The Cadillac ATS comes with the CUE system which is used to control many of the interior features of the car. The system uses intuitive smartphone inspired controls, including tapping, swiping, and pinching, and a clean, uncluttered design. A proximity sensor detects your hand as it approaches the screen. When a button is pressed the screen pulses to acknowledge the input, allowing you to keep your eyes on the road. The system can also be controlled with voice commands to find a song, make a call, or input a destination using Natural Voice Recognition. The CUE system can be synchronized with up to ten devices so that you can access your contacts and stream music. You can also install apps on the system, including Pandora, and your favorites can be placed in an app tray that appears at the top of each screen. The optional navigation system is integrated into the CUE system, and uses the same smartphone style controls. The navigation system features 3D mapping and integrated Doppler weather reports. The entire CUE system is fully updatable during the life of your vehicle.