For the 2017 Toyota Sienna, the high-beam headlight uses a 9005 bulb. Low-beam fitment varies by configuration: Base models use H11, while Limited models use D4S. Confirm the vehicle trim and headlight configuration before ordering, especially when replacing low-beam bulbs.
Front fog-light fitment is listed as H11 LED or H16 LED. Front turn signals and parking lights use 7444NA; Base models may instead use 3457A. Front side-marker fitment also varies, with 3457A listed for Base and 168NA for Limited.
The rear turn signal uses 7440A, and the reverse light uses 921. Brake and center-stop lights may be factory LED; Base brake and tail-light applications list 7443R. Additional listed bulbs include 168 or 917 for license-plate and tail-light applications, plus DE3022 for the trunk light.