← New search

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.

About this comparison →

How this year compares

Owner complaints by model year

Other model years Selected year
Compare all Leaf years →

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

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

What owners actually said

95 reports
15,677 miles · May 4, 2016
Service Brakes

WHEN DEPRESSING THE BRAKE PEDAL, THE VEHICLE GOES FROM A SOFT BRAKING TO A JOLTING STOP AT SPEEDS BELOW 20 MPH. THE VEHICLE JERKS SEVERLY WHEN BRAKING AND I AM ALSO VERY CONCERNED THIS WILL BE A PROBLEM ON WET ROADS AND I'M WORRIED ABOUT BEING REAR-ENDED AS IT STOPS SUDDENLY. I EXPERIENCE THIS EVERYDAY THAT I DRIVE IT. NOW, THE …

Read full complaint

WHEN DEPRESSING THE BRAKE PEDAL, THE VEHICLE GOES FROM A SOFT BRAKING TO A JOLTING STOP AT SPEEDS BELOW 20 MPH. THE VEHICLE JERKS SEVERLY WHEN BRAKING AND I AM ALSO VERY CONCERNED THIS WILL BE A PROBLEM ON WET ROADS AND I'M WORRIED ABOUT BEING REAR-ENDED AS IT STOPS SUDDENLY. I EXPERIENCE THIS EVERYDAY THAT I DRIVE IT. NOW, THE BRAKES HAVE ALSO BEEN RELEASING WHEN I'M TRYING TO STOP AT HIGHER SPEEDS, GIVING THE FEELING THAT I MAY NOT GET STOPPED IN TIME. AND THIS IS ONLY GETTING WORSE. THE CAR ESPECIALLY JOLTS WHEN CREEPING FORWARD AT A LIGHT OR INTO A PARKING SPOT. THE RELEASING, WHERE I FELT LIKE I COULD NOT STOP THE CAR, I HAVE EXPERIENCED RECENTLY ALSO HAPPENED IN THE SAME SITUATIONS. THE CAR WILL ALSO OCCASIONALLY CREEP FORWARD WHEN THE CAR WAS STOPPED, AND THE BRAKE PEDAL IS STILL DEPRESSED.

NHTSA ODI #10863130

39,100 miles · Apr 26, 2016
Air Bags

PASSENGER AIRBAG TURNED OFF. CANNOT TURN BACK ON. NOW HAVE FLASHING RED WARNING LIGHT. SEEMS RIDICULOUS TO HAVE THIS SAFETY FAILURE FAIL ON A CAR BOUGHT IN AUGUST 2011. NISSAN DEALER (ELK GROVE, CA) SAYS THEY'VE NEVER HEARD OF THIS. I DON'T BELIEVE THEM.

NHTSA ODI #10861571

38,000 miles · Apr 6, 2016
Electrical SystemUnknown Or Other

VEHICLES ELECTRIC WINDOWS MALFUNCTION. WINDOW WILL NOT OPEN OR CLOSE ON THE DRIVERS SIDE, BUT THE OTHERS WILL. MANY LEAF OWNERS ARE HAVING THE SAME ISSUES. PLEASE LOOK INTO THIS.

NHTSA ODI #10853891

21,000 miles · Jan 12, 2016
Service Brakes

BRAKES DID NOT WORK AFTER ENGAGING DRIVE FROM STATIONARY POSITION. AFTER A FEW MOMENTS, NORMAL BRAKE ACTIVITY RESUMED. BELIEVED TO BE RELATED TO DEPLETED 12 V BATTERY.

