Do you think that there might be a warrant out for your arrest? If so, you do not need to worry. You can ask a bail agent to check for you.
Bail agents perform warrant checks for their clients all of the time. All you have to do is talk to an agent, and give him or her your name, birthday, and the county where you think the warrant may have been issued. With that small amount of information, the bail agent will be able to check for any warrants.
However, bail agents are not able to check in all California counties. Each county has different rules on how to check for a warrant. This may make you wonder what the benefits are to having a bail agent check for you. The benefit is that in some cases, if there is a warrant out for your arrest and the bail amount is known, the bail agent may be able to work with you to get a bail bond setup before you turn yourself in. You will still have to go through the booking process, but after that, you will be released, thus shortening your time in jail.