2008 Cadillac CTS Owner's Manual - Page 339

Replacement Bulbs Exterior Lamp Front Turn Signal Fog Lamp (Uplevel Only) License Plate Lamp Bulb Number 3157K H11LL W5WLL Windshield Wiper Blade Replacement Windshield wiper blades should be inspected for wear or cracking. See Owner Checks and Services on page 6-8. It is 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 Maintenance Replacement Parts on page 6-13. To replace the wiper blade assembly: 1. Turn the ignition to ON/RUN with the engine off. 2. Turn on the windshield wipers and turn them off again when the wipers are in the out-wipe position. The driver side blade will be straight up and down on the windshield. 3. Pull the windshield wiper assembly away from the windshield. For replacement bulbs not listed here, contact your dealer/retailer. 5-57