Hello @dg234
Correct! The SwissPass card is always valid for 5 years and renews itself after it's expired. If you want to buy any subscription or tickets for your trip, you can use your SwissPass login or card. The subscriptions or SwissPass card based tickets will automatically be uploaded on your passes.
I look forward to welcoming you back to travel with us after this pandemic. 🙂
Kind regards, VlaznimA.