NHTSA owner reports · September 18, 2026 snapshot.
Structure complaints
33 reportsClear category filter83,000 miles · Sep 21, 2015
Structure
TOOK MY 2007 MAXIMA IN FOR ROUTINE OIL CHANGE AND MY MECHANIC GAVE ME THE BAD NEWS, SINCE HE LAST SAW IT 6 MONTHS AGO THE PASSENGER SIDE AND DRIVERS SIDE FLOOR PANS ARE RUSTED OUT .PLACED A CLAIM WITH NISSAN CONSUMER AFFAIRS IN TENNESSEE, THEY ASKED ME TO TAKE IT TO THE DEALER TO BE LOOKED AT AND THEN THEY DETERMINED THAT THEY …
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TOOK MY 2007 MAXIMA IN FOR ROUTINE OIL CHANGE AND MY MECHANIC GAVE ME THE BAD NEWS, SINCE HE LAST SAW IT 6 MONTHS AGO THE PASSENGER SIDE AND DRIVERS SIDE FLOOR PANS ARE RUSTED OUT .PLACED A CLAIM WITH NISSAN CONSUMER AFFAIRS IN TENNESSEE, THEY ASKED ME TO TAKE IT TO THE DEALER TO BE LOOKED AT AND THEN THEY DETERMINED THAT THEY WOULD DO NOTHING FOR ME, BUT INDICATED THAT THE DEALER MIGHT FIX FOR A LOT LESS THAN QUOTE I GOT FROM MY REPAIR SHOP. SINCE THEN THE DEALER HAS INDICATED THAT THEY NEED TO TALK TO NISSAN CONSUMER AFFAIRS. I HAVE CALLED BOTH PARTIES SEVERAL TIMES AND AN DEFINITELY GETTING THE RUN AROUND. BOTH NISSAN AND THE DEALER ARE VERY AWARE OF THIS PROBLEMS AS THEY HAVE BEEN MANY INCIDENTS OF RUST . I HAVE OWNED NOTHING BU NISSAN'S FOR 20 YEARS, ONE I HAD FOR OVER 12 YEARS WITH NO RUST PROBLEMS ( IT WAS A 1995) I TRADED IT IN FOR THIS CAR . I GARAGE MY CAR AND HAVE IT WASHED REGULARLY. IT IS IN GREAT SHAPE. I AM SO DISAPPOINTED IN NISSAN THAT I DON'T THINK I WILL EVER OWN ANOTHER ONE.
NHTSA ODI #10766682
129,000 miles · Sep 21, 2015
Service BrakesStructureWheels
I TOOK MY CAR IN TO THE DEALERSHIP DUE TO ALL OF MY WARNING LIGHTS COMING ON. UPON PUTTING IT ON THE LIFT, THEY SHOWED ME WHERE THE UNDERSIDE WAS SIGNIFICANT RUST THAT CAUSED THE TIRE & BRAKE SENSORS TO FALL OFF THE STRUTS. ADDITIONALLY, THE FLOOR PANS WERE COMPLETELY RUSTED OUT WITH HOLES, WHICH CAN CAUSE MY FEET TO CRASH THR…
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I TOOK MY CAR IN TO THE DEALERSHIP DUE TO ALL OF MY WARNING LIGHTS COMING ON. UPON PUTTING IT ON THE LIFT, THEY SHOWED ME WHERE THE UNDERSIDE WAS SIGNIFICANT RUST THAT CAUSED THE TIRE & BRAKE SENSORS TO FALL OFF THE STRUTS. ADDITIONALLY, THE FLOOR PANS WERE COMPLETELY RUSTED OUT WITH HOLES, WHICH CAN CAUSE MY FEET TO CRASH THROUGH THE FLOORBOARDS CAUSING AN ACCIDENT OR CARBON DIOXIDE POISONING. I HAVE RESEARCHED THE MANY PROBLEMS REPORTED ONLINE REGARDING RUSTED FLOOR PANS AND BELIEVE THE NHTSA SHOULD FORCE NISSAN TO PROVIDE A RECALL TO GET THESE ITEMS FIXED. I UNDERSTAND RUST IS NOT A STANDARD REASON FOR NHTSA TO BE INVOLVED, BUT WILL IT TAKE MY DEATH TO HAVE YOU REGULATE & RESOLVE THIS ISSUE?
