Here's an article about the incident:
Greenville County school bus goes off road, hits, destroys mobile home, officials say
The school district said no one was in the mobile home. They said two students were on board, but no one was injured.
Troopers said she was navigating a curve and went off the road. The driver overcorrected and went back onto the road, troopers said.
The school bus driver was given a ticket for going too fast for conditions.
Looking more closely it DOES look like something was around her waist but I don’t see anything like the shoulder harness part of a seat belt. I wonder if school buses have those?