Cal. Civil Code § 2989.5

(a) Except as provided in subdivision (c), a lessor shall make available to investigators of the Department of Motor Vehicles, upon presentation of an affidavit that the department has a consumer complaint within its jurisdiction, the records relevant to the transaction complained of. If the affidavit states that the department has reasonable cause to believe there is a pattern of conduct or common scheme in similar transactions, the records relevant to all such similar transactions shall be made available. (b) Except as provided in subdivision (c), on petition of the department alleging the receipt of a consumer complaint within its jurisdiction and alleging that the lessor refuses to make available his records as required, the court shall order the lessor to make available such records or show cause why such records should not be produced. The department shall be awarded reasonable attorney’s fees and costs if it prevails in such action. (c) (1) In the case of a financial institution, or a subsidiary or affiliated corporation of such institution, the Director of Motor Vehicles shall report in writing an apparent violation, or failure to comply with this chapter, evidenced by a consumer complaint, to the agency or department of the state or federal government responsible for supervising the leasing activities of such institution. (2) Within 20 days, such agency or department shall advise the director of the action taken with respect to such report. (3) If such agency or department fails to so advise the director, the director may commence an action to compel the agency or department to cause the production of the records relevant to the consumer complaint.