Manual Dump Valve
sb dm 05.07
On vehicles equipped with an optional manual dump valve, there are two ways to deflate the rear suspension. With the key in the OFF position, toggle the dump valve into the "lower" position. If the key is in the ON position, the parking brake must be set (ON) before the dump valve is toggled into the "lower" position.
Note: If the key is turned to the ON position and the parking brake is not engaged, the override system will cause reinflation of the air ride system.
Note: