WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
Use the wireless remote control to navigate within the self-diagnostic function. LEFT/REAR button: Change the function mode
Fig 1: Identifying Left And Right Buttons On Wireless Remote Control