For the 2009 Cadillac Escalade, both the low-beam and high-beam headlights use D1S bulbs with HID headlights. Escalades equipped with LED headlights use LED units for both low and high beam, so confirm the headlight type before ordering. No fog-light bulb fitment is listed for this model year.
Other notable exterior fitments include 3457A bulbs for the front turn signals and parking lights, 5201 for the daytime running lights, and 194NA for the front side markers. The reverse lights use 7440 bulbs. The tail lights, rear turn signals, rear side markers, brake lights, and center stop light are listed as LED.
Interior applications include 212-2 bulbs for the dome and map lights, 194 or 7441 for the glove box, 168 or 917 for other interior lighting, 578 for the trunk, and 6612F for the vanity light. The license plate lighting may use either 2825 or 98.