* The owner's manual: This will explicitly state if the vehicle has ABS.
* The vehicle's sticker (if available): The original window sticker may list ABS as an option.
* The dashboard: Look for an ABS warning light on the instrument cluster. (The absence of a light doesn't guarantee it's *not* there, though.)
* The brake system itself: A trained mechanic can easily determine if ABS is installed by inspecting the brake system components.
In short, it's not a guaranteed feature for all 2002 Malibu's.