For the 2004 Cadillac CTS, the high-beam headlight uses a 9005XS bulb. Low-beam fitment depends on the headlight equipment: models with halogen headlights use 9006XS, while models with HID headlights use D1S. Check the headlight type before ordering a replacement.
Other useful lighting fitment details include:
- Front turn signals may use 3157, 2825, or 98.
- Reverse lights use 3157; brake and tail lights use 3157R.
- The center stop light, dome light, and map lights use PC175.
- Daytime running lights use 3157.
- Front side markers use 194NA, while the trunk light uses 211-2.
- License plate, parking, and rear side-marker applications may use 2825 or 98.