NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
585 reportsClear category filter82,000 miles · May 21, 2010
Power Train
1) THE TRANSMISSION COMPLETELY FAILED WITH NO PREVIOUS WARNING/INDICATION ON A 2005 NISSAN PATHFINDER AROUND THE 82K MILE MARK. I JUST BOUGHT THE CAR USED LESS THAN 1 MONTH AND 1K MILES PREVIOUSLY. I WAS IN THE PROCESS OF MERGING ONTO AN EXPRESSWAY AT THE TIME AND FOUND MYSELF UNABLE TO FULLY ACCELERATE. I BASICALLY COASTED I…
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1) THE TRANSMISSION COMPLETELY FAILED WITH NO PREVIOUS WARNING/INDICATION ON A 2005 NISSAN PATHFINDER AROUND THE 82K MILE MARK. I JUST BOUGHT THE CAR USED LESS THAN 1 MONTH AND 1K MILES PREVIOUSLY. I WAS IN THE PROCESS OF MERGING ONTO AN EXPRESSWAY AT THE TIME AND FOUND MYSELF UNABLE TO FULLY ACCELERATE. I BASICALLY COASTED IT OFF THE ROAD AT THIS POINT. ALTHOUGH AN ACCIDENT WAS AVERTED ONE COULD HAVE EASILY OCCURRED. 2) FROM WHAT I WAS TOLD, THE TRANSMISSION SEIZED UP ENTIRELY, AND ALL OF THE FLUIDS DRAINED OUT ENTIRELY. IT ONLY HAPPENED ONCE, HOWEVER IT CAUSED MY VEHICLE TO INSTANTLY BE "DEAD IN THE WATER". 3) THE CAR HAD TO BE TOWED TO THE DEALERSHIP TO HAVE THE U-JOINT AND THE TRANSMISSION REPLACED (NEW) FOR A ROUGHLY 7200 TOTAL PRICE TAG THAT FORTUNATELY FOR ME THE EXTENDED WARRANTY COMPANY ULTIMATELY COVERED (MINUS THE DEDUCTIBLE) AFTER MUCH BACK AND FORTH / INSPECTIONS OVER 6 WEEKS. *TR
NHTSA ODI #10331607
62,500 miles · May 21, 2010
Power Train
TRANSMISSION SHAKING AT 40-45 MPH. IS CONSTANT UNTIL TRANSMISSION CHANGES GEARS. NISSAN REPLACED THE TRANSMISSION FOR A FEE. AFTER REPLACEMENT THE NEW TRANSMISSION EXPERIENCES THE SAME SYMPTOMS. TOOK IT IN AGAIN AND THEY SAID THE RADIATOR IS LEAKING INTO THE TRANSMISSION. PATHFINDER IS IN SERVICE AND I HAVE TO PAY FOR THE P…
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TRANSMISSION SHAKING AT 40-45 MPH. IS CONSTANT UNTIL TRANSMISSION CHANGES GEARS. NISSAN REPLACED THE TRANSMISSION FOR A FEE. AFTER REPLACEMENT THE NEW TRANSMISSION EXPERIENCES THE SAME SYMPTOMS. TOOK IT IN AGAIN AND THEY SAID THE RADIATOR IS LEAKING INTO THE TRANSMISSION. PATHFINDER IS IN SERVICE AND I HAVE TO PAY FOR THE PARTS AND LABOR. READING THE COMPLAINTS THIS IS A KNOWN ISSUE AND SHOULD BE A RECALL. *TR
NHTSA ODI #10331604
84,000 miles · May 21, 2010
Engine And Engine CoolingPower TrainVehicle Speed Control
IT ALL STARTED WITH THE RADIATOR AND THE ONLY REASON I EVEN KNEW SOMETHING WAS WRONG WAS THAT MY GEARS WERE SWITCHING WEIRD. I TOOK THE CAR INTO THE DEALERSHIP, THEY TOLD ME THAT I NEEDED TO GET A NEW RADIATOR AND TRANSMISSION B/C MY RADIATOR FLUID WAS LEAKING INTO MY TRANSMISSION. THEY QUOTED ME AT $6000. I THEN TOOK MY CAR TO …
