Where is the Transmission filter located?

This transmission does not have a filter it kind of like a Honda transmission where you just change the fluid. here is a guide to help you see what you will be doing and instructions on how to service the transmission in your car in the diagrams below.

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

Fluid Types
Transmission Fluid Type

Type .................... MERCON V XT-5-QM

Capacities

Transmission Fluid .................... 10.0 quarts (9.5 liters) Empty when you service the transmission it should only take about 6 quarts.

Note: Indicates only approximate dry-fill capacity. Some applications may vary based on cooler size and if equipped with an in-tank cooler. The amount of transmission fluid and fluid level should be set by the indication on the dipstick's normal operating range.

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.