2021 Toyota Avalon bulb fitment is LED for both the low-beam and high-beam headlights. The supplied data does not list a replaceable bulb size for either headlight function, so confirm the factory lamp assembly before ordering a replacement. No fog-light fitment is listed.
The exterior lighting is also listed as LED, including the front and rear turn signals, brake lights, center stop light, reverse lights, tail lights, parking lights, side markers, cornering lights, daytime running lights, and license plate lights. The dome and map lights are LED as well.
- Interior lighting may use bulb 168 or 917; verify the specific application before purchase.
- The trunk light is listed with bulb 168 or 917.
- The vanity light uses bulb 7065.
Because most listed lighting functions are LED, this Avalon may require an LED module or lamp assembly rather than a conventional replaceable bulb. Use the listed interior bulb options only where they match the original component.