NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
69 reportsClear category filter216,000 miles · May 12, 2025
Power Train
The contact owns a 2009 Nissan Murano. The contact stated while driving at an undisclosed speed, the transmission started slipping. There was no warning light illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the transmission. The contact was informed that the transmission needed to be r…
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The contact owns a 2009 Nissan Murano. The contact stated while driving at an undisclosed speed, the transmission started slipping. There was no warning light illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the transmission. The contact was informed that the transmission needed to be rebuilt or replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 216,000.
NHTSA ODI #11660467
Mileage unknown · Aug 8, 2024
Power TrainUnknown Or Other
When starting my vehicle, it would shake and hesitate to turn on. While driving, It would hesitate when accelerating. When driving at 70 miles, the vehicle would hesitate then drop 3 to 4 miles below speed on its own. The dashboard would indicate drive mode then change to reverse mode then back to drive mode, then reverse mode c…
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When starting my vehicle, it would shake and hesitate to turn on. While driving, It would hesitate when accelerating. When driving at 70 miles, the vehicle would hesitate then drop 3 to 4 miles below speed on its own. The dashboard would indicate drive mode then change to reverse mode then back to drive mode, then reverse mode continuously while driving. The car was also making a loud clanking noise. When I was at a standstill at a red light with foot on the brake, the car was jerking forward on its own. I was driving the car with my 2 year old when this happened and decided to take it to a mechanic who confirmed that it is a transmission problem as well as a broken axle on the left. I left the car at his shop and started shopping around for a transmission replacement which is very costly. My concern is, if this has been a faulty issue with 2009 Nissan Murano transmissions, then it is likely that this can happen again if I purchase a used transmission which at this time, I cannot afford so it is sitting at the mechanics repair shop until I either save money for a transmission or use the money to get a better used vehicle. At this time I have to take my mom to work and use her car so i can go to work. I’ve been doing this for the past 2 weeks and unsure as to how much longer I can keep doing this as our work hours are conflicting.
NHTSA ODI #11607393
Mileage unknown · May 16, 2024
Power TrainService Brakes
My 2009 Nissan Murano had a bad battery and starter, after replaced them the ABS/VDC/Slip control light were illuminated and ABS function lost. I searched online and found a lot of the Murano owners had the same issue by just replacing a battery then got these DTCs. At the end we found Nissan know this issue and issue a TSB for …
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My 2009 Nissan Murano had a bad battery and starter, after replaced them the ABS/VDC/Slip control light were illuminated and ABS function lost. I searched online and found a lot of the Murano owners had the same issue by just replacing a battery then got these DTCs. At the end we found Nissan know this issue and issue a TSB for repair with customer's expense. They know this is factory issue but not recall it or even not notify their customer, it's safety issue and still need the customer to search it and repair with the customer's money (to pay their faults). TSB: NTB10-113a
NHTSA ODI #11589029
Mileage unknown · Feb 25, 2024
Power Train
My car hesitates then launches after a stop. It is the CVT transmission I assume. It is not safe when I am accelerating into traffic or trying to merge. Only 132,000 miles on the car.
NHTSA ODI #11573869
Mileage unknown · Dec 6, 2023
Electrical SystemPower TrainVehicle Speed Control
This has happened on two different occasions. While driving the vehicle the alternator has gone out and there is no warning that there is any problem but you lose your throttle control and the car loses power and is unable to accelerate. The 1st time this happened I was in the middle of an intersection trying to make a left turn…
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This has happened on two different occasions. While driving the vehicle the alternator has gone out and there is no warning that there is any problem but you lose your throttle control and the car loses power and is unable to accelerate. The 1st time this happened I was in the middle of an intersection trying to make a left turn and lost all power to be able to move the car. Luckly no one was coming in the other direction, or I could have been involved in a serious accident!!! I had the alternator check and it was bad, so we replaced it. The second time this happened was two days ago I was doing 65 MPH on a four-lane highway and without any warning I lost power and could not accelerate I was able to pull to the side of the road, but m emergency flashers were of no use due to the battery was low because the entire car was using it for power. The car has no gauge or light of any type to warn you that the alternator has failed till you lose power and are unable to accelerate.
