2006 Cadillac STS Owner's Manual - Page 187

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. Notice: When cleaning, be careful not to scratch the HUD or camera lenses. Do not spray glass cleaner directly on the HUD lens because the cleaner could leak inside the unit and cause damage. If the ignition is on and you cannot see the HUD image, check to see if: • Ambient light in the direction your vehicle is facing is low. • A fuse is blown. See Fuses and Circuit Breakers on page 5-105. Keep in mind that your windshield is part of the HUD system. See Windshield Replacement on page 5-56. The following Adaptive Cruise Control message may appear in the HUD: PEDAL APPLIED ACC OVERRIDE: This message indicates that you are pressing your foot on the accelerator pedal and overriding Adaptive Cruise Control. While you are doing this, the system will not automatically apply the brakes. Once you remove your foot from the accelerator pedal, Adaptive Cruise Control will return to normal operation and be able to apply the brakes, if needed. You may also see an Adaptive Cruise Control active symbol, alert symbol or vehicle ahead symbol. See Adaptive Cruise Control on page 3-19 for more information. • Something is covering the HUD unit. • The brightness is adjusted properly. • The HUD image is adjusted to the proper height. 3-43