Police in Battle Creek say the pickup’s driver was unable to stop and collided with the bus outside Verona Elementary School about 8:15 a.m. Wednesday.
Georgia-based Blue Bird is recalling 2,500 of its All-American school buses, as well as some transit buses, to fix a problem that could make steering more difficult.
Detroit Public Schools officials say no students were on the bus.
The bus was heading to Brewer Elementary, which is about two miles away from the crash site.
Detroit police say at least four students and two adults were on the bus, and some were injured.
Police were looking for the driver of a Dodge Charge that fled the scene.
Several students have been taken to the hospital after their school bus crashed in Lenawee County.
Police say a 33-year-old man was driving a van on Schuman Street near Cherry Hill when he drove around a school bus that was dropping off students.
Police say a school bus driver lost both of her legs after she was pinned against a guardrail by another bus at a battery charging station in Flat Rock.
A first grader was rushed to the hospital after she was clipped by a car in Monroe Thursday morning.