NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes complaints
253 reportsClear category filter89,000 miles · Dec 2, 2017
Service Brakes
ON TWO OCCASIONS OVER THE PAST WEEK MY VEHICLE BRAKE PEDAL BECAME VERY SOFT / SPONGY AND WENT TO THE FLOOR WHILE EXITING HIGHWAY OFFRAMP. I WAS EXITING AT ABOUT 40-45 MPH, THE OFFRAMP IS CURVED & WAS BUMPY WITH A COUPLE OF POTHOLES. BRAKES FUNCTIONED NORMALLY UNTIL VEHICLE HIT A BUMP, THEN PEDAL GRADUALLY WENT DOWN FURTHER TO FL…
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ON TWO OCCASIONS OVER THE PAST WEEK MY VEHICLE BRAKE PEDAL BECAME VERY SOFT / SPONGY AND WENT TO THE FLOOR WHILE EXITING HIGHWAY OFFRAMP. I WAS EXITING AT ABOUT 40-45 MPH, THE OFFRAMP IS CURVED & WAS BUMPY WITH A COUPLE OF POTHOLES. BRAKES FUNCTIONED NORMALLY UNTIL VEHICLE HIT A BUMP, THEN PEDAL GRADUALLY WENT DOWN FURTHER TO FLOORBOARD. BRAKING STILL POSSIBLE BUT TOOK POWER SIGNIFICANTLY REDUCED AND DISTANCE INCREASED. I PUMPED THE BRAKES A FEW TIMES AND ALL SEEMED TO RETURN TO NORMAL. ON THE FIRST OCCASION I GOT OUT TO CHECK BRAKE FLUID LEVEL; STILL FILLLED TO MAX LEAVING LINE IN RESERVOIR. I WAS ABLE TO SLOWLY AND CAUTIOUSLY DRIVE HOME. ALL BRAKE PADS ARE NEW, CHANGED IN MARCH 2017. PLEASE LOOK INTO THIS ISSUE; EXTREMELY DANGEROUS CONDITION FOR DRIVER AND OTHER MOTORISTS / PEDESTRIANS.
NHTSA ODI #11052030
120,000 miles · Nov 30, 2017
Service Brakes
THE BRAKES ARE FAILING TO STOP IN A SAFE DISTANCE DUE TO THE BRAKE PEDAL GOING TO THE FLOOR. PROBLEM IS IT COMES AND GOES AND USUALLY STARTS TO HAPPEN AFTER A HARD BREAKING ACTION. THERE IS CURRENTLY AN INVESTIGATION ALREADY OPEN INTO THIS PROBLEM BUT WANTED TO ADD IT TO THE GROWING LIST.
NHTSA ODI #11051626
130,000 miles · Nov 30, 2017
Service Brakes
LOSS OF BRAKE PRESSURE. THE BRAKE PEDAL SUDDENLY GET DOWN TO THE FLOOR. THE SHEEHY NISSAN DEALER IN WALDORF, MARYLAND HAD FIXED IT FOR TWO WEEKS BUT CANNOT SOLVE THAT PROBLEM. IN NISSAN FORUM, MANY NISSAN OWNERS HAVE THE IDENTICAL PROBLEMS LIKE THIS.
NHTSA ODI #11051399
72,000 miles · Nov 28, 2017
Service Brakes
TL* THE CONTACT OWNS A 2009 NISSAN MURANO. WHILE DRIVING UNKNOWN SPEEDS, THE BRAKES WERE APPLIED AND FAILED TO RESPOND. THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD AND THE CONTACT HAD TO PUMP THE BRAKE PEDAL AND DRIVE SLOWLY TO GET THE VEHICLE HOME. THE VEHICLE WAS TOWED TO A LOCAL DEALER (NORTH STRAND NISSAN (2502 HIGHWAY 9 E, L…
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TL* THE CONTACT OWNS A 2009 NISSAN MURANO. WHILE DRIVING UNKNOWN SPEEDS, THE BRAKES WERE APPLIED AND FAILED TO RESPOND. THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD AND THE CONTACT HAD TO PUMP THE BRAKE PEDAL AND DRIVE SLOWLY TO GET THE VEHICLE HOME. THE VEHICLE WAS TOWED TO A LOCAL DEALER (NORTH STRAND NISSAN (2502 HIGHWAY 9 E, LITTLE RIVER, SC 29556) BUT THE FAILURE WAS UNABLE TO BE DUPLICATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE AND OPENED CASE NUMBER: 29027847. NO FURTHER ASSISTANCE WAS PROVIDED. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS APPROXIMATELY 72,000.
