Do not plead guilty. Your admission (as opposed to a finding of guilty) in traffic court could be used against you if a civil action is filed. Unless the other driver appears, you have a good chance the ticket will be dismissed. To increase your chances or to minimize damages, hire a lawyer. Traffic ticket fees are not high. There are many great lawyers in your area.
If handled properly, it is highly likely you can keep a clean record and potentially achieve a dismissal. Due to potential civil consequences you should not plead guilty whenever an accident is involved. If this occurred in a Lake County, a trial date should absolutely be set. This does not mean this case is necessarily going to trial, it just enhances the possibility of a dismissal if the complaining witness fails to appear on the court date. You may wish to have an attorney present to ensure the best result possible. Many of us offer free consultations. More information is available at the links below.
The information contained in this answer is offered for informational purposes only. This information does not constitute legal advice, attorney advertising, or establish an attorney-client relationship. Individuals with questions in any area of the law should consult a qualified attorney licensed to practice in that individual's jurisdiction.