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IT ALL STARTED WITH THE RADIATOR AND THE ONLY REASON I EVEN KNEW SOMETHING WAS WRONG WAS THAT MY GEARS WERE SWITCHING WEIRD. I TOOK THE CAR INTO THE DEALERSHIP, THEY TOLD ME THAT I NEEDED TO GET A NEW RADIATOR AND TRANSMISSION B/C MY RADIATOR FLUID WAS LEAKING INTO MY TRANSMISSION. THEY QUOTED ME AT $6000. I THEN TOOK MY CAR TO GET A NEW RADIATOR AND TRANSMISSION FLUSH, IT HELPED A LITTLE. MY CAR FINALLY GAVE OUT 2 WEEKS AGO. WHILE DRIVING DOWN A SIDE STREET, THENALL OF A SUDDEN THE TRANSMISSION WOULDN'T SWITCH GEARS. I TRIED PRESSING THE GAS TO GO AND THE TRANSMISSION WOULD NOT GO. THE CAR WAS STILL RUNNING, HOWEVER I COULDN'T GRAB ANY GEARS TO GO. I GOT IT TOWED TO A TRANSMISSION SHOP, THEY TOLD ME THAT MY RADIATOR FLUID IS LEAKING INTO MY TRANSMISSION WHICH MADE MY TRANSMISSION LOCK UP. THEY TOOK MY TRANSMISSION APART TO LOOK AT PARTS AND APPARENTLY EVERYTHING IS RUSTY TOGETHER, NOT TO MENTION THE "COMPUTER" IN THE TRANSMISSION IS FRIED. YOU WOULD THINK THAT NISSAN WOULD RECOGNIZE AN ISSUE WHEN THEY SEE THAT SAME PART IS ON BACKORDER B/C I AM WAITING ON A PART. WHILE READING OTHERS WITH THE SAME ISSUE, SOME HAVE BEEN ON THE HIGHWAY AND THE TRANSMISSION WENT OUT. THIS IS DEFINITELY A SAFETY ISSUE SEEING AS IF DRIVING AT HIGH SPEEDS YOU COULD POSSIBLY GET REAR ENDED BADLY. I ALMOST GOT REARENDED WHILE ONLY GOING 45MPH. *TR
NHTSA ODI #10331573
65,000 miles · May 8, 2010
Power Train
WE OWN A 2005 NISSAN PATHFINDER. RECENTLY THE TRANSMISSION IS SLOW TO ENGAGE. IT HAS FAILED AT TIMES WHILE PULLING OUT FROM A STOP. IT PLACES THE VEHICLE OCCUPANTS IN A DANGEROUS SITUATION BECAUSE THE VEHICLE FAILS TO MOVE FORWARD AND YOU ARE PULLING OUT INTO TRAFFIC. OUR VEHICLE HAS 65000 MILES ON IT, JUST OVER THE WARRANTY LIM…
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WE OWN A 2005 NISSAN PATHFINDER. RECENTLY THE TRANSMISSION IS SLOW TO ENGAGE. IT HAS FAILED AT TIMES WHILE PULLING OUT FROM A STOP. IT PLACES THE VEHICLE OCCUPANTS IN A DANGEROUS SITUATION BECAUSE THE VEHICLE FAILS TO MOVE FORWARD AND YOU ARE PULLING OUT INTO TRAFFIC. OUR VEHICLE HAS 65000 MILES ON IT, JUST OVER THE WARRANTY LIMIT. WE RECENTLY TOOK IT TO THE LOCAL DEALERSHIP WHO DIAGNOSED THE PROBLEM TO A FAULTY RADIATOR AND TRANSMISSION. A $6000 REPAIR ESTIMATE WAS GIVEN TO US. FROM WHAT INFORMATION I HAVE FOUND BY MY OWN RESEARCH, THIS IS A COMMON OCCURRENCE THAT NISSAN IS FULLY AWARE OF BUT REFUSES TO RECALL. WE HAVE CONTACTED NISSAN CONSUMER AFFAIRS WHICH HAS BEEN A TOTAL WASTE OF TIME. THIS PROBLEM IS A SERIOUS SAFETY ISSUE IN MY OPINION. *TR
