The Office of Defects Investigations (ODI) is an office within the NHTSA which investigates serious safety problems in the design, construction or performance of vehicles. The NHTSA is authorized to order manufacturers to recall and repair vehicles, if the ODI finds a safety issue. NHTSA investigations for the 2013 Nissan Sentra, both ongoing and closed, are listed below:

  1. Occupant Classification System Failure NHTSA Defect Investigation #RQ15001

    • Status:
      CLOSED
    • Date Opened: March 18, 2015
    • Date Closed: September 01, 2015
    • Recall: no recall issued

    Component(s): Air Bags
    Air Bags: Passenger Occupant Classification System
    Air Bags:Frontal
    Air Bags:Frontal:Sensor/Control Module
    Air Bags:On-Off Switch Assembly
    Air Bags:Passenger Side Frontal

    Summary: In April 2014, Nissan North America launched Safety Recall 14V-138 to address problems with the Occupant Classification System (OCS) algorithm in the following vehicles: model year (MY) 2013-2014 Nissan Altima, Pathfinder, Sentra and LEAF; MY 2013 Infiniti JX35; MY 2014 Infiniti QX60 and Q50; and MY 2013 Nissan NV 200/Taxi vehicles.According to Nissan, the OCS may misclassify adult front passenger occupants and turn off the passenger's frontal air bag for an adult occupant of sufficient weight.In March 2015, the Office of Defects Investigation (ODI) opened this Recall Query after the agency received approximately 124 complaints alleging problems with the OCS after the recall repairs and/or other OCS related repairs were made by Nissan/Infiniti dealers.The majority of the complaints alleged the passenger air bag status light stays on (i.e., indicating passenger air bag is turned off) for adult front passengers of sufficient weight.Many of the complaints stated the dealers have made multiple repairs but the problem still persists.In its June 2015 response to ODI's information request under the Recall Query, Nissan provided approximately 1,121 complaints and field reports on the recalled vehicles.These reports alleged OCS issues similar to the NHTSA reports described above.At this time, NHTSA has received a total of approximately 208 complaints (note: total of 1,271 reports shown in the table above eliminates 58 duplicative reports received by ODI and manufacturer).This Recall Query has been upgraded to an Engineering Analysis (EA15-004) to conduct a comparative assessment and further evaluate the effectiveness of the recall remedy which will include a thorough review of the countermeasures taken by Nissan and its suppliers.The ODI reports cited above can be reviewed online at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification numbers:10583283 10585264 10585349 10585379 10592434 10593399 10593501 10594329 10594614 10594755 10595161 10595645 10595946 10596128 10596459 10596952 10597037 10597452 10597518 10597719 10598537 10598869 10604755 10604834 10605188 10605251 10606565 10606828 10607038 10609649 10610519 10610991 10614467 10614609 10614745 10616905 10617008 10617507 10617903 10618099 10618202 10619059 10619563 10620719 10621840 10622214 10625808 10625981 10625998 10626006 10626023 10626335 10626458 10626732 10628355 10629382 10629460 10629606 10630441 10630502 10630990 10632251 10632588 10632934 10632997 10633714 10633810 10637994 10638591 10639040 10639147 10639324 10639473 10643046 10643843 10644203 10644333 10644341 10644690 10644891 10644985 10648834 10648997 10649414 10649772 10649874 10651360 10651564 10651924 10651982 10652024 10658665 10658844 10659484 10660294 10661195 10661358 10661541 10661795 10661855 10662901 10663033 10663338 10663860 10663978 10668054 10668768 10670538 10672807 10673088 10676471 10678478 10678997 10679512 10680748 10680769 10680975 10681656 10682235 10682902 10682993 10683391 10683689 10689672 10689809 10689981 10691626 10692137 10692558 10692625 10693168 10695312 10700614 10700960 10701008 10701011 10701014 10701018 10701023 10701027 10701031 10701032 10701035 10701045 10701055 10701064 10701074 10701146 10701196 10701228 10701237 10701254 10701301 10701306 10701326 10701367 10701370 10701384 10701415 10701453 10701526 10701558 10701656 10701670 10701946 10702003 10702667 10702798 10703032 10703657 10703766 10703813 10704196 10704988 10705530 10705919 10706621 10712543 10712568 10712575 10713335 10714316 10714330 10714536 10714980 10715132 10715945 10717336 10720918 10720971 10721331 10721746 10723424 10724568 10731167 10731868 10732012 10732065 10733877 10735438 10745948 10745982 10746399 10747660 10748077 10749091 10749110 10758979

