The statute of limitations only applies if you are going to file a law suit. For the most part, personal injury claims have a one to two years statute depending on your state. Since, I do not practice in your state, please contact an attorney. Again, service is a term that only applies when you are in litigation.
The California two year statute of limitation applies to personal injury lawsuits.
Because this matter is so important you should really get a lawyer.
You might find my Legal Guide helpful "How to Choose A Lawyer For You"
You might find my Legal Guide helpful " What Do I Tell My Lawyer"
No one can know what the record is in the case because online we cannot see your documents. You need a lawyer. Check with a lawyer in your locale to discuss more of the details.
Good luck to you.
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