Set Speed
WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
The ACC vehicle set speed is displayed at all times in the DIC when ACC is engaged. The DSCC module set speed display request is sent to the BCM via the serial data circuit. The DIC displays the set speed when it receives a serial data message from the BCM requesting the set speed displayed. The DIC controls when the set speed is displayed.