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Ford has announced it will recall roughly 456,000 Bronco Sport and Maverick vehicles due to a problem with battery detection that could lead to sudden power loss, escalating the risk of accidents.

The National Highway Traffic Safety Administration said that the affected vehicles’ body and powertrain control modules might fail to detect a drop in battery charge. This flaw could cause the cars to stall unexpectedly or be unable to restart, and could also limit the use of essential features like hazard lights.

The recall specifically includes about 403,000 model year 2021-2024 Bronco Sports manufactured between February 2020 and March 2024, and over 53,000 model year 2022-2023 Mavericks produced from February 2021 to October 2022. Ford dealers are set to recalibrate the relevant modules at no charge to the vehicle owners, with notification letters scheduled to be sent out on May 13.

While the necessary software update to fix the issue is not yet available, a Ford spokesperson assured that it would be ready later in the second quarter. The company added that “safety is a top priority, and we are taking proactive measures to address this issue promptly and effectively.” As of February 8, despite receiving numerous warranty claims and customer complaints related to the issue, Ford reported no injuries.

In addition to this recall, the National Highway Traffic Safety Administration recently scrutinized another recall affecting nearly 43,000 Bronco Sport and Escape SUVs for a separate risk involving potential fuel leaks that could lead to fires. This scrutiny arose because the proposed fix did not adequately address the risk of fuel leaking onto hot engine surfaces.