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NHTSA campaign 26V227000 · manufacturer recall UNW

2018–2022 Honda Odyssey: air bags recall

Air bags that deploy unexpectedly can increase the risk of injury.

critical 440,830 vehicles affected 48% reported repaired

What was reported

Source: manufacturer filing, 49 CFR Part 573
Problem Honda (American Honda Motor Co.) is recalling certain 2018-2022 Odyssey vehicles. A software programming error can cause the side and side curtain air bags to deploy unexpectedly. Risk Air bags that deploy unexpectedly can increase the risk of injury. Fix Dealers will reprogram the supplemental restraint system (SRS) electronic control unit (ECU) software or replace the ECU, as necessary, free of charge. Owner notification letters were mailed May 27, 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's number for this recall is UNW. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov beginning April 16, 2026. The information in your report suggests that Honda (American Honda Motor Co.) may have been aware of this issue more than five business days before filing a report with NHTSA. Please be reminded that under Federal law, this agency is to be notified of all safety defect and/or noncompliance decisions within five business days. 49 CFR 573.6 Significant civil penalties can be assessed for this violation.

Reported to NHTSA Apr 9, 2026 by Honda (American Honda Motor Co.), owners notified May 26, 2026.

What that means, in plain English

Source: WhichTrim's reading of the filing above — not NHTSA's wording

Unexpected airbag deployment at speed removes driver control without warning and directly causes injury, meeting the critical threshold for loss of vehicle control.

Written for us by a language model from the manufacturer's filed text, which is quoted in full above. Where the two differ, the filing is the record and this is only our summary of it.

Which vehicles are covered

Source: NHTSA campaign 26V227000

Vehicles built Jan 24, 2017 to Jun 3, 2022 — a VIN outside that window is not part of this campaign even if the year, make and model match.

Model yearClassSafety SignalRecalls on file
2018 Honda OdysseyMinivanF16
2019 Honda OdysseyMinivanF20
2020 Honda OdysseyMinivanF14
2021 Honda OdysseyMinivanF8
2022 Honda OdysseyMinivanF9

Those are the model years inside WhichTrim's range, 2016 onward. The campaign may cover others outside it, and the only thing that settles whether one specific vehicle is included is its VIN.

How much of it has been fixed

Source: manufacturer quarterly report, 49 CFR 573.7
Reported repaired 48%

of the campaign

2 quarters into the six-quarter reporting window, and still climbing.

This is the manufacturer's own cumulative count of vehicles it has inspected and repaired, divided by the vehicles the campaign covers. It files that count with NHTSA every quarter for six consecutive quarters, starting from the quarter in which owners were told a remedy was ready, and then the obligation ends — so a figure on an older campaign is where the count stopped, not where it stands today.

It rarely reaches 100%, and not because the work was not done. The same report asks manufacturers to count vehicles they could not reach at all — exported, stolen, scrapped, or simply never located — and those stay in the denominator. A low number means a lot of these vehicles are still out there unrepaired; it does not tell you which ones.

The federal paperwork

Source: nhtsa.gov

Check one specific vehicle

A recall applies to a build range, so year, make and model cannot settle it. Type the VIN and the WhichTrim recall report checks this campaign’s build window and engine against it.

Campaign 26V227000 · the manufacturer calls it UNW

Own one, or run a fleet? Recall Watch checks each VIN against every new NHTSA campaign and emails you when one lands, this one's expansions included. Or take a free one-line alert by model year.

NHTSA’s investigation file links this recall to preliminary evaluation PE25018.

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A recall covers a build range. Only your VIN settles it.

Check it with the WhichTrim recall report now, or have us check it every night and email you when something new is filed.

Photo: Taiga Miyamoto / Unsplash

Common questions

Source: NHTSA, 49 CFR Part 573

Is UNW the same recall as 26V227000?

Yes. UNW is the number Honda (American Honda Motor Co.) uses for this campaign in its own paperwork and in the letter it sends owners. 26V227000 is the number NHTSA files it under. One recall, two references — dealers and service departments generally quote the manufacturer's.

Does this recall repair cost anything?

No. Federal law requires the manufacturer to remedy a safety defect or a compliance failure at no charge, for vehicles up to 15 years old measured from the date of first sale. A dealer that asks you to pay for a recall repair is in the wrong.

How do I know whether my vehicle is included?

By VIN, not by model year. This campaign covers vehicles built Jan 24, 2017 to Jun 3, 2022. The manufacturer files a build range with NHTSA and only vehicles inside it are covered, so two identical-looking cars from the same year can differ. NHTSA's own lookup checks a VIN against the manufacturer's list.

What if the repair is not available yet?

It happens, and often. Manufacturers must notify owners when a defect is found even if the parts or the software are not ready, then notify them a second time once the remedy exists. The remedy filed for this campaign is described above.

What did the manufacturer say was wrong?

The problem, risk and fix quoted on this page are the manufacturer's own words as filed with NHTSA under 49 CFR Part 573. WhichTrim does not paraphrase them.

Who started this recall?

NHTSA's record credits NHTSA's Office of Defects Investigation. NHTSA’s investigation file links this recall to preliminary evaluation PE25018. A recall can begin with the manufacturer's own testing, with a defect investigation, or with a compliance test against a Federal Motor Vehicle Safety Standard.