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2011 Nissan Leaf

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2011 Nissan Leaf do not stand out strongly from the model-year median of 55.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

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When problems were reported

Mileage at the reported incident

76 reports with mileage · 19 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Air Bags. Review the 35 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 29 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes. Review the 16 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

5 crash reports0 fire reports3 injury reports

Air Bags complaints

35 reports
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49,000 miles · Apr 3, 2021
Air Bags

PASSENGER AIRBAG SENSOR IS NOT WORKING. WHEN CAR IS TURNED ON AND DRIVING, THE DASHBOARD CONTINUALLY DISPLAYS A RED FLASHING WARNING LIGHT INDICATING AN AIRBAG MALFUNCTION. THERE IS ALSO A MESSAGE CONTINUOUSLY DISPLAYING THAT THE PASSENGER AIR BAG IS OFF. NEWER NISSAN LEAF MODELS HAVE HAD THE SAME PROBLEM AND HAVE BEEN RECALLED…

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PASSENGER AIRBAG SENSOR IS NOT WORKING. WHEN CAR IS TURNED ON AND DRIVING, THE DASHBOARD CONTINUALLY DISPLAYS A RED FLASHING WARNING LIGHT INDICATING AN AIRBAG MALFUNCTION. THERE IS ALSO A MESSAGE CONTINUOUSLY DISPLAYING THAT THE PASSENGER AIR BAG IS OFF. NEWER NISSAN LEAF MODELS HAVE HAD THE SAME PROBLEM AND HAVE BEEN RECALLED, BUT NOT THE 2011 YEAR. IT SHOULD BE RECALLED. ESTIMATED COST TO FIX IS $3000.

NHTSA ODI #11406264

110,000 miles · Dec 29, 2020
Air Bags

AIRBAG LIGHT FLASHING. PASSENGER AIR BAGS ARE DISABLED. DEALER FIX IS A NEED A NEW PASSENGER SEAT AT A COST OF $3,000+. CURRENT FAULT CODE IS B1018. OCCUPANT SENSOR UNIT FAIL. SEAT IS PERFECT AND NO ONE SITS ON IT - IT JUST STOPPED WORKING. THIS IS A KNOWN IISSUE

NHTSA ODI #11385388

62,000 miles · Nov 13, 2020
Air Bags

2011 NISSAN LEAF HAS CODE B1018 OCCUPANT SENS(UNIT FAIL) FOLLOWING A CUP OF WATER SPILLED ON FRONT SEAT. VEHICLE WAS STATIONARY AT TIME. ONLY PROPOSED REMEDY IS TO REPLACE FRONT SEAT AND SENSOR FOR ~$2,624. 2013-2016 LEAF WERE RECALLED NHTSA CAMPAIGN NUMBER 16V244000; PLEASE EXPAND RECALL TO 2011 & 2012 NISSAN LEAF.

NHTSA ODI #11374557

87,344 miles · Jul 28, 2020
Air BagsSeats

AIRBAG LIGHT FLASHING. PASSENGER AIR BAGS ARE DISABLED. DEALER FIX IS A NEED A NEW PASSENGER SEAT AT A COST OF $3,000+. CURRENT FAULT CODE IS B1018. OCCUPANT SENSOR UNIT FAIL. NO DAMAGE TO SEAT OR CUSHION. IT JUST STOPPED WORKING. SAFETY ISSUE. SAFETY RECALL SHOULD BE IMPLEMENTED.

NHTSA ODI #11341967

108,000 miles · Feb 25, 2020
Air Bags

AIR BAG LIGHT FLASHES INDICATING AIR BAG SYSTEM INOPERATIVE. IT CAN BE RESET BY RECYCLING THE CAR ON/OFF 3 TIME WITHIN CERTAIN TIME LIMITS. THE LIGHT STARTS FLASHING AGAIN WITHIN ABOUT 5-20 MILES OF DRIVING. SAME PROBLEM ON OTHER NISSAN LEAFS THAT WERE PREVIOUSLY RECALLED. NISSAN DEALER WANTS $250 AND CHANGE TO DIAGNOSE THE …

