MAC.....the air system is always "on". The only button you can push that relates to the air system is the height-control button: by pushing it your rear-end will rise about 2". It automatically descends when you move over 20mph....or when you push the button again.
When you push the button the indicator light on the button will flash...this indicates it's rising. When the light turns solid your at peak-height. Push thje button again to descend.
Btw...I won't tell you which one...but one of the button, when pushed, will result in water squirting in your face. Classic gag joke.
