Honda is telling hundreds of thousands of Odyssey owners to get their vans checked after a software bug was found that can make side and curtain airbags fire off during everyday driving, not just in a crash.
American Honda is recalling 440,830 Odyssey minivans from the 2018 to 2022 model years after federal filings showed a programming error in the airbag control system can trigger second and third row side and curtain airbags on hard impacts to the underbody. Think hitting a nasty pothole, bouncing over a speed bump too fast, or running over road debris. Dealers will reprogram the supplemental restraint system control unit, or replace it if needed, at no cost to owners. Notification letters are expected to start landing in mailboxes in late May, and Honda says VIN-based recall lookups will be available on federal and manufacturer sites once the campaign is fully live.
What the safety filings say
Federal recall documents explain that the Supplemental Restraint System (SRS) electronic control unit was set up with the wrong deployment parameters. That mistake left too little room between normal G-signal readings from rough roads and the signals that indicate a genuine side impact. In that narrow gap, the system can misread a jolt as a crash and accidentally fire second and third row side and side curtain airbags. According to Car and Driver, the National Highway Traffic Safety Administration (NHTSA) paperwork specifically calls out potholes, speed bumps and debris striking the underside of the van as possible triggers. The recall, listed under Honda’s internal campaign number UNW, covers Odysseys built between January 2017 and June 2022.
Timeline and investigation
Honda says it first caught wind of a potential unintended airbag deployment back in November 2017 and kept digging into the issue through 2021 before closing the investigation. The matter did not stay closed for long. A preliminary evaluation by NHTSA opened in October 2025 and pushed Honda to reopen its review and ultimately issue a formal recall. As reported by Autoblog, the company submitted its official recall report to federal regulators in April 2026. Both Honda’s filings and regulator documents point to software calibration in the SRS control module as the culprit, rather than any mechanical defect in the airbag inflators themselves.
Scope and reported incidents
The recall covers about 440,830 Odyssey minivans, all of them 2018 through 2022 model years sold in the United States. Regulators estimate that only a very small slice of those vans is actually at risk, but random, violent airbag deployments do not need to be common to cause trouble. News reports say Honda has received roughly 130 warranty claims and about 25 injury reports tied to airbags going off when they should not. So far, there are no known deaths associated with the defect, according to Fox Business.
What owners should do
Owners can find out if their Odyssey is covered by entering the vehicle identification number on NHTSA’s recall lookup page or Honda’s recall site once VIN searches are active. Industry coverage says those VIN tools became available in mid April, and Honda plans to start mailing owner notices around May 25. Dealers will reprogram the SRS control unit or replace the module if required, all free of charge. Honda’s recall hotline is 1-888-234-2138, and the campaign is identified as UNW, according to Boston 25 News. If owners run into delays getting an appointment or have trouble getting the fix scheduled, the NHTSA vehicle safety hotline is 1-888-327-4236.
Why this matters
Airbags are supposed to be invisible safety nets until the moment they are needed. When they go off without a crash, they can injure people, or worse, start a chain reaction that leads to a collision. That is why regulators treat these cases as a big deal even when the odds of a failure are low.
Safety analysts say this recall is another reminder that modern vehicle safety is increasingly governed by code. A few lines of calibration data in an airbag control module can spell the difference between a normal bump in the road and a cabin suddenly filled with exploding airbags. Problems like this can simmer quietly for years until driver complaints and federal investigations force the issue into the open, according to Road & Track. For families relying on an Odyssey as the daily kid hauler and road trip shuttle, it is a nudge to double check recall status before loading everyone in for a long drive.
To see if your van is affected, enter your VIN at NHTSA and schedule the free dealer repair as soon as it is offered. Honda and federal regulators say the fix typically involves a software update to the control unit or a full module replacement, and owners are urged to move this recall near the top of their to-do list.
