Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2020-2022 model year Legacy and Outback vehicles to replace all (four) of the Occupant Detection System (ODS) sensors on the front passenger seat.
full bulletin at NHTSA ↗2021 Subaru Outback airbags problems
severe Owners of the 2021 Subaru Outback have filed 16 NHTSA complaints about the airbags at roughly $1,100 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See airbags across all vehicles →
Complaints
16
Recalls
0
Avg fix
$1,100
| Model year | airbags complaints |
|---|---|
| 2017 Outback | 15 |
| 2018 Outback | 8 |
| 2019 Outback | 12 |
| 2020 Outback | 15 |
| 2021 Outback (this page) | 16 |
| 2022 Outback | 6 |
| 2025 Outback | 4 |
1crash
2injuries
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering airbags on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2020-2022 model year Legacy and Outback vehicles to replace all (four) of the Occupant Detection System (ODS) sensors on the front passenger seat.
full bulletin at NHTSA ↗Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2020-2022 model year Legacy and Outback vehicles to replace all (four) of the Occupant Detection System (ODS) sensors on the front passenger seat. Updates to the bulletin are to the power seat service procedure.
full bulletin at NHTSA ↗Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2020-2022 model year Legacy and Outback vehicles to replace all (four) of the Occupant Detection System (ODS) sensors on the front passenger seat.
full bulletin at NHTSA ↗This bulletin announces the service manual correction when diagnosing occupant detection sensor failure.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Two distinct problems emerge from these complaints. The primary issue is occupant detection failure in the passenger seat. Owners report the airbag-off light illuminates and flickers unpredictably even when passengers—particularly those weighing 95–100 lbs—are seated and should trigger protection. The system sometimes detects the passenger right away, sometimes within a mile, sometimes never. One owner received a sensor threshold explanation (65 lbs or less triggers the off state) from the dealership, but that doesn't explain why the detection fails on heavier passengers.
Subaru issued NHTSA Campaign 24V227000 to address this, yet repair parts remain unavailable across multiple dealers for months or longer. One VIN was entirely excluded from recall eligibility despite showing the identical B1784 fault code that the recall targets. Subaru dealers told owners nothing can be done without available parts or recall inclusion.
A second, rarer complaint describes a complete temporary shutdown of airbags plus EyeSight features and cabin controls (HVAC, radio)—lasting roughly 10 minutes then clearing—repeating multiple times. The dealer's software update did not fix it, and technicians cannot reproduce or diagnose the fault.
No repairs have been completed on either issue. Owners express frustration over Subaru's unresponsiveness and the extended recall timeline.
Same Subaru Outback airbags reports on nearby years: 2019 · 2020
Failure modes owners describe
Passenger occupant detection sensor malfunction
Passenger airbag system fails to consistently detect occupants or misidentifies occupancy status, causing the airbag-off indicator to display incorrectly. Affects low-weight passengers (95–100 lbs) unpredictably; sometimes the system recognizes the passenger within a mile of driving, sometimes immediately, sometimes never during a trip.
When: Occurs at various points during operation; one case noted at 17,800 miles
Symptoms owners cite: Airbag-off warning light displayed when passenger is seated; Airbag status changes intermittently between 'on' and 'off' during a single trip; Audible chime accompanying the warning
Codes mentioned: B1784
Repairs/costs cited: NHTSA Campaign 24V227000 recall parts unavailable for repair; one case mentions software update performed without resolution
Recalls/TSBs owners mention: NHTSA Campaign Number 24V227000 (Air Bags) issued; however, repair parts remain unavailable. Subaru confirmed at least one vehicle's VIN is excluded from the recall despite identical symptoms and year/model. One dealer stated there is nothing Subaru can do if the VIN does not show a recall eligibility.
Intermittent safety system shutdown
All safety and convenience systems—including airbags, EyeSight driver-assist features (automatic emergency braking, lane departure, lane keeping), center console controls (HVAC, radio)—simultaneously become non-functional for approximately 10 minutes before resuming normal operation. No warning or error messages precede the failure. Issue recurs frequently.
When: Intermittent; occurred at least 4 times as of complaint date
Symptoms owners cite: All safety systems report as not functioning (airbags, EyeSight, emergency braking, lane departure/keeping); Center console functions unavailable (HVAC, radio); No prior warnings or messages; Issue resolves itself after ~10 minutes
Repairs/costs cited: Dealer has been unable to diagnose; software update applied without correcting the issue; no components replaced
Synthesized from 16 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
The contact owns a 2021 Subaru Outback. The contact received notification of NHTSA Campaign Number: 24V227000 (Air Bags); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts…
Had airbags trouble with your 2021 Subaru Outback?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the airbags problem on the 2021 Subaru Outback?
It's a meaningful issue. 16 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $1,100.
At what mileage does the airbags typically fail?
Based on the 16 complaints filed, airbags issues most often appear around 23,400 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $1,100 for airbags repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to airbags?
No active recalls currently cover airbags issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2021/Subaru/Outback.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.