How To Replace Headlight and Bulb 03-07 Cadillac CTS

Difficulty: Advanced · About 70 min · Cadillac Cts

Replace a headlight and bulb, including removing the front bumper cover, on a 2003-2007 Cadillac CTS.

Steps

1. Remove the bumper cover

   Remove the top eight clips starting with the center (leaving one pin without its center on each side), separate the inner fender from the bumper cover on each side, remove the 10mm bolt and nuts on each side, remove the marker light by squeezing its back pins, use its opening to remove the farther-back 10mm nut, remove the remaining top pins, carefully remove the bumper cover, then disconnect the fog and parking light wires.

2. Remove the headlight

   Pry out the trim plug with pliers and push it aside, remove the headlight's two 10mm bolts and one nut, disconnect its connector, then reseat the ball socket in the fender if it falls out.

3. Replace a bulb

   Twist the cap counterclockwise, twist the socket counterclockwise, pull the bulb out and replace it, then wipe it with a rag to remove any skin oil.

4. Reinstall the light and bumper cover

   Reattach the wires to the light, line it up and connect it to the car's body, replace its nut and bolts, reinstall the trim plug, line up the bumper cover and clip in its top two pins, reconnect the fog and parking lights, slide the panel into place, tighten the nuts and bolts behind the fenders, refit the marker light, tighten the wheel well and under-bumper bolts, then reinsert the top clips.

Check your vehicle’s repair manual for exact specifications and fit.