2009 Cadillac STS-V Owner's Manual - Page 185

Using Adaptive Cruise Controls on Hills and When Towing a Trailer Erasing Set Speed Memory The set speed memory is erased when the Adaptive Cruise Control switch or the ignition is turned off. Other Messages There are three messages that may appear on the DIC. They are SERVICE RADAR CRUISE, RADAR CRUISE NOT READY and CLEAN RADAR. These messages will appear to indicate a problem with the Adaptive Cruise Control. See DIC Warnings and Messages on page 3-79 for more information. How well Adaptive Cruise Control works on hills and while a trailer is being towed depends on your vehicle speed, vehicle load, traffic conditions, and the steepness of the hills. It might not detect a vehicle in your lane while driving on hills. While going up steep hills, you might want to use the accelerator pedal to maintain your vehicle speed. While going downhill and towing a trailer, you might want to brake to keep your vehicle speed down. Applying the brake disengages the system. You may choose not to use Adaptive Cruise Control on steep hills when towing a trailer. Cleaning the System The radar can become blocked by snow, ice, or dirt. If this happens, turn off the engine and clean the emblem/ lens, located in the center of the front outside grille. Do not use Adaptive Cruise Control in icy conditions, or when visibility is low, such as in fog, rain or snow. To clean the emblem/lens, wipe the surface with a soft cloth. After cleaning the emblem/lens, engage the Adaptive Cruise Control. If you are unable to do so, see your dealer/retailer. Disengaging Adaptive Cruise Control Apply the brake pedal or move the Adaptive Cruise Control switch to off, to disengage the system. Adaptive Cruise Control information does not appear on the HUD while the system is not engaged. 3-31