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AIR BAG LIGHT FLASHES INDICATING AIR BAG SYSTEM INOPERATIVE. IT CAN BE RESET BY RECYCLING THE CAR ON/OFF 3 TIME WITHIN CERTAIN TIME LIMITS. THE LIGHT STARTS FLASHING AGAIN WITHIN ABOUT 5-20 MILES OF DRIVING. SAME PROBLEM ON OTHER NISSAN LEAFS THAT WERE PREVIOUSLY RECALLED. NISSAN DEALER WANTS $250 AND CHANGE TO DIAGNOSE THE PROBLEM AND THEN TELL ME WHAT THE SOLUTION IS, BUT EVERYBODY ALREADY KNOWS THE SOLUTION IN A FEW THOUSAND DOLLARS TO REPLACE THE PASSENGER SEAT AND SENSOR. THE NISSAN CUSTOMER AFFAIRS OFFICE INSISTS THAT I PAY THE DIAGNOSIS FEE DESPITE THE FACT THAT THE DASH BOARD LIGHT ALREADY DIAGNOSES THIS PROBLEM, WHICH ALONG WITH THE KNOW HISTORY OF NISSAN LEAF CLEARLY POINTS TO THE KNOWN PROBLEM. NISSAN CUSTOMER AFFAIRS SAYS "WE WILL CONSIDER GOOD WILL ASSISTANCE" - AFTER I PAY THE DIAGNOSIS, BUT LATER IN THE CALL NOTED THAT THE CAR IS OUT OF WARRANTY SO IT IS CLEAR NO GOOD WILL ASSISTANCE IS BEING CONSIDERED. THE DEALER SERVICE MANAGER (HAYWARD) TELLS ME THAT HE HAS HAD A NUMBER OF LEAFS IN WITH THE AIRBAG LIGHT FLASHING AND IT COULD BE "ANYTHING FROM A LOOSE CONNECTOR TO THE WIRING HARNESS," WHICH INTERESTINGLY IS A SET OF POSSIBILITIES THAT EXCLUDES THE SENSOR/SEAT REPLACEMENT WHICH IS THE WELL KNOWN FIX. THIS IS A SAFETY ISSUE THAT IS NISSAN'S RESPONSIBILITY. PLEASE RECALL THIS VEHICLE. THANKS.

NHTSA ODI #11311406

Mileage unknown · Dec 20, 2019
Air Bags

PASSENGER AIR BAG HAS SHUT OFF. DEALER RAN A DIAGNOSTIC TEST AND SAID I NEED A NEW PASSENGER SEAT AT A COST OF $3,182. CURRENT FAULT CODE IS B1018.

NHTSA ODI #11290303

58,800 miles · Dec 4, 2019
Air Bags

THE AIRBAG WARNING LIGHT AND DANGER SYMBOL BEGAN FLASHING RECENTLY. TOOK THE CAR TO THE DEALERSHIP AND THEY SAID THE AIRBAG SENSOR IN THE SEAT FAILED AND NEEDED TO BE REPLACED AND THE AIRBAGS WOULD NOT FUNCTION UNTIL THE REPAIR WAS COMPLETED. THIS VEHICLE HAS UNDER 60,000 MILES ON IT AND THE REPAIR PART COSTS NEARLY $3000 WHIC…

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THE AIRBAG WARNING LIGHT AND DANGER SYMBOL BEGAN FLASHING RECENTLY. TOOK THE CAR TO THE DEALERSHIP AND THEY SAID THE AIRBAG SENSOR IN THE SEAT FAILED AND NEEDED TO BE REPLACED AND THE AIRBAGS WOULD NOT FUNCTION UNTIL THE REPAIR WAS COMPLETED. THIS VEHICLE HAS UNDER 60,000 MILES ON IT AND THE REPAIR PART COSTS NEARLY $3000 WHICH IS ABOVE THE KBB VALUE OF THE VEHICLE. THERE WAS NO INCIDENT TO REPORT, JUST A FAILURE ON THE VEHICLE.

NHTSA ODI #11287002

65,581 miles · Nov 18, 2019
Air Bags

ILLUMINATED AIRBAG WARNING LIGHTS FOR FRONT PASSENGER SEATS, DIAGNOSED BY NISSAN DEALER AS A FAILED SENSOR. WAS TOLD THE WHOLE FRONT PASSENGER SIDE SEAT BOTTOM WOULD NEED TO BE REPLAED (ESTIMATE $3,185.61). ALSO TOLD THAT THE FAILURE OF THIS SENSOR MEANT THAT ALL AIRBAGS WERE DEACTIVATED.

NHTSA ODI #11280868

Mileage unknown · Jul 25, 2019
Air Bags

2011 NISSAN LEAF. CONSUMER WRITES IN REGARDS TO DEFECTIVE OCCUPANT SEAT SENSOR. *LD *DT *DT *JS*DT *JS*DT CONSUMER STATED I WANTED TO LET YOU KNOW THAT I HEARD FROM THE NISSAN DEALERSHIP LAST NIGHT (THURSDAY) AND AM TOLD THE REPAIR HAS BEEN COMPLETED. I PLAN TO PICK UP THE CAR TONIGHT. THE LOCAL DEALER WAS NOT SURE WHAT BECAME…

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2011 NISSAN LEAF. CONSUMER WRITES IN REGARDS TO DEFECTIVE OCCUPANT SEAT SENSOR. *LD *DT *DT *JS*DT *JS*DT CONSUMER STATED I WANTED TO LET YOU KNOW THAT I HEARD FROM THE NISSAN DEALERSHIP LAST NIGHT (THURSDAY) AND AM TOLD THE REPAIR HAS BEEN COMPLETED. I PLAN TO PICK UP THE CAR TONIGHT. THE LOCAL DEALER WAS NOT SURE WHAT BECAME OF THE DEFECTIVE SEAT/SENSOR AND SAID STAFF FROM NISSAN DID ALL THE WORK, NOT THE LOCAL DEALERSHIP.*JB CONSUMER UPDATE, I HEARD FROM MY LOCAL NISSAN DEALER AND WAS TOLD THEY HAVE AGREED TO REPLACE THE SEAT.*JB INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR*JB

NHTSA ODI #11234415

67,000 miles · May 14, 2019
Air Bags

THE PASSENGER SEAT OCCUPANCY SENSOR IS FAILING. THIS CAUSES THE PASSENGER AIRBAG TO TURN OFF AND THE WARNING LIGHTS TO FLASH ON THE DASH. THIS CONDITION MAY ALSO DISABLE THE DRIVERS AIRBAG. NISSAN ESTIMATE TO REPAIR IS OVER $3200, THE ENTIRE SEAT CUSHION ASSEMBLY MUST BE REPLACED. THIS IS OVER HALF THE VALUE OF THE CAR. NISSAN …

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THE PASSENGER SEAT OCCUPANCY SENSOR IS FAILING. THIS CAUSES THE PASSENGER AIRBAG TO TURN OFF AND THE WARNING LIGHTS TO FLASH ON THE DASH. THIS CONDITION MAY ALSO DISABLE THE DRIVERS AIRBAG. NISSAN ESTIMATE TO REPAIR IS OVER $3200, THE ENTIRE SEAT CUSHION ASSEMBLY MUST BE REPLACED. THIS IS OVER HALF THE VALUE OF THE CAR. NISSAN HAS RECALLED OTHER YEARS AND MODELS FOR THE SAME OR SIMILAR ISSUE, BUT NOT THE 2011 MODEL. THIS SERIOUS, KNOWN SAFETY DEFECT SHOULD BE ADDRESSED BY NISSAN IN A RESPONSIBLE MANNER. THE OCS SYSTEM CAN BE RESET, BUT THE TROUBLE APPEARS AGAIN IN A FEW DAYS. IT USUALLY APPEARS ON VEHICLE START-UP. THE PASSENGER SEAT MAY BE OCCUPIED, OR NOT.

NHTSA ODI #11207486

Official recalls

0

No recalls in this snapshot.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

3

DP22005 · Pedestrian Alert Sounds

Opened Jan 27, 2023 · Closed Aug 7, 2023

Status: closed (inferred from source dates) · Electrical System:propulsion System

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.

PE19015 · Front Occupant Classification System Mat

Opened Oct 9, 2019 · Closed Jun 1, 2020

Status: closed (inferred from source dates) · Air Bags; Air Bags:frontal; Air Bags:sensor:occupant Classification

Preliminary Evaluation (PE) 19-015 was opened as a result of Defect Petition (DP) 19-002 which alleged that model year (MY) 2011 and 2012 Nissan Leaf were affected by the same defect addressed in an earlier recall, NHTSA Safety Recall 16V-244, but were not included in the scope of that recall.NHTSA 16V-244 involved a defect in the Occupant Classification System, a system intended to suppress deployment of the passenger's frontal air bag under certain specific conditions. Although the DP19-002 analysis determined the allegation that earlier MY Leaf vehicles should have been included in 16V-244 was not founded, the Office of Defects Investigation nonetheless granted the petition and commenced this investigation into the 2011 and 2012 Leaf since OCS failures were reportedly occurring in these vehicles. Further details on DP19-002 can be found at NHTSA.gov.On October 25, 2019, ODI sent an information request letter to Nissan North America (Nissan) requesting pertinent information on the subject 2011 and 2012 Leaf. Nissan provided its response on December 13, 2019. ODI has reviewed the information Nissan provided as well as new reports submitted to NHTSA's Vehicle Owner Questionnaire database. Based on review of all available information, and at this time, ODI has identified evidence supporting that a total of 76 subject vehicles likely experienced a failure of the subject passenger seat OCS mat. The count represents an incidence rate of about 0.4% on subject vehicles that average 8 to 9 years in service.Consistent with Nissan's explanation of how the subject OCS was intended to function, ODI's review of the reports indicates that when an OCS mat failure occurs, two different warning indicators appear on the instrument panel. The warnings provide clear and unambiguous notice to occupants that an OCS problem has been detected, and the owner's manual provides further information regarding the meaning and consequences of the detected failure, as well as advice to seek service. Additionally the OCS will store a diagnostic trouble code to aid service technician diagnosis, and the occupant warnings remain present until the underlying failure has been corrected.In its responses to ODI, Nissan also provided its assessment of the alleged defect in the subject vehicles, stating that it does not believe that an unreasonable risk to safety exists. Nissan states that its assessment of failed OCS mats recently collected from the field showed that external factors (e.g., damage from foreign objects) were responsible for the failures, rather than a design or manufacturing defect. Nissan also cited clear visual warnings and low incidence rates occurring in comparatively older vehicles as factors in its determination that a recall was not warranted. Lastly Nissan noted that most of the complaints received for this issue involved a high customer expense for the cost of repair for the OCS system, which is consistent with ODI's observations. Nissan is apparently considering a reduction in repair part cost as a means to address the customer satisfaction aspect of these complaints.Based on the analysis conducted, this investigation will be closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. NHTSA reserves the right take additional actions if warranted by future circumstances.The 20 ODI numbers cited above can be reviewed at NHTSA.gov under the following identification (ODI) numbers:11176324, 11193091, 11286687, 11290303, 11152569, 11207486, 11180021(duplicate of 11103556), 11103556, 11196006, 11287002, 11101830, 11193208, 11256669, 11172159, 11282156, 11102456, 11123812,

Additional source detail variants (3)

Air Bags:frontal

Preliminary Evaluation (PE) 19-015 was opened as a result of Defect Petition (DP) 19-002 which alleged that model year (MY) 2011 and 2012 Nissan Leaf were affected by the same defect addressed in an earlier recall, NHTSA Safety Recall 16V-244, but were not included in the scope of that recall.NHTSA 16V-244 involved a defect in the Occupant Classification System, a system intended to suppress deployment of the passenger's frontal air bag under certain specific conditions. Although the DP19-002 analysis determined the allegation that earlier MY Leaf vehicles should have been included in 16V-244 was not founded, the Office of Defects Investigation nonetheless granted the petition and commenced this investigation into the 2011 and 2012 Leaf since OCS failures were reportedly occurring in these vehicles. Further details on DP19-002 can be found at NHTSA.gov.On October 25, 2019, ODI sent an information request letter to Nissan North America (Nissan) requesting pertinent information on the subject 2011 and 2012 Leaf. Nissan provided its response on December 13, 2019. ODI has reviewed the information Nissan provided as well as new reports submitted to NHTSA's Vehicle Owner Questionnaire database. Based on review of all available information, and at this time, ODI has identified evidence supporting that a total of 76 subject vehicles likely experienced a failure of the subject passenger seat OCS mat. The count represents an incidence rate of about 0.4% on subject vehicles that average 8 to 9 years in service.Consistent with Nissan's explanation of how the subject OCS was intended to function, ODI's review of the reports indicates that when an OCS mat failure occurs, two different warning indicators appear on the instrument panel. The warnings provide clear and unambiguous notice to occupants that an OCS problem has been detected, and the owner's manual provides further information regarding the meaning and consequences of the detected failure, as well as advice to seek service. Additionally the OCS will store a diagnostic trouble code to aid service technician diagnosis, and the occupant warnings remain present until the underlying failure has been corrected.In its responses to ODI, Nissan also provided its assessment of the alleged defect in the subject vehicles, stating that it does not believe that an unreasonable risk to safety exists. Nissan states that its assessment of failed OCS mats recently collected from the field showed that external factors (e.g., damage from foreign objects) were responsible for the failures, rather than a design or manufacturing defect. Nissan also cited clear visual warnings and low incidence rates occurring in comparatively older vehicles as factors in its determination that a recall was not warranted. Lastly Nissan noted that most of the complaints received for this issue involved a high customer expense for the cost of repair for the OCS system, which is consistent with ODI's observations. Nissan is apparently considering a reduction in repair part cost as a means to address the customer satisfaction aspect of these complaints.Based on the analysis conducted, this investigation will be closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. NHTSA reserves the right take additional actions if warranted by future circumstances.The 20 ODI numbers cited above can be reviewed at NHTSA.gov under the following identification (ODI) numbers:11176324, 11193091, 11286687, 11290303, 11152569, 11207486, 11180021(duplicate of 11103556), 11103556, 11196006, 11287002, 11101830, 11193208, 11256669, 11172159, 11282156, 11102456, 11123812,

