What is the low beam headlight bulb size for a 2018 Cadillac XT5?

The 2018 Cadillac XT5 uses a 9012 bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2018 Cadillac XT5?

The high beam bulb size for the 2018 Cadillac XT5 is LED Headlights.

Why are my 2018 Cadillac XT5 headlights dim?

Dim headlights on a 2018 Cadillac XT5 can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a 9012 LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2018 Cadillac XT5 fog light?

The 2018 Cadillac XT5 uses a LED Fog Light bulb for the fog light position.

Is the 2018 Cadillac XT5 single or dual beam?

The 2018 Cadillac XT5 uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 2018 Cadillac XT5?

Yes, the 2018 Cadillac XT5 comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a 9012 LED conversion kit for the low beams.

Does the 2018 Cadillac XT5 have fog lights?

Yes, the 2018 Cadillac XT5 takes a LED Fog Light bulb for the fog light position.

Did the 2018 Cadillac XT5 change headlight bulb sizes from the previous year?

No — the 2018 Cadillac XT5 uses the same bulb sizes as the 2017 model. This configuration has been consistent across the 2017–2019 generation.

How do I change the headlight on a 2018 Cadillac XT5?

Turn off the vehicle and open the hood. Locate the headlight assembly from behind, remove the dust cover or retaining clip, disconnect the wiring harness, twist the old 9012 bulb counter-clockwise to remove it, then insert the new bulb and reassemble. The whole process typically takes 10 to 30 minutes per side depending on accessibility.

Are LED headlights legal for a 2018 Cadillac XT5?

LED bulbs used off-road or in auxiliary lights are legal everywhere. For on-road headlight use, legality varies by state. Many states allow LED retrofits as long as the beam pattern meets DOT standards. For the best legal compliance, choose a DOT-approved 9012 LED kit that is designed as a direct replacement and produces a proper cutoff pattern without excessive glare.

How much does it cost to replace 2018 Cadillac XT5 headlights?

A pair of halogen 9012 bulbs costs $15 to $40, while LED conversion kits run $25 to $60 per pair. If you have a shop do the work, expect an additional $20 to $50 in labor per bulb. Replacing them yourself at home saves the labor cost and usually takes under 30 minutes.

What is the difference between halogen and LED for a 2018 Cadillac XT5?

Halogen bulbs produce a warm yellow light (around 3200K), last 500 to 1000 hours, and draw more power. LED bulbs emit a brighter white light (5000-6000K), last 25,000+ hours, and use less energy. LED upgrades for the 9012 position are available as direct plug-and-play replacements.

The 2018 Cadillac XT5 shares its bulb sizes with the 2017–2019 generation.

Fitment Guaranteed for 2018 Cadillac XT5

What Size Bulbs Does a 2018 Cadillac XT5 Use?

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Installation Difficulty

Moderate (Dust covers often present)

Est. Replacement Cost

$15 - $40 (Halogen) / $30+ (LED)

What Lighting System Does the 2018 Cadillac XT5 Have?

When it comes to nighttime visibility, the 2018 Cadillac XT5 relies on an arrangement of 13 specialized bulbs. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate 9012 low beam and LED Headlights high beam bulbs for precise light distribution. This model belongs to the mid years of the XT5's 2017-2020 production span.

Can You Put LED Bulbs in a 2018 Cadillac XT5?

Upgrading to LED is one of the most effective ways to modernize your Cadillac's appearance and safety profile. We recommend starting your upgrade with the 9012 low beams, as they see the most use. Adding a matching LED Headlights LED kit later will complete the look and ensure consistent lighting performance. Don't forget the LED Fog Light fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

2018 Cadillac XT5 Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	9012	Buy 9012 →
High Beam	LED Headlights	Buy LED Headlights →
Fog Light	LED Fog Light	Buy LED Fog Light →
Brake Light	LED Bulb	Buy LED Bulb →
Side Marker	194	Buy 194 →
Turn Signal Front	7440NA LED	Buy 7440NA LED →
Turn Signal Rear	LED Bulb	Buy LED Bulb →
Dome Light	LED Bulb	Buy LED Bulb →
License Plate	2825	Buy 2825 →
Map Light	DE3021	Buy DE3021 →
Parking Light	LED Bulb	Buy LED Bulb →
Reverse Light	921	Buy 921 →
Trunk Light	LED Light	Buy LED Light →