* No immediate change: Many health insurance plans for dependents don't have academic performance as a condition for coverage. Your parents' insurance likely continues regardless of your grades.
* Loss of dependent status (less likely, but possible): Some plans define dependent status based on enrollment status as a *full-time student* making satisfactory academic progress. "Satisfactory" is usually defined by the insurance company and might include maintaining a minimum GPA or a certain number of credits. If your policy includes such a clause and failing all classes is considered unsatisfactory academic progress, your coverage could be terminated.
* Loss of dependent status in the following semester: Even if there's no immediate impact, your parents might need to re-evaluate your dependent status for the next semester. If you're no longer enrolled full-time (or are considered not making satisfactory progress), you may lose coverage at the start of the next academic term.
What to do:
The best thing to do is to check your parents' insurance policy documents. Look for the section describing dependent coverage eligibility requirements and definitions of dependent status. This will clarify the specific conditions that govern your coverage. If you cannot find the answer there, contact your parents' insurance company directly to inquire about the impact of failing all classes on your coverage.