NHTSA ODI #10766510
98,240 miles · Jun 9, 2015
Air BagsStructure
AIR BAG WARNING LIGHT TURNS ON EVEN AFTER CLEARING SOLUSPRO SCANNER CODE, "B1049 DRIVER AIR BAG MODULE (OPEN)". I AM CONCERNED MY DRIVER'S SIDE AIR BAG WILL SPONTANEOUSLY RELEASE OR NOT RELEASE AT ALL WHEN NEEDED. IF SOMETHING HAPPENS TO THE DRIVER, ALL PASSENGERS ARE AT RISK OF FATAL INJURY. I CONTACTED NISSAN NORTH AMERICA, AN…
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AIR BAG WARNING LIGHT TURNS ON EVEN AFTER CLEARING SOLUSPRO SCANNER CODE, "B1049 DRIVER AIR BAG MODULE (OPEN)". I AM CONCERNED MY DRIVER'S SIDE AIR BAG WILL SPONTANEOUSLY RELEASE OR NOT RELEASE AT ALL WHEN NEEDED. IF SOMETHING HAPPENS TO THE DRIVER, ALL PASSENGERS ARE AT RISK OF FATAL INJURY. I CONTACTED NISSAN NORTH AMERICA, AND WAS TOLD THE DIAGNOSTIC HAD TO BE RUN BY A DEALER MECHANIC BEFORE THEY CAN DO ANYTHING. THEY ALSO INFORMED ME THAT THERE IS NO CAMPAIGN CURRENTLY OPEN FOR MY ISSUES. THE BODY ISSUE HAS TO DO WITH POOR PAINT OR CLEAR COAT QUALITY COMMON TO NISSAN VEHICLES. WHILE THE REST OF MY CAR LOOKS FINE, THE HOOD AND THE ROOF LOOK HORRIBLE. LIKE SOMEONE TOOK SANDING PAPER TO THE CLEAR COAT AND THE COLOR IS FADED AND GETTING WORSE AS TIME PASSES. I AM VERY DISAPPOINTED IN NISSAN FOR THIS COSMETIC DETAIL. I TRADED IN MY 2005 NISSAN MAXIMA BECAUSE THE ROOF LINER SAGGED AS SOON AS I BEGAN DRIVING WITH THE SUNROOF OPEN. I HOPE THAT THE RESULTS OF THE AIR BAG ISSUE ARE AS MINOR AS THE COSMETIC ISSUES, OTHERWISE NISSAN IS GOING TO HAVE SOME SERIOUS PROBLEMS ON THERE HANDS.
NHTSA ODI #10724361
106,000 miles · May 12, 2015
StructureUnknown Or OtherVehicle Speed Control
WHILE DRIVING ON THE INTERSTATE I FELT AN EXPLOSION AND NEARLY LOST CONTROL OF MY BLOOD PRESSURE, AND I SUFFER FROM HYPER-TENSION. THE MOON ROOF EXPLODED AND I HAD NO IDEA WHAT HAD HAPPENED. I LOOKED AROUND TO SEE IF A GUN HAD BEEN POINTED AT ME BECAUSE THE SOUND WAS SIMILAR AND THE IMPACT TO THE CAR FELT AS THOUGH IT HAD BEEN …
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WHILE DRIVING ON THE INTERSTATE I FELT AN EXPLOSION AND NEARLY LOST CONTROL OF MY BLOOD PRESSURE, AND I SUFFER FROM HYPER-TENSION. THE MOON ROOF EXPLODED AND I HAD NO IDEA WHAT HAD HAPPENED. I LOOKED AROUND TO SEE IF A GUN HAD BEEN POINTED AT ME BECAUSE THE SOUND WAS SIMILAR AND THE IMPACT TO THE CAR FELT AS THOUGH IT HAD BEEN HIT BY AN OBJECT. THE COVER OVER THE MOON ROOF WAS CLOSED SO THAT PREVENTED ANY GLASS FROM ENTERING AND CUTTING ME. I PULLED OFF AT THE NEXT EXIT TO FIND A GAPPING HOLE, SHATTERED GLASS ON THE ROOF AND MY HEART BEATING RAPIDLY. ONCE I GOT HOME I TAPED THE ROOF AND BY THE TIME I GOT TO THE REPAIR SHOP THE NEXT DAY THE PRESSURE CAUSED THE ROOF TO REOPEN AND CONTINUE TO BREAK. I CONTACTED NISSAN TO SEE IF THIS VEHICLE WAS UNDER RECALL AND THEY SAID NO. THE COST WAS MY EXPENSE. NOW I DO NOT OPEN THE SHADE AT ALL FOR FEAR OF THIS HAPPENING AGAIN RESULTING IN INJURY. I LIVE IN A VERY HOT AND HUMID AND RAINY CLIMATE AND WHEN THIS OCCURED THE TEMPERATURE WAS IN THE 70'S, AND THE TIME OF DAY WAS APPROX 6:45PM. I ASKED THE GLASS COMPANY HAD THEY HAD ANY CUSTOMERS IN WITH THIS PROBLEM AND THEY AFFIRMED. THE MOON ROOF GLASS WAS ORDERED AND SHIPPED DIRECTLY TO THE GLASS COMPANY AND MY CAR WAS OUT OF COMMISSION FOR A FEW DAYS. THE MOON ROOF DOES NOT OPEN AT ALL, IT WAS DESIGNED THAT WAY. IF A SAFETY NOTICE HAD BEEN ATTACHED I MORE THAN LIKELY WOULD NOT HAVE PURCHASED THIS TYPE OF VEHICLE.
