Here are the rules for determining if a dependent must file a return.
If they have:
Unearned income over $1,050
Earned income over $12,000
Gross income more than the larger of $1,050, or earned income up to $11,0650 plus $350
So, yes, given the information you provided she should file a return but she must indicate on her return that someone else will claim her in 2018. She will provide this information when entering her personal information.