Air Bags

Preliminary Evaluation (PE) 19-015 was opened as a result of Defect Petition (DP) 19-002 which alleged that model year (MY) 2011 and 2012 Nissan Leaf were affected by the same defect addressed in an earlier recall, NHTSA Safety Recall 16V-244, but were not included in the scope of that recall.NHTSA 16V-244 involved a defect in the Occupant Classification System, a system intended to suppress deployment of the passenger's frontal air bag under certain specific conditions. Although the DP19-002 analysis determined the allegation that earlier MY Leaf vehicles should have been included in 16V-244 was not founded, the Office of Defects Investigation nonetheless granted the petition and commenced this investigation into the 2011 and 2012 Leaf since OCS failures were reportedly occurring in these vehicles. Further details on DP19-002 can be found at NHTSA.gov.On October 25, 2019, ODI sent an information request letter to Nissan North America (Nissan) requesting pertinent information on the subject 2011 and 2012 Leaf. Nissan provided its response on December 13, 2019. ODI has reviewed the information Nissan provided as well as new reports submitted to NHTSA's Vehicle Owner Questionnaire database. Based on review of all available information, and at this time, ODI has identified evidence supporting that a total of 76 subject vehicles likely experienced a failure of the subject passenger seat OCS mat. The count represents an incidence rate of about 0.4% on subject vehicles that average 8 to 9 years in service.Consistent with Nissan's explanation of how the subject OCS was intended to function, ODI's review of the reports indicates that when an OCS mat failure occurs, two different warning indicators appear on the instrument panel. The warnings provide clear and unambiguous notice to occupants that an OCS problem has been detected, and the owner's manual provides further information regarding the meaning and consequences of the detected failure, as well as advice to seek service. Additionally the OCS will store a diagnostic trouble code to aid service technician diagnosis, and the occupant warnings remain present until the underlying failure has been corrected.In its responses to ODI, Nissan also provided its assessment of the alleged defect in the subject vehicles, stating that it does not believe that an unreasonable risk to safety exists. Nissan states that its assessment of failed OCS mats recently collected from the field showed that external factors (e.g., damage from foreign objects) were responsible for the failures, rather than a design or manufacturing defect. Nissan also cited clear visual warnings and low incidence rates occurring in comparatively older vehicles as factors in its determination that a recall was not warranted. Lastly Nissan noted that most of the complaints received for this issue involved a high customer expense for the cost of repair for the OCS system, which is consistent with ODI's observations. Nissan is apparently considering a reduction in repair part cost as a means to address the customer satisfaction aspect of these complaints.Based on the analysis conducted, this investigation will be closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. NHTSA reserves the right take additional actions if warranted by future circumstances.The 20 ODI numbers cited above can be reviewed at NHTSA.gov under the following identification (ODI) numbers:11176324, 11193091, 11286687, 11290303, 11152569, 11207486, 11180021(duplicate of 11103556), 11103556, 11196006, 11287002, 11101830, 11193208, 11256669, 11172159, 11282156, 11102456, 11123812,

