Light bulb size Pulling out the socket of the light bulb from the headlight assembly.

2015-2020 GMC Yukon Light Bulb Sizes

Front Lights

  • Daytime Running Light Bulb: LED
  • Front Fog Light Bulb: 12278
  • Front Sidemarker Light Bulb: LED
  • Front Turn Signal Light Bulb: LED
  • High Beam Headlight Bulb: 9005LL
  • Low Beam Headlight Bulb:
    • H11LL
    •  HID-D3S

Rear Lights

  • Back Up Light Bulb: 921
  • Brake Light Bulb: LED
  • Center High Mount Stop Light Bulb: LED
  • License Plate Light Bulb: 2825L
  • Parking Light Bulb: LED
  • Rear Sidemarker Light Bulb: LED
  • Rear Turn Signal Light Bulb: LED
  • Tail Light Bulb: LED

Interior Lights

  • Dome Light Bulb: LED
  • Luggage Compartment Light Bulb: LED
  • Map Light Bulb: LED
  • Vanity Mirror Light Bulb: 6612F

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