I was able to look closer today, and after reinserting the arm into the door, all appears to be working correctly. I guess I got lucky with no stripped gears or broken door@aptos, if my theory is correct about '08-11's, you will discover an intact door and a disconnected arm (which you can easily reconnect using Nate's youtube video; in addition I had to remove the ECM and a black plastic holder just to the right of the actuator to gain access).
The symptom for the stripped gears inside the actuator is a clicking sound from that area when the door tries to open or close.