NHTSA ODI #10819773

35,500 miles · Oct 20, 2015
Service Brakes

THE BRAKES GO FROM A SOFT BRAKING TO A JOLTING STOP AT SPEEDS BELOW 20 MPH. I HAVE SMALL CHILDREN IN THE CAR, AND THEIR HEADS ARE BEING JOLTED AROUND WHEN THE CAR BRAKES THIS WAY. I AM CONCERNED THIS WILL BE A PROBLEM ON SLICK ROADS AND I'M WORRIED ABOUT BEING REAR-ENDED WHEN IT STOPS SO SUDDENLY. IT DOES THIS EVERYDAY THAT I…

Read full complaint

THE BRAKES GO FROM A SOFT BRAKING TO A JOLTING STOP AT SPEEDS BELOW 20 MPH. I HAVE SMALL CHILDREN IN THE CAR, AND THEIR HEADS ARE BEING JOLTED AROUND WHEN THE CAR BRAKES THIS WAY. I AM CONCERNED THIS WILL BE A PROBLEM ON SLICK ROADS AND I'M WORRIED ABOUT BEING REAR-ENDED WHEN IT STOPS SO SUDDENLY. IT DOES THIS EVERYDAY THAT I DRIVE IT, HOWEVER THE DEALERSHIP CAN FIND NOTHING WRONG WITH THE CAR. LATELY, THE BRAKES HAVE ALSO BEEN RELEASING WHEN I'M TRYING TO STOP, GIVING THE FEELING THAT I MAY NOT GET STOPPED IN TIME. I WOULD SAY IT FEELS LIKE THE CAR CANNOT SMOOTHLY TRANSITION BETWEEN REGULAR AND REGAIN BRAKES. I HAVE HAD IT AT THE DEALERSHIP TWICE, AND THEY PERFORMED A SOFTWARE UPDATE THAT DID NOT FIX THE PROBLEM. IT IS ONLY GETTING WORSE. THE CAR ESPECIALLY JOLTS WHEN CREEPING FORWARD AT A LIGHT OR INTO A PARKING SPOT. THE RELEASING, WHERE I FELT LIKE I COULD NOT STOP THE CAR, I HAVE EXPERIENCED RECENTLY ALSO HAPPENED IN THE SAME SITUATIONS. THE CAR WILL ALSO OCCASIONALLY CREEP FORWARD WHEN THE CAR WAS STOPPED, AND THE BRAKE PEDAL IS STILL DEPRESSED.

NHTSA ODI #10783837

12,000 miles · Oct 20, 2015
Air BagsSeats

PASSENGER SEAT AIRBAG ON/OFF SWITCH SENSOR NEEDS REPLACEMENT ACCORDING TO NISSAN DEALER. PASSENGER AIRBAG "OFF" LIGHT IS FLASHING EVEN WITH 125 POUND PASSENGER IN SEAT. NISSAN COULDN'T TELL ME WHETHER OR NOT PASSENGER AIRBAG WAS REALLY ON OR OFF. QUOTED $2400 TO REPLACE THE PASSENGER SEAT AIRBAG SWITCH AND SEAT ASSEMBLY BEC…

Read full complaint

PASSENGER SEAT AIRBAG ON/OFF SWITCH SENSOR NEEDS REPLACEMENT ACCORDING TO NISSAN DEALER. PASSENGER AIRBAG "OFF" LIGHT IS FLASHING EVEN WITH 125 POUND PASSENGER IN SEAT. NISSAN COULDN'T TELL ME WHETHER OR NOT PASSENGER AIRBAG WAS REALLY ON OR OFF. QUOTED $2400 TO REPLACE THE PASSENGER SEAT AIRBAG SWITCH AND SEAT ASSEMBLY BECAUSE IS NO LONGER UNDER WARRANTY ACCORDING TO NISSAN. THIS APPEARS TO BE EXACTLY THE PROBLEM COVERED BY 2013 LEAF RECALL FOR HARDWARE MANUFACTURING PROBLEM IN SAME SENSOR.