NHTSA ODI #10329425
78,000 miles · May 5, 2010
Engine And Engine CoolingPower Train
2005 NISSAN PATHFINDER WITH APPROXIMATELY 78,000 MILES DEVELOPED A VIBRATION AND SHAKING WHEN DRIVING AT A CONSTANT SPEED ON ANY ROAD, HOWEVER; WHEN DRIVING WITH OVERDRIVE OFF THE VIBRATION AND SHAKING IS NO LONGER PRESENT. WHEN VEHICLE WAS BROUGHT TO NISSAN DEALERSHIP THEY DISCOVERED THAT THE TRANSMISSION FLUID WAS MIXING WITH…
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2005 NISSAN PATHFINDER WITH APPROXIMATELY 78,000 MILES DEVELOPED A VIBRATION AND SHAKING WHEN DRIVING AT A CONSTANT SPEED ON ANY ROAD, HOWEVER; WHEN DRIVING WITH OVERDRIVE OFF THE VIBRATION AND SHAKING IS NO LONGER PRESENT. WHEN VEHICLE WAS BROUGHT TO NISSAN DEALERSHIP THEY DISCOVERED THAT THE TRANSMISSION FLUID WAS MIXING WITH THE ENGINE COOLANT AND VICE VERSA. UPON DIAGNOSIS OF THIS PROBLEM THE DEALERSHIP SAID IT WOULD BE ABOUT $6,000 TO REPLACE TRANSMISSION AND RADIATOR AND FLUIDS. LUCKILY MY EXTENDED WARRANTY COVERED THIS. I AM NOT THE FIRST PERSON TO HAVE THIS PROBLEM. HTTP://TOWNHALL-TALK.EDMUNDS.COM/DIRECT/VIEW/.F177B6C/0 HTTP://WWW.CARCOMPLAINTS.COM/NISSAN/PATHFINDER/2005/TRANSMISSION/COOLANT_LEAKED_INTO_TRANSMISSION.SHTML FOR PROOF OF OTHERS WITH THE SAME ISSUE. *TR
NHTSA ODI #10328913
78,092 miles · May 4, 2010
Engine And Engine CoolingPower Train
I HAVE TAKEN MY 2005 NISSAN PATHFINDER TO MY DEALER ,BECAUSE OF A RUMBLING SOUND;THE MECHANIC SAID THAT THE RADIATOR HAS A INTERNAL DAMAGE AND CAUSE THE ANTIFREEZE TO LEAK TO THE TRANSMISSION. I DO HAVE A EXTENDED WARRANTY THAT THE DEALER ALSO REFUSE TO TAKE BECAUSE THE RADIATOR IS NOT COVER BUT THE TRANSMISSION IT IS,BUT THEY S…
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I HAVE TAKEN MY 2005 NISSAN PATHFINDER TO MY DEALER ,BECAUSE OF A RUMBLING SOUND;THE MECHANIC SAID THAT THE RADIATOR HAS A INTERNAL DAMAGE AND CAUSE THE ANTIFREEZE TO LEAK TO THE TRANSMISSION. I DO HAVE A EXTENDED WARRANTY THAT THE DEALER ALSO REFUSE TO TAKE BECAUSE THE RADIATOR IS NOT COVER BUT THE TRANSMISSION IT IS,BUT THEY STILL WILL NOT REPAIR THE TRANSMISSION. *TR
NHTSA ODI #10328773
74,500 miles · Apr 29, 2010
Engine And Engine CoolingPower Train
2005 NISSAN PATHFINDER WITH 74,500 MILES NEEDS TRANSMISSION REPLACEMENT AND RADIATOR DUE TO LEAKING OF RADIATOR COOLANT INTO TRANSMISSION, MIXING UP WITH TRANSMISSION OIL DAMAGING TRANSMISSION. LOOKING AT CUSTOMER COMPLAINTS ONLINE, IT LOOKS AS EVERY PATHFINDER WITH ABOVE 60,000 MILES SUFFERS THE SAME PROBLEM. *TR
NHTSA ODI #10328139
80,000 miles · Apr 26, 2010
Engine And Engine CoolingPower Train
