2008 Toyota Sienna bulb fitment starts with the headlights: the low-beam headlight uses a D2R bulb, while the high beam uses a 9005. The daytime running light also uses a 9005. The supplied fitment data does not identify a separate projector or non-projector headlight variation, so verify the existing bulb and housing before ordering.
Other useful exterior bulb details include:
- Front turn signal and parking light: 3457A
- Front side marker: 168NA
- Rear turn signal: 7440
- Brake light: 7443R
- Reverse light: 921
- Rear side marker: 7443A
- License plate lighting: 168 or 917
- Center stop light: LED
Interior and cargo lighting may use 194 or 7441 bulbs, while the trunk light uses DE3022. Tail-light fitment includes 194, 7441, and 7443R positions according to the supplied data. Check the bulb base and the socket location before purchasing, particularly where more than one bulb size is listed.