Waymo is recalling nearly 3,900 robotaxis in the country after some of its autonomous vehicles reportedly drove into closed freeway construction zones, according to filings submitted by the National Highway Traffic Safety Administration.

The voluntary recall marks the second time in just over a month that the self-driving company has taken this step to address software-related issues in its autonomous driving system.

Illinois Drivers: Waymo Recalls About 3,900 Robotaxis

According to the filings, the recall follows 13 documented incidents in which Waymo robotaxis either entered active freeway construction zones in different cities across the United States, like Phoenix and San Francisco. These vehicles either entered active construction zones or merged into construction activity.

Regulators noted that vehicles using Waymo's 5th generation automated driving system are included in the recall. A letter posted to the agency's website emphasizes that "driving through a closed construction zone increases the risk of a crash."

Waymo actually identified "an area of improvement regarding performance around freeway construction zones." They added that it voluntarily paused freeway operations last month while developing software updates, and decided to initiate the recall as a precautionary measure. They continue to operate safely on surface streets around the country.

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While Waymo works to fix this flaw, robotaxis are now restricted use on freeways in markets like San Fran, LA, Phoenix, and Miami. Luckily, no accidents have been reported around Illinois.