Manual Activation Method
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.
Turn the ignition switch to ON (II), then push and hold all four seat ventilation buttons for 2 seconds. After this sequence is accepted by the control unit, all indicators will turn on for 2 seconds.