I think if it was actually going into 4Lo it would tear the TC up. It may be indicating it is in 4Lo but actually it isn't.
2006 Steel Blue 5.7L HEMI Limited 4x4 Build Date: June 9, 2006 Hour 14
Interior: Dark Slate/Light Graystone with Saddle Brown Leather Seats
Quadra-Drive II, NAV, DVD, Trailer Tow Group IV, Off-Road Group II, Remote Start, UConnect, Rear Backup
Camera, Chrome Wheels, Magnaflow cat-back exhaust, Daytime Running Lights enabled