Dui arrests are taken seriously by the courts. If you failed to appear for your arraignment, a bench warrant for you arrest may have been issued. Contact an experienced DUI attorney in the county where you were charged to look into this and to determine how you can hire this attorney. Dui convictions have lasting, longterm consequences.
You will want to contact an experienced lawyer in the court where you got charged.
Your outcome will be a function of your past record, the facts of your case and whether or not there are legal defenses.
Dan