Zoox recalls certain self-driving vehicles because the cars may not detect smoke as intended, according to multiple reports referencing the company’s recall notice. The issue relates to the vehicle’s ability to perceive smoke during operation, which could affect how the system responds to potential hazards. The recall is intended to address the performance concern by bringing the affected vehicles back into compliance with the expected detection capabilities. Reports do not indicate that the problem has led to a specific, confirmed safety incident linked to smoke detection, but they frame the action as a preventive measure. The recall applies to specified vehicles identified by Zoox, and affected owners are notified as part of the recall process. The companies’ next steps are focused on troubleshooting or updating the system so smoke can be detected reliably, consistent with safety expectations for autonomous driving functions. The reports provide the rationale for the recall and emphasize that it is triggered by a potential limitation in the smoke-detection capability.