California Code, Code of Civil Procedure - CCP § 683.170

(a) The renewal of a judgment pursuant to this article may be vacated on any ground that would be a defense to an action on the judgment, including the ground that the amount of the renewed judgment as entered pursuant to this article is incorrect, and shall be vacated if the application for renewal was filed within five years from the time the judgment was previously renewed under this article.

(b) Not later than 60 days after service of the notice of renewal pursuant to Section 683.160, the judgment debtor may apply by noticed motion under this section for an order of the court vacating the renewal of the judgment. The notice of motion shall be served on the judgment creditor. Service shall be made personally or by mail.

(c) Upon the hearing of the motion, the renewal may be ordered vacated upon any ground provided in subdivision (a), and another and different renewal may be entered, including, but not limited to, the renewal of the judgment in a different amount if the decision of the court is that the judgment creditor is entitled to renewal in a different amount.