Waymo recalls nearly 4,000 robotaxis for software issues.
Vehicles may accidentally go onto closed highway construction zones.
Waymo vehicles will avoid highways while a fix is found.
Update: This story has been updated with a statement from a Waymo spokesperson.
Alphabet, parent company of Google, has recalled 3,871 units of its Waymo autonomous robotaxi in the United States because the vehicles can drive onto closed highway construction zones. The issue is software-related, prompting a recall with the National Highway Traffic Safety Administration (NHTSA).
