Barra said at a media event an ongoing outside external safety review will guide the company's path forward and is expected to be completed in early 2024.
"We'll work through the challenges we have right now at Cruise," Barra said. "We have to have the right plan."
She declined to offer an opinion on whether she thought regulators have treated Cruise more harshly than Tesla Autopilot.
She also declined to say how much money GM is willing to spend on Cruise going forward until it completes its assessments and has a plan to move ahead.
"We'll talk about the funding necessary" at that point, she added.
Last month, Cruise paused all driverless and supervised car trips in the United States and expanded a safety review of its robotaxis, after California regulators suspended the company's ability to conduct self-driving testing on public roads following an Oct 2 crash in which a pedestrian was dragged 20 feet by a self-driving vehicle after being struck by another vehicle.
The California Public Utilities Commission on Friday ordered Cruise to appear at a Feb 6 hearing for "misleading the Commission through omission regarding the extent and seriousness of the accident" and "making misleading public comments regarding its interactions with the commission."
