Transmission fluid and filter replacement

Welcome to 2CarPros.

Based on normal service, the manual indicates the following.

Inspect fluid at 30,000, 60,000, 100,000, 120,000 and so on. It doesn't indicate a specific mileage to service. However, although that is what is indicated, I always recommend every 50,000 miles under normal conditions.

Under sever service, they indicate 60,000 to service and then again at every 60,000 mile interval.

Here is a link that shows in general how to service an automatic transmission:

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Let me know if this helps.

Take care,
Joe