2019 RAM 2500 Owners Manual - AIR SUSPENSION SYSTEM (2500/3500 MODELS) — IF EQUIPPED

AIR SUSPENSION SYSTEM (2500/3500 MODELS) — IF EQUIPPED

Description

This air suspension system is a rear leveling ride height system. The main purpose of this system is to maintain the truck’s rear ride height level. There are two selectable heights that can be chosen based on your operating conditions.

The system requires that the ignition be in ON/RUN posi- tion or the engine running with zero vehicle speed for all user requested changes and load leveling.

Rear Leveling Ride Height Switch

Normal Ride Height (NRH) – This is the standard position of the suspension and is meant for normal driving. It will automatically adjust to maintain the rear ride height as conditions change.

Alternate Trailer Height (ATH) – Lowers the vehicle approximately 1 in (25 mm) for a level truck, to be used as required while trailer towing. It will automatically adjust to maintain the rear ride height as conditions change.

Trailer Decoupling/Unloading - The air suspension system will load level (lower/exhaust only) once after 12 minutes after the vehicle is turned off. This allows for easy removal of a trailer and/or load from the back of the truck by main- taining the ride height. After 12 minutes you will need to turn the ignition to the run position for the air suspension to re-level due to addition/removal of load in the vehicle. If the air suspension system is disabled using the settings menu (Tire Jack Mode, Transport Mode, Alignment Mode, or Bed Lowering Mode) the system will remain disabled when the vehicle is turned off. Reactivating the air suspension can be accomplished via the settings menu or driving the vehicle above 5 mph (8 km/h) for Tire Jack Mode or Alignment Mode and 16 mph (26 km/h) for Transport Mode and Bed Lowering Mode.

NOTE:

Most 3500 models will not lower to Alternate Trailer Height (ATH) when unloaded.

Refer to “Trailer Towing” in “Starting And Operating” for further information.

Ignition OFF Behavior

For a predetermined amount of time after the ignition is off the air suspension may adjust to maintain a proper appearance.

The air suspension system has multiple modes to protect the system in unique situations:

Tire/Jack Mode

To assist with changing a tire, the air suspension system has a feature which allows the automatic leveling to be disabled. This mode is intended to be enabled with engine running. Refer to “Instrument Cluster Display” in “Getting To Know Your Instru- ment Panel” or “Uconnect Settings” in “Multimedia” if equipped with a touch screen radio for further information.

NOTE:

This mode is intended to be enabled with engine running.

Transport Mode

For towing your vehicle with four wheels off the road, the air suspension system has a feature which will put the vehicle below Normal Ride Height (NRH) and disable the automatic load leveling system. This mode is intended to be enabled with engine running. Refer to “Instrument Cluster Display” in “Getting To Know Your Instrument Panel” or “Uconnect Settings” in “Understanding Your Instrument Panel” if equipped with a touch screen radio for further information.

Bed Lowering Mode

For towing your vehicle with four wheels off the road, the air suspension system has a feature which will put the vehicle below Normal Ride Height (NRH) and disable the automatic load leveling system. This mode is intended to be enabled with engine running. Refer to “Instrument Cluster Display” in “Getting To Know Your Instrument Panel” or “Uconnect Settings” in “Understanding Your Instrument Panel” if equipped with a touch screen radio for further information.

NOTE:

Protection Strategy 5

This mode is intended to be enabled with engine running.

Wheel Alignment Mode

Before performing a wheel alignment this mode must be enabled. Refer to “Instrument Cluster Display” in “Getting To Know Your Instrument Panel” or “Uconnect Settings” in “Multimedia” if equipped with a touch screen radio for further information.

NOTE:

This mode is intended to be enabled with engine running.

In order to “protect” the air suspension system, the vehicle will disable load leveling as required (suspension over- loaded, battery charge low, etc.). Load leveling will automat- ically resume as soon as system operation requirements are met. See your authorized dealer if system does not resume.

When the appropriate conditions exist, a message will appear in the instrument cluster display. Refer to “Instru- ment Cluster Display” in “Getting To Know Your Instru- ment Panel” for further information.

An audible chime will be heard whenever a system error has been detected.

See your authorized dealer for system service if normal oper- ation does not resume.

Pushing the Alternate Trailer Height (ATH) button once while at Normal Ride Height (NRH), will lower the vehicle to Alternate Trailer Height (ATH) and will illuminate the LED.

NOTE:

The LED will continuously blink until vehicle Alternate Trailer Height (ATH) has been achieved and the LED will turn on.

Pushing the Alternate Trailer Height (ATH) again will raise the vehicle to Normal Ride Height (NRH).

NOTE:

The LED will continuously blink until Normal Ride Height (NRH) has been achieved and the LED will turn off.

Transport Mode – No indicator lamps will be illuminated. Transport Mode is disabled by driving the vehicle, or dese- lecting the mode via the interface.

Tire/Jack Mode – No indicator lamps will be illuminated. Tire/Jack Mode is disabled by driving the vehicle, or by deselecting the mode via the interface.

Wheel Alignment Mode – No indicator lamps will be illu- minated. Wheel Alignment Mode is disabled by driving the vehicle, or by deselecting the mode via the interface.

Bed Lowering Mode – No indicator lamps will be illumi- nated. Bed Lowering Mode is disabled by driving the vehicle, or deselecting the mode via the interface.