NHTSA ODI #11051037
50,134 miles · Nov 28, 2017
Service Brakes
BRAKE PEDAL SUDDENLY GOT SOFT AND WENT TO THE FLOOR AS I EXITED THE HIGHWAY ALMOST CAUSING A REAR END COLLISION. MASTER CYLINDER WAS REPLACED BUT BRAKES REMAIN THE SAME WITH BRAKE PEDAL GOING TO THE FLOOR. AFTER RESEARCHING ON LINE IT APPEARS THAT THE ABS CONTROL MODULE IS TO BLAME BUT NO RECALL HAS BEEN ISSUED BY NISSAN !
NHTSA ODI #11050945
114,696 miles · Nov 15, 2017
Service Brakes
WHEN DRIVING IN RUSH HOUR TRAFFIC THE VEHICLE IN FRONT OF ME RAPIDLY SLOWED, CAUSING ME TO NEED TO BRAKE RAPIDLY AS WELL. UPON APPLYING MY BRAKES, THEY ENGAGED AND THEN INSTANTLY RELEASED AND THE PEDAL WENT TO THE FLOOR WHERE THE BRAKES FINALLY REENGAGED, ALLOWING ME TO SLOW. HAD I NOT BEEN SEVERAL CAR LENGTHS BACK, I WOULD NOT …
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WHEN DRIVING IN RUSH HOUR TRAFFIC THE VEHICLE IN FRONT OF ME RAPIDLY SLOWED, CAUSING ME TO NEED TO BRAKE RAPIDLY AS WELL. UPON APPLYING MY BRAKES, THEY ENGAGED AND THEN INSTANTLY RELEASED AND THE PEDAL WENT TO THE FLOOR WHERE THE BRAKES FINALLY REENGAGED, ALLOWING ME TO SLOW. HAD I NOT BEEN SEVERAL CAR LENGTHS BACK, I WOULD NOT HAVE BEEN ABLE TO STOP. ONCE THIS OCCURRED, EACH TIME I HAD TO BRAKE, THE BRAKES WOULD PERFORM A LITTLE BETTER, BUT REMAINED SPONGY. ONCE I WAS ABLE TO COME TO A STOP, I PUMPED THE BRAKES A COUPLE OF TIMES AND THEY WORKED PROPERLY FROM THAT POINT ON. UPON CHECKING THE VEHICLE, THE BRAKE FLUID AND BRAKES WERE ALL IN GOOD SHAPE AND THERE WAS NO IMMEDIATE EXPLANATION FOR THE PROBLEM. BASED ON INTERNET RESEARCH, HOWEVER, THIS APPEARS TO BE THE PROBLEM THAT IS CURRENTLY BEING INVESTIGATED.
