2018 Cadillac XTS Headlight Bulb Size

The 2018 Cadillac XTS headlights have a single bulb size (LED) for high and low beams.

Using the 2018 Cadillac XTS bulb chart below, you can quickly identify the correct replacement lamp for all 19 positions of its lighting system.


Headlight Bulb High Beam - LED

“LED” means it is impossible to replace the bulb. Need to change the whole unit.
Headlight Bulb Low Beam - LED

“LED” means it is impossible to replace the bulb. Need to change the whole unit.
Center High Mount Stop Light Bulb - LED

“LED” means it is impossible to replace the bulb. Need to change the whole unit.
Brake Light Bulb - LED

“LED” means it is impossible to replace the bulb. Need to change the whole unit.
Turn Signal Light Bulb Front - LED

“LED” means it is impossible to replace the bulb. Need to change the whole unit.
License Plate Light Bulb - 2825
LED
License Plate Light Bulb - 98
LED
Parking Light Bulb - LED

“LED” means it is impossible to replace the bulb. Need to change the whole unit.
Tail Light Bulb - LED

“LED” means it is impossible to replace the bulb. Need to change the whole unit.
Daytime Running Light Bulb - LED

“LED” means it is impossible to replace the bulb. Need to change the whole unit.
Turn Signal Light Bulb Rear - LED

“LED” means it is impossible to replace the bulb. Need to change the whole unit.
Back Up Reverse Light Bulb - 921
LED
Side Marker Light Bulb Front - LED

“LED” means it is impossible to replace the bulb. Need to change the whole unit.
Side Marker Light Bulb Rear - LED

“LED” means it is impossible to replace the bulb. Need to change the whole unit.
Vanity Mirror Light Bulb - 7065
LED
Trunk or Cargo Area Light - 194
Trunk or Cargo Area Light - 7441
LED
Dome Light Bulb - 2886X
Map Light Bulb - LED

“LED” means it is impossible to replace the bulb. Need to change the whole unit.

Replacement Bulb Size for the 2018 Cadillac XTS

Considering an upgrade from the Halogen to LED or HID headlights? Find below aftermarket replacements for OEM bulbs compatible with the 2018 Cadillac XTS's housing. Note that you may need additional equipment to install LED or Xenon bulbs despite the correct bulb size of the lamp.

2018 Cadillac XTS License Plate bulb size - 2825

LED 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...
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2018 Cadillac XTS License Plate bulb size - 98

LED Lights

Experience unmatched brightness with the WLJH Instrument Panel 98 LED Light Bulb, boasting a 360-degree glow and modern aesthetics thanks to its high-quality 3030 chips....
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2018 Cadillac XTS Back Up bulb size - 921

LED Lights

  • 300% Brighter - 921 led bulb has 3030 SMD LED chips. You can see farther and clearer when reversing at night.
  • Easy Installation - 1:1 design...

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You want bright, stylish lighting for your car but you don’t want to keep replacing burned-out bulbs. Philips Ultinon LED lights to give you high-powered,...
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2018 Cadillac XTS Vanity Mirror bulb size - 7065

LED Lights

Discover the brilliance of the TUINCYN Festoon 7065 LED Interior Bulb, a perfect blend of design and functionality tailored for modern illumination needs. Freshly designed...
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Introducing the Wiseshine 7065 LED Interior Festoon Bulbs - a perfect replacement for traditional Festoon Miniature Halogen light bulbs, including models like DE3175, DE3021, DE3022,...
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2018 Cadillac XTS Trunk Area bulb size - 194

Halogen Lights

– Longer life than basic bulbs
– Legal for on road use
– OE (Original Equipment) Manufacturer
– Light bulbs dim over time and require...
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LED Lights

These T10 LED bulbs from AUXITO have 24 high-quality 3014 LED chips, giving off a bright 6000K white light at 240 Lumens while using just...
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Elevate your vehicle's lighting with AUXITO's 194 LED Light Bulb, merging top-notch performance with sleek aesthetics.

  • High-End LED: Each bulb boasts 24 premium 3014 LED chips,...

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2018 Cadillac XTS Trunk Area bulb size - 7441

LED Lights

The KATUR T20 White/Amber Switchback LED Light Bulbs (7441) are a great upgrade for your vehicle's lighting. These energy-efficient bulbs have a 12V operating voltage...
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Popular Headlights


Explore the custom LED headlight kits that will improve the visibility ahead of the 2018 Cadillac XTS at night. Made of quality materials, bright and long-lasting, they would be a perfect alternative to old or dimmed factory headlights. Explore more headlights for Cadillac XTS 2018 here.


Popular Taillights


A pair of custom tail lights is necessary if the people behind your 2018 Cadillac XTS are to be impressed. Consider direct bolt-on replacements powered by LED instead of worn-out or damaged tail lights.




Cadillac XTS 2018 bulb size chart specifies the recommended bulb part numbers and types for all positions of its lighting system, like headlights, fog lights, brake lights, side markers, etc.

If you want to upgrade the headlights, the aftermarket bulb you select has to be the exact size your Cadillac XTS 2018 requires to fit into the housing and match the wattage and voltage specifications.

LightningLab project pulls information about the 2018 Cadillac XTS bulb sizes from the vehicle's manual and leading automotive lighting suppliers. All the data is classified and fact-checked by our editorial team.

The following chart with the 2018 Cadillac XTS bulb sizes is provided for informative purposes only. Consult the owner's manual or contact the dealership to double-check the correct bulb type, wattage, voltage, and whether it requires any additional equipment or modifications to be installed on the specific 2018 Cadillac XTS trim.

Ensure the bulb is "DOT" compliant to avoid legal issues.


FAQs

How to replace the 2018 Cadillac XTS headlight bulb?

First things first, you'll need the right 2018 Cadillac XTS bulb size. Of course, you may consult the owner's manual, but let's be honest, that's as dull. Instead, just look at the chart above or remove the old bulb to see its size. It's not rocket science; it's more like... bulb science.

Follow the simple step-by-step instructions:

  1. 1) Park the 2018 Cadillac XTS on an even surface and turn off the ignition.
  2. 2) Open the hood and pop it up.
  3. 3) Pull the lock bar up and out of the clip to fix the hood.
  4. 4) Identify the back of the headlight assembly where the bulb is housed.
  5. 5) You may need to remove other components to access it.
  6. 6) Locate the electrical connector at the back of the headlight compartment.
  7. 7) Press down on the locking tab and pull the connector away from the bulb.
  8. 8) Remove the Old Bulb. Depending on your trim, you may need to:
    1. a) Unscrew a retaining ring
    2. b) Unclip a metal pin
    3. c) Rotate the bulb counterclockwise
  9. 9) Insert the new bulb without touching the glass.
  10. 10) Plug the electrical connector back, making sure it clicks into place.
  11. 11) Turn on the headlights to test the new bulb.
  12. 12) You may need to aim your headlights.



Reviewed by Brent Ordway

Brent Ordway is an ASE-certified car technician. He has been working on cars since he was a teenager and loved helping people keep their vehicles running smoothly. Brent's skills as a mechanic are unrivaled. In 2022, he earned his place on the list of winners for the ASE Master Automobile Technician of the Year award.

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Cadillac XTS Bulb Chart By Years

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