Future TechnologyWaymo just recalled nearly 4,000 robotaxis after some drove into freeway construction zones
Key takeaways
- Waymo is recalling roughly 3,900 robotaxis through a software update, its second recall in just over a month
- The fix follows 13 known incidents where cars drove into freeway construction zones: six in Phoenix in April, seven in the San Francisco area in May
- Waymo says the cars sometimes prioritised avoiding other hazards over recognising the construction zone, or failed to spot it at all
- The company has restricted its robotaxis on freeways while it rolls out the remedy
Waymo is pulling back about 3,900 of its robotaxis to fix a software flaw, after some of them drove into freeway construction zones they were supposed to avoid. The company filed the voluntary recall with US regulators on 18 June. It is the Alphabet-owned firm's second recall in just over a month.
The trigger was 13 known incidents. Six happened in Phoenix in April, when Waymo cars drove into closed freeway construction zones. Seven more happened around San Francisco in May, where the cars entered freeway lanes with active roadworks. No injuries were reported, but driving an empty robotaxi into a coned-off work site is exactly the kind of thing that makes regulators and the public nervous.
What actually went wrong
According to the filing, the cars sometimes entered and kept driving at speed through freeway construction zones because the system either failed to recognise the zone, or prioritised avoiding other hazards on the road over staying out of it. In plain terms, the software made the wrong trade-off in a tricky moment.
The recall covers vehicles running Waymo's fifth-generation driving system. While the company works on the full remedy, it has restricted how its robotaxis use freeways. Waymo says the update addresses the behaviour, and a recall here means a software push rather than thousands of cars rolling into a garage.
Why it matters
This is Waymo's fourth recall in two years, and the pattern is the real story. Robotaxis are no longer a pilot in one city. They carry paying passengers across several US metros, and they are expanding. Each recall is a reminder that "safer than humans" is a claim that has to hold up on the messy edge cases: roadworks, emergency scenes, weird lane markings, the stuff human drivers handle on instinct.
The counterpoint is that a software recall is genuinely different from a mechanical one. Waymo can identify a fault, write a fix, and update the whole fleet in days. No human driver gets a patch for misreading a construction zone. That speed is the actual promise of autonomy, and it is also why the bar for getting these decisions right keeps climbing.
For now, if you are riding a Waymo on a freeway in the coming weeks, expect it to be more cautious than usual. That is the system working as intended, even if it makes the trip a little slower.