If there is a warrant that has been issued for your arrest, then yes you have been charged with a crime. Accordingly, the statute of limitations does not apply in this situation. The reason is that the statute only applies to the time in which charges must be brought; if they are not filed within the prescribed time period then they can never be filed. However, in your case charges have already been filed, so the statute of limitations has no effect here. Further, since charges never expire you will need to deal with them. You should do so ASAP. At this point, you will need tocontact a criminal alw attoeny who practices in the state which ssued the warrant; they can best advise you here. That having been said you will need to personally appear back in the issuing court.