A federal judge in Los Angeles wrestled Monday with whether to keep certain documents sealed in a case against Chrysler that prompted the defense bar last year to ask the U.S. Supreme Court to review standards for keeping court records under wraps.

Chrysler Group, now FCA US LLC, had petitioned the high court to reverse a Jan. 11, 2016, ruling by the U.S. Court of Appeals for the Ninth Circuit, which found it lacked “compelling reasons” for sealing documents in a class action over an alleged power module defect. The Ninth Circuit reversed a 2014 ruling by U.S. District Judge Dean Pregerson of the Central District of California, who refused to grant a motion to unseal the documents brought by the Center for Auto Safety in Washington, which had sought to intervene in the case.