What is the low beam headlight bulb size for a 2020 Acura RLX?

The 2020 Acura RLX uses a LED Headlights bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2020 Acura RLX?

The high beam bulb size for the 2020 Acura RLX is LED Headlights.

Why are my 2020 Acura RLX headlights dim?

Dim headlights on a 2020 Acura RLX can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a LED Headlights LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2020 Acura RLX fog light?

The 2020 Acura RLX uses a LED Fog Lights bulb for the fog light position.

Is the 2020 Acura RLX single or dual beam?

The 2020 Acura RLX 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 2020 Acura RLX?

Yes, the 2020 Acura RLX comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a LED Headlights LED conversion kit for the low beams.

Does the 2020 Acura RLX have fog lights?

Yes, the 2020 Acura RLX takes a LED Fog Lights bulb for the fog light position.

Did the 2020 Acura RLX change headlight bulb sizes from the previous year?

No — the 2020 Acura RLX uses the same bulb sizes as the 2019 model. This configuration has been consistent across the 2018–2020 generation.

How do I change the headlight on a 2020 Acura RLX?

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 LED Headlights 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 2020 Acura RLX?

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 LED Headlights 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 2020 Acura RLX headlights?

A pair of halogen LED Headlights 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 2020 Acura RLX?

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

The 2020 Acura RLX is the last model year to use this bulb configuration (2018–2020).

Fitment Guaranteed for 2020 Acura RLX

What Size Bulbs Does a 2020 Acura RLX 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 2020 Acura RLX Have?

Lighting on the 2020 Acura RLX is managed by a total of 10 bulbs, covering everything from primary headlights to signal indicators. It features a comprehensive lighting system powered by factory-integrated LED technology, which offers superior longevity and a modern cool-white appearance compared to traditional bulbs. This model belongs to the late years of the RLX's 2014-2020 production span.

Can You Put LED Bulbs in a 2020 Acura RLX?

Upgrading to LED is one of the most effective ways to modernize your Acura's appearance and safety profile. Since your RLX uses a single LED Headlights bulb for both high and low beams, ensure your chosen LED kit is "dual-beam" compatible. This allows the LED circuitry to mimic the two-filament design of the original halogen bulb. Don't forget the LED Fog Lights fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

2020 Acura RLX Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	LED Headlights	Buy LED Headlights →
High Beam	LED Headlights	Buy LED Headlights →
Fog Light	LED Fog Lights	Buy LED Fog Lights →
Brake Light	Brake Light Assembly	Buy Brake Light Assembly →
Side Marker	LED Bulb	Buy LED Bulb →
Turn Signal Front	LED Bulb	Buy LED Bulb →
Parking Light	LED Bulb	Buy LED Bulb →
Turn Signal Rear	LED Bulb	Buy LED Bulb →
Reverse Light	LED Bulb	Buy LED Bulb →
Trunk Light	168	Buy 168 →

How do the 2020 Acura RLX's bulbs compare to other years?

The 2020 Acura RLX uses the same bulbs as the 2019 model.

This bulb configuration covers the 2018–2020 model years. ← 2019

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Other RLX Years

2019 2018 2017 2016 2015 2014