NHTSA ODI #10715989
126,000 miles · May 5, 2015
Structure
DRIVER'S SIDE AND PASSENGER'S SIDE FLOOR PANS RUSTED OUT. REST OF THE UNDERCARRIAGE IS FINE. UNDERSTAND FROM INTERNET SEARCH THAT THIS HAS OCCURRED IN OTHER NISSAN VEHICLES SINCE AT LEAST THE 2004 MODELS. DEALER INDICATES THAT THIS IS A PROBLEM "ABOUT WHICH THEY HAVE HEARD" BUT THERE ARE NO RECALLS OR SERVICE BULLETINS ISSUED…
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DRIVER'S SIDE AND PASSENGER'S SIDE FLOOR PANS RUSTED OUT. REST OF THE UNDERCARRIAGE IS FINE. UNDERSTAND FROM INTERNET SEARCH THAT THIS HAS OCCURRED IN OTHER NISSAN VEHICLES SINCE AT LEAST THE 2004 MODELS. DEALER INDICATES THAT THIS IS A PROBLEM "ABOUT WHICH THEY HAVE HEARD" BUT THERE ARE NO RECALLS OR SERVICE BULLETINS ISSUED BY NISSAN. *TR
NHTSA ODI #10714733
100,000 miles · May 1, 2015
Structure
TOOK CAR TO THE GARAGE FOR INSPECTION. IT DID NOT PASS DUE TO RUST UNDER DRIVER'S AND PASSENGER'S SIDE FLOOR BOARDS. THEY TOLD ME THE REST OF THE CAR WAS IN PERFECT CONDITION AND THAT THEY BELIEVED IT MIGHT BE A MANUFACTURING DEFECT. THE AMOUNT OF RUST IS FAR BEYOND WHAT AN 8 YEAR OLD CAR SHOULD HAVE. CONTACTED NISSAN BUT TH…
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TOOK CAR TO THE GARAGE FOR INSPECTION. IT DID NOT PASS DUE TO RUST UNDER DRIVER'S AND PASSENGER'S SIDE FLOOR BOARDS. THEY TOLD ME THE REST OF THE CAR WAS IN PERFECT CONDITION AND THAT THEY BELIEVED IT MIGHT BE A MANUFACTURING DEFECT. THE AMOUNT OF RUST IS FAR BEYOND WHAT AN 8 YEAR OLD CAR SHOULD HAVE. CONTACTED NISSAN BUT THEY TOLD ME THE RUST WARRANTY IS ONLY COVERED FOR 3 YEARS/36,000 MILES AND IT IS TOO FAR OUT OF WARRANTY FOR THEM TO DO ANYTHING ABOUT IT. *TR
NHTSA ODI #10714019
80,000 miles · Apr 30, 2015
Structure
TL* THE CONTACT OWNS A 2007 NISSAN MAXIMA. THE CONTACT STATED THAT THE FRONT PASSENGER SIDE FLOORBOARD WAS ROTTED. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN DIAGNOSED THAT THE FLOORBOARD NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 80,000.
