Follow these instructions to keep the ATF cooler cleaner working properly:
Replace the two magnetic nonbypass spin-on filters after every 20 hours of use, based on the hour meter, or when you notice a restriction in the ATF flow.
Check the level and condition of the fluid in the tank before each use.
Replace the ATF in the tank when it looks dark or dirty.

Disassembly
Compress the damper spring, then remove the nut (A) while holding the
damper shaft with a hex wrench (B). Do not compress the damper spring more
than necessary to remove the nut.
...
Driving with the Paddle Shifters (Sport only)
Using the Paddle Shifters in D position (D-Paddle Shift Mode)
When you are driving in D position, you can shift the transmission up or down
manually with the paddle shifters.
To shift up or down ...
Using the Tailgate Open Handle
Models with remote transmitter
When all the doors are unlocked, the tailgate
is unlocked.
All models
Pull up the tailgate open handle and lift open
the tailgate.
To close the tailgate, grab ...