What is the low beam headlight bulb size for a 2010 Toyota Highlander?

The 2010 Toyota Highlander uses a H4 bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2010 Toyota Highlander?

The high beam bulb size for the 2010 Toyota Highlander is N/A.

Why are my 2010 Toyota Highlander headlights dim?

Dim headlights on a 2010 Toyota Highlander can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a H4 LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2010 Toyota Highlander fog light?

The 2010 Toyota Highlander uses a H11 bulb for the fog light position.

Is the 2010 Toyota Highlander single or dual beam?

The 2010 Toyota Highlander uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 2010 Toyota Highlander?

Yes, the 2010 Toyota Highlander comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a H4 LED conversion kit for the low beams.

Does the 2010 Toyota Highlander have fog lights?

Yes, the 2010 Toyota Highlander takes a H11 bulb for the fog light position.

Did the 2010 Toyota Highlander change headlight bulb sizes from the previous year?

Yes — the 2010 Toyota Highlander uses different bulb sizes than the 2009 model. The 2010 generation introduced this bulb configuration.

Is the 2010 Toyota Highlander the first or last year to use H4 bulbs?

The 2010 Toyota Highlander is the only year in the 2010 generation to use the H4 bulb for the low beam headlight.

How do I change the headlight on a 2010 Toyota Highlander?

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 H4 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 2010 Toyota Highlander?

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 H4 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 2010 Toyota Highlander headlights?

A pair of halogen H4 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 2010 Toyota Highlander?

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 H4 position are available as direct plug-and-play replacements.

The 2010 Toyota Highlander has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 2010 Toyota Highlander

What Size Bulbs Does a 2010 Toyota Highlander 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 2010 Toyota Highlander Have?

When it comes to nighttime visibility, the 2010 Toyota Highlander relies on an arrangement of 11 specialized bulbs. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate H4 low beam and high beam bulbs for precise light distribution. This model belongs to the mid years of the Highlander's 2001-2022 production span.

Can You Put LED Bulbs in a 2010 Toyota Highlander?

For a Toyota built for the road and trail, LED upgrades provide the high-contrast lighting needed for better obstacle detection. We recommend starting your upgrade with the H4 low beams, as they see the most use. Adding a matching LED kit later will complete the look and ensure consistent lighting performance. Don't forget the H11 fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

2010 Toyota Highlander Bulb Size Chart

Position	Bulb Size	Shop
Turn Signal Front	7440NA	Buy 7440NA →
Fog Light	H11	Buy H11 →
Low Beam	H4	Buy H4 →
Reverse Light	921	Buy 921 →
Brake Light	7443CK	Buy 7443CK →
Side Marker	7443CK	Buy 7443CK →
Tail Light	7443CK	Buy 7443CK →
Turn Signal Rear	7440	Buy 7440 →
License Plate	168	Buy 168 →
Door Light	168	Buy 168 →
Map Light	168	Buy 168 →