NHTSA ODI #10713847
73,500 miles · Apr 7, 2015
Structure
WHEN I BROUGHT MY CAR TO THE MECHANIC TO FIX THE BRAKES, HE DID NOTICE THAT THE FLOOR PANEL HAD A HUGE HOLE DUE RUST. THIS WAS IN THE DRIVER AND PASSENGER'S SIDE. HIS COMMENT WAS: "THE AMOUNT OF RUST ON THE FLOOR PANEL IS SUCH THAT IT COULD HAVE AN IMPACT IN THE SAFETY OF THE VEHICLE. THIS IS A SAFETY ISSUE DUE THE FACT THA…
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WHEN I BROUGHT MY CAR TO THE MECHANIC TO FIX THE BRAKES, HE DID NOTICE THAT THE FLOOR PANEL HAD A HUGE HOLE DUE RUST. THIS WAS IN THE DRIVER AND PASSENGER'S SIDE. HIS COMMENT WAS: "THE AMOUNT OF RUST ON THE FLOOR PANEL IS SUCH THAT IT COULD HAVE AN IMPACT IN THE SAFETY OF THE VEHICLE. THIS IS A SAFETY ISSUE DUE THE FACT THAT THE RUST HAS COMPROMISED THE STRUCTURE OF THE VEHICLE." THE MECHANIC AND MYSELF CAME TO THE CONCLUSION THAT THE RUST IS BECAUSE OF THE POOR QUALITY OF THE METAL PART ON THE METAL PANEL. A 7 YEAR OLD CAR SHOULDN'T HAVE THIS KIND OF PROBLEM. I DROVE A NISSAN MAXIMA ALL THE WAY TO 250,000 MILES AND THE FLOOR PANEL DIDN'T SHOW ANY SIGN OF RUST. WHAT IS THE PROPER STEPS I MUST TAKE SO TO REQUEST FROM NISSAN MAXIMA TO COVER THE REPAIR? SHOULD THIS CAR'S CONDITION HAVE A RECALL MANDATE FROM THE NHTSA? YOUR HELP WITH THIS MATTER WILL BE APPRECIATED. *TR
NHTSA ODI #10704291
142,000 miles · Apr 6, 2015
Structure
FLOOR PANS UNDER BOTH THE DRIVERS AND FRONT PASSENGER SEAT ARE COMPLETELY RUSTED OUT. *TR
NHTSA ODI #10703879
75,500 miles · Jan 30, 2015
Structure
I TOOK MY CAR IN TO MY MECHANIC AT CITY AUTO REPAIR TO BALANCE MY TIRES AND MY MECHANIC FOUND THAT UNDERNEATH MY CAR ON MY DRIVER'S SIDE IS RUSTING OUT AND HAS A HOLE IN IT. THERE IS APPARENTLY WATER COMING IN THE CAR FROM SOMEWHERE AND RUSTING OUT THE FLOOR PAN ON THE DRIVER'S SIDE OF THE CAR. I GOOGLED THIS PROBLEM AND THERE…
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I TOOK MY CAR IN TO MY MECHANIC AT CITY AUTO REPAIR TO BALANCE MY TIRES AND MY MECHANIC FOUND THAT UNDERNEATH MY CAR ON MY DRIVER'S SIDE IS RUSTING OUT AND HAS A HOLE IN IT. THERE IS APPARENTLY WATER COMING IN THE CAR FROM SOMEWHERE AND RUSTING OUT THE FLOOR PAN ON THE DRIVER'S SIDE OF THE CAR. I GOOGLED THIS PROBLEM AND THERE ARE MANY COMPLAINTS ABOUT THIS PROBLEM WITH MAXIMA'S AND ALTIMA'S. NISSAN JUST DID A RECALL FOR THIS EXACT PROBLEM, BUT ONLY RECALLED SUV'S. IT'S A FIRE HAZARD BECAUSE THE ELECTRICAL HARNESS CAN SHORT OUT AND CAUSE A FIRE. I WOULD ASK THAT ANY AND ALL NISSAN CARS (NOT JUST SUV'S) BE RECALLED FOR THIS PROBLEM. I ALSO CONTACTED NISSAN ABOUT THIS PROBLEM AND THEY REFUSED TO TAKE RESPONSIBILITY FOR THIS PROBLEM AND REFUSED TO PAY FOR REPAIR OF THE PROBLEM. *TR
NHTSA ODI #10679886
NHTSA investigations
1PE08045 · Transmission Hose Leak
Opened Jul 23, 2008 · Closed Oct 24, 2008
Status: closed (inferred from source dates) · Power Train:automatic Transmission; Power Train:automatic Transmission:cooling Unit And Lines
