2018 Cadillac XTS Bulb Size
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Bulbs Chart
2018 Cadillac XTS License Plate Light Bulb (2825)
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Premium Pick
SYLVANIA LED bulbs deliver a balanced combination of performance and value. Tuners and auto enthusiasts alike can replace their vehicle’s incandescent lights with a bright and long-lasting LED bulb for a unique and modern look simply and cost-effectively.
Sylvania White Mini Bulb
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For Car Dome, Map Door, Courtesy, License Plate Lights
– Better beam pattern: each bulb has 5 pcs high power SMD led, color temperature: 6000K(xenon white), voltage: 12V – No polarity no flip: it is truly no polarity, can light on two sides, no need more modification or flip, plug and play, easy install within 5 minutes. Products with electrical plugsMarsauto LED Light Bulb 6000K Replacement Bulbs
LED Lights
2018 Cadillac XTS 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 coveredPhilips 12789LPB2 Bright White Vision
LED Lights
2018 Cadillac XTS 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 XTS Headlights
![AKKON - For 2013-2017 Cadillac XTS [W/O AFS MODEL ONLY] Driver LEFT Side Chrome Projector Headlight Lamp Direct Replacement](https://m.media-amazon.com/images/I/510+kSY+PTL._AC_QL90_UL90_.jpg?ezimgfmt=0)
![ACANII - For 2013-2017 Cadillac XTS [HID/Xenon (non-AFS] Projector Headlight Headlamp Light Replacement Left Driver Side](https://m.media-amazon.com/images/I/41MAfJja6mL._AC_QL90_UL90_.jpg?ezimgfmt=0)
2018 Cadillac XTS Tail Lights
Cadillac XTS Bulb Size By Years
Misconception: many people think a single bulb type fits every lighting spot on a 2018 Cadillac XTS. That feels plausible because lots of aftermarket stores show generic bulbs and photos that look similar.
Why it seems true and what is true: the mental model that "one size fits all" comes from seeing bulbs that look alike, but the XTS actually uses specific sizes and base types for headlights, fogs, brake lights, and interior lamps. This list exists to map each lamp location to the correct bulb code so you don’t guess and buy the wrong part.
Implications and quick recap: use the chart to match the bulb code to the socket, compare with your owner’s manual, and check fit before installation. Quick tests: remove the bulb to read the code, compare shape and base, or try a low-cost replacement first. Affiliate note: some links may earn a small commission at no extra cost to you, which helps keep the chart updated.
2018 Cadillac XTS specs
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