IllustrationTHE RADIATOR HAS TAKEN IN FLUIDS FROM THE TRANSMISSION OR? THE RADIATOR FLUID APPEARS MILKY AND LOTION LIKE CONSISTENCY FROM THE RADIATOR AND OVERFLOW TANK IT HAS BEEN SHIFTING VERY LOUD AND HARD..
2008 Nissan Xterra
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2008 Nissan Xterra do not stand out strongly from the model-year median of 78.
About this comparison →How this year compares
Owner complaints by model year
Compare all Xterra 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
170–25K
925–50K
1550–75K
1775–100K
29100–150K
19150K+
106 reports with mileage · 13 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.
- Power Train. Review the 47 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Air Bags. Review the 23 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 23 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
9 crash reports3 fire reports5 injury reports
What owners actually said
119 reportsI HAVE AN 08 XTERRA AND WHEN I WAS DRIVING IT ONE DAY IT FELT LIKE IT WAS HAVING A HARD TIME GETTING UP HILLS AND ALMOST FELT LIKE IT WOULDNT DOWNSHIFT. THEN FINALLY WHEN AT A LIGHT HAD TO REALLY GAS IT TO GET THE CAR GOING. LIMPED THE CAR TO A FAMILY MEMBERS HOUSE TO LET IT SIT UNTIL I FIGURED OUT WHAT WAS WRONG WITH IT. AFTE…
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I HAVE AN 08 XTERRA AND WHEN I WAS DRIVING IT ONE DAY IT FELT LIKE IT WAS HAVING A HARD TIME GETTING UP HILLS AND ALMOST FELT LIKE IT WOULDNT DOWNSHIFT. THEN FINALLY WHEN AT A LIGHT HAD TO REALLY GAS IT TO GET THE CAR GOING. LIMPED THE CAR TO A FAMILY MEMBERS HOUSE TO LET IT SIT UNTIL I FIGURED OUT WHAT WAS WRONG WITH IT. AFTER RESEARCH FIGURED THE CAR PUT ITSELF INTO LIMP MODE SO I DISCONNECTED THE BATTERY TO DO A FULL RESET ON THE COMPUTER. WAS ABLE TO GET IT HOME 25 MILES AFTER RESET. WE HAVE A SPARE/COMMUTER CAR SO I WAS ABLE TO LET IT SIT IN MY GARAGE FOR A FEW MONTHS WHILE I TRIED TO FIGURE OUT WHAT WAS WRONG WITH IT WHEN I HAD TIME. FINALLY AFTER NARROWING IT DOWN TO THINGS THAT I HAD NEVER DONE BEFORE, I DECIDED TO TAKE IT TO NISSAN. THEY TOLD ME THE NEXT DAY THAT IT WAS THE RADIATOR FAILURE AND PROCEEDED TO QUOTE ME $7000 FOR THE REPAIRS........OUCH ON A CAR THAT WAS NOW 11 YEARS OLD WHICH I HAD PURCHASED FROM THAT DEALERSHIP BRAND NEW. I DECIDED TO TAKE IT HOME BECAUSE IT WAS A BIG DECISION TO MAKE RIGHT AWAY. SO HERE I AM WITH A CAR THAT MISSED THE LAWSUIT AS I HAVE AN XTERRA THAT IS 11 YEARS OLD [!@#$%] NEAR 200000 MILES. I DID MY OWN MAINTENANCE, WHEN REPLACING MY HEAD GASKET I NOTICED I HAD THE NO CARBON BUILD UP ON THE HEAD, BASICALLY LOOKED LIKE A CAR THAT HAD 20000 MILES ON IT. SHAME ON NISSAN FOR NOT DOING A RECALL OR NOTIFYING OWNERS OF THIS ISSUE. I LOVE MY XTERRA BUT I'M SURE THE COST OF THE FIX IS ROUGHLY WHAT THE CAR IS WORTH. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TT
TL* THE CONTACT OWNS A 2008 NISSAN XTERRA. WHILE OPERATING THE VEHICLE, THE FUEL GAUGE DISPLAYED FALSE READINGS. THE GAUGE SHOWED THAT THE FUEL TANK HAD LESS FUEL THAN WHAT WAS ACTUALLY PRESENT. ALSO, ON SEVERAL OCCASIONS, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD WHEN IT WAS DEPRESSED AND THE VEHICLE DID NOT IMMEDIATELY STOP. …
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TL* THE CONTACT OWNS A 2008 NISSAN XTERRA. WHILE OPERATING THE VEHICLE, THE FUEL GAUGE DISPLAYED FALSE READINGS. THE GAUGE SHOWED THAT THE FUEL TANK HAD LESS FUEL THAN WHAT WAS ACTUALLY PRESENT. ALSO, ON SEVERAL OCCASIONS, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD WHEN IT WAS DEPRESSED AND THE VEHICLE DID NOT IMMEDIATELY STOP. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, BUT NO FAILURES WERE FOUND. LATER, WHILE DRIVING, THE VEHICLE STALLED AFTER DEPRESSING THE BRAKE PEDAL. THE MANUFACTURER AND DEALER WERE NOT NOTIFIED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 73,000.
COOLANT LEAKING INTO TRANSMISSION CAUSING THE TRANSMISSION TO FAIL
TL* THE CONTACT OWNS A 2008 NISSAN XTERRA. WHILE DRIVING 50 MPH, THE VEHICLE DECELERATED. THE CONTACT COASTED THE VEHICLE TO THE SHOULDER AND HAD THE VEHICLE TOWED TO HIS HOME. IN ADDITION, THE CHECK ENGINE AND 4WD WARNING INDICATORS ILLUMINATED. AN INDEPENDENT MECHANIC CAME TO THE CONTACT'S HOME AND DIAGNOSED THAT THE VEHICLE N…
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TL* THE CONTACT OWNS A 2008 NISSAN XTERRA. WHILE DRIVING 50 MPH, THE VEHICLE DECELERATED. THE CONTACT COASTED THE VEHICLE TO THE SHOULDER AND HAD THE VEHICLE TOWED TO HIS HOME. IN ADDITION, THE CHECK ENGINE AND 4WD WARNING INDICATORS ILLUMINATED. AN INDEPENDENT MECHANIC CAME TO THE CONTACT'S HOME AND DIAGNOSED THAT THE VEHICLE NEEDED A NEW TRANSMISSION AND RADIATOR. THE CONTACT INSTALLED THE RADIATOR. THE TRANSMISSION WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND DID NOT ASSIST. THE FAILURE MILEAGE WAS 133,316.
AIRBAG LIGHT IS BLINKING. I'VE RESET THE ALERT AND THEN AFTER DRIVING FOR A FEW MINUTES, IT RETURNED. DEALERSHIP WAS UNSURE IF THERE WAS A RECALL OR IF NISSAN WOULD REPLACE THE AIRBAGS. I FOUND THIS SITE AS I WAS LOOKING FOR INFORMATION. THE AIRBAG LIGHT BLINKS WHEN THE VEHICLE IS IN PARK OR IS RUNNING.
TURNS OFF. BLINKS. DOESN'T TURN ON UNLESS CAR IS RESTARTED.
