In addition to the small overlap crash test, the IIHS evaluated all three minivans for LATCH child seat anchor ease of use. Once again, the Odyssey aced the test with a Good+ rating, which is awarded for both ease of use and offering multiple anchor point options. The Pacifica and Sienna swap the crash test ratings, with a Marginal for the Chrysler and an Acceptable for the Sienna.
The Odyssey and Pacifica can both brag that they're Top Safety Picks, and they'd get Top Safety Pick+ awards if they weren't hampered by headlights that only get Acceptable ratings. The Toyota Sienna fails to earn the regular Top Safety Pick award because both small overlap tests yielded results that were too low.
Only one other minivan tested by IIHS has the Top Safety Pick rating, and that's the Kia Sedona. It earns an Acceptable rating in LATCH usability, and its headlights actually earned a Good rating. It hasn't undergone passenger-side small overlap crash testing yet. If it fares well, it could get bumped up to a Top Safety Pick+ rating.