For the 2017 Cadillac XT5, the headlight bulb depends on the factory headlamp configuration. The low beam is listed as either 9012 or an integrated LED system, while the high beam is also listed as either 9012 or LED. Check the headlight assembly before ordering; LED-equipped lamps do not use a replaceable 9012 bulb.
The front turn signal uses a 7440A bulb, and the front side marker uses 194NA. The reverse light takes a 921 bulb. The brake, center stop, daytime running, license plate, rear side marker, tail, and rear turn signal lighting are listed as LED.
- Map light: DE3021
- Vanity light: 6612F
- Dome, glove box, interior, trunk, and step lights: LED
No fog-light bulb fitment is listed for this model year.