searching for two would-be carjackers who apparently can't drive a stick-shift.
A federal judge has sentenced a Chadbourn man to 30 years in prison for carjacking and gun crimes.
A Chadbourn man faces life in prison after a federal jury convicted him of a 2010 carjacking in Columbus County.
A weekend carjacking landed a suspect in jail and an alleged victim in the hospital. One of the victims says the situation could have been much worse.