NHTSA ODI #11558828
139,000 miles · Sep 25, 2023
Power Train
The contact owns a 2009 Nissan Murano. The contact stated that while driving at an undisclosed speed, the engine warning light illuminated on the instrument panel. The vehicle was taken to an independent mechanic, who diagnosed a failure with the transmission seal. The vehicle was not repaired. The vehicle was taken to another i…
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The contact owns a 2009 Nissan Murano. The contact stated that while driving at an undisclosed speed, the engine warning light illuminated on the instrument panel. The vehicle was taken to an independent mechanic, who diagnosed a failure with the transmission seal. The vehicle was not repaired. The vehicle was taken to another independent mechanic, who confirmed the diagnosis and advised the contact to take the vehicle to a dealer. The vehicle was then taken to the dealer, who diagnosed failures with the axel seals, rear differential axle seal, and left TPMS sensor. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 139,000.
NHTSA ODI #11546378
Mileage unknown · Apr 27, 2023
Power TrainService BrakesUnknown Or Other
While trying to make a turn in a busy intersection, the car stall and loses power it goes into a limp mode. The car slowly limps out of traffic to the side. Note VDC off and 2 red - neg sign brake light is on. Turn the ignition off for a few minutes. Turn ignition back on and no problem. The car starts up no problem. I had…
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While trying to make a turn in a busy intersection, the car stall and loses power it goes into a limp mode. The car slowly limps out of traffic to the side. Note VDC off and 2 red - neg sign brake light is on. Turn the ignition off for a few minutes. Turn ignition back on and no problem. The car starts up no problem. I had the brakes check out and no issues. I took to Nissan dealership . They said it is the alternator. I had new alternator put in 6 months ago. Took back to the company who put the alternator on He said it is working. They said this car notorious for the CVT transmission issues. This problem has happen twice in traffic. This is not safe.... I am afraid to drive this car.
NHTSA ODI #11519208
Mileage unknown · Apr 5, 2023
Electrical SystemPower Train
As with the current Nissan recall the car just shutoff. On two separate occasions, one at highway speed on a high speed heavy traffic road and once of a neighborhood road. Both times spontaneously and without any warning or trouble lights or indications of a problem. Vehicles was towed and serviced at a Nissan dealership.. B…
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As with the current Nissan recall the car just shutoff. On two separate occasions, one at highway speed on a high speed heavy traffic road and once of a neighborhood road. Both times spontaneously and without any warning or trouble lights or indications of a problem. Vehicles was towed and serviced at a Nissan dealership.. Both incidents were extremely dangerous one to get to shoulder in high speed traffic and to exit vehicle next to traffic and the other at night in a dark neighborhood. Dealer was without explanation on cause so we dont know if the problem is fixed or not. Prior request #602941
NHTSA ODI #11515689
Mileage unknown · Aug 29, 2022
Power Train
When stopped at stop lights or even a stop sign & it's my time to go my vehicle will "creep" at a snail's pace regardless of my position on the gas petal, then all of a sudden jerk & take off fast. On 2 occasions my vehicle would not even go when the turn light went to green & I quickly shifted to "L" where it did take off & the…
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When stopped at stop lights or even a stop sign & it's my time to go my vehicle will "creep" at a snail's pace regardless of my position on the gas petal, then all of a sudden jerk & take off fast. On 2 occasions my vehicle would not even go when the turn light went to green & I quickly shifted to "L" where it did take off & the rooms jumped to 5000 & after getting out of heavy traffic I put it back in Drive. This issue occurs randomly & I've had a verbal conversation with a mechanic in my family that says, my 2009 Murano has a CVT transmission, they are very costly to replace. I only have 159,000 miles on my Murano & I drive my Autistic grandson to school & home only. I'm only bringing this to your attention to fund out if I'm the only person that has had issues with the CVT transmission bc a $4-$5000 new transmission is impossible for us. This has been happening off & on for about 6 months.
NHTSA ODI #11481694
55,000 miles · Mar 6, 2021
Power Train
THE VEHICLE HAD CATASTROPHIC TRANSMISSION FAILURE AT HIGHWAY SPEEDS. THE VEHICLE HAS ALL REGULAR MAINTENANCE AND LESS THAN 60,000 MILES ON THE ODOMETER. WE HAD TO MAKE EVASIVE MANEUVERS TO AVOID BEING IN A COLLISION.
NHTSA ODI #11399480
Official recalls
4Dec 19, 2018
Nissan of North America, Inc (Nissan) is recalling certain 2009 Murano vehicles. The valves within the ABS Hydraulic Control Units (HCU) may react with brake fluids containing specific corrosion preventative additives. This reaction may cause the valves to not close properly.
Consequence & remedy
Consequence: If the valves do not properly close, additional brake pedal travel may be required to stop the vehicle, increasing the risk of a crash.
Remedy: Nissan has notified owners, and dealers will flush the brake system with DOT 4 fluid. The HCU will then be tested to detect a possible stuck valve condition. If necessary, the HCU will be replaced, free of charge. The recall began February 7, 2019. Owners may contact Nissan customer service at 1-800-867-7669.
Oct 5, 2009
NISSAN IS RECALLING CERTAIN MODEL YEAR 2008-2010 VEHICLES ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, IOWA, ILLINOIS, INDIANA, MASSACHUSETTS, MAINE, MARYLAND, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WASHINGTON D.C., WEST VIRGINIA AND WISCONSIN. THE MATERIAL IN THE NUT USED TO SECURE THE SENSOR-TRANSMITTER OF THE TIRE PRESSURE MONITORING SYSTEM (TPMS) MAY CORRODE AND POTENTIALLY CRACK IN AREAS WITH HEAVY CONCENTRATIONS OF ROAD SALT. IF THIS OCCURS, THE NUT MAY COME OUT OF THE SENSOR-TRANSMITTER AND THE TPMS LAMP WILL ILLUMINATE.
Consequence & remedy
Consequence: IF THE TPMS LAMP IS DISREGARDED AND THE VEHICLE CONTINUES TO BE DRIVEN IN THIS CONDITION, THE TIRE WILL QUICKLY LOSE AIR PRESSURE AT A CONSISTENT RATE RESULTING IN A FLAT TIRE INCREASING THE RISK OF A CRASH.
Remedy: THE DEALER WILL REPLACE THE TPMS NUT WITH A NEW, MORE ROBUST NUT. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN ON OR BEFORE NOVEMBER 9, 2009. OWNERS MAY CONTACT NISSAN AT 1-800-647-7261 AND INFINITI AT 1-800-662-6200.
Oct 7, 2008
NISSAN IS RECALLING 204,361 MY 2007-2008 ALTIMA, ALTIMA HYBRID, 350Z, 350Z ROADSTER, MY 2008 ALTIMA COUPE, ROGUE, MY 2009 MURANO, AND INFINITI MY 2007-2008 G35 SEDAN, MY 2008 G37 COUPE AND EX35 PASSENGER VEHICLES EQUIPPED WITH CONTINENTAL AUTOMOTIVE SYSTEMS' OCCUPANT CLASSIFICATION SYSTEM (OCS) CONTROL UNITS. A VARISTOR IN THE OCS CONTROL UNIT LOCATED IN THE PASSENGER SEAT CUSHION MAY HAVE BEEN MANUFACTURED OUT OF SPECIFICATION. UNDER CERTAIN CONDITIONS, THIS COULD CAUSE AN INTERRUPTION OF SIGNAL BETWEEN THE OCS AND THE AIR BAG CONTROL UNIT (ACU).
Consequence & remedy
Consequence: THIS COULD RESULT IN THE PASSENGER AIR BAG BEING SUPPRESSED WHICH COULD FAIL TO PROVIDE ADEQUATE PROTECTION IN THE EVENT OF A CRASH.
Remedy: DEALERS WILL TEST THE SIGNAL BETWEEN THE OCS AND ACU SYSTEMS USING A SPECIAL TOOL TO CHECK THAT IT IS FUNCTIONING AS DESIGNED. IF NECESSARY, THE SEAT CUSHION (CONTAINING OCS HARDWARE) WILL BE REPLACED WITH A NEW ONE MANUFACTURED TO SPECIFICATION. THE RECALL BEGAN ON NOVEMBER 4, 2008. OWNERS MAY CONTACT NISSAN AT 1-800-647-7261 OR INFINITI AT 1-800-662-6200.
