What is the low beam headlight bulb size for a 2015 Lexus GS350?

The 2015 Lexus GS350 uses a HID-D4S 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 2015 Lexus GS350?

The high beam bulb size for the 2015 Lexus GS350 is HID-D4S LED.

Why are my 2015 Lexus GS350 headlights dim?

Dim headlights on a 2015 Lexus GS350 can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a HID-D4S LED LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2015 Lexus GS350 fog light?

The 2015 Lexus GS350 uses a H16 LED bulb for the fog light position.

Is the 2015 Lexus GS350 single or dual beam?

The 2015 Lexus GS350 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 2015 Lexus GS350?

Yes, the 2015 Lexus GS350 comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a HID-D4S LED LED conversion kit for the low beams.

Does the 2015 Lexus GS350 have fog lights?

Yes, the 2015 Lexus GS350 takes a H16 LED bulb for the fog light position.

How do I change the headlight on a 2015 Lexus GS350?

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-D4S 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 2015 Lexus GS350?

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-D4S 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 2015 Lexus GS350 headlights?

A pair of HID HID-D4S 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 2015 Lexus GS350?

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-D4S LED position are available as direct plug-and-play replacements.

This vehicle is part of the 2013–2015 Lexus GS350 generation. All models in this range share identical light bulb sizes.

Fitment Guaranteed for 2015 Lexus GS350

What Size Bulbs Does a 2015 Lexus GS350 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 2015 Lexus GS350 Have?

When it comes to nighttime visibility, the 2015 Lexus GS350 relies on an arrangement of 13 specialized bulbs. It features an extensive lighting system powered by premium factory HID/Xenon technology utilizing D4S projector housings for high-intensity output. This model belongs to the mid years of the GS350's 2007-2019 production span.

Can You Put LED Bulbs in a 2015 Lexus GS350?

The 2015 Lexus GS350 is already equipped with factory D4S 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 H16 LED fog lights are typically halogen and are excellent candidates for an LED upgrade to match the color temperature of your HID headlights.

2015 Lexus GS350 Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	HID-D4S LED	Buy HID-D4S LED →
High Beam	HID-D4S LED	Buy HID-D4S LED →
Fog Light	H16 LED	Buy H16 LED →
Brake Light	LED Bulb	Buy LED Bulb →
Turn Signal Front	7444NA LED	Buy 7444NA LED →
Side Marker	LED Bulb	Buy LED Bulb →
Turn Signal Rear	7440 LED	Buy 7440 LED →
Reverse Light	921	Buy 921 →
Dome Light	LED Bulb	Buy LED Bulb →
License Plate	LED Bulb	Buy LED Bulb →
Map Light	LED Bulb	Buy LED Bulb →
Parking Light	7444NA	Buy 7444NA →
Trunk Light	194	Buy 194 →