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2012 Nissan Leaf

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2012 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

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

42 reports with mileage · 15 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.

  • Service Brakes. Review the 22 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 15 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 11 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

6 crash reports0 fire reports3 injury reports

Electrical System complaints

15 reports
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Mileage unknown · Feb 21, 2026
Electrical System

High voltage battery keeps shorting out stalling while driving on interstate almost got hit by 18 wheeler a few times it's a very unsafe car to drive and I keep smelling something like an odor from the battery I've been trying to get help to do the door ship Nissan consumer affairs and seem to be getting nowhere and they're lett…

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High voltage battery keeps shorting out stalling while driving on interstate almost got hit by 18 wheeler a few times it's a very unsafe car to drive and I keep smelling something like an odor from the battery I've been trying to get help to do the door ship Nissan consumer affairs and seem to be getting nowhere and they're letting me drive a car with a high voltage battery problem that obviously has a short in it help me

NHTSA ODI #11719541

Mileage unknown · Jan 14, 2025
Electrical System

Lithium batteries Depletion

NHTSA ODI #11635786

Mileage unknown · Aug 19, 2023
Electrical SystemEngine

Car stops completely due to a defective battery should be recalled by dealer manufacturer

NHTSA ODI #11539574

Mileage unknown · Jul 13, 2022
Air BagsElectrical SystemSeats

I believe my newly purchased 2012 Nissan LEAF is suffering from the same passenger-side airbag faulty sensor problem that has been documented in NHTSA case id: 11234415. I am experiencing the same flashing warning lights when I operate the vehicle. There are no signs of damage or tampering with the passenger-side seat. I will …

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I believe my newly purchased 2012 Nissan LEAF is suffering from the same passenger-side airbag faulty sensor problem that has been documented in NHTSA case id: 11234415. I am experiencing the same flashing warning lights when I operate the vehicle. There are no signs of damage or tampering with the passenger-side seat. I will do my best to make the vehicle available for inspection upon request. I am worried that the faulty senor, if unfixed, might be shutting off the whole airbag deployment safety system. If it is doing that, Nissan MUST recall these vehicles for repair! A previous owner took the vehicle to the dealership that originally sold the car and their service center reported that the problem was a known issue. [NOTE: Date of Incident in this report refers to date of purchase of the vehicle, NOT the date that the problem began to occur. I do not have that information available to me.]

NHTSA ODI #11473743

59,000 miles · Aug 28, 2020
Electrical SystemHybrid Propulsion System

TL* THE CONTACT OWNS A 2012 NISSAN LEAF. THE CONTACT STATED THAT THE ELECTRIC BATTERY WAS UNABLE TO BE RECHARGED, MAKING THE VEHICLE INOPERABLE. THE CONTACT STATED THAT WITH THE REMAINING CHARGE IN THE BATTERY, THE VEHICLE WAS DRIVEN TO THE LOCAL DEALER CORAL SPRINGS NISSAN LOCATED 9350 WEST ATLANTIC BLVD, CORAL SPRINGS, FL 3307…

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TL* THE CONTACT OWNS A 2012 NISSAN LEAF. THE CONTACT STATED THAT THE ELECTRIC BATTERY WAS UNABLE TO BE RECHARGED, MAKING THE VEHICLE INOPERABLE. THE CONTACT STATED THAT WITH THE REMAINING CHARGE IN THE BATTERY, THE VEHICLE WAS DRIVEN TO THE LOCAL DEALER CORAL SPRINGS NISSAN LOCATED 9350 WEST ATLANTIC BLVD, CORAL SPRINGS, FL 33071, WHO DIAGNOSED THAT THE ONBOARD CHARGER WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 59,000.

NHTSA ODI #11351811

14,340 miles · Jan 22, 2020
Electrical System

TL* THE CONTACT OWNS A 2012 NISSAN LEAF. THE CONTACT STATED THAT THE BATTERY BOX WAS SEVERELY CORRODED. THE VEHICLE WAS TAKEN TO KING WINDWARD NISSAN LOCATED AT (45-568 KAMEHAMEHA HWY, KANEOHE, HI 96744, (808) 439-6901) AND WAS INFORMED THAT AN INSPECTION WAS PERFORMED AND FOUND EV BATTERY CASE AND BOLTS SHOWED SEVERE RUST AND T…

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TL* THE CONTACT OWNS A 2012 NISSAN LEAF. THE CONTACT STATED THAT THE BATTERY BOX WAS SEVERELY CORRODED. THE VEHICLE WAS TAKEN TO KING WINDWARD NISSAN LOCATED AT (45-568 KAMEHAMEHA HWY, KANEOHE, HI 96744, (808) 439-6901) AND WAS INFORMED THAT AN INSPECTION WAS PERFORMED AND FOUND EV BATTERY CASE AND BOLTS SHOWED SEVERE RUST AND THAT THE MECHANIC WAS UNABLE TO REMOVE BOLTS FROM THE CASE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND A CASE WAS FILED. THE FAILURE MILEAGE WAS APPROXIMATELY 14,340. *JS