WHILE DRIVING, THE VEHICLE SURGES AND SPUTTERS AND RPMS SKYROCKET AND THE VEHICLE LOSES POWER AND SHUTS DOWN. THIS HAPPENS AT VARIOUS SPEEDS ON INTERSTATE HIGHWAY, TOWN STREETS AND COUNTY ROADS. THE VEHICLE WILL ALSO LOSE POWER AND SHUT DOWN WHILE IDLING AT A STOP SIGN OR TRAFFIC LIGHT. THERE IS NO WAY TO STEER OR RESTART WHEN T…
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WHILE DRIVING, THE VEHICLE SURGES AND SPUTTERS AND RPMS SKYROCKET AND THE VEHICLE LOSES POWER AND SHUTS DOWN. THIS HAPPENS AT VARIOUS SPEEDS ON INTERSTATE HIGHWAY, TOWN STREETS AND COUNTY ROADS. THE VEHICLE WILL ALSO LOSE POWER AND SHUT DOWN WHILE IDLING AT A STOP SIGN OR TRAFFIC LIGHT. THERE IS NO WAY TO STEER OR RESTART WHEN THIS HAPPENS AND I HAVE DEPENDED ON HAZARD FLASHERS TO WARN OTHER DRIVERS OF DISABLED VEHICLE UNTIL I CAN GET ASSISTANCE TO GET VEHICLE OFF OF HIGHWAY. AFTER 20 MINUTES OF BEING DEAD, VEHICLE WILL SOMETIMES RESTART AND GO A FEW MORE MILES BEFORE SAME THING HAPPENS AGAIN. AFTER 3 WEEKS AT A DEALERSHIP AND A COST SO FAR OF $3,000, THE PROBLEM HAS NOT BEEN PINPOINTED AND FIXED. DEALERSHIP HAS CONTACTED NISSAN CUSTOMER SERVICE WHO HAS TWO OPEN CASES OF THE SAME ISSUE WITH THE SAME MODEL VEHICLE. I HAVE FOUND NUMEROUS OTHER COMPLAINTS IN ONLINE FORUMS OF THE SAME ISSUE SAME MODEL AND STILL NO FIX FOUND FOR THE ISSUE. I HAVE NOW OPENED MY OWN CASE WITH NISSAN NORTH AMERICA CUSTOMER CARE AND AM AWAITING FURTHER INVESTIGATION FROM THEM. MAJOR SAFETY HAZARD.
THE VEHICLE KEEPS STALLING AND RUNNING ROUGH WHILE DRIVING AFTER NUMEROUS REPAIRS AND SEVERAL TRIPS TO THE DEALERSHIPS THE PROBLEM CONTINUES TO PERSISTENT. THE MECHANICS SEEM NOT TO UNDERSTAND THE NATURE OF THE ISSUE ANY ASSISTANCE WOULD BE APPRECIATED
VEHICLE WAS IN MOTION (HIGHWAY DRIVING). I BEGAN TO HEAR A WHINNING SOUND AT ANY RATE OF SPEED.THE SOUND NEVER WENT AWAY. IT BECAME LOUDER DURING ACCELERATION. I CHECKED ANY RECALLS ON THE XTERRA MODELS AND FOUND OUT THAT IT HAS A FAULTY TIMMING CHAIN ISSUE. I HAD THE VEHICLE SERVICED AND INDEED, THE PROBLEM WAS THE TIMING CHAIN…
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VEHICLE WAS IN MOTION (HIGHWAY DRIVING). I BEGAN TO HEAR A WHINNING SOUND AT ANY RATE OF SPEED.THE SOUND NEVER WENT AWAY. IT BECAME LOUDER DURING ACCELERATION. I CHECKED ANY RECALLS ON THE XTERRA MODELS AND FOUND OUT THAT IT HAS A FAULTY TIMMING CHAIN ISSUE. I HAD THE VEHICLE SERVICED AND INDEED, THE PROBLEM WAS THE TIMING CHAIN.
Official recalls
623V067000 · Air Bags:frontal
Feb 10, 2023
Nissan North America, Inc. (Nissan) is recalling certain 2008-2011 Titan, Frontier, Xterra, Pathfinder, Armada, and 2008-2009 Quest vehicles. The resin emblem on the driver's air bag cover may develop cracks and detach during air bag deployment.
Consequence & remedy
Consequence: A detached emblem can become a projectile during air bag deployment, increasing the risk of injury to vehicle occupants.
Remedy: Dealers will replace the drivers airbag cover. Owner letters were mailed December 8, 2023. Owners may contact Nissan's customer service at 1-800-867-7669. Nissan's number for this recall are PC944, PC945, and PC946.
10V401000 · Equipment:electrical:navigational System(global Positioning System)
Sep 10, 2010
NISSAN IS RECALLING CERTAIN VEHICLES THAT WERE EQUIPPED WITH A GARMIN NUVI MODEL 750 NAVIGATION SYSTEM. THE BATTERIES CONTAINED IN THE AFFECTED GPS UNITS CAN OVERHEAT.
