Toyota Highlander Courtesy Bulb Size

The Toyota Highlander courtesy light utilizes 168 and DE3022 bulb sizes for interior illumination across various production periods. Available data for the specified vehicle covers the time range from 2001 through 2024.

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

Bulb Size by Year Range

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
2020-2024	168	W5W	Check Price
2014-2019	DE3022	DE3022	Check Price
2008-2013	168	W5W	Check Price
2001-2005	168	W5W	Check Price

Bulb Specifications

Description	Type	Shop
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
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3022	Check Price

Other Locations

Additional Notes

The 168 bulb is a T10 miniature wedge type operating at 12 volts and 4.9 watts. Its wedge base design means it is held in place by the socket itself rather than by a separate locking mechanism, and it follows the ANSI standard applicable in the US and Canada.
The DE3022 is a festoon-style bulb with a 31mm length and end-cap contacts. Festoon bulbs seat between two spring clips rather than into a wedge socket, making the DE3022 physically incompatible with sockets designed for the 168, despite both operating at 12 volts.
The Toyota Highlander uses two distinct courtesy bulb types across its model years, and the two types are not interchangeable due to their different base designs.
The 168 bulb is specified for the 2021-2024 model years, as well as for 2008-2013 and 2001-2005.
The DE3022 festoon bulb is specified for the 2014-2019 model years of the Toyota Highlander, representing a period where the courtesy lamp socket required end-cap contact fitment rather than a wedge base.
Both the 168 and the DE3022 conform to ANSI standards for the US and Canadian markets, meaning both are widely available through standard automotive parts channels in those regions.
The 168 bulb's 4.9-watt rating places it in the low-wattage range typical of interior courtesy lighting, where heat output and power draw are kept minimal.