NHTSA ODI #10783834

40,000 miles · Oct 7, 2015
Electrical SystemPower Train

THIS IS NOT RELATED TO ANYTHING SPECIFIC THAT HAPPENED TO MY VEHICLE, BUT IT IS RELATED TO CONSUMER SAFETY AND PROTECTION. NISSAN SETTLED A CLASS-ACTION LAWSUIT AND AMENDED THEIR BATTERY REPLACEMENT/REPAIR WARRANTY SHORTLY AFTER THEY INTRODUCED THE LEAF TO THE US. VERY SOON AFTER THIS AMENDED WARRANTY WENT INTO EFFECT NISSAN SEN…

Read full complaint

THIS IS NOT RELATED TO ANYTHING SPECIFIC THAT HAPPENED TO MY VEHICLE, BUT IT IS RELATED TO CONSUMER SAFETY AND PROTECTION. NISSAN SETTLED A CLASS-ACTION LAWSUIT AND AMENDED THEIR BATTERY REPLACEMENT/REPAIR WARRANTY SHORTLY AFTER THEY INTRODUCED THE LEAF TO THE US. VERY SOON AFTER THIS AMENDED WARRANTY WENT INTO EFFECT NISSAN SENT A LETTER TO ALL LEAF OWNERS AND ASKED US TO BRING OUR CAR IN FOR A "SOFTWARE UPGRADE" THAT WOULD GIVE US A BETTER RANGE DISPLAY. I SUSPECT THAT THIS "UPGRADE" ACTUALLY KEEPS THE CAPACITY (RANGE) DISPLAY ABOVE THE THRESHOLD THAT WOULD OTHERWISE OBLIGATE NISSAN TO REPAIR/REPLACE THE BATTERY. IS YOUR AGENCY THE APPROPRIATE ON TO BRING THIS SUSPICION/COMPLAINT TO AND REQUEST AN INVESTIGATION OR SHOULD I CONTACT SOMEONE ELSE. I DO NOT HAVE EVIDENCE, BUT IT IS MORE THAN A HUNCH. BEFORE THIS ALLEGED ""FIX" MY CAR HAD LOST 2 BARS OF DISPLAY, AFTER, ONLY 1, YET IT HAS BEEN DRIVEN AND RECHARGED MUCH MORE EXTENSIVELY THAN BEFORE THE "FIX". ALSO, NISSAN HAS BEEN UNWILLING TO SHARE DATA ON THE LEAF OR ITS BATTERY, AND INSISTS THAT THEY ARE THE ONLY COMPANY WHO CAN DIAGNOSE THE BATTERY, AND THEREFORE, THE ONLY COMPANY WHO CAN DECIDE IF THE WARRANTY SHOULD BE HONORED IN ANY CASE. THIS IS TROUBLING. I WOULD APPRECIATE IT IF ANY RESOURCES COULD BE DEVOTED TO LOOKING INTO THIS SOFTWARE "FIX" - THOUGH I UNDERSTAND BUDGET AND PERSONNEL CONSTRAINTS MAY INHIBIT THIS WITHOUT EVIDENCE BEYOND MY CIRCUMSTANTIAL EXPERIENCE AND MY GUT FEELING. STILL, IT BEARS CONTACTING YOU TO ASK, AS WE HAVE SEEN HOW OTHER MAJOR AUTO MAKERS ARE WILLING TO BEND RULES AND LAWS IN ORDER TO PAD THE BOTTOM LINE. THANK YOU!! *TR

NHTSA ODI #10780631

45,000 miles · Sep 21, 2015
Electrical SystemFuel/propulsion SystemUnknown Or Other

2011 NISSAN LEAF, HAVE TAKEN IT MULTIPLE DEALERS AND DONE THE UPDATE(S) REQUIRED BY NISSAN, WHICH ACTUALLY MADE MATTERS WORSE, REGEN IS NOT WORKING LIKE HAD PRIOR TO THE P3227 UPDATE. THE BIGGEST ISSUE WITH THE NISSAN LEAF IS THE BATTERY CAPACITY AND ADVERTISED CLAIMS. CURRENTLY CHARGING 100% AND GETTING LESS THAN 60 MILES RAN…

