An overview of the service intervals applicable to your Porsche is available in the "Warranty and Maintenance" booklet in your vehicle document wallet. Your Official Porsche Centre will also be happy to answer any questions and provide information. Some plans can be downloaded here:
Standard on every Porsche: the warranty.
Every Porsche comes with a warranty. The following page contains an overview of all the applicable warranty periods for Porsche vehicles.
Porsche is one of the few car makers to undertake extensive tyre development and testing, and publish regular manufacturer approvals for summer and winter tyres for all new vehicles. Here's an overview of the relevant approvals in PDF format.