NHTSA ODI #11301191

Mileage unknown · Oct 10, 2019
Electrical System

SINCE I BOUGHT THIS CAR IT HAS NEVER GOTTEN A FULL CHARGE. EVEN WHEN I TURN OFF ALL THE TIMERS AND CHARGE FOR 2 DAYS I CAN ONLY GO 50 MILES TOPS AND THE POWER BATTERY BAR ONLY GOES TO 5 BARS. I JUST BOUGHT THIS CAR AND I'M SCARED TO PAY MORE FOR A NEW BATTERY. AS IT MIGHT AS WELL BE PURCHASING A NEW CAR😭😥

NHTSA ODI #11267582

Mileage unknown · Jul 25, 2018
Electrical System

NISSAN LEAF. CONSUMER WRITES IN REGARDS TO A NUMBER OF CONCERNS: ELECTRONIC KEY PROBLEMS, FAILED NIGHT LIGHTS IN THE DRIVER DOOR CONTROLS AND MILEAGE ISSUES. *LD *JS

NHTSA ODI #11111618

20,000 miles · Jul 18, 2018
Electrical SystemService Brakes

THIS IS AN ALL ELECTRIC VEHICLE. WHEN APPLYING THE BRAKES AT SLOW SPEEDS THE VEHICLE PULSATES. THIS IS A PROBLEM WITH THE REGENERATIVE BRAKING SYSTEM SINCE IT DOESN'T HAPPEN WHEN THE VEHICLE IS FULLY CHARGED AND NOT REGENERATING THROUGH THE BRAKING SYSTEM.

NHTSA ODI #11112177

105 miles · Dec 12, 2014
Electrical System

MY 2012 NISSAN LEAF HAS A BATTERY CHARGE INDICATOR ON THE DASH THAT DOES NOT TRULY REFLECT HOW MUCH ACTUAL DRIVING RANGE MILEAGE IS LEFT. IN FACT, IT IS SO FAULTY THAT IT IS REFERRED TO ONLINE AS THE GOM OR GUESS-O-METER. I BELIEVE THIS IS A SAFETY HAZARD AS I HAVE NO ACCURATE WAY OF KNOWING IF I WILL BE LEFT STRANDED IN THE M…

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MY 2012 NISSAN LEAF HAS A BATTERY CHARGE INDICATOR ON THE DASH THAT DOES NOT TRULY REFLECT HOW MUCH ACTUAL DRIVING RANGE MILEAGE IS LEFT. IN FACT, IT IS SO FAULTY THAT IT IS REFERRED TO ONLINE AS THE GOM OR GUESS-O-METER. I BELIEVE THIS IS A SAFETY HAZARD AS I HAVE NO ACCURATE WAY OF KNOWING IF I WILL BE LEFT STRANDED IN THE MIDDLE OF ONCOMING TRAFFIC ON AN EXPRESSWAY, A BUSY HIGHWAY, A BACK ROAD DETOUR, OR SIMPLY MILES AWAY FROM ANY CHARGING STATION. THE FIRST TIME I REALIZED HOW SERIOUS THIS PROBLEM WAS I HAD TO CALL A TOW TRUCK TO COME AND GET ME. I LEFT MY HOME WITH 39 MILES OF CHARGE ON THE RANGE INDICATOR. IT WAS A COOL DAY SO THE CLIMATE CONTROL WAS OFF. I DROVE SEVEN MILES AND MY CAR RAN OUT OF CHARGE LEAVING ME ALONE AND FRIGHTENED IN AN UNFAMILIAR AREA. I AM A 70 YEAR OLD WIDOW. AFTER RECEIVING A TOW HOME, I CHARGED THE CAR AND THEN TOOK IT TO THE DEALER FOR A BATTERY TEST. THE DEALER TOLD ME THAT THE BATTERY WAS FINE AND THAT THE PROBLEM MUST BE MY DRIVING STYLE. SINCE THEN, I HAVE NOT TAKEN THE CAR MORE THAN A FEW MILES FROM MY HOME AT A TIME. I HAVE HAD THE BATTERY TESTED PERIODICALLY AND VOICED MY CONCERN TO NISSAN BUT TO NO AVAIL. I CONTEND THAT IF A GAS DRIVEN AUTO HAD AN INACCURATE FUEL INDICATOR THAT CAUSED VEHICLE OPERATORS TO LOSE POWER WITHOUT ANY WARNING THEN THE NTSB WOULD WANT TO KNOW ABOUT IT. I BELIEVE THAT MY NISSAN HAS A COMPARABLE PROBLEM. I HAVE OWNED THIS CAR FOR THREE YEARS NOW AND HAVE LESS THAN 4,600 MILES ON THE ODOMETER. I AM AFRAID TO TAKE IT ANYWHERE LEST I HAVE ONLY ONE THIRD OF REAL DRIVE TIME THAN IS DISPLAYED ON THE BATTERY DRIVE RANGE AND CHARGE INDICATOR. MY GUESS-O-METER IS A REAL SAFETY CONCERN FOR ME AND I WOULD APPRECIATE YOUR ADVICE AND INPUT IN THIS REGARD. *TR

NHTSA ODI #10663841

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.