2008 Cadillac STS Owner's Manual - Page 183

Deactivation When Head-Up Display is Turned Off If the HUD is turned off when Adaptive Cruise Control is engaged, it will begin to disengage. A warning beep sounds and the message RADAR CRUISE NOT READY appears on the Driver Information Center (DIC). See DIC Warnings and Messages on page 3-80 for additional information. If Adaptive Cruise Control was braking when the HUD is turned off, the braking will continue briefly. Passing a Vehicle/Adaptive Cruise Control Override To increase speed to pass a vehicle, use the accelerator pedal. While you are doing this, the system will not automatically apply the brakes. A PEDAL APPLIED ACC OVERRIDE message will appear on the HUD. See Head-Up Display (HUD) on page 3-43 for additional information. Once you pass the vehicle and remove your foot from the accelerator pedal, Adaptive Cruise Control returns to normal operation and the brakes can be applied, if needed. {CAUTION: If you rest your foot on the accelerator pedal, the system will not automatically apply the brakes. You could crash into a vehicle ahead of you. Do not rest your foot on the accelerator pedal when using Adaptive Cruise Control. 3-29