For the 2014 Cadillac CTS-V, headlight bulb fitment depends on the body style and headlight configuration. The low beam uses H11 or an HID bulb: coupes with HID headlights use D1S, while sedans use D3S. High-beam fitment includes H9; coupe models with HID headlights use D1S, and sedans use D3S.
- Fog light: H11 LED
- Daytime running light: 5201
- Reverse light: 921
- Parking and license plate lights: 2825
- Front side marker: 194NA
- Glove box and interior lights: 906
- Map light: PC175
- Trunk light: 211-2
- Vanity light: 6612F
Verify whether the vehicle is a coupe or sedan and confirm the installed headlight type before ordering. HID-equipped applications require the listed D-series bulb for the applicable configuration.