2018 Cadillac CT6 Bulb Size
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Bulbs Chart
2018 Cadillac CT6 Back Up Reverse Light Bulb (921)
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Best Choice
Replace your standard car lights with our robust Philips Vision LEDs that deliver dynamic lighting for your vehicle, both inside and out. The innovative design and unmatched performance of Philips Vision LEDs are available for brake and taillights, backup lights, dome lights, and license plate lights. These bulbs are covered
Philips 12789LPB2 Bright White Vision
LED Lights
2018 Cadillac CT6 Trunk or Cargo Area Light (194)
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Best Overall
Vision LED lights last 12 year. First to market with proven street-legal exterior LEDs. Philips Vision LEDs are available for brake and taillights, back-up lights, dome lights, glove compartment lights, trunk lights, and license plate lights.Philips 127916000KB2
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8000K Warm White
- Fittings: Philips led Bulb Fits in W5W, 194, 168 - 360° Light Diffusion - Philips LED exterior lighting range is designed for a smarter light distribution to ensure that exterior signaling light is projected where you need it (whether that’s reversing, stopping, or signaling). With wide angle and uniform light diffusion, not only can youPack of 2 Xtreme Vision 360 X treme Ultinon
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For Car Dome, Map Door, Courtesy, License Plate Lights
These bulbs could fit most of the positions of the car but do not fit all positions of your car, according to the year and model of your car, please double check the owner's manual. For some vehicles, It may need a canbus decoder to fix flickering or error codeMarsauto LED Light Bulb 6000K Replacement Bulbs
LED Lights
2018 Cadillac CT6 Headlights
![AKKON - Fits 2017-2018 Cadillac XT5 [LED DRL] Projector Chrome Clear Headlight Headlamp Passenger Right Side Replacement](https://m.media-amazon.com/images/I/51LjYPcpC+L._AC_QL90_UL90_.jpg?ezimgfmt=0)
2018 Cadillac CT6 Tail Lights
Cadillac CT6 Bulb Size By Years
If you’re replacing bulbs on a 2018 Cadillac CT6, the problem is matching sizes across headlights, brake lights, and interior lamps. This chart is designed to remove that guesswork by listing recommended bulb types for each position, so you can order the right parts and avoid returns or fit issues.
The list assumes common factory configurations but notes trade-offs when aftermarket upgrades or adaptive options are present. Use it as a starting point and perform validation against your owner’s manual or the physical bulb markings. That extra check reduces installation time and the risk of electrical or fitment problems.
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2018 Cadillac CT6 specs
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