2009 Cadillac STS-V Owner's Manual - Page 180

Alerting the Driver The alert symbol flashes on the HUD and a warning beep sounds when driver action is required. { CAUTION: Adaptive Cruise Control has only limited braking ability to slow your vehicle. In some cases, Adaptive Cruise Control may not have time to slow your vehicle enough to avoid a collision. Be ready to take action and apply the brakes yourself. See Defensive Driving on page 4-2. Driver action is required when: • Adaptive Cruise Control cannot apply sufficient braking because you are approaching a vehicle too rapidly. Approaching and Following a Vehicle The vehicle ahead symbol only appears on the HUD when a vehicle ahead is detected in your path. • The vehicle speed drops below about 25 mph (40 km/h). • A temporary condition prohibits Adaptive Cruise Control from operating. See DIC Warnings and Messages on page 3-79 for more information. • A malfunction is detected in the system. See DIC Warnings and Messages on page 3-79 for more information. See Defensive Driving on page 4-2. If this symbol does not appear, or disappears briefly, Adaptive Cruise Control will not respond to vehicles you may see ahead. 3-26