NOTE:This mode is intended to be enabled with engine running.Protection Mode• In order to “protect” the air suspension system, the vehicle will enter ProtectionMode when the payload has been exceeded or load leveling cannot be achieved.Refer to “Electronic Vehicle Information Center (EVIC)” in “Understanding YourInstrument Panel” in the Owner’s Manual on the DVD for further information.NOTE:This mode is intended to be enabled with engine running.2500-3500 AIR SUSPENSION SYSTEM• The air suspension system provides full time rear load leveling capability for allloading conditions including towing.Description• Normal Ride Height (NRH) - This is the standard position of the suspension and ismeant for normal driving.• Trailer Mode (Lowers the vehicle approximately 1 in (25 mm) - This position will lowerthe rear suspension and provide load leveling for all loading conditions includingtowing a trailer. The trailer button will blink continuously until trailer height hasbeen achieved. The system requires that the ignition be in ON/RUN position or theengine running for all user requested changes. After the engine is turned off, itmay be noticed that the air suspension system operates briefly, this is normal. Thesystem is correcting the position of the vehicle to ensure a proper appearance.• Refer to your Owner’s Manual on the DVD for further details.Air Suspension Modes• The Air Suspension system has multiple modes to protect the system in uniquesituations:Tire Jack Mode• To assist with changing a spare tire, the air suspension system has a feature whichallows the automatic leveling to be disabled. Refer to “Electronic VehicleInformation Center (EVIC)” in “Understanding Your Instrument Panel” in theOwner’s Manual on the DVD for further information.NOTE:This mode is intended to be enabled with engine running.OPERATING YOUR VEHICLE43