One problem related to anti-theft controller has been reported for the 2011 Dodge Ram 1500. The most recently reported issues are listed below.
The driver side headlight goes off at random times. It usually comes back on within a few minutes. Now it is completely out. A new bulb was attempted but failed to fix the issue. Also the anti theft system activates at random times causing the horn to activate and vehicles lights to all flash. One one occasion the vehicle failed to start for several hours. The issues are getting worse and more frequent.