Read full complaint

2011 NISSAN LEAF, HAVE TAKEN IT MULTIPLE DEALERS AND DONE THE UPDATE(S) REQUIRED BY NISSAN, WHICH ACTUALLY MADE MATTERS WORSE, REGEN IS NOT WORKING LIKE HAD PRIOR TO THE P3227 UPDATE. THE BIGGEST ISSUE WITH THE NISSAN LEAF IS THE BATTERY CAPACITY AND ADVERTISED CLAIMS. CURRENTLY CHARGING 100% AND GETTING LESS THAN 60 MILES RANGE. THE WARRANTY APPARENTLY AFTER TWO CLASS ACTIONS IS 5 YEARS 60,000 MILES WHICHEVER COMES FIRST. ALL ANYONE AT NISSAN OR THE DEALERS CAN SAY IS TO WAIT UNTIL WE DROP THE 9TH BAR. BUT FROM WHAT THE CUSTOMER SERVICE REP TOLD ME, I NEEDED TO DROP BELOW 70% , WHICH ACCORDING TO MY CALCULATIONS I HAVE. BUT NISSAN DOES NISSAN MATH, EACH BAR IS WEIGHTED AND THE SOFTWARE UPDATE MADE ADJUSTMENTS THAT ARE MYSTERIOUS TO MOST. NISSAN MISREPRESENTED THE LEAF AND WITH THE POOR BATTERY CHEMISTRY FAILED TO DELIVER AS PROMISED, AND NOW THESE CARS ARE PRACTICALLY BEING GIVEN AWAY. NISSAN DOES NOT COOL THE BATTERIES PROPERLY AND THERE COULD BE A DANGER THAT THEY ARE NOT DISCLOSING. THIS NEEDS TO BE INVESTIGATED FURTHER BY NHTSA/DOT

NHTSA ODI #10766707

30,000 miles · May 28, 2015
Unknown Or Other

MY CAR REQUIRES ME TO WAIT AFTER PUSHING THE START BUTTON BEFORE I CAN SHIFT INTO DRIVE OR REVERSE. IF I DO NOT WAIT, THEN THE CAR SKIPS D OR R AND SHIFTS INTO THE NEUTRAL EVEN WHEN I SELECT THE GEAR SHIFTER TO R OR D. I HAVE EXPLAINED THIS SITUATION TO MY LOCAL AUSTIN NISSAN DEALER ON 5/28/15. IT WAS EXPLAINED TO ME THAT THI…

Read full complaint

MY CAR REQUIRES ME TO WAIT AFTER PUSHING THE START BUTTON BEFORE I CAN SHIFT INTO DRIVE OR REVERSE. IF I DO NOT WAIT, THEN THE CAR SKIPS D OR R AND SHIFTS INTO THE NEUTRAL EVEN WHEN I SELECT THE GEAR SHIFTER TO R OR D. I HAVE EXPLAINED THIS SITUATION TO MY LOCAL AUSTIN NISSAN DEALER ON 5/28/15. IT WAS EXPLAINED TO ME THAT THIS IS NORMAL. I CONSIDER THIS A SERIOUS SAFETY ISSUE WHEN I START MY CAR ON AN INCLINE OR HILL AND ATTEMPT TO SHIFT TO D OR R. IF I DO NOT WAIT, THEN THE CAR ROLLS DOWNHILL IN NEUTRAL, REGARDLESS IF I SHIFT TO D OR R. THE CAR IS THEN ABLE TO LURCH FOR SEVERAL FEET DOWN AND FREE ROLL DOWNHILL BEFORE I REAPPLY MY FOOT TO THE BRAKE PEDAL. I COULD EASILY HIT ANOTHER CAR OR PEDESTRIAN. IT SEEMS UNSAFE FOR THE DRIVER TO HAVE TO REMEMBER TO WAIT FOR > 0.5 SECOND (ESTIMATE) BEFORE SHIFTING OUT OF PARK. THE ELECTRONICS SHIFTER SHOULD DEFAULT TO REMAIN IN PARK IF IT IS NOT READY TO GO INTO D OR R. GOING INTO N SEEMS LIKE A POOR ELECTRONIC DEFAULT POSITION WHEN SHIFTING FROM P TO D OR R AT THE START OF CAR. I FOUND MULTIPLE COMPLAINTS OF THIS ONLINE WHEN I SEARCHED "NISSAN LEAF SHIFT TO NEUTRAL". THANKS FOR YOUR CONSIDERATION.

