1997 Pontiac Bonneville Owner's Manual - Page 132

2. Adjust the seat, if necessary, before setting the height control. Slide the ADJUST (image height) control all the way up, raising the image as far as possible. Then slide the HUD image height control down so the image is as low as possible but in full view. If YOU can't see the HUD image when the ignition is on, check to see if 0 The headlamps are on. Anything is covering the HUD unit. The HUD dimmer control is adjusted correctly. 3. Slide the dimmer control downward until the HUD image is no brighter than necessary. To turn the HUD off, slide the HUD dimmer control all the way down. If the sun comesout, or it becomes cloudy, orif you turn on your headlamps, you may need to adjust the HUD brightness using the HUD dimmer control. Polarizing sunglasses could makethe HUD image harder to see. Clean the inside of the windshield as needed to remove 0 The HUD image is adjusted to the proper height. 0 A fuse in the fusepanel may be blown. See "Fuses and Circuit Breakers" in the Index. If the HUD image is not clear, it could be too bright. Move the HUD dimmer control further downward. You may need to clean the windshield and HUD lens. any dirt or film that reduces the sharpness or clarity of the HUD image. 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 fluid could leak inside the unit if you do. Your windshield is part of the HUD system.If you ever have to have a newwindshield, be sure to get one designed for HUD. If you don't, the HUD image may look blurred and out of focus. 2-79