Consequence & remedy
Consequence: OVERHEATED BATTERIES COULD RESULT IN A FIRE.
Remedy: NISSAN WILL NOTIFY OWNERS AND THE REPAIRS WILL BE PERFORMED BY GARMIN TECHNICIANS BY REPLACING THE BATTERY AND INSERTING A SPACER ON TOP OF THE BATTERY FREE OF CHARGE. THE SAFETY RECALL BEGAN ON SEPTEMBER 16, 2010. OWNERS MAY CONTACT GARMIN DIRECTLY AT 1-866-957-1981 OR NISSAN AT 1-800-647-7261.
10V075000 · Fuel System, Gasoline:storage:auxillary Tank
Mar 3, 2010
NISSAN IS RECALLING CERTAIN MODEL YEAR 2006 AND MODEL YEAR 2008 FRONTIER, XTERRA AND PATHFINDER VEHICLES. THE MOLDED FUEL TANK SHELLS CAN DEFORM, CAUSING THE FUEL SENDER FLOAT ARM TO CONTACT AN EMBOSSMENT MOLDED INTO THE TANK SHELL CAUSING THE INSTRUMENT PANEL FUEL GAUGE TO SHOW THAT THE VEHICLE HAS APPROXIMATELY ONE QUARTER TANK WHEN THE FUEL TANK IS EMPTY.
Consequence & remedy
Consequence: THIS COULD CAUSE THE VEHICLE TO RUN OUT OF GAS AND STALL IN TRAFFIC, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE FUEL LEVEL SENDING UNIT INSIDE THE FUEL TANK WITH A NEW ONE THAT HAS A MODIFIED FLOAT ARM. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN ON OR BEFORE MARCH 22, 2010. OWNERS MAY CONTACT NISSAN AT 1-800-647-7261.
08V690000 · Air Bags:frontal
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.
08V045000 · Equipment:other:labels
Jan 25, 2008
NISSAN IS RECALLING 5,523 MY 2008 TITAN, FRONTIER AND XTERRA VEHICLES FOR FAILING TO COMPLY TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, 'TIRE SELECTION AND RIMS FOR MOTOR VEHICLES.' THE TIRE PLACARD LISTS AN INCORRECT VEHICLE CAPACITY WEIGHT.
Consequence & remedy
Consequence: THIS STANDARD SPECIFIES REQUIREMENTS FOR TIRE SELECTION TO PREVENT OVERLOADING.
Remedy: NISSAN WILL MAIL A CORRECT TIRE PLACARD AND INSTALLATION INSTRUCTIONS TO OWNERS OF THE AFFECTED VEHICLES. THE RECALL BEGAN ON FEBRUARY 25, 2008. OWNERS MAY CONTACT NISSAN AT 1-800-647-7261.
07V528000 · Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module
Nov 16, 2007
ON CERTAIN SPORT UTILITY VEHICLES, THE ANTILOCK BRAKE SYSTEM/VEHICLE DYNAMIC CONTROL (ABS/VDC) ACTUATOR IS DESIGNED WITH ONE BALL IN THE VALVE SECTION. SOME ABS/VDC ACTUATORS WERE MANUFACTURED WITH MORE THAN ONE BALL IN THE VALVE.
Consequence & remedy
Consequence: IN ABS/VDC ACTUATORS WITH MORE THAN ONE BALL, IT IS POSSIBLE THAT FLUID FLOW COULD BE BLOCKED AND CAUSE A REDUCTION IN BRAKE FORCE IN ONE OR BOTH FRONT WHEELS OR AFFECT OPERATION OF THE ABS AND/OR VDC. THIS COULD RESULT IN A REDUCTION IN BRAKE EFFECTIVENESS WITHOUT WARNING INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE ABS/VDC ACTUATOR WITH A NEW ONE. THE RECALL BEGAN ON DECEMBER 31, 2007. 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.