    NHTSA: For detailed information & supporting documents, see the official NHTSA page concerning investigation #RQ15001 »

  2. Occupant Classification System Failure NHTSA Engineering Analysis #EA15004

    • Status:
      OPEN
    • Date Opened: August 31, 2015
    • Date Closed: Pending
    • Recall: possible recall

    Component(s): Air Bags
    Air Bags: Passenger Occupant Classification System
    Air Bags:Frontal
    Air Bags:Frontal:Sensor/Control Module
    Air Bags:On-Off Switch Assembly
    Air Bags:Passenger Side Frontal

    Summary: In April 2014, Nissan North America launched Safety Recall 14V-138 to address problems with the Occupant Classification System (OCS) algorithm in the following vehicles: model year (MY) 2013-2014 Nissan Altima, Pathfinder, Sentra and LEAF; MY 2013 Infiniti JX35; MY 2014 Infiniti QX60 and Q50; and MY 2013 Nissan NV 200/Taxi vehicles.According to Nissan, the OCS may misclassify adult front passenger occupants and turn off the passenger's frontal air bag for an adult occupant of sufficient weight.In March 2015, the Office of Defects Investigation (ODI) opened a Recall Query (RQ15-001) after the agency received approximately 124 complaints alleging problems with the OCS after the recall repairs and/or other OCS related repairs were made by Nissan/Infiniti dealers.The majority of the complaints alleged the passenger air bag status light stays on (i.e., indicating passenger air bag is turned off) for adult front passengers of sufficient weight.Many of the complaints stated the dealers have made multiple repairs but the problem still persists.In its June 2015 response to ODI's information request under the Recall Query, Nissan provided approximately 1,121 complaints and field reports on the recalled vehicles.These reports alleged OCS issues similar to the NHTSA reports described above.At this time, NHTSA has received a total of approximately 208 complaints (note: total of 1,271 reports shown in the table above eliminates 58 duplicative reports received by ODI and manufacturer).An Engineering Analysis has been opened to conduct a comparative assessment and further evaluate the effectiveness of the recall remedy which will include a thorough review of the countermeasures taken by Nissan and its suppliers.The ODI reports cited above can be reviewed online at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification numbers:10583283 10585264 10585349 10585379 10592434 10593399 10593501 10594329 10594614 10594755 10595161 10595645 10595946 10596128 10596459 10596952 10597037 10597452 10597518 10597719 10598537 10598869 10604755 10604834 10605188 10605251 10606565 10606828 10607038 10609649 10610519 10610991 10614467 10614609 10614745 10616905 10617008 10617507 10617903 10618099 10618202 10619059 10619563 10620719 10621840 10622214 10625808 10625981 10625998 10626006 10626023 10626335 10626458 10626732 10628355 10629382 10629460 10629606 10630441 10630502 10630990 10632251 10632588 10632934 10632997 10633714 10633810 10637994 10638591 10639040 10639147 10639324 10639473 10643046 10643843 10644203 10644333 10644341 10644690 10644891 10644985 10648834 10648997 10649414 10649772 10649874 10651360 10651564 10651924 10651982 10652024 10658665 10658844 10659484 10660294 10661195 10661358 10661541 10661795 10661855 10662901 10663033 10663338 10663860 10663978 10668054 10668768 10670538 10672807 10673088 10676471 10678478 10678997 10679512 10680748 10680769 10680975 10681656 10682235 10682902 10682993 10683391 10683689 10689672 10689809 10689981 10691626 10692137 10692558 10692625 10693168 10695312 10700614 10700960 10701008 10701011 10701014 10701018 10701023 10701027 10701031 10701032 10701035 10701045 10701055 10701064 10701074 10701146 10701196 10701228 10701237 10701254 10701301 10701306 10701326 10701367 10701370 10701384 10701415 10701453 10701526 10701558 10701656 10701670 10701946 10702003 10702667 10702798 10703032 10703657 10703766 10703813 10704196 10704988 10705530 10705919 10706621 10712543 10712568 10712575 10713335 10714316 10714330 10714536 10714980 10715132 10715945 10717336 10720918 10720971 10721331 10721746 10723424 10724568 10731167 10731868 10732012 10732065 10733877 10735438 10745948 10745982 10746399 10747660 10748077 10749091 1074911010758979

