Appellant, a minor, was convicted of vehicular manslaughter, and sentenced to an indefinite suspension of her driver’s license as a condition of probation. On appeal, she challenged the suspension, arguing that Vehicle Code sections 13203, 13361, and 13556 limit the authorized period of suspension to twelve months. The appellate court agreed, and struck the condition of probation (as more than a year had elapsed since the entry of the dispositional order.) Since the sentence was unauthorized, it was not waived despite the lack of objection below.