Abstract: An apparatus includes at least one pressurized air source, at least one switching valve is in fluid communication with the pressurized air source, and at least one bump stop assembly is in fluid communication with the at least one switching valve. The at least one bump stop assembly includes a body member that at least partially defines a pressure chamber that is in fluid communication with the at least one pressurized air source. A bump stop contact member is coupled to the pressure chamber. A controller is configured to vary a fluid pressure within the pressure chamber in response to an input from at least one vehicle sensor.