NHTSA ODI #10722066

32,000 miles · Oct 15, 2014
Fuel/propulsion SystemStructureCrashInjury

I PURCHASED MY 2011 NISSAN LEAF IN SEPTEMBER OF 2012 FROM STADIUM NISSAN IN ORANGE, CALIFORNIA. I QUICKLY LEARNED THAT THIS VEHICLE WAS NOT BUILT FOR MY 69 MILE COMMUTE(4.9 MILES PER KWH), BUT WAS ABLE TO ADAPT AND MAKE IT WORK UNTIL A JOB CHANGE IN OCTOBER OF 2013. MY 10 YEAR OLD SON AND I WERE REAR ENDED SHORTLY AFTER OUR …

Read full complaint

I PURCHASED MY 2011 NISSAN LEAF IN SEPTEMBER OF 2012 FROM STADIUM NISSAN IN ORANGE, CALIFORNIA. I QUICKLY LEARNED THAT THIS VEHICLE WAS NOT BUILT FOR MY 69 MILE COMMUTE(4.9 MILES PER KWH), BUT WAS ABLE TO ADAPT AND MAKE IT WORK UNTIL A JOB CHANGE IN OCTOBER OF 2013. MY 10 YEAR OLD SON AND I WERE REAR ENDED SHORTLY AFTER OUR MOVE TO TURLOCK, CALIFORNIA. MY NISSAN LEAF HELD UP VERY WELL TO BEING REAR ENDED AT 45MPH BY A FULL SIZED CHEVY SILVERADO; AS I DROVE IT AWAY AND THE CHEVY WAS TOTALED. MY SON AND I BOTH RECEIVED CONCUSSIONS FROM THE ACCIDENT, AND UNFORTUNATELY HE IS STILL FACED WITH MEMORY LOSS. MY LEAF WAS TAKEN TO ALFRED MATTHEWS COLLISION CENTER FOR REPAIRS, AND SENT TO CENTRAL VALLEY NISSAN TO HAVE THE BATTERIES REMOVED AND REINSTALLED BEFORE AND AFTER THE BODY REPAIRS. THE REPAIRS TOOK MORE THAN 2 MONTHS TO COMPLETE, AND MY LEAF HAS NEVER BEEN THE SAME. MY LEAF WILL NO LONGER GET THE 69PLUS FREEWAY MILES THAT I DROVE BEFORE THE ACCIDENT, AND WILL NOW ONLY GET 40-50 CITY MILES PER CHARGE (3.8 MILES PER KWH). I HAVE TAKEN MY LEAF BACK TO CENTRAL VALLEY NISSAN AT LEAST 6 TIMES IN THE LAST 8 MONTHS, AND EVEN HAD ONE OF THE TWO NISSAN LEAF MECHANICS EVALUATE THE ISSUES. AAA WAS WILLING AND READY TO TOTAL MY LEAF BASED ON THIS DRASTIC PERFORMANCE ISSUE, BUT THEY WERE TOLD BY CENTRAL VALLEY NISSAN AND THE LEAF MECHANIC THAT MY LEAF IS PERFORMING WITHIN SPECIFICATIONS FOR A 2011 LEAF WITH 35,000 MILES. I FIND THIS HARD TO BELIEVE BASED ON YOUR EPA ESTIMATES OF 106 CITY / 92 HIGHWAY (I AM CURIOUS IF OTHER LEAF OWNERS KNOW THAT WHEN THEIR VEHICLE IS 3 YEARS OLD AND HAS 35,000 MILES; THEY WILL ONLY GET 40 MILES PER CHARGE). *TR

NHTSA ODI #10644960

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.