Re: Headlight bulb size??
There certainly are some oddities in the owners manual. For instance, it says we are not to use a hitch which is attached to the axle: while you could get an axle-mounted hitch for your Model T, I defy anyone to find such a strange device to attach to the suspension of the Sienna, or any modern vehicle without a solid axle. While using that not-attached-to-the-axle hitch, we are not to tow over 45 mph... hopefully while not getting rear-ended by all the other traffic on the highway!
The 2004 manual uses some uncommon designations for some of the minor bulbs, but clearly uses common terms for the headlight bulbs. I just don't know if they are the same for 2011, so I'll leave the specific information to a reading of the manual.
Help finding stuff in the manual, or interpreting the information found there, seem like good topics for discussion in this forum.