Additional source detail variants (2)
Electrical System:software
NISSAN IS RECALLING 204,361 MY 2007-2008 ALTIMA, ALTIMA HYBRID, 350Z, 350Z ROADSTER, MY 2008 ALTIMA COUPE, ROGUE, MY 2009 MURANO, AND INFINITI MY 2007-2008 G35 SEDAN, MY 2008 G37 COUPE AND EX35 PASSENGER VEHICLES EQUIPPED WITH CONTINENTAL AUTOMOTIVE SYSTEMS' OCCUPANT CLASSIFICATION SYSTEM (OCS) CONTROL UNITS. A VARISTOR IN THE OCS CONTROL UNIT LOCATED IN THE PASSENGER SEAT CUSHION MAY HAVE BEEN MANUFACTURED OUT OF SPECIFICATION. UNDER CERTAIN CONDITIONS, THIS COULD CAUSE AN INTERRUPTION OF SIGNAL BETWEEN THE OCS AND THE AIR BAG CONTROL UNIT (ACU).
Consequence: THIS COULD RESULT IN THE PASSENGER AIR BAG BEING SUPPRESSED WHICH COULD FAIL TO PROVIDE ADEQUATE PROTECTION IN THE EVENT OF A CRASH.
Remedy: DEALERS WILL TEST THE SIGNAL BETWEEN THE OCS AND ACU SYSTEMS USING A SPECIAL TOOL TO CHECK THAT IT IS FUNCTIONING AS DESIGNED. IF NECESSARY, THE SEAT CUSHION (CONTAINING OCS HARDWARE) WILL BE REPLACED WITH A NEW ONE MANUFACTURED TO SPECIFICATION. THE RECALL BEGAN ON NOVEMBER 4, 2008. OWNERS MAY CONTACT NISSAN AT 1-800-647-7261 OR INFINITI AT 1-800-662-6200.
Air Bags
NISSAN IS RECALLING 204,361 MY 2007-2008 ALTIMA, ALTIMA HYBRID, 350Z, 350Z ROADSTER, MY 2008 ALTIMA COUPE, ROGUE, MY 2009 MURANO, AND INFINITI MY 2007-2008 G35 SEDAN, MY 2008 G37 COUPE AND EX35 PASSENGER VEHICLES EQUIPPED WITH CONTINENTAL AUTOMOTIVE SYSTEMS' OCCUPANT CLASSIFICATION SYSTEM (OCS) CONTROL UNITS. A VARISTOR IN THE OCS CONTROL UNIT LOCATED IN THE PASSENGER SEAT CUSHION MAY HAVE BEEN MANUFACTURED OUT OF SPECIFICATION. UNDER CERTAIN CONDITIONS, THIS COULD CAUSE AN INTERRUPTION OF SIGNAL BETWEEN THE OCS AND THE AIR BAG CONTROL UNIT (ACU).
Consequence: THIS COULD RESULT IN THE PASSENGER AIR BAG BEING SUPPRESSED WHICH COULD FAIL TO PROVIDE ADEQUATE PROTECTION IN THE EVENT OF A CRASH.
Remedy: DEALERS WILL TEST THE SIGNAL BETWEEN THE OCS AND ACU SYSTEMS USING A SPECIAL TOOL TO CHECK THAT IT IS FUNCTIONING AS DESIGNED. IF NECESSARY, THE SEAT CUSHION (CONTAINING OCS HARDWARE) WILL BE REPLACED WITH A NEW ONE MANUFACTURED TO SPECIFICATION. THE RECALL BEGAN ON NOVEMBER 4, 2008. OWNERS MAY CONTACT NISSAN AT 1-800-647-7261 OR INFINITI AT 1-800-662-6200.
Feb 12, 2008
NISSAN IS RECALLING 16,365 MY 2008 INFINITI EX35 AND MY 2009 NISSAN MURANO VEHICLES. DUE TO INCORRECT SOFTWARE PROGRAMMING, THE AIR BAG CONTROL UNIT (ACU) MAY CAUSE THE PASSENGER AIR BAG NOT TO OPERATE AS DESIGNED IF THE VEHICLE BATTERY BECOMES SIGNIFICANTLY DISCHARGED.
Consequence & remedy
Consequence: THIS COULD RESULT IN THE PASSENGER AIR BAG NOT INFLATING IN A CRASH IN WHICH IT WAS DESIGNED TO DO SO, AND INCREASING THE RISK OF INJURY.
