Home Réparation automobile How to Change the Bulb in your 03-07 Cadillac CTS Fog, Daytime... Réparation automobile How to Change the Bulb in your 03-07 Cadillac CTS Fog, Daytime Running Signal Light 1AAuto.com By Master Tutoriel - 14 octobre 2011 14 0 FacebookTwitterPinterestWhatsApp www.1aauto.com 1A Auto Shows you how to install, change or replace a blown or burned out fog light, daytime running, or turn signal bulb. This video is applicable to 2003-2007 Cadillac CTS models.