VEHICLE SHUTTERS AND SHAKES IN OVERDRIVE AT @ 40/45 MPH AND DOES NOT PROPERLY ENGAGE GEARS DURING OPERATION OF VEHICLE. THE TRANSMISSION FAILS DURING NORMAL NAVIGATION THROUGH TRAFFIC. CONFIRMED FACTORY DEFECTIVE RADIATOR LEAKED COOLANT INTO TRANSMISSION CAUSING RUINED TRANSMISSION. *TR
NHTSA ODI #10327641
75,000 miles · Apr 20, 2010
Power Train
MY 2005 NISSAN PATHFINDER HAS A DEFECT INVOLVING FLUID FROM THE RADIATOR LEAKING INTO THE TRANSMISSION. THIS IS A KNOWN DEFECT THAT POSTED ABOUT BY MANY OTHERS AND IT CAUSES MY CAR TO SHAKE VIOLENTLY BETWEEN SPEEDS OF 45-65 MPH. NEITHER NISSAN N.A. NOR THE DEALERSHIP WHERE I BOUGHT THE CAR, RT 22 NISSAN IN NJ, HAVE BEEN COOPER…
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MY 2005 NISSAN PATHFINDER HAS A DEFECT INVOLVING FLUID FROM THE RADIATOR LEAKING INTO THE TRANSMISSION. THIS IS A KNOWN DEFECT THAT POSTED ABOUT BY MANY OTHERS AND IT CAUSES MY CAR TO SHAKE VIOLENTLY BETWEEN SPEEDS OF 45-65 MPH. NEITHER NISSAN N.A. NOR THE DEALERSHIP WHERE I BOUGHT THE CAR, RT 22 NISSAN IN NJ, HAVE BEEN COOPERATIVE IN RECTIFYING OR EVEN ADDRESSING HOW TO FIX THE PROBLEM. *TR
NHTSA ODI #10326560
58,000 miles · Apr 19, 2010
Power Train
MY 2005 NISSAN PATHFINDER HAS 58,000 AND SHAKES VIOLENTLY ONCE I REACH 40 MPH AND OVER ESPECIALLY ON THE HIGHWAY. I TOOK IT TO MY LOCAL NISSAN DEALER AND IT WAS DIAGNOSED WITH THE RADIATOR LEAKING INTO THE TRANSMISSION MAKING IT SHAKE VERY VIOLENTLY. THE ESTIMATED COST TO REPAIR THIS HUGE PROBLEM IS ANYWHERE FROM $3500-$4500. I…
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MY 2005 NISSAN PATHFINDER HAS 58,000 AND SHAKES VIOLENTLY ONCE I REACH 40 MPH AND OVER ESPECIALLY ON THE HIGHWAY. I TOOK IT TO MY LOCAL NISSAN DEALER AND IT WAS DIAGNOSED WITH THE RADIATOR LEAKING INTO THE TRANSMISSION MAKING IT SHAKE VERY VIOLENTLY. THE ESTIMATED COST TO REPAIR THIS HUGE PROBLEM IS ANYWHERE FROM $3500-$4500. I CALLED NISSAN HEADQUARTERS ONLY TO HEAR THAT MY WARRANTY ALREADY EXPIRED AND THAT THEY CAN'T DO ANYTHING ABOUT THIS PROBLEM. THIS IS A SERIOUS SAFETY AND MECHANICAL PROBLEM THAT SHOULD BE RECALLED SINCE THEY HAVE TERRIBLE ENGINEERING AND COULD POSSIBLY CAUSE AN MAJOR ACCIDENT AND SOMEONE'S LIFE. *TR
NHTSA ODI #10326490
Official recalls
2Oct 28, 2010
NISSAN IS RECALLING CERTAIN MODEL YEAR 2004-2006 ARMADA, TITAN, INFINITI QX56 AND MODEL YEAR 2005-2006 FRONTIER, PATHFINDER AND XTERRA VEHICLES. THE INTELLIGENT POWER DISTRIBUTION MODULE (IPDM) ASSEMBLY CONTAINS AN ENGINE CONTROL MODULE (ECM) RELAY THAT HAS A DIODE FOR ELECTRICAL CURRENT NOISE REDUCTION. THE ECM RELAY MAY ALLOW SILICON VAPOR TO FORM AND, OVER TIME, THE SILICON EVAPORATES FROM THE DIODE MOLDING WHICH CAUSES SILICON OXIDE TO DEVELOP ON THE ECM RELAY CONTACT DUE TO ARCING.
