The Tow package with the auto leveling suspension is standard on the LE. It is supposed to air up with a load and retain the air until the weight is gone then it purges the excess air. So when there is any extra weight in the back/towing you will hear the compressor come on to level out the system.
2004 Armada SE Smoke 4x4, 2 Degree Advanced Timing, Air-Box Mod, K&N Drop In Filter, Active Tuning Grounding Kit, 6000K HID's, LED Interior and Exterior illumination, Chrome OEM Grille, Front Windows Tinted To Mach Back, V8 Emblems, LE Emblem, Big Tow Package, Prodigy Brake Controller, ScanGauge II, Microfilter, Qx56 Chrome Wheels/Steering Wheel, OEM Fog Lights, Back-Up Camera!
1976 Apache Trailer Hard-side Pop Up