WARNING: This page is about a different car, the 2009 Acura MDX, 2008 Acura MDX, and 2007 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Vehicle Identification Number (VIN) Locations
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 2: Identifying Engine Number And Transmission Number Locations