Musk Cites Pet Detection Issues for Tesla Robotaxi Night Limitations

Tesla has extended its Robotaxi service hours in Austin by one hour, but CEO Elon Musk identified the difficulty of detecting low-contrast objects in the dark as the main obstacle to operating around the clock.

What Happened

Late Friday night, Tesla’s Robotaxi account announced that the Austin service is now available until 11 p.m., up from the previous 10 p.m. cutoff. Following the announcement, Musk reposted the update and explained the technical limitation preventing further extension. "The main thing we’re trying to solve is making sure that we don’t run over pets when they’re hard to see at night," Musk stated. "Literally trying to avoid grey kittens on grey tarmac in the dark."

The source notes that this adjustment comes fifteen months after Tesla launched the Robotaxi service in Austin in June 2025. At launch, the app accepted ride requests from 6 a.m. to midnight. Despite the addition of Cybercabs last month, the service has not significantly scaled in terms of operating hours, now closing one hour earlier than it did on day one.

Why It Matters

Musk’s explanation centers on a low-light, low-contrast detection problem, which is widely recognized as a weakness of camera-based systems. Cameras are passive sensors that rely on light and contrast to identify objects, whereas lidar and radar are active sensors that emit their own signals to determine distance and shape, functioning consistently regardless of ambient light conditions.

This distinction is critical because competitors like Waymo utilize sensor fusion. Waymo’s sixth-generation system includes 13 cameras, 4 lidars, and 6 radars, allowing its fleet of approximately 4,000 vehicles to operate 24 hours a day. Tesla, conversely, removed radar from its vehicles in May 2021, dropped ultrasonic sensors in 2022, and has never shipped a car with lidar. Musk has historically dismissed lidar as a "fool’s errand" and argued that sensor contention reduces safety, though he previously acknowledged that vision with high-res radar would be better than pure vision.

The Bottom Line

Tesla has extended Robotaxi hours in Austin to 11 p.m., but the CEO’s statement highlights the ongoing challenge of low-contrast detection in the dark. While competitors with lidar and radar operate continuously, Tesla’s service remains constrained by the specific conditions under which its camera-based system functions best.