1999 Cadillac Catera Owner's Manual - Page 272

yellowblue 2. On the outboard side of each low-beam headlamp, you will find the turn signal bulbs. Turn the lamp assembly counterclockwise to remove. 3. Pull the bulb out to replace and then reassemble. Center High-Mounted Stoplamp (CHMSL) The CHMSL is equipped with high-durability illumination. If a bulb problem does occur, see your dealer for assistance. 6-34