Trailer towing with the 6.4L or 6.2L Supercharged engine is not recommended.
Other information:
To load your vehicle properly, first figure out its empty weight, axle-by-axle
and side-by-side. Store heavier items down low and be sure you distribute their
weight as evenly as possible. Stow all loose items securely before driving. If weighing
the loaded vehicle shows that you have exceeded either GAWR, but the total load
is within the specified GVWR, you must redistribute the weight...
Before towing, practice turning, stopping, and backing up the trailer in an area
located away from heavy traffic.
Automatic Transmission
Select the DRIVE range when towing. The transmission controls include a drive
strategy to avoid frequent shifting when towing...