Toyota Highlander Dome Light Bulb Size

The Toyota Highlander dome light utilizes DE3175 and 168 bulb sizes depending on the specific version of the lighting component installed in the vehicle. Available data for the lighting components spans from 2001 through 2024.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Dome Light

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
2023-2024	DE3175	DE3175	Check Price
2020-2022	168	W5W	Check Price
2011-2013	168	W5W	Check Price
2008-2010	DE3175	DE3175	Check Price
2001-2005	DE3175	DE3175	Check Price

Front Dome Light

Years	Bulb Type	Shop
2020-2022	12961	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175	Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168	Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W.	W5W	Check Price
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961	Check Price

Other Locations

Additional Notes

The DE3175 is a festoon-style bulb with a 31mm length and end-cap contacts, operating at 12V. It fits within the ANSI standard used across the US and Canada, making it a widely available replacement type.
The 168 is a T10 miniature wedge bulb rated at 12V and 4.9W, also conforming to the ANSI standard. The wedge base design means it is held in place by the socket itself rather than by a separate locking mechanism.
The 12961 is a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W. Because it is identified by a manufacturer part number rather than an ANSI code, direct substitution with other T10 bulbs warrants attention to base compatibility.
The Toyota Highlander dome light uses two distinct bulb types across its model years: the DE3175 festoon and the 168 wedge. These two types are not interchangeable, as they differ in both physical form and contact design.
The 2023-2024 Highlander uses the DE3175 for the dome light, while the 2020-2022 models use the 168. This represents a change in bulb type between the 2022 and 2023 model years.
The 2020-2022 Highlander carries a separate front dome light position that takes the 12961 bulb, which is a different fitment from the 168 used in the general dome light position for those same years.
The DE3175 appears across a broad span of Highlander model years, including 2001-2005 and 2008-2010, as well as 2023-2024, making it the more frequently specified of the two primary dome bulb types in these specifications.