Remedy: DEALERS WILL REPROGRAM THE ACU IN AFFECTED VEHICLES. THE RECALL BEGAN ON FEBRUARY 19, 2008. OWNERS MAY CONTACT INFINITI AT 1-800-662-6200 OR 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
2EA18001 · Extended Braking Distances
Opened Apr 18, 2018 · Closed Jan 17, 2023
Status: closed (inferred from source dates) · Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip
On April 18, 2018, the Office of Defects Investigation (ODI) opened Engineering Analysis (EA) 18-001 to investigate reports of braking concerns in model year (MY) 2009 Nissan Murano vehicles. A failure of the hydraulic control unit (HCU) portion of the antilock brake system (ABS), which involves improper operation of an internal hydraulic control valve(s), can cause extended brake pedal travel and may result in a reduction in overall braking effectiveness. Tier-one supplier Continental manufactured the HCU for Nissan.The corrosion-preventive, zinc coating used on the armatures of the normally closed (NC) valves within ABS HCU may react with brake fluids lacking sufficient corrosion-preventative additives. This reaction can cause the formation of a gelatinous material, which may cause the NC valves to close slowly. Over time, the gel can solidify to an extent such that the spring used to return the valve to the closed position may not be able to overcome the gel buildup, allowing the NC valve to remain open. If any of the four NC valves remains open, fluid will be diverted to one or two accumulator(s). This misdirected fluid has the net effect of causing brake pedal travel to increase, however enough stroke remains in the pedal to generate braking force. Although the hydraulic braking system remains intact and full braking force is maintained once the pedal travels the additional distance, when this condition occurs, the initial increase in brake pedal travel could result in increased stopping distance. An existing Nissan Service Campaign was launched for MY 2009 vehicles built prior to 11/1/2007. After consultation with ODI as part of EA18-001, Nissan decided to expand this population to the full range of MY2009 Murano vehicles. Later Murano vehicles exhibit significantly lower rates of malfunction.During this investigation 156 complaints were identified that related to the braking concern. Within the complainants 2 allege crashes with 4 injuries. The Nissan reports from investigation Information Request letter responses, were similar in content and identified 870 reports with 16 crashes and no injuries.On December 19, 2018, Nissan notified ODI it would conduct a safety recall (18V916) to remedy the ABS modules on certain MY 2009 Nissan Murano vehicles. The remedy procedure involves dealers flushing the brake system with DOT 4 fluid. The HCU will then be tested to detect a possible stuck valve condition. If necessary, the HCU will be replaced. The 2010-14 Murano SUVs outside the recall population and equipped with zinc-coated armatures will be inspected under a service campaign P0A08 using the same procedure as recall 18V916.Continental HCUs with a redesigned armature coating were phased into new vehicle production after December 2014 and do not appear to be experiencing corrosion. The recall action initiated by the manufacturer appears to address the safety risks of concern to ODI. Accordingly, the investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exists on other model or MY vehicles outside of the recall scope. The agency reserves the right to take further action if warranted by the circumstances.For a complete summary of this investigation and related consumer complaints, please see attached closing resume document.
