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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

What owners actually said

57 reports
66,000 miles · Nov 10, 2018
Service Brakes

BRAKES GRAB AND LURCH THE CAR TO A STOP. THIS OCCURS ESPECIALLY AT LOW SPEEDS IN STOP-AND-GO TRAFFIC AND THUS IS DANGEROUS. A DRIVER FOLLOWING CLOSE BEHIND WILL BE SURPRISED BY THE VERY RAPID DECELERATION. IT HAPPENS OFTEN, ALWAYS AT SPEEDS BELOW ABOUT 10 - 15 MPH, BUT NOT EVERY TIME I BRAKE, AND IT IS UNPREDICTABLE. THE PROBLEM…

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BRAKES GRAB AND LURCH THE CAR TO A STOP. THIS OCCURS ESPECIALLY AT LOW SPEEDS IN STOP-AND-GO TRAFFIC AND THUS IS DANGEROUS. A DRIVER FOLLOWING CLOSE BEHIND WILL BE SURPRISED BY THE VERY RAPID DECELERATION. IT HAPPENS OFTEN, ALWAYS AT SPEEDS BELOW ABOUT 10 - 15 MPH, BUT NOT EVERY TIME I BRAKE, AND IT IS UNPREDICTABLE. THE PROBLEM HAS BEEN WIDELY REPORTED ON BLOGS. I HAVE INFORMED MY NISSAN SERVICE DEPARTMENT ON MANY OCCASIONS. ABOUT 6 YEARS AGO NISSAN RELEASED A FIRMWARE PATCH, WHICH WAS INSTALLED IN MY CAR. THAT DID NOT FIX THE PROBLEM. THE SERVICE DEPARTMENT ACKNOWLEDGES THE EXISTENCE OF THE PROBLEM BUT DOESN'T HAVE A SOLUTION. IT'S ALMOST CERTAINLY A SOFTWARE/FIRMWARE ISSUE.

NHTSA ODI #11150737

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

72,264 miles · Apr 26, 2017
Service BrakesCrashInjury

TL* THE CONTACT OWNED A 2012 NISSAN LEAF. WHILE DRIVING 40 MPH, THE CONTACT DEPRESSED THE BRAKE PEDAL, BUT THE VEHICLE FAILED TO SLOW DOWN AS EXPECTED. THE CONTACT FULLY DEPRESSED THE BRAKE PEDAL, BUT THE ABS FAILED TO ACTIVATE AND THE VEHICLE STILL FAILED TO SLOW DOWN AS EXPECTED. AS A RESULT, THE CONTACT CRASHED INTO THE REAR …

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TL* THE CONTACT OWNED A 2012 NISSAN LEAF. WHILE DRIVING 40 MPH, THE CONTACT DEPRESSED THE BRAKE PEDAL, BUT THE VEHICLE FAILED TO SLOW DOWN AS EXPECTED. THE CONTACT FULLY DEPRESSED THE BRAKE PEDAL, BUT THE ABS FAILED TO ACTIVATE AND THE VEHICLE STILL FAILED TO SLOW DOWN AS EXPECTED. AS A RESULT, THE CONTACT CRASHED INTO THE REAR OF ANOTHER VEHICLE. THE DRIVER'S SIDE AIR BAG DEPLOYED. THE CONTACT AND THE DRIVER OF THE OTHER VEHICLE SUFFERED MINOR BACK PAIN, BUT NO MEDICAL ATTENTION WAS REQUIRED. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO A DEALER AND THE CONTACT'S INSURANCE COMPANY CONFIRMED THAT THE VEHICLE WAS DESTROYED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE, ALTHOUGH THE CONTACT HAD PREVIOUSLY BEEN IN CONTACT WITH THEM ABOUT SIMILAR BRAKE ISSUES. THE MANUFACTURER ATTEMPTED TO REPAIR THE VEHICLE. THE CONTACT WAS ADVISED TO FILE A COMPLAINT WITH NHTSA. THE CONTACT HAD NOT SPOKEN TO A NISSAN DEALER, BUT NOTIFIED ANOTHER DEALER. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 72,264.

