Dipstick location

Hello,

This Mountaineer does not have a transmission dipstick. Instead, it has a plug that allows checking and addition of transmission fluid.
The plug is located on the transmission pan under the driver side of the vehicle.
It is a T30 torx bit, that you will need to remove the plug. If there is excess fluid, the excess amount will spill out.
To fill it, you will have to use a pump. Basically, add till it back flows excess fluid.

I have attached the fluid check and changing process below.

Please let me know if you have any questions.
Thank you.

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