    NHTSA: For detailed information & supporting documents, see the official NHTSA page concerning investigation #EA15004 »

  3. Excessive Brake Pedal Travel NHTSA Preliminary Evaluation #PE14014

    • Status:
      CLOSED
    • Date Opened: May 20, 2014
    • Date Closed: May 13, 2015
    • Recall: no recall issued

    Component(s): Service Brakes
    Service Brakes, Hydraulic
    Service Brakes, Hydraulic:Foundation Components
    Service Brakes, Hydraulic:Foundation Components:Master Cylinder

    Summary: On May 20, 2014, ODI opened PE14-014 based on eight complaints alleging incidents of excessive brake pedal travel in model year (MY) 2013 through 2014 Nissan Sentra, Versa Sedan and Versa Note passenger cars (Figure 1) and information in Early Warning Reporting field reports indicating issues with master cylinder internal seals.In response to an information request letter sent by ODI, Nissan identified a condition with the master cylinder in early production subject vehicles that could result in a slow internal leak past one of the recuperating seals to the brake reservoir when the brake pedal is depressed very slowly or lightly (Figure 2).The subject vehicles are equipped with fixed seal master cylinders supplied by TRW.To address concerns with water hammer noise with the standard seal design, the master cylinders in the early production subject vehicles used AWH (anti-water hammer) seals.The AWH seals are sensitive to contamination from assembly plant cleanliness issues, which can produce the internal leak condition during slow or light brake applies but perform as designed with normal or emergency brake applications.TRW indicated that the risk of contamination interacting with the subject seals is greatest after the evacuation and pressure fill process used to fill the brake system during the manufacturing process (early life issue).TRW developed a new master cylinder seal design (EVO seal) that addresses the noise concern and eliminates the internal leak concern associated with contamination by providing a secondary seal (Figure 3).Nissan implemented the new master cylinder design in vehicle production on September 23, 2013.ODI's analysis shows that the master cylinder warranty claim rate is much higher in vehicles produced before the change (Figure 4).Statistical analysis showed that the condition is an early-life problem with relatively low failure rates projected through 100,000 miles and approximately 58 percent of the failures projected to occur by that mileage have already occurred (Table 1).Warranty claims are highest (78% of claims) in vehicles with less than 10,000 miles (Figure 5) and 50 percent of claims involved vehicles with less than 90 days in service (Figure 6).ODI evaluated 22 crash claims that included allegations of master cylinder failure, sinking brake pedal or pedal to the floor (Table 2).The analysis identified only three crashes in which a brake performance issue related to the master cylinder was duplicated by post-incident inspection, including one with a different problem than the seal leak issue (a broken plunger).The two crash complaints related to a possible master cylinder concern involved 1 vehicle with the AWH seal and 1 with the EVO seal.Both were minor crashes.The remaining crashes do not appear to be related to any issues with the master cylinder or other brake system fault.In the 4 crashes with Event Data Recorderinformation available, the data indicated that the brakes were applied too late to avoid the collisions.These include 2 crashes with less than a half second of braking before impact and 2 in which brake applications lasting 1.0 to 2.5 seconds resulted in high decelerations consistent with fully functioning brake systems, but too late to avoid the collision.Overall, the rates of crashes adjusted for vehicle exposure (total vehicle years in service) do not show any correlation to the high warranty rates associated with the AWH seal leak concern (Table 3 & Figure 7).Given these circumstances, further use of the agency resources in this matter does not appear to be warranted.Accordingly, this investigation is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The agency will continue to monitor complaints and other information relating to the alleged defect and take further action in the future if warranted.

    NHTSA: For detailed information & supporting documents, see the official NHTSA page concerning investigation #PE14014 »