A young woman from Le Roy said she believes she fell asleep before her car went off the road on Route 5 in Stafford at 11:22 p.m., Thursday.
The 2003 Dodge sedan became fully engulfed in flames after hitting a mailbox and then an earth embankment.
Marisa B. Fox, 20, of South Street Road, Le Roy, suffered minor injuries in the accident, which was investigated by Deputy Frank Bordonaro.
No citations were issued.
Stafford Fire Department responded to the fire call and Mercy EMS assisted at the scene.