2010 Cadillac STS Owner's Manual - Page 187

The Forward Collision Alert (FCA) controls are located on the end of the multifunction lever. { WARNING: . On winding roads, FCA may not detect a vehicle ahead. You could crash into a vehicle ahead of you. Do not rely on FCA on winding roads. When weather limits visibility, such as in fog, rain, or snow, FCA performance is limited. There may not be enough warning distance to the vehicle in front of you. Do not rely on FCA in low visibility conditions. . 9 (Off) : Turns the system off. R (On) : Turns the system on. The Head-Up Display must be on and properly adjusted. If the HUD is not on, FCA will not be enabled and you will not be provided with FCA audible and visual warnings. See Head-Up Display (HUD) on page 4‑38 for more information. { WARNING: When FCA is enabled, the Adaptive Cruise Control switch is on. If you press another Adaptive Cruise Control button, you might go into cruise when you do not want to. You could be startled and even lose control. Be careful not to press adaptive cruise buttons unless you want to use cruise control. 4-7