2007 Cadillac XLR-V Owner's Manual - Page 174

As light shines out from the HUD, it is possible for light to shine back in. In rare occurrences, when the sun is at a specific angle and position, the sun's rays can shine back into the HUD. When this occurs, the display device within the HUD will be temporarily illuminated. The event will end when the vehicle's angle to the sun changes. Clean the inside of the windshield as needed to remove any dirt or film that reduces the sharpness or clarity of the HUD image. To clean the HUD, spray household glass cleaner on a soft, clean cloth. Wipe the HUD lens gently, then dry it. Do not spray cleaner directly on the lens because the cleaner could leak into the unit. If the ignition is on and you cannot see the HUD image, check to see if: • Something is covering the HUD unit. Keep in mind that your windshield is part of the HUD system. See Windshield Replacement on page 412. The following Adaptive Cruise Control (ACC) messages may appear in the HUD: CRUISE SPEED LIMITED: This message indicates that your vehicle speed has been reduced below your set speed due to ACC limitations. Your set speed is too high and ACC cannot detect other vehicles at far enough distances for the system to operate properly. TIGHT CURVE: This message indicates that ACC has reduced your vehicle speed due to a tight curve in the road. Once the road straightens, ACC will return to your selected set speed or follow distance setting. See "Adaptive Cruise Control (ACC)" under Turn Signal/Multifunction Lever on page 141 for more information. You may also see an ACC active symbol, alert symbol or vehicle ahead symbol. See "Adaptive Cruise Control (ACC)" under Turn Signal/Multifunction Lever on page 141 for more information. • The brightness is adjusted properly. • The HUD image is adjusted to the proper height. • Ambient light in the direction your vehicle is facing is low. • A fuse is blown. See Fuses and Circuit Breakers on page 453. 174