2005 Cadillac XLR Owner's Manual - Page 139

Other Vehicle Lane Changes When going downhill, you may have to brake to keep your speed down. Applying the brake disengages the system. You may choose not to use Adaptive Cruise Control on steep hills. Disengaging Adaptive Cruise Control To disengage the system, apply the brake pedal or move the Adaptive Cruise Control switch to off. Adaptive Cruise Control information will not appear on the HUD when the system is not engaged. If another vehicle enters the same lane as you, Adaptive Cruise Control will not detect the vehicle until it is completely in the lane. Be ready to take action and apply the brakes yourself. Erasing Set Speed Memory When you turn the Adaptive Cruise Control switch or the ignition off, the set speed memory is erased. Using Adaptive Cruise Control on Hills Other Messages There are three messages that may appear in the Driver Information Center (DIC). They are SERVICE RADAR CRUISE, CRUISE NOT READY and CLEAN RADAR CRUISE. These messages will only appear to indicate a problem if Adaptive Cruise Control is active. See DIC Warnings and Messages on page 3-64 for more information. How well Adaptive Cruise Control will work on hills depends on your speed, vehicle load, traffic conditions and the steepness of the hills. It may not detect a vehicle in your lane while driving on hills. When going up steep hills, you may want to use the accelerator pedal to maintain your speed. You may also see CRUISE SPEED LIMITED displayed in the HUD. See Head-Up Display (HUD) on page 3-34 for more information. 3-27