Normal operation:
WARNING: This page is about a different car, the 2016 Acura RDX, 2015 Acura RDX, 2014 Acura RDX, and 2013 Acura RDX. However, it is still accessible from the selected car via links, so may be relevant.
When pressing the engine start/stop button to select the ON mode and the immobilizer code is identified, the immobilizer indicator quickly flashes once.