yep the hidden strap under the dash took me quite a while to find when trying to put it on flatbed.
The neutral button seems to only work for a few seconds, not sure what the point of that is yet.
It should shift your transfer case into neutral, used for flat towing. From the manual:
1. Bring the vehicle to a complete stop on level ground,
with the engine running. Apply the parking brake.
2. Press and hold the brake pedal.
3. Shift the transmission to NEUTRAL. The driver’s door
must be closed (or the driver’s seat belt buckled) so that
the transmission will remain in NEUTRAL when the
brake pedal is released.
NOTE: If vehicle is equipped with air suspension, ensure
the vehicle is set to Normal Ride Height.
4. Using a ballpoint pen or similar object, push and hold
the recessed transfer case NEUTRAL (N) button (at the
center of the transfer case switches). The NEUTRAL (N)
indicator light will illuminate, and remain lit, when the
shift to NEUTRAL (N) is complete. After the shift is
completed and the NEUTRAL (N) light stays on, release
the NEUTRAL (N) button.
5. Release the parking brake.
6. Shift the transmission into REVERSE.
7. Release the brake pedal for five seconds and ensure that
there is no vehicle movement.
8. Repeat steps 6 and 7 with the transmission in DRIVE.
9. Shift the transmission to NEUTRAL. Apply the parking
brake. Turn OFF the engine. For vehicles with Keyless
Enter-N-Go, push and hold the ENGINE START/STOP
button until the engine shuts off. The transmission will
automatically select PARK when the engine is turned
off.
10. Turn the ignition to the OFF mode.
11. Attach the vehicle to the tow vehicle using a suitable
tow bar.
12. Turn the ignition to the ON/RUN mode, but do not
start the engine.
13. Release the parking brake.
14. Turn the ignition OFF.