2007 Cadillac STS Owner's Manual - Page 419

Replacement Bulbs Exterior Lamp Back-up Bulb Number 3157K For replacement bulbs not listed here, contact your dealer. Windshield Replacement Keep in mind that your windshield is part of the Head-Up Display (HUD) system. If you ever have to get your windshield replaced, be sure to get one that is designed for HUD or your HUD image may look blurred or out of focus. 2. Pull out the push pins holding down the top portion of the cloth cover. 3. Fold the cover down slightly and locate the lamp assembly. 4. Turn the socket counterclockwise and pull it straight out to remove it from the lamp assembly. 5. Pull the old bulb straight out and reinstall the new bulb. 6. Reverse the steps to reinstall. Windshield Wiper Blade Replacement Windshield wiper blades should be inspected for wear or cracking. See Scheduled Maintenance on page 505. It's a good idea to clean or replace the wiper blade assembly on a regular basis or when worn. For proper windshield wiper blade length and type, see Normal Maintenance Replacement Parts on page 518. 419