What is the low beam headlight bulb size for a 2008 Cadillac XLR?

The 2008 Cadillac XLR uses a HID-D1S LED bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2008 Cadillac XLR?

The high beam bulb size for the 2008 Cadillac XLR is HID-D1S LED.

Why are my 2008 Cadillac XLR headlights dim?

Dim headlights on a 2008 Cadillac XLR can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a HID-D1S LED LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2008 Cadillac XLR fog light?

The 2008 Cadillac XLR uses a 9045 LED bulb for the fog light position.

Is the 2008 Cadillac XLR single or dual beam?

The 2008 Cadillac XLR uses a single bulb (dual filament) headlight system. This means one bulb controls both high and low beams.

Can I install LED bulbs on my 2008 Cadillac XLR?

Yes, the 2008 Cadillac XLR comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a HID-D1S LED LED conversion kit for the low beams.

Does the 2008 Cadillac XLR have fog lights?

Yes, the 2008 Cadillac XLR takes a 9045 LED bulb for the fog light position.

Did the 2008 Cadillac XLR change headlight bulb sizes from the previous year?

No — the 2008 Cadillac XLR uses the same bulb sizes as the 2007 model. This configuration has been consistent across the 2004–2008 generation.

Is the 2008 Cadillac XLR the first or last year to use HID-D1S LED bulbs?

The 2008 Cadillac XLR is the last year in the 2004–2008 generation to use the HID-D1S LED bulb for the low beam headlight.

How do I change the headlight on a 2008 Cadillac XLR?

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 HID-D1S LED 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 2008 Cadillac XLR?

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 HID-D1S LED 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 2008 Cadillac XLR headlights?

A pair of HID HID-D1S LED bulbs costs $50 to $150. 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 2008 Cadillac XLR?

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 HID-D1S LED position are available as direct plug-and-play replacements.

The 2008 Cadillac XLR is the last model year to use this bulb configuration (2004–2008).

Fitment Guaranteed for 2008 Cadillac XLR

What Size Bulbs Does a 2008 Cadillac XLR Use?

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

Installation Difficulty

Easy (Plug and Play)

Est. Replacement Cost

$50 - $150 (HID System)

What Lighting System Does the 2008 Cadillac XLR Have?

Owners of the 2008 Cadillac XLR will find a total of 13 lighting elements throughout the vehicle's exterior. It features an extensive lighting system powered by premium factory HID/Xenon technology utilizing D1S projector housings for high-intensity output. This model belongs to the late years of the XLR's 2004-2009 production span.

Can You Put LED Bulbs in a 2008 Cadillac XLR?

The 2008 Cadillac XLR is already equipped with factory D1S HID/Xenon headlights. Since HID technology already provides exceptional brightness, we recommend staying with high-quality OEM replacement bulbs rather than attempting an LED retrofit for the primary headlights. However, the 9045 LED fog lights are typically halogen and are excellent candidates for an LED upgrade to match the color temperature of your HID headlights.

2008 Cadillac XLR Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	HID-D1S LED	Buy HID-D1S LED →
High Beam	HID-D1S LED	Buy HID-D1S LED →
Fog Light	9045 LED	Buy 9045 LED →
Brake Light	LED Bulb	Buy LED Bulb →
Side Marker	W5W	Buy W5W →
Turn Signal Front	3757AK LED	Buy 3757AK LED →
Turn Signal Rear	LED Bulb	Buy LED Bulb →
License Plate	2825	Buy 2825 →
Map Light	212-2	Buy 212-2 →
Parking Light	2825	Buy 2825 →
Reverse Light	3156	Buy 3156 →
Trunk Light	PC168	Buy PC168 →
Daytime Running	3157CK	Buy 3157CK →

How do the 2008 Cadillac XLR's bulbs compare to other years?

The 2008 Cadillac XLR uses the same bulbs as the 2007 model.

The 2009 model switched to a different bulb configuration.

This bulb configuration covers the 2004–2008 model years. ← 2007 2009 →

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Other XLR Years

2009 2007 2006 2005 2004

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