What is the low beam headlight bulb size for a 2015 Cadillac SRX?

The 2015 Cadillac SRX uses a H11 bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2015 Cadillac SRX?

The high beam bulb size for the 2015 Cadillac SRX is 9005.

Why are my 2015 Cadillac SRX headlights dim?

Dim headlights on a 2015 Cadillac SRX can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a H11 LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2015 Cadillac SRX fog light?

The 2015 Cadillac SRX uses a H10 bulb for the fog light position.

Is the 2015 Cadillac SRX single or dual beam?

The 2015 Cadillac SRX uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 2015 Cadillac SRX?

Yes, the 2015 Cadillac SRX comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a H11 LED conversion kit for the low beams.

Does the 2015 Cadillac SRX have fog lights?

Yes, the 2015 Cadillac SRX takes a H10 bulb for the fog light position.

Did the 2015 Cadillac SRX change headlight bulb sizes from the previous year?

Yes — the 2015 Cadillac SRX uses different bulb sizes than the 2014 model. The 2015 generation introduced this bulb configuration.

Is the 2015 Cadillac SRX the first or last year to use H11 bulbs?

The 2015 Cadillac SRX is the only year in the 2015 generation to use the H11 bulb for the low beam headlight.

How do I change the headlight on a 2015 Cadillac SRX?

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 H11 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 2015 Cadillac SRX?

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 H11 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 2015 Cadillac SRX headlights?

A pair of halogen H11 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 2015 Cadillac SRX?

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 H11 position are available as direct plug-and-play replacements.

The 2015 Cadillac SRX has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 2015 Cadillac SRX

What Size Bulbs Does a 2015 Cadillac SRX Use?

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

Installation Difficulty

Easy (Plug and Play)

Est. Replacement Cost

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

What Lighting System Does the 2015 Cadillac SRX Have?

The 2015 Cadillac SRX utilizes a refined lighting configuration featuring 10 distinct bulb positions. It features a comprehensive lighting system powered by a dual-bulb halogen configuration using separate H11 low beam and 9005 high beam bulbs for precise light distribution. This model belongs to the late years of the SRX's 2004-2016 production span.

Can You Put LED Bulbs in a 2015 Cadillac SRX?

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 H11 low beams, as they see the most use. Adding a matching 9005 LED kit later will complete the look and ensure consistent lighting performance. Don't forget the H10 fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

2015 Cadillac SRX Bulb Size Chart

Position	Bulb Size	Shop
Daytime Running	7443	Buy 7443 →
Side Marker	7443CK	Buy 7443CK →
High Beam	9005	Buy 9005 →
Low Beam	H11	Buy H11 →
Fog Light	H10	Buy H10 →
Parking Light	7443	Buy 7443 →
Turn Signal Rear	7440	Buy 7440 →
License Plate	W5W	Buy W5W →
Dome Light	W5W	Buy W5W →
Map Light	W5W	Buy W5W →