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GMC Yukon XL 2017 Bulb Size
Bulb size chart
9006 LED Bulbs
Used for: Fog Light Bulb Front
9005 Bulbs
Used for: Headlight Bulb High Beam
H11 Bulbs
Used for: Headlight Bulb Low Beam(with halogen headlights)
D3S Bulbs
Used for: Headlight Bulb Low Beam(with HID headlights)
921 Bulbs
Used for: Back Up Reverse Light Bulb
2825 Bulbs
Used for: License Plate Light Bulb
6612F Bulbs
Used for: Vanity Mirror Light Bulb
If you need bulb sizes for a 2017 GMC Yukon XL, this page is designed to help you verify the correct bulb by lighting position before you buy anything. The Yukon XL could be equipped with different headlight and accessory lighting setups, so matching the bulb to the exact location is the safest way to avoid a wrong fit.
Use this guide to check the common exterior and interior bulb positions on the 2017 GMC Yukon XL, including low beam, high beam, reverse lights, license plate lights, fog lights, and vanity mirror lights. Because trim and lighting packages can vary, the bulb listed for one position may not apply to every vehicle in every market.
Fitment can change depending on trim level, factory lighting package, body style, and whether the truck has halogen headlights or HID headlights. For example, the low beam bulb is H11 on halogen-equipped models and D3S on models with HID headlights, while the fog light listing may also reflect an LED setup on some vehicles. If your Yukon XL has been modified with aftermarket conversions, projectors, LED replacements, or retrofit housings, the installed bulb may not match the original factory specification. The best practice is to check the bulb already installed in the vehicle, compare the socket and connector style, and confirm the lighting position before ordering replacements.
FAQ
What bulb size does the 2017 GMC Yukon XL use for the high beam headlights?
The high beam headlight bulb size listed for the 2017 GMC Yukon XL is 9005.
What is the low beam bulb size on a 2017 GMC Yukon XL with halogen headlights?
For halogen headlights, the low beam bulb size listed is H11.
What is the low beam bulb size on a 2017 GMC Yukon XL with HID headlights?
For HID headlights, the low beam bulb size listed is D3S.
What bulb does the 2017 GMC Yukon XL use for the front fog lights?
The front fog light bulb listing on this page is 9006 LED.
What bulb size is used for the reverse lights on a 2017 GMC Yukon XL?
The back up reverse light bulb size listed is 921.
What bulb size is used for the license plate lights?
The license plate light bulb size listed for the 2017 GMC Yukon XL is 2825.
What bulb size is used for the vanity mirror lights?
The vanity mirror light bulb size listed is 6612F.
Why does the bulb size vary on the same 2017 GMC Yukon XL model?
Because trim, lighting package, and market can change the factory equipment. A Yukon XL with halogen headlights uses a different low beam bulb than one with HID headlights, so the exact lighting setup matters.
How do I know whether my Yukon XL has halogen or HID headlights?
Check the headlight housing, the owner’s manual, or the bulb already installed in the vehicle. The low beam bulb type is the easiest clue: H11 indicates halogen, while D3S indicates HID on this page.
Can I replace a factory halogen bulb with an LED bulb?
Sometimes, but not always. Aftermarket LED conversions may fit physically yet still cause beam pattern issues, warning messages, or poor light output if the housing was designed for halogen bulbs.
Should I trust the bulb size list without checking my vehicle first?
Use the list as a guide, but always confirm the installed bulb before buying replacements. This is especially important on a 2017 GMC Yukon XL because different trims and lighting packages can use different bulbs.
Are the bulb sizes on this page the same for every market?
Not necessarily. Some bulb applications can vary by country, trim, or body configuration, so it is smart to verify the exact lighting position on your specific Yukon XL.