A cab plowed into a teenage cyclist in upper Manhattan Sunday afternoon, authorities said.

The taxi was heading south on Manhattan Avenue when the 13-year-old boy blew the light at West 108th Street and was struck at around 3 p.m., cops said.

He was taken to Harlem Hospital, where he underwent surgery to relieve pressure in his head. He was in critical but stable condition.

The driver, 57, remained at the scene and police don’t believe there was any criminality.