Tesla CEO Elon Musk revealed that the company’s robotaxis still face difficulties spotting pets on roads after dark, highlighting limitations of their camera-only sensor system just as European regulators prepare to vote on its approval.
- Tesla robotaxis struggle to detect animals in low light conditions.
- EU regulators to vote on camera-only sensor approval on October 6.
- Tesla avoids lidar and radar despite safety debate and legal proposals.
What happened
Elon Musk stated that Tesla’s robotaxis still cannot reliably detect pets such as cats on roads at night, describing the challenge as trying to see 'grey kittens on grey tarmac.' This reflects the limitations Tesla faces using a camera-only sensor suite in low-contrast, nighttime conditions. Meanwhile, in Austin, where Tesla operates some of its robotaxi pilot services, operating hours have been extended from 10 PM to 11 PM despite these detection challenges.
Why it matters
Tesla’s decision to rely solely on cameras — rejecting lidar and radar — has sparked ongoing debate about safety and sensor effectiveness for autonomous driving. Cameras require sufficient light and contrast to identify objects, while lidar and radar provide additional sensing mechanisms that do not depend on visibility conditions. Musk has repeatedly dismissed lidar as unnecessary and stated that multiple sensor types can cause interference and reduce safety.
Safety concerns have been reinforced by incidents involving Tesla vehicles in the US, including fatal crashes of Model 3 cars operating with full self-driving software in the dark, where object detection failures may have been a factor. In contrast, competitors like Waymo use a combination of lidar, radar, and many cameras to power around-the-clock driverless vehicles, illustrating a divergent approach in autonomous vehicle sensor architecture.
What to watch next
In addition to regulatory developments, Tesla’s progress in improving nighttime animal detection will be a key technical milestone. Industry observers and safety advocates will closely monitor whether Tesla can enhance its vision-based system to prevent collisions with pets and other hard-to-see objects, or if pressure will mount for the company to reconsider sensor diversity in future robotaxi iterations.