Air Bags:sensor:occupant Classification

Preliminary Evaluation (PE) 19-015 was opened as a result of Defect Petition (DP) 19-002 which alleged that model year (MY) 2011 and 2012 Nissan Leaf were affected by the same defect addressed in an earlier recall, NHTSA Safety Recall 16V-244, but were not included in the scope of that recall.NHTSA 16V-244 involved a defect in the Occupant Classification System, a system intended to suppress deployment of the passenger's frontal air bag under certain specific conditions. Although the DP19-002 analysis determined the allegation that earlier MY Leaf vehicles should have been included in 16V-244 was not founded, the Office of Defects Investigation nonetheless granted the petition and commenced this investigation into the 2011 and 2012 Leaf since OCS failures were reportedly occurring in these vehicles. Further details on DP19-002 can be found at NHTSA.gov.On October 25, 2019, ODI sent an information request letter to Nissan North America (Nissan) requesting pertinent information on the subject 2011 and 2012 Leaf. Nissan provided its response on December 13, 2019. ODI has reviewed the information Nissan provided as well as new reports submitted to NHTSA's Vehicle Owner Questionnaire database. Based on review of all available information, and at this time, ODI has identified evidence supporting that a total of 76 subject vehicles likely experienced a failure of the subject passenger seat OCS mat. The count represents an incidence rate of about 0.4% on subject vehicles that average 8 to 9 years in service.Consistent with Nissan's explanation of how the subject OCS was intended to function, ODI's review of the reports indicates that when an OCS mat failure occurs, two different warning indicators appear on the instrument panel. The warnings provide clear and unambiguous notice to occupants that an OCS problem has been detected, and the owner's manual provides further information regarding the meaning and consequences of the detected failure, as well as advice to seek service. Additionally the OCS will store a diagnostic trouble code to aid service technician diagnosis, and the occupant warnings remain present until the underlying failure has been corrected.In its responses to ODI, Nissan also provided its assessment of the alleged defect in the subject vehicles, stating that it does not believe that an unreasonable risk to safety exists. Nissan states that its assessment of failed OCS mats recently collected from the field showed that external factors (e.g., damage from foreign objects) were responsible for the failures, rather than a design or manufacturing defect. Nissan also cited clear visual warnings and low incidence rates occurring in comparatively older vehicles as factors in its determination that a recall was not warranted. Lastly Nissan noted that most of the complaints received for this issue involved a high customer expense for the cost of repair for the OCS system, which is consistent with ODI's observations. Nissan is apparently considering a reduction in repair part cost as a means to address the customer satisfaction aspect of these complaints.Based on the analysis conducted, this investigation will be closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. NHTSA reserves the right take additional actions if warranted by future circumstances.The 20 ODI numbers cited above can be reviewed at NHTSA.gov under the following identification (ODI) numbers:11176324, 11193091, 11286687, 11290303, 11152569, 11207486, 11180021(duplicate of 11103556), 11103556, 11196006, 11287002, 11101830, 11193208, 11256669, 11172159, 11282156, 11102456, 11123812,

DP19002 · Front Occupant Classification System Mat

Opened Aug 16, 2019 · Closed Oct 16, 2019

Status: closed (inferred from source dates) · Air Bags:sensor:occupant Classification

A defect petition (see DP19-002) was received July 23, 2019 alleging that the occupant classification system (OCS) sensor (mat) in model year (MY) 2011 Nissan Leaf vehicles is defective and affects the proper deployment of the passenger front air bag. The petitioner provided a list of potentially related NHTSA reports and noted a Nissan recall involving later MY Leaf vehicles with OCS defect. NHTSA is granting the petition and opening a preliminary evaluation in response, please see PE19-015.Since receiving the defect petition, the Office of Defects Investigation (ODI) has determined that the MY 2011 and 2012 Leaf share a common OCS design, both using the same sensor mat for passenger presence sensing. Starting in MY 2013, Leaf OCS was changed to a design using a different sensing system, one that did not use the mat present in prior model year, Nissan Leaf. While MY 2013-2016 Leaf vehicles were recalled for an OCS defect under recall 16V-244, a recall influenced by ODI investigation EA15-004, earlier MY Leaf vehicles were not included because they were not affected by the particular defect involved in that recall.ODI identified and reviewed 13 vehicle owner questionnaire (VOQ) reports in its database, one of which is a duplicate, involving MY 2011 and 2012 Leaf vehicles that allege a problem with the OCS. The VOQs indicate that an OCS warning light illuminated at which point the vehicle was diagnosed and it was determined the sensor mat was the cause of the OCS problem. Most of the VOQs also noted the high cost of repair, which apparently involves replacement of the passenger front seat, according to complainants. None of the VOQs allege a problem with the performance of the passenger air bag, an injury, or a fatality due to the failure of the OCS.During the evaluation of this petition, ODI did not request information from Nissan regarding the complaint data in its possession, and accordingly the manufacturer complaint counts shown above are marked as not applicable. ODI will request this information during the upcoming investigation.The ODI reports cited above can be reviewed at NHTSA.gov under the following identification (VOQ) numbers: 11234415, 11207486, 11196006, 11193208, 11180021, 11176324, 11172159, 11152569, 11123812, 11103556 (duplicate of 11180021), 11102456, 11101830, 11052546.