THIS PE WAS OPENED FOR MODEL YEAR (MY) 2008 NISSAN MAXIMA VEHICLES BASED ON EARLY WARNING DATA THAT THE AUTOMATIC TRANSMISSION COOLER HOSE MAY HAVE PINHOLES AND/OR CRACKS RESULTING IN A TRANSMISSION FLUID LEAK.THE LEAKED FLUID CAN CONTACT THE EXHAUST SYSTEM AND IGNITE.NISSAN HAS SHOWN THAT THE ROOT CAUSE OF THE PINHOLES AND/OR CRACKS IN THE HOSE IS EXCESSIVE STRESS DURING THE MANUFACTURE FORMING PROCESS RESULTING IN HOSE DEFORMATION AT LOADING ONTO A MANDREL, OR DAMAGE DURING UN-LOADING.REGARDING LOADING STRESS, NISSAN STATES, WHEN EXCESSIVE STRESS IS APPLIED WHILE LOADING THE HOSE ONTO THE MANDREL, HOSE DEFORMATION (WHICH LOOKS LIKE A BULGE) CAN OCCUR AROUND THE BENDING AREA.A CRACK WILL START TO FORM ON THE INSIDE OF THE HOSE AT THE AREA OF DEFORMATION.REGARDING UNLOADING STRESS, NISSAN STATES, AFTER THE CURING PROCESS, IN SOME INSTANCES THE HOSE STUCK TO THE MANDREL TIGHTLY AND THE OPERATOR HAD TO APPLY A SIGNIFICANT AMOUNT OF FORCE TO PULL THE HOSE FROM THE MANDREL.IF THIS OPERATION WAS PERFORMED ROUGHLY, THE INTERIOR OF THE HOSE COULD BE DAMAGED BY THE MANDREL EDGE. NISSAN ALSO STATES, BECAUSE OF THE WAY THE HOSES RECEIVED INTERNAL DAMAGE, A DAMAGED HOSE WAS PRODUCED AS A RARE, RANDOM EVENT RATHER THAN SYSTEMATICALLY.THE TRANSMISSION HOSE SUPPLIER, COOPER STANDARD AUTOMOTIVE, IMPLEMENTED PROCESS IMPROVEMENTS THAT LIMIT EXCESSIVE STRESS ON THE HOSE DURING MANUFACTURE. NISSAN HAS SHOWN THAT THIS TRANSMISSION COOLER HOSE WAS ASSEMBLED ON MY 2007 AND MY 2008 MAXIMA VEHICLES.NISSAN REDESIGNED THE TRANSMISSION COOLER HOSE ON MY 2009 MAXIMA, AND THE HOSE IS MANUFACTURED BY A NEW SUPPLIER.NISSAN HAS ALSO SHOWN THAT THE LEAKS MOSTLY OCCUR WITHIN THE FIRST 2000 MILES OF SERVICE WITH A SEVERE DROP IN INCIDENTS BEYOND 2000 MILES OF SERVICE.MOST LEAKS HAVE ALREADY OCCURRED, AND THE ONE FIRE WAS MINOR. A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
Additional source detail variants (2)
Power Train:automatic Transmission:cooling Unit And Lines
THIS PE WAS OPENED FOR MODEL YEAR (MY) 2008 NISSAN MAXIMA VEHICLES BASED ON EARLY WARNING DATA THAT THE AUTOMATIC TRANSMISSION COOLER HOSE MAY HAVE PINHOLES AND/OR CRACKS RESULTING IN A TRANSMISSION FLUID LEAK.THE LEAKED FLUID CAN CONTACT THE EXHAUST SYSTEM AND IGNITE.NISSAN HAS SHOWN THAT THE ROOT CAUSE OF THE PINHOLES AND/OR CRACKS IN THE HOSE IS EXCESSIVE STRESS DURING THE MANUFACTURE FORMING PROCESS RESULTING IN HOSE DEFORMATION AT LOADING ONTO A MANDREL, OR DAMAGE DURING UN-LOADING.REGARDING LOADING STRESS, NISSAN STATES, WHEN EXCESSIVE STRESS IS APPLIED WHILE LOADING THE HOSE ONTO THE MANDREL, HOSE DEFORMATION (WHICH LOOKS LIKE A BULGE) CAN OCCUR AROUND THE BENDING AREA.A CRACK WILL START TO FORM ON THE INSIDE OF THE HOSE AT THE AREA OF DEFORMATION.REGARDING UNLOADING STRESS, NISSAN STATES, AFTER THE CURING PROCESS, IN SOME INSTANCES THE HOSE STUCK TO THE MANDREL TIGHTLY