Air-Matic is standard equipment on your car. ABC is optional. They're two entirely different systems. Open the hood and take a look at the top of the struts. If you see white plastic air lines at the top of the stuts you've got Air-Matic. As to the operation of these systems, the owners manual isn't much help. The way it reads you might think that it's possible to have both systems. I've had several clients question me about this in the past.