Christian Guevera is about 3-feet tall, weighs about 30 lbs. and has long, shaggy brown hair and brown eyes. He was last seen wearing pajamas.
Police say he was abducted by two men wearing ski masks who were driving a white Chevrolet Suburban.
The boy's mother told police she was returning to her home after dropping another child at a school bus stop when she was attacked by two Hispanic men.
The attackers used a stun gun on her and took the child, the mother told police.
The Associated Press contributed to this report.