NHTSA ODI #11046236
70,000 miles · Nov 10, 2017
Service Brakes
ONLY 70K MILES ON THE CAR. BRAKES WENT SOFT ALL OF A SUDDEN IN A CITY ENVIRONMENT AFTER GOING OVER A MANHOLE COVER. GOT TO DESTINATION ( PARKING GARAGE). WHEN DONE AT LOCATION BRAKES STILL SOFT AND WENT ALMOST TO FLOOR. GOT THE CAR HOME AND TOOK THE CAR TO REPAIR, WAS TOLD THAT IT AS AN ABS MODULE ASSEMBLY. ALMOST LOST CONTROL O…
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ONLY 70K MILES ON THE CAR. BRAKES WENT SOFT ALL OF A SUDDEN IN A CITY ENVIRONMENT AFTER GOING OVER A MANHOLE COVER. GOT TO DESTINATION ( PARKING GARAGE). WHEN DONE AT LOCATION BRAKES STILL SOFT AND WENT ALMOST TO FLOOR. GOT THE CAR HOME AND TOOK THE CAR TO REPAIR, WAS TOLD THAT IT AS AN ABS MODULE ASSEMBLY. ALMOST LOST CONTROL OF THE CAR AND HAD TO SPEND SIGNIFICANT MONEY TO GET FIXED
NHTSA ODI #11045210
62,528 miles · Nov 8, 2017
Service Brakes
11/04/2017, I WAS DRIVING MY 2009 NISSAN MURANO, 62,528 MILES. I CAME ACROSS A ROAD STRIP GETTING READY FOR TARRING. WHEN I FELT THE SHAKE, I APPLIED THE BRAKE SLOWLY AND I FELT THE BRAKE PEDAL SOFT. ABOUT 100 YARDS FROM ME I HAVE TO STOP AT THE RED LIGHT. I TRIED PUSHING HARD ON THE BRAKE PEDAL, IT WENT ALL THE WAY TO THE F…
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11/04/2017, I WAS DRIVING MY 2009 NISSAN MURANO, 62,528 MILES. I CAME ACROSS A ROAD STRIP GETTING READY FOR TARRING. WHEN I FELT THE SHAKE, I APPLIED THE BRAKE SLOWLY AND I FELT THE BRAKE PEDAL SOFT. ABOUT 100 YARDS FROM ME I HAVE TO STOP AT THE RED LIGHT. I TRIED PUSHING HARD ON THE BRAKE PEDAL, IT WENT ALL THE WAY TO THE FLOOR AND I ENDED UP STOPPING IN THE MIDDLE OF THE INTERSECTION. ALL THE BRAKING AND YELLING FROM OTHER DRIVERS, LUCKILY, NOBODY HITS ME. MY WIFE AND CHILD IN THE CAR GOT PANICKED. DROVE THE VEHICLE TO THE CURB AND STOPPED WITH SOFT BRAKE PEDAL. SWITCHED OFF THE VEHICLE FOR 5 MINUTES AND STATED AND EVERYTHING SEEMS OKAY. NOTICED THAT NO INDICATOR(ESPECIALLY BRAKE INDICATOR) WAS LIGHTED UP DURING THIS ORDEAL. MONDAY CALLED THE DEALER AND MADE AN APPOINTMENT. AS PER THE DEALER, THIS ISSUE IS REPORTED BY OTHER 2009 MURANO OWNERS AND IT COSTS AROUND $3000 TO FIX AS THERE IS NO RECALL ISSUED YET.
NHTSA ODI #11044658
95,000 miles · Nov 7, 2017
Service Brakes
WHEN APPLYING BRAKE DURING DRIVING, BRAKE PEDAL DROPPED TO FLOOR CAUSING THE CAR TO NOT STOP AS NORMAL, ALMOST RESULTING IN TWO SEPARATE ACCIDENTS. ALSO, WHEN STARTING THE CAR, BRAKE PEDAL DROPPED TO FLOOR. DOES NOT HAPPEN CONSISTENTLY, BUT SEVERAL TIMES OVER THE LAST MONTH. MIDAS REPLACED THE MASTER CYLINDER, AS THEY SUGGESTED,…
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WHEN APPLYING BRAKE DURING DRIVING, BRAKE PEDAL DROPPED TO FLOOR CAUSING THE CAR TO NOT STOP AS NORMAL, ALMOST RESULTING IN TWO SEPARATE ACCIDENTS. ALSO, WHEN STARTING THE CAR, BRAKE PEDAL DROPPED TO FLOOR. DOES NOT HAPPEN CONSISTENTLY, BUