Thank you for your question. I will do my best to answer your question. Please note that this does not constitute legal advice as I do not know all the specific facts of your situation. We have not created an attorney-client relationship simply through this communication. Also, please be aware that none of these communications are confidential and are located on a public web site.
The City of Los Angeles shut down its red light
camera system effective July 31, 2011. As of March 31, 2012, LAPD officers will no longer appear in court to testify on these cases.
I assume from your question that you received the ticket prior to July 31, 2011. If you ignore the ticket, you should know that the ticket will NOT be reported to the California DMV. However, if you take any action to recognize or challenge the ticket, it could result in a violation that will be reported to the DMV. The common course of action here is to simply ignore the ticket.
Additionally, some tickets issued by other agencies in L.A. City (such as by Metro - MTA and Los Angeles County) ARE still being enforced. But if your ticket was issued by LAPD, it is no longer being enforced.
So to directly answer your question, the City of Los Angeles is no longer enforcing red light tickets, including the one you received.
Please let me know if I can clarify any of my remarks.