Nearly 4,000 robotaxis recalled over risk of driving in construction zones Waymo issued a recall for almost 3,900 robotaxis nationwide related to a software problem that may result in vehicles traveling into a closed freeway construction zone while continuing to drive. This latest recall is the second from Waymo, which is based in California, in a little over a month, Reuters reported. Waymo robotaxi recall Dig deeper: The National Highway Traffic Safety Administration filed the new recall, and it’s connected to over a dozen incidents since April in California and Arizona involving Waymo autonomous vehicles that did not identify and drove past ramp closure signs into freeway construction zones and freeway lanes with active construction sites. RELATED: Waymo recalls nearly 3,800 robotaxis for glitch that may allow vehicles to drive into standing water Reuters reported that Waymo enforced freeway driving limitations until it began using improved awareness and responses to freeway closures. Waymo also updated vehicle software to prevent the cars from driving into construction zones. Waymo statement on the recall What they're saying: In a statement obtained by Reuters, Waymo stated last week that it had "identified an area of improvement regarding performance around freeway construction zones. We voluntarily restricted freeway operations last month while making improvements." Have Waymo vehicles been involved in other incidents? Big picture view: In May, Waymo pulled 3,800 robotaixs due to the vehicles entering flooded roads with higher speed limits. Separately on April 20, a Waymo car traveled into a flooded lane in San Antonio, Texas during severe weather. According to Reuters, Waymo stated that the vehicle was unoccupied and no one was injured. However, the incident compelled the organization to evaluate similar circumstances involving high speeds and impassable flooded roads. RELATED: Waymo recalls over 1,200 self-driving cars after minor crashes In the past