Consequence & remedy
Consequence: THIS COULD CAUSE ENGINE STALLING INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE ECM RELAY INSIDE THE IPDM ASSEMBLY. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON DECEMBER 6, 2010. OWNERS MAY CONTACT NISSAN AT 1-800-647-7261.
Dec 29, 2008
NISSAN IS RECALLING 242,720 MY 2005-2009 PATHFINDER, FRONTIER AND XTERRA VEHICLES ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, WISCONSIN, AND THE DISTRICT OF COLUMBIA. IN THOSE AREAS OF THE COUNTRY WHICH USE HEAVY CONCENTRATIONS OF ROAD SALT IN THE WINTER, A MIXTURE OF SNOW/WATER AND SALT CAN ENTER INTO THE FRONT CRASH ZONE SENSOR (CZS) HOUSING. IF THIS OCCURS, THE CZS MAY INTERNALLY RUST RESULTING IN A SIGNAL INTERRUPTION. IF THIS HAPPENS, THE RED AIR BAG WARNING LIGHT WILL ILLUMINATE TO ALERT THE VEHICLE OPERATOR.
Consequence & remedy
Consequence: THIS ISSUE COULD RESULT IN THE NON-DEPLOYMENT OF THE DRIVER AND PASSENGER FRONT AIR BAGS IN A CRASH, INCREASING THE RISK OF PERSONAL INJURY.
Remedy: DEALERS WILL REPLACE THE FRONT CZS WITH A REDESIGNED SENSOR. THE RECALL BEGAN ON JANUARY 26, 2009. OWNERS IN THE OTHER STATES WILL RECEIVE EXTENDED WARRANTY COVERAGE FOR THE SENSOR TO 10 YEARS. THESE OWNERS WILL BE NOTIFIED OF THE WARRANTY EXTENSION BY MAIL AND WILL RECEIVE A STICKER TO PLACE IN THEIR WARRANTY BOOKLET EXPLAINING THE EXTENDED WARRANTY COVERAGE. OWNERS MAY CONTACT NISSAN AT 1-800-647-7261.
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
1DP12004 · Transmission Failures
Opened Jun 11, 2012 · Closed Oct 22, 2016
Status: closed (inferred from source dates) · Power Train; Power Train:automatic Transmission; Power Train:automatic Transmission:control Module (tcm/pcm/tecm); Power Train:automatic Transmission:cooling Unit And Lines; Power Train:automatic Transmission:torque Converter
On February 29, 2012 the National Highway Traffic Safety Administration (NHTSA) received a letter petitioning the agency to conduct a defect investigation into MY 2005-2010 Nissan Pathfinder, Frontier, and Xterra vehicles [the subject vehicles] for automatic transmission failures related to failed transmission coolers.NHTSA conducted a comprehensive review of data related to this subject. Our report, documenting this review, is available in the document file for this defect petition.It will also be published in the Federal Register. Of the 2,505 referenced complaints, 638 relate to a potential hazard (unable to maintain speed, no motive power, engine stall) and 1,867 concern customer satisfaction issues including, but not limited to, repair cost, vehicle shudder and shake, and engine overheating.Taking into account the allocation of agency resources and priorities and the likelihood that additional investigation would result in a finding that an unreasonable risk to highway safety exists, we conclude that further investigation is not warranted and deny the petition.ODI Complaint ID numbers are referenced on the next page.
Additional source detail variants (5)
Power Train:automatic Transmission:control Module (tcm/pcm/tecm)
On February 29, 2012 the National Highway Traffic Safety Administration (NHTSA) received a letter petitioning the agency to conduct a defect investigation into MY 2005-2010 Nissan Pathfinder, Frontier, and Xterra vehicles [the subject vehicles] for automatic transmission failures related to failed transmission coolers.NHTSA conducted a comprehensive review of data related to this subject. Our report, documenting this review, is available in the document file for this defect petition.It will also be published in the Federal Register. Of the 2,505 referenced complaints, 638 relate to a potential hazard (unable to maintain speed, no motive power, engine stall) and 1,867 concern customer satisfaction issues including, but not limited to, repair cost, vehicle shudder and shake, and engine overheating.Taking into account the allocation of agency resources and priorities and the likelihood that additional investigation would result in a finding that an unreasonable risk to highway safety exists, we conclude that further investigation is not warranted and deny the petition.ODI Complaint ID numbers are referenced on the next page.
