Using haptic feedback (vibrations) in the seat bottom to give directional alerts to potential obstacles or crashes, the Safety Alert Seat works in conjunction with an array of video, ultrasonic, and radar sensors to see what's around the vehicle--front, back, and sides.
To get the fancy seats, you'll need to add the Cadillac Driver Awareness or Driver Assist packages, which bundle other features like lane departure warning, forward collision alert, side blind zone alert, and rear cross traffic alert (Driver Awareness package); or adaptive cruise control, automatic collision preparation, and front and rear automatic braking systems (Driver Assist package).
Check out the video for more on the Safety Alert Seat system and then visit out 2013 Cadillac XTS preview.