Final answer:
The subject of this question is Business, and the grade level is College. Without the specific information about the minimum required tread depth, I cannot provide a complete answer.
Step-by-step explanation:
The question is about claiming a tire under warranty. Since it involves understanding warranty conditions and requirements, the subject of this question falls under Business. The grade level for this question is specified as College.
To answer the question, we need to know the remaining tread depth required to claim a tire under warranty. Without this information, it is not possible to provide a specific answer.
Please provide the necessary details about the warranty policy, such as the minimum required tread depth for claiming a tire under warranty, and I would be happy to assist you further.