Power Train:automatic Transmission:cooling Unit And Lines
On February 29, 2012 the National Highway Traffic Safety Administration (NHTSA) received a letter petitioning the agency to conduct a defect investigation into MY 2005-2010 Nissan Pathfinder, Frontier, and Xterra vehicles [the subject vehicles] for automatic transmission failures related to failed transmission coolers.NHTSA conducted a comprehensive review of data related to this subject. Our report, documenting this review, is available in the document file for this defect petition.It will also be published in the Federal Register. Of the 2,505 referenced complaints, 638 relate to a potential hazard (unable to maintain speed, no motive power, engine stall) and 1,867 concern customer satisfaction issues including, but not limited to, repair cost, vehicle shudder and shake, and engine overheating.Taking into account the allocation of agency resources and priorities and the likelihood that additional investigation would result in a finding that an unreasonable risk to highway safety exists, we conclude that further investigation is not warranted and deny the petition.ODI Complaint ID numbers are referenced on the next page.
Power Train:automatic Transmission
On February 29, 2012 the National Highway Traffic Safety Administration (NHTSA) received a letter petitioning the agency to conduct a defect investigation into MY 2005-2010 Nissan Pathfinder, Frontier, and Xterra vehicles [the subject vehicles] for automatic transmission failures related to failed transmission coolers.NHTSA conducted a comprehensive review of data related to this subject. Our report, documenting this review, is available in the document file for this defect petition.It will also be published in the Federal Register. Of the 2,505 referenced complaints, 638 relate to a potential hazard (unable to maintain speed, no motive power, engine stall) and 1,867 concern customer satisfaction issues including, but not limited to, repair cost, vehicle shudder and shake, and engine overheating.Taking into account the allocation of agency resources and priorities and the likelihood that additional investigation would result in a finding that an unreasonable risk to highway safety exists, we conclude that further investigation is not warranted and deny the petition.ODI Complaint ID numbers are referenced on the next page.
Power Train:automatic Transmission:torque Converter
On February 29, 2012 the National Highway Traffic Safety Administration (NHTSA) received a letter petitioning the agency to conduct a defect investigation into MY 2005-2010 Nissan Pathfinder, Frontier, and Xterra vehicles [the subject vehicles] for automatic transmission failures related to failed transmission coolers.NHTSA conducted a comprehensive review of data related to this subject. Our report, documenting this review, is available in the document file for this defect petition.It will also be published in the Federal Register. Of the 2,505 referenced complaints, 638 relate to a potential hazard (unable to maintain speed, no motive power, engine stall) and 1,867 concern customer satisfaction issues including, but not limited to, repair cost, vehicle shudder and shake, and engine overheating.Taking into account the allocation of agency resources and priorities and the likelihood that additional investigation would result in a finding that an unreasonable risk to highway safety exists, we conclude that further investigation is not warranted and deny the petition.ODI Complaint ID numbers are referenced on the next page.
Power Train
On February 29, 2012 the National Highway Traffic Safety Administration (NHTSA) received a letter petitioning the agency to conduct a defect investigation into MY 2005-2010 Nissan Pathfinder, Frontier, and Xterra vehicles [the subject vehicles] for automatic transmission failures related to failed transmission coolers.NHTSA conducted a comprehensive review of data related to this subject. Our report, documenting this review, is available in the document file for this defect petition.It will also be published in the Federal Register. Of the 2,505 referenced complaints, 638 relate to a potential hazard (unable to maintain speed, no motive power, engine stall) and 1,867 concern customer satisfaction issues including, but not limited to, repair cost, vehicle shudder and shake, and engine overheating.Taking into account the allocation of agency resources and priorities and the likelihood that additional investigation would result in a finding that an unreasonable risk to highway safety exists, we conclude that further investigation is not warranted and deny the petition.ODI Complaint ID numbers are referenced on the next page.