AND THE OPERATOR HAD TO APPLY A SIGNIFICANT AMOUNT OF FORCE TO PULL THE HOSE FROM THE MANDREL.IF THIS OPERATION WAS PERFORMED ROUGHLY, THE INTERIOR OF THE HOSE COULD BE DAMAGED BY THE MANDREL EDGE. NISSAN ALSO STATES, BECAUSE OF THE WAY THE HOSES RECEIVED INTERNAL DAMAGE, A DAMAGED HOSE WAS PRODUCED AS A RARE, RANDOM EVENT RATHER THAN SYSTEMATICALLY.THE TRANSMISSION HOSE SUPPLIER, COOPER STANDARD AUTOMOTIVE, IMPLEMENTED PROCESS IMPROVEMENTS THAT LIMIT EXCESSIVE STRESS ON THE HOSE DURING MANUFACTURE. NISSAN HAS SHOWN THAT THIS TRANSMISSION COOLER HOSE WAS ASSEMBLED ON MY 2007 AND MY 2008 MAXIMA VEHICLES.NISSAN REDESIGNED THE TRANSMISSION COOLER HOSE ON MY 2009 MAXIMA, AND THE HOSE IS MANUFACTURED BY A NEW SUPPLIER.NISSAN HAS ALSO SHOWN THAT THE LEAKS MOSTLY OCCUR WITHIN THE FIRST 2000 MILES OF SERVICE WITH A SEVERE DROP IN INCIDENTS BEYOND 2000 MILES OF SERVICE.MOST LEAKS HAVE ALREADY OCCURRED, AND THE ONE FIRE WAS MINOR. A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
Power Train:automatic Transmission
THIS PE WAS OPENED FOR MODEL YEAR (MY) 2008 NISSAN MAXIMA VEHICLES BASED ON EARLY WARNING DATA THAT THE AUTOMATIC TRANSMISSION COOLER HOSE MAY HAVE PINHOLES AND/OR CRACKS RESULTING IN A TRANSMISSION FLUID LEAK.THE LEAKED FLUID CAN CONTACT THE EXHAUST SYSTEM AND IGNITE.NISSAN HAS SHOWN THAT THE ROOT CAUSE OF THE PINHOLES AND/OR CRACKS IN THE HOSE IS EXCESSIVE STRESS DURING THE MANUFACTURE FORMING PROCESS RESULTING IN HOSE DEFORMATION AT LOADING ONTO A MANDREL, OR DAMAGE DURING UN-LOADING.REGARDING LOADING STRESS, NISSAN STATES, WHEN EXCESSIVE STRESS IS APPLIED WHILE LOADING THE HOSE ONTO THE MANDREL, HOSE DEFORMATION (WHICH LOOKS LIKE A BULGE) CAN OCCUR AROUND THE BENDING AREA.A CRACK WILL START TO FORM ON THE INSIDE OF THE HOSE AT THE AREA OF DEFORMATION.REGARDING UNLOADING STRESS, NISSAN STATES, AFTER THE CURING PROCESS, IN SOME INSTANCES THE HOSE STUCK TO THE MANDREL TIGHTLY AND THE OPERATOR HAD TO APPLY A SIGNIFICANT AMOUNT OF FORCE TO PULL THE HOSE FROM THE MANDREL.IF THIS OPERATION WAS PERFORMED ROUGHLY, THE INTERIOR OF THE HOSE COULD BE DAMAGED BY THE MANDREL EDGE. NISSAN ALSO STATES, BECAUSE OF THE WAY THE HOSES RECEIVED INTERNAL DAMAGE, A DAMAGED HOSE WAS PRODUCED AS A RARE, RANDOM EVENT RATHER THAN SYSTEMATICALLY.THE TRANSMISSION HOSE SUPPLIER, COOPER STANDARD AUTOMOTIVE, IMPLEMENTED PROCESS IMPROVEMENTS THAT LIMIT EXCESSIVE STRESS ON THE HOSE DURING MANUFACTURE. NISSAN HAS SHOWN THAT THIS TRANSMISSION COOLER HOSE WAS ASSEMBLED ON MY 2007 AND MY 2008 MAXIMA VEHICLES.NISSAN REDESIGNED THE TRANSMISSION COOLER HOSE ON MY 2009 MAXIMA, AND THE HOSE IS MANUFACTURED BY A NEW SUPPLIER.NISSAN HAS ALSO SHOWN THAT THE LEAKS MOSTLY OCCUR WITHIN THE FIRST 2000 MILES OF SERVICE WITH A SEVERE DROP IN INCIDENTS BEYOND 2000 MILES OF SERVICE.MOST LEAKS HAVE ALREADY OCCURRED, AND THE ONE FIRE WAS MINOR. A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.