PE17002 · Extended Braking Distances
Opened May 3, 2017 · Closed May 4, 2018
Status: closed (inferred from source dates) · Service Brakes; Service Brakes, Air:antilock; Service Brakes, Air:antilock:control Unit/module
The Office of Defects Investigation (ODI) is closing this Preliminary Evaluation and upgrading to an Engineering Analysis (EA) 18-001.During the PE, ODI requested and reviewed information provided by Nissan including consumer complaints and other field and technical data related to failures of the hydraulic control unit (HCU), an electro-mechanical brake system component that provides antilock braking and other functionality in the subject model year (MY) 2009 Murano.The subject failure of the HCU, which involves improper operation of an internal hydraulic control valve, can cause extended brake pedal travel and may result in a reduction in overall braking effectiveness.Tier-one supplier Continental manufactured the HCU for Nissan.ODI currently recognizes 484 subject vehicle complaints that appear related to the alleged defect.Fourteen crash allegations, with three non-life threatening injuries are under evaluation also.ODI has been monitoring consumer complaints received, and in some cases has obtained suspect HCUs from complainants' vehicles.Recovered HCUs sent to NHTSA's Vehicle Research and Test Center (VRTC) in East Liberty, Ohio are under evaluation, and VRTC has conducted limited vehicle testing also.In a July 28, 2017 submission, Nissan acknowledged that a failure of the HCU can result in increased brake pedal travel during braking.Nissan's analysis of returned parts revealed that a zinc coating used on the normally closed valve assemblies inside the HCU may react with certain brake fluid constituents.The reaction results in the formation of a gelatinous material that can harden with time and prevent the valve from closing after opening in an ABS event.When this occurs, Nissan maintains that the hydraulic brake system remains intact and that full braking is available once the pedal travels an additional distance, about 36 mm according to Nissan.Although still under investigation, Nissan states it has not determined the condition represents an unreasonable risk to motor vehicle safety, citing low rate and vehicle age as additional factors.In March 2018, Nissan began conducting a customer satisfaction campaign on certain MY 2009 Murano to service (flush and replace the brake fluid), and then test and replace the HCU as needed.The campaign is being conducted free of charge to customers.During the EA, ODI will request VRTC continue to evaluate the cause and consequence of HCU failures, including the affects of multi-valve failures.ODI will further study the potential scope of the alleged defect as it understands similar HCUs and brake fluid is used in other MY Muranos, and potentially in other Nissan models as well.ODI notes that improved valve coatings were introduced on Nissan HCUs at some subsequent stage.
Additional source detail variants (3)
Service Brakes, Air:antilock:control Unit/module
The Office of Defects Investigation (ODI) is closing this Preliminary Evaluation and upgrading to an Engineering Analysis (EA) 18-001.During the PE, ODI requested and reviewed information provided by Nissan including consumer complaints and other field and technical data related to failures of the hydraulic control unit (HCU), an electro-mechanical brake system component that provides antilock braking and other functionality in the subject model year (MY) 2009 Murano.The subject failure of the HCU, which involves improper operation of an internal hydraulic control valve, can cause extended brake pedal travel and may result in a reduction in overall braking effectiveness.Tier-one supplier Continental manufactured the HCU for Nissan.ODI currently recognizes 484 subject vehicle complaints that appear related to the alleged defect.Fourteen crash allegations, with three non-life threatening injuries are under evaluation also.ODI has been monitoring consumer complaints received, and in some cases has obtained suspect HCUs from complainants' vehicles.Recovered HCUs sent to NHTSA's Vehicle Research and Test Center (VRTC) in East Liberty, Ohio are under evaluation, and VRTC has conducted limited vehicle testing also.In a July 28, 2017 submission, Nissan acknowledged that a failure of the HCU can result in increased brake pedal travel during braking.Nissan's analysis of returned parts revealed that a zinc coating used on the normally closed valve assemblies inside the HCU may react with certain brake fluid constituents.The reaction results in the formation of a gelatinous material that can harden with time and prevent the valve from closing after opening in an ABS event.When this occurs, Nissan maintains that the hydraulic brake system remains intact and that full braking is available once the pedal travels an additional distance, about 36 mm according to Nissan.Although still under investigation, Nissan states it has not determined the condition represents an unreasonable risk to motor vehicle safety, citing low rate and vehicle age as additional factors.In March 2018, Nissan began conducting a customer satisfaction campaign on certain MY 2009 Murano to service (flush and replace the brake fluid), and then test and replace the HCU as needed.The campaign is being conducted free of charge to customers.During the EA, ODI will request VRTC continue to evaluate the cause and consequence of HCU failures, including the affects of multi-valve failures.ODI will further study the potential scope of the alleged defect as it understands similar HCUs and brake fluid is used in other MY Muranos, and potentially in other Nissan models as well.ODI notes that improved valve coatings were introduced on Nissan HCUs at some subsequent stage.
