Cal. Veh. Code § 13555

A termination of probation and dismissal of charges pursuant to Section 1203.4 of, or a dismissal of charges pursuant to Section 1203.4a of, or relief granted pursuant to Section 1203.425 of, the Penal Code does not affect any revocation or suspension of the privilege of the person convicted to drive a motor vehicle under this chapter. Such person’s prior conviction shall be considered a conviction for the purpose of revoking or suspending or otherwise limiting such privilege on the ground of two or more convictions.