Honda is recalling more than 440,000 Odyssey minivans in the United States after a defect was found in the airbag system that could cause deployment without a crash. The issue affects vehicles from the 2018 to 2022 model years and has already been associated with reported injuries.
The recall centres on a software error within the supplemental restraint system, which may misinterpret road impacts as collisions. Safety regulators in the United States have also indicated that the timing of Honda’s disclosure could face scrutiny under federal reporting rules.
Software Error Linked to Unintended Airbag Deployment
The National Highway Traffic Safety Administration (NHTSA) said a programming fault could cause side and side-curtain airbags to deploy unexpectedly during normal driving conditions. According to the agency, impacts such as driving over potholes, speed bumps or road debris may be incorrectly detected as side collisions.
This defect stems from an overly sensitive calibration within the airbag control module. According to Car and Driver, the system’s deployment threshold may be triggered by underbody impacts rather than genuine crashes, leading to sudden activation without warning.
The recall affects 440,830 Honda Odyssey vehicles manufactured between January 2017 and June 2022. Later production models are not included, as the issue was reportedly corrected during manufacturing.
Honda has acknowledged 130 warranty claims connected to the defect, alongside 25 reported injuries. No fatalities have been recorded. Dealers will reprogram the airbag system or replace the affected electronic control unit at no cost to owners.
The company has instructed customers to bring their vehicles to authorised dealerships for inspection and repair. Notification letters are expected to be sent to owners in May 2026, while a stop-sale order has been issued for affected vehicles still in dealer inventories.
Regulatory Scrutiny over Reporting Timeline
Beyond the technical fault, regulators have raised concerns about the timing of Honda’s disclosure. The NHTSA noted that the company may have been aware of the issue more than five business days before formally notifying the agency.
Under US federal law, automakers are required to report safety defects within that timeframe. According to Fox Business, the agency warned that failure to comply could result in significant civil penalties.
The defect itself was not identified overnight. Investigations into the issue date back several years, with Honda initially examining reports of unintended airbag deployment as early as 2017. The company at one stage concluded there was no safety risk, before reopening the matter following regulatory attention in 2025.
The NHTSA’s Office of Defects Investigations began a preliminary evaluation after receiving multiple complaints from drivers. These reports described airbags deploying without collision, prompting further scrutiny and ultimately leading to the recall decision in April 2026.
Owners can check whether their vehicle is affected through official recall databases or by contacting Honda directly. The manufacturer has stated that corrective measures will be provided free of charge, focusing on recalibrating or replacing the faulty system components.
