DTC B00A0-00 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin. IF YOU CONFIRM DTC B00A0-00 (OCCUPANT DETECTION SENSOR UNIT) is stored, AND OCS zero point reset cannot be performed, (continued on the next page)
full bulletin at NHTSA ↗2012 Nissan Leaf airbags problems
moderate Owners of the 2012 Nissan Leaf have filed 10 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
10
Recalls
0
Avg fix
$1,100
| Model year | airbags complaints |
|---|---|
| 2011 Leaf | 35 |
| 2012 Leaf (this page) | 10 |
| 2013 Leaf | 12 |
| 2014 Leaf | 4 |
| 2015 Leaf | 8 |
When does it fail?
Of the 10 airbags complaints filed for the 2012 Nissan Leaf, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Among the 6 model years of Nissan Leaf in our records for airbags problems, this one ranks #3 by owner-complaint volume.
No new NHTSA airbags complaint has been filed on this vehicle in over 6 years — the issue may be aging out of the active population.
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.
DTC B00A0-00 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
full bulletin at NHTSA ↗DTC B00A0-00 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
full bulletin at NHTSA ↗DTC B00A0-00 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
full bulletin at NHTSA ↗DTC B00A0-00 STORED IF YOU CONFIRM DTC B00A0-00 (OCCUPANT DETECTION SENSOR UNIT) is stored And OCS zero point reset cannot be performed (continued on the next page) And The following screen displays: ACTION 1. Check the Occupant Classification System (OCS) control unit using the ODS Analysis tool software. ï· Refer to SERVICE PROCEDURE on page 5. HINT: âOCSâ may also be referred to as âODSâ. 2. Perform â75-zero RESETâ.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2012 Nissan Leaf has a chronic passenger occupancy sensor failure tied to the seat cushion mat assembly. The fault triggers a continuous flashing airbag warning light and disables the passenger airbag—sometimes even with an adult in the seat. Owners cite diagnostic code B1018 across the board. Nissan's only fix is replacing the entire passenger seat cushion assembly for $3,900–$4,000, a sum that can approach the vehicle's used-market value. Dealers report the part is no longer manufactured, out of stock, or unavailable; aftermarket alternatives do not meet safety standards. One owner paid $260 for a diagnostic, only to learn the problem is unfixable.
The failure recurs even after reset attempts or partial repairs (like sensor/cushion swap), indicating the underlying design or component is not remedied by interim measures. Intermittent cases where the sensor disables the airbag despite proper occupancy confound dealers, who refuse further diagnosis. Owners point to a published complaint list of over 2,000 affected 2011–2012 owners and note that Nissan implemented a fix in 2013+ model years—later resulting in a mandatory recall for those generations—but has not recalled the 2011–2012 vehicles. Nissan asserts the failure is not covered under the 10-year/100,000-mile warranty.
Same Nissan Leaf airbags reports on nearby years: 2011 · 2013
Failure modes owners describe
Passenger occupancy sensor (OCS) failure
The seat occupant classification module or occupancy sensor in the passenger seat fails, causing the passenger airbag to disable even when the seat is occupied. Owners report the sensor mat in the seat is the root cause. Nissan's stated remedy is to replace the entire passenger seat cushion assembly (which includes the side airbag and seat heater). No component-level repair is offered.
When: Early in ownership (one report at 14,470 miles); failure appears independent of mileage based on complaint patterns
Symptoms owners cite: Airbag warning light flashing red on console continuously; Passenger airbag disabled indicator on dashboard; Dashboard and general error lights flashing; Passenger airbag disabled despite adult occupant present
Codes mentioned: B1018
Repairs/costs cited: $3,900–$4,000 to replace entire passenger seat cushion assembly; aftermarket seats do not meet safety standards according to dealers; parts no longer in stock or no longer manufactured by Nissan
Recalls/TSBs owners mention: No recall for 2011–2012 model years despite known issue affecting over 2,000 owners. Later model years (2013–2016) received mandatory recall for same failure. Nissan states failure not covered under 10-year/100,000-mile warranty.
Airbag warning light recurrence after reset
Even when dealer resets the system and attempts repair (sensor/cushion replacement), the airbag warning light reappears within a short period, indicating the underlying fault is not resolved by reset or attempted repair.
When: Two days after initial reset and diagnostic
Symptoms owners cite: Airbag warning light returns after reset; Side airbag sensor and cushion replacement does not prevent recurrence
Repairs/costs cited: Reset and side airbag sensor/cushion replacement attempted but failed to resolve recurring fault
Passenger airbag misdetection
The occupancy sensor triggers the airbag disabled indicator even when a full-sized adult is seated in the passenger seat, or triggers it intermittently with the same occupant. Dealer unable or unwilling to diagnose or repair the intermittent fault.
When: Intermittent, occurring with multiple different adult occupants
Symptoms owners cite: Passenger airbag disabled indicator activates with occupied seat; Problem does not recur reliably for dealer diagnosis
Repairs/costs cited: Dealer refused to attempt repair after unable to recreate problem
Synthesized from 10 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 5 most recent
The airbag light is on, and the dealer has told us the entire front passenger seat will need to be replaced for $4,000 to fix the problem.
While starting the vehicle the airbag warning light illuminates (continuously flashing) and continues to flash while driving. On 11/22/2019 the Nissan dealer reported that the seat occupant classification module has failed and is reporting a trouble code b1018. The repair involves replacing the passenger seat cushion assembly at a cost of $3938. The cost to repair is a significant portion of the…
B1018 passenger seat senosr needs replacement Nissan says is not covered under there 10 year 100,000 mile warranty. Will cost $3900.00 to replace the passenger seat. What is covered under the air bag warranty? This is a major safety issue for me and my family.
My Nissan Leaf is showing a warning sign that front passenger side airbag is disabled. I see that this is a common complaint from many 2011-12 Nissan Leaf owners. I would like to add my name to the list of owners who had a similar complaint and please update if you make Nissan do a recall for this issue.
Despite an adult occupying the front passenger seat, the passenger airbag disabled indicator came on. This happened with two different full sized adults. Dealer could not recreate the problem and refused to attempt a repair. *tr
Had airbags trouble with your 2012 Nissan Leaf?
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 2012 Nissan Leaf?
It's a documented issue but not catastrophic. 10 complaints have been filed. Repairs average $1,100 and most owners catch it before it causes a breakdown.
At what mileage does the airbags typically fail?
Based on the 10 complaints filed, airbags issues most often appear around 39,118 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/2012/Nissan/Leaf.
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.