NHTSA ODI #10980862

14,470 miles · Mar 8, 2017
Air Bags

TL* THE CONTACT OWNS A 2012 NISSAN LEAF. WHILE STARTING THE VEHICLE IN A PARKING LOT, THE AIR BAG INDICATOR ILLUMINATED AND CONTINUED TO FLASH. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED AND THE COMPUTER SYSTEM WAS RESET. THE TECHNICIAN ALSO DIAGNOSED THAT THE SIDE AIR BAG SENSOR AND CUSHION NEEDED TO BE REPLACED. …

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TL* THE CONTACT OWNS A 2012 NISSAN LEAF. WHILE STARTING THE VEHICLE IN A PARKING LOT, THE AIR BAG INDICATOR ILLUMINATED AND CONTINUED TO FLASH. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED AND THE COMPUTER SYSTEM WAS RESET. THE TECHNICIAN ALSO DIAGNOSED THAT THE SIDE AIR BAG SENSOR AND CUSHION NEEDED TO BE REPLACED. THE FAILURE RECURRED TWO DAYS LATER. THE FAILURE WAS NOT REMEDIED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 14,470.

NHTSA ODI #10959555

25,000 miles · Jun 28, 2016
Service Brakes

I HAVE OBSERVED THE TRANSIENT GRABBY BRAKE SYNDROME IN MY LEAF DURING COLD WEATHER MONTHS IN THE PAST COUPLE YEARS. I COMPLAINED TO MY NISSAN DEALERSHIPS SERVICE DEPARTMENT A COUPLE TIMES ABOUT IT, BUT THE PROBLEM COULD NOT BE REPLICATED AT THE TIME. I ALSO NOTICED ON THE ENERGY SCREEN THAT THE REGENERATIVE BRAKING WAS CYCLING…

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I HAVE OBSERVED THE TRANSIENT GRABBY BRAKE SYNDROME IN MY LEAF DURING COLD WEATHER MONTHS IN THE PAST COUPLE YEARS. I COMPLAINED TO MY NISSAN DEALERSHIPS SERVICE DEPARTMENT A COUPLE TIMES ABOUT IT, BUT THE PROBLEM COULD NOT BE REPLICATED AT THE TIME. I ALSO NOTICED ON THE ENERGY SCREEN THAT THE REGENERATIVE BRAKING WAS CYCLING BETWEEN 10 AND 20 % COINCIDENT WITH THESE BRAKE INTENSITY PULSATIONS. IT ONLY HAPPENS WHEN I AM LIGHTLY BRAKING WITH VERY STEADY LIGHT PRESSURE ON THE BRAKE PEDAL. I SUSPECT A POSSIBLE CAUSE TO BE THE SENSOR THAT DETERMINES BRAKE PEDAL POSITION FOR THE REGEN BRAKING MAY BE DEFECTIVE OR NON-LINEAR AT SOME PORTION OF THE TRAVEL, OR THE REGEN BRAKING PROGRAM MAY HAVE A PROBLEM, OR THE HYDRAULIC BRAKING SYSTEM HAS A FAULTY COMPONENT AND THE REGEN SYSTEM IS JUST RESPONDING TO THE CYCLING BETWEEN HARD AND LIGHT BRAKING. IN ANY EVENT THIS PROBLEM MAY BE FEEDING OTHER BRAKING PROBLEMS THAT I HAVE READ ABOUT HERE, SO SHOULD BE INVESTIGATED BY NISSAN TO FIND A FIX SO AS TO PREVENT INJURIES OR FATALITIES.

NHTSA ODI #10877146

26,000 miles · Jun 22, 2016
Visibility/wiper

NHTSA MUST PASS REGULATIONS REQUIRING VEHICLE MANUFACTURERS TO DRASTICALLY IMPROVE A-PILLAR OBSCURATION ANGLE! THIS IS A SERIOUS SAFETY DEFECT OF MANY MODERN VEHICLES THAT MUST HAVE BEEN A FACTOR IN MANY ACCIDENTS, THE EXTENT TO WHICH IS PROBABLY UNQUANTIFIED & LARGELY UNKNOWN DUE TO THE FACT THAT MOST PEOPLE DO NOT EVEN KNOW A…

