I saw this from Ford and I'm assuming the CX9 doesn't have the backing out of the driveway feature?
The available class-exclusive* BLIS (Blind Spot Information System) with cross-traffic alert is yet another innovation available on the 2010 Ford Taurus. When a vehicle enters the blind spot zone, an indicator light provides a warning in the outside mirror corresponding to the side from which the vehicle is approaching. The cross-traffic alert feature uses blind spot monitoring sensors to audibly and visually alert you to approaching traffic while you're slowly backing out of a driveway/parking spot and another vehicle is nearing from either side. BLIS with cross-traffic alert is optional on Taurus Limited and SHO models. *Five-passenger Large Car class.