Service Brakes, Air:antilock
The Office of Defects Investigation (ODI) is closing this Preliminary Evaluation and upgrading to an Engineering Analysis (EA) 18-001.During the PE, ODI requested and reviewed information provided by Nissan including consumer complaints and other field and technical data related to failures of the hydraulic control unit (HCU), an electro-mechanical brake system component that provides antilock braking and other functionality in the subject model year (MY) 2009 Murano.The subject failure of the HCU, which involves improper operation of an internal hydraulic control valve, can cause extended brake pedal travel and may result in a reduction in overall braking effectiveness.Tier-one supplier Continental manufactured the HCU for Nissan.ODI currently recognizes 484 subject vehicle complaints that appear related to the alleged defect.Fourteen crash allegations, with three non-life threatening injuries are under evaluation also.ODI has been monitoring consumer complaints received, and in some cases has obtained suspect HCUs from complainants' vehicles.Recovered HCUs sent to NHTSA's Vehicle Research and Test Center (VRTC) in East Liberty, Ohio are under evaluation, and VRTC has conducted limited vehicle testing also.In a July 28, 2017 submission, Nissan acknowledged that a failure of the HCU can result in increased brake pedal travel during braking.Nissan's analysis of returned parts revealed that a zinc coating used on the normally closed valve assemblies inside the HCU may react with certain brake fluid constituents.The reaction results in the formation of a gelatinous material that can harden with time and prevent the valve from closing after opening in an ABS event.When this occurs, Nissan maintains that the hydraulic brake system remains intact and that full braking is available once the pedal travels an additional distance, about 36 mm according to Nissan.Although still under investigation, Nissan states it has not determined the condition represents an unreasonable risk to motor vehicle safety, citing low rate and vehicle age as additional factors.In March 2018, Nissan began conducting a customer satisfaction campaign on certain MY 2009 Murano to service (flush and replace the brake fluid), and then test and replace the HCU as needed.The campaign is being conducted free of charge to customers.During the EA, ODI will request VRTC continue to evaluate the cause and consequence of HCU failures, including the affects of multi-valve failures.ODI will further study the potential scope of the alleged defect as it understands similar HCUs and brake fluid is used in other MY Muranos, and potentially in other Nissan models as well.ODI notes that improved valve coatings were introduced on Nissan HCUs at some subsequent stage.
Service Brakes
The Office of Defects Investigation (ODI) is closing this Preliminary Evaluation and upgrading to an Engineering Analysis (EA) 18-001.During the PE, ODI requested and reviewed information provided by Nissan including consumer complaints and other field and technical data related to failures of the hydraulic control unit (HCU), an electro-mechanical brake system component that provides antilock braking and other functionality in the subject model year (MY) 2009 Murano.The subject failure of the HCU, which involves improper operation of an internal hydraulic control valve, can cause extended brake pedal travel and may result in a reduction in overall braking effectiveness.Tier-one supplier Continental manufactured the HCU for Nissan.ODI currently recognizes 484 subject vehicle complaints that appear related to the alleged defect.Fourteen crash allegations, with three non-life threatening injuries are under evaluation also.ODI has been monitoring consumer complaints received, and in some cases has obtained suspect HCUs from complainants' vehicles.Recovered HCUs sent to NHTSA's Vehicle Research and Test Center (VRTC) in East Liberty, Ohio are under evaluation, and VRTC has conducted limited vehicle testing also.In a July 28, 2017 submission, Nissan acknowledged that a failure of the HCU can result in increased brake pedal travel during braking.Nissan's analysis of returned parts revealed that a zinc coating used on the normally closed valve assemblies inside the HCU may react with certain brake fluid constituents.The reaction results in the formation of a gelatinous material that can harden with time and prevent the valve from closing after opening in an ABS event.When this occurs, Nissan maintains that the hydraulic brake system remains intact and that full braking is available once the pedal travels an additional distance, about 36 mm according to Nissan.Although still under investigation, Nissan states it has not determined the condition represents an unreasonable risk to motor vehicle safety, citing low rate and vehicle age as additional factors.In March 2018, Nissan began conducting a customer satisfaction campaign on certain MY 2009 Murano to service (flush and replace the brake fluid), and then test and replace the HCU as needed.The campaign is being conducted free of charge to customers.During the EA, ODI will request VRTC continue to evaluate the cause and consequence of HCU failures, including the affects of multi-valve failures.ODI will further study the potential scope of the alleged defect as it understands similar HCUs and brake fluid is used in other MY Muranos, and potentially in other Nissan models as well.ODI notes that improved valve coatings were introduced on Nissan HCUs at some subsequent stage.
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