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NHTSA MUST PASS REGULATIONS REQUIRING VEHICLE MANUFACTURERS TO DRASTICALLY IMPROVE A-PILLAR OBSCURATION ANGLE! THIS IS A SERIOUS SAFETY DEFECT OF MANY MODERN VEHICLES THAT MUST HAVE BEEN A FACTOR IN MANY ACCIDENTS, THE EXTENT TO WHICH IS PROBABLY UNQUANTIFIED & LARGELY UNKNOWN DUE TO THE FACT THAT MOST PEOPLE DO NOT EVEN KNOW ABOUT THE PROBLEM. THE ONLY REMEDY IS FOR THE DRIVER TO MOVE HIS HEAD FROM SIDE TO SIDE EVERY TIME THE VEHICLE STARTS FROM A STOPPED POSITION TO ASCERTAIN THAT THERE ARE NO PEOPLE OR VEHICLES HIDING IN OR TRANSITING THE A-PILAR BLOCKAGE. THIS IS A WELL KNOWN PROBLEM IN THE INDUSTRY, AS PROVEN BY THE PAPER PUBLISHED BY PIPKORN BENGT OF AUTOLIV RESEARCH (SWEDEN) ENTITLED SAFETY & VISION IMPROVEMENTS BY EXPANDABLE A-PILLARS (UNDATED), WHICH IS IN THE NHTSA DATABASE/WEBSITE, WHERE A 25% IMPROVEMENT IN A-PILLAR OBSCURATION ANGLE IS DEMONSTRATED BY THE USE OF EXPERIMENTAL EXPANDABLE A-PILLARS. THE NUMBER OF PEOPLE ALREADY INJURED OR KILLED BY THIS COMMON MODERN CAR DEFECT WILL PROBABLY NEVER BE KNOWN, WITH THE UNFORTUNATE DRIVERS BEING DISBELIEVED WHEN THEY SAY THEY NEVER SAW ANYONE/THING DUE TO THE OBSCURE NATURE & KNOWLEDGE OF THIS SERIOUS PROBLEM. IN MY LAST EXPERIENCE WITH IT, THE WORST CASE SCENARIO OCCURRED (EXCEPT FOR THE FACT THAT INJURY/DEATH WAS AVOIDED). I WAS MOVING AT ABOUT 10MPH IN A PARKING LOT & AN OLDER WOMAN WAS WALKING AT ABOUT 1MPH TOWARD MY CAR FROM THE LEFT AT JUST THE RIGHT DISTANCE/SPEED. MY WIFE IN THE DRIVER'S SEAT, HAVING A BETTER LEFT VIEW, STARTED YELLING AT ME 'STOP - ARE YOU GOING TO RUN OVER THAT LADY'. I SAID 'WHAT LADY?' REALIZING IN A COUPLE SECONDS THAT IT SHE MUST BE BEHIND MY WINDOW PILLAR, I MOVED MY HEAD ABOUT 6 INCHES TO THE RIGHT, & THERE SHE WAS! SHE JUST APPEARED OUT OF THIN AIR! I NEVER SAW EVEN A TINY BIT OF HER BEFORE. SHE WAS LOOKING AT ME WITH DISBELIEF ON HER FACE. WHAT IF IT WERE A CHILD?

NHTSA ODI #10875872

50,000 miles · Mar 18, 2016
Service Brakes

THE BRAKES ON THIS CAR OFTEN BECOME GRABBY, ESPECIALLY IN EITHER COLD OR WET WEATHER. IT IS OFTEN DIFFICULT TO MODULATE THE BRAKES SMOOTHLY AND THE AMOUNT OF BRAKING ACTION IS NOT LINEAR WITH PEDAL PRESSURE. THIS WILL CHANGE DURING A SINGLE TRIP WHERE THE BRAKES WILL START OUT GRABBY BUT THEN GET BETTER. SOMETIMES THE BRAKES …

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THE BRAKES ON THIS CAR OFTEN BECOME GRABBY, ESPECIALLY IN EITHER COLD OR WET WEATHER. IT IS OFTEN DIFFICULT TO MODULATE THE BRAKES SMOOTHLY AND THE AMOUNT OF BRAKING ACTION IS NOT LINEAR WITH PEDAL PRESSURE. THIS WILL CHANGE DURING A SINGLE TRIP WHERE THE BRAKES WILL START OUT GRABBY BUT THEN GET BETTER. SOMETIMES THE BRAKES ARE NORMAL AT THE START OF A TRIP AND THEN GET GRABBY IN THE MIDDLE OF THE TRIP. I HAVE ALSO EXPERIENCED A MODULATION IN BRAKING WHEN HOLDING THE BRAKE PEDAL WITH STEADY PRESSURE AS I'M SLOWING FOR TRAFFIC. THIS MODULATION IS ABOUT ONE CYCLE PER SECOND AND FEELS LIKE I AM PUMPING THE BRAKES BUT I'M NOT. THE WORST PART OF THIS IS IT OFTEN HAPPENS DURING A COLD MORNING WITH SNOW AND ICE ON THE ROAD, SO THE BRAKES JAM ON WITH VERY LITTLE PEDAL PRESSURE CAUSING THE CAR TO SKID UNEXPECTEDLY. I CAN SOMETIMES GET THE BRAKES WORKING PROPERLY BE PRESSING HARD ON THE BRAKE PEDAL AT A STOP, WHICH SEEMS TO FREE WHATEVER IS STICKING IN THE BRAKE SYSTEM (THE PROPORTIONING VALVE PERHAPS?). I HAVE TAKEN THE CAR TO THE NISSAN DEALER SEVERAL TIMES AND THEY SAY NOTHING IS WRONG WITH THE BRAKES. I HAVE EVEN DONE THIS DURING A SNOWSTORM WHEN IT WAS PARTICULARLY BAD, AND AGAIN, THE DEALER SAYS THE BRAKES ARE FINE. THIS HAS HAPPENED SINCE THE CAR WAS NEW AND REALLY HASN'T CHANGED OVER THE 50,000 MILES I'VE DRIVEN THE CAR. NISSAN NEEDS TO TAKE THIS SERIOUSLY AND GET IT FIXED BEFORE SOMEONE GETS HURT IN A CRASH CAUSED BY GRABBY BRAKES.

NHTSA ODI #10850347

69,000 miles · Mar 3, 2016
Latches/locks/linkages

TL* THE CONTACT OWNS A 2012 NISSAN LEAF. THE CONTACT STATED THAT WHILE DRIVING AT 40 MPH, THE HOOD OF THE VEHICLE INDEPENDENTLY OPENED WITHOUT WARNING. THE CONTACT DISCOVERED THAT THE LATCH WAS FRACTURED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 69,000. U…

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TL* THE CONTACT OWNS A 2012 NISSAN LEAF. THE CONTACT STATED THAT WHILE DRIVING AT 40 MPH, THE HOOD OF THE VEHICLE INDEPENDENTLY OPENED WITHOUT WARNING. THE CONTACT DISCOVERED THAT THE LATCH WAS FRACTURED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 69,000. UPDATED 04/22/16*LJ

NHTSA ODI #10839620

5,300 miles · Sep 21, 2015
Service Brakes

THE CAR CONTINUES TO BRAKE EVEN AFTER THE BRAKE PEDAL IS NO LONGER PRESSED. THIS HAPPENS WHEN THE ABS KICKS IN. I HAD TO SLAM ON THE BRAKES AFTER SOMEONE PULLED OUT IN FRONT OF ME. I DID NOT WANT TO COMPLETELY STOP AS I COULD HAVE BEEN REAR ENDED BUT THE CAR CONTINUED TO APPLY FULL BRAKES EVEN WHEN I NO LONGER WANTED TO STOP AND…

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THE CAR CONTINUES TO BRAKE EVEN AFTER THE BRAKE PEDAL IS NO LONGER PRESSED. THIS HAPPENS WHEN THE ABS KICKS IN. I HAD TO SLAM ON THE BRAKES AFTER SOMEONE PULLED OUT IN FRONT OF ME. I DID NOT WANT TO COMPLETELY STOP AS I COULD HAVE BEEN REAR ENDED BUT THE CAR CONTINUED TO APPLY FULL BRAKES EVEN WHEN I NO LONGER WANTED TO STOP AND NO LONGER PRESSED THE BRAKE. THIS HAS HAPPENED 4 TIMES TOTAL, ALWAYS WHEN I HAD TO BRAKE VERY HARD TO AVOID A COLLISION. VERY LUCKY I HAVE NOT BEEN REAR ENDED AFTER ANY OF THESE INCIDENTS, ONE PERSON DROVE OFF THE ROAD TO AVOID ME AFTER THE CAR DECIDED TO STOP FULLY.

NHTSA ODI #10766695

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.