2011 Cadillac DTS Owner's Manual - Page 166

FCA is enabled when the green light on the button is lit. FCA is disabled when the indicator light is amber. Alerting the Driver The FCA alert symbol will flash and a warning beep will sound when driver action may be required. { 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. The alert symbol will flash when: . . Your vehicle is approaching another vehicle too quickly. Your vehicle is following a vehicle ahead of you much too closely. . See Defensive Driving on page 5 ‑ 2 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. 4-8 Detecting the Vehicle Ahead The vehicle ahead symbol, located next to the FCA symbol, only appears when a vehicle ahead of you is detected in your path. If this symbol does not appear, or disappears briefly, FCA will not respond to vehicles you may see ahead. The symbol may disappear on curves, highway exit ramps, or hills. Also, when another vehicle enters the same lane as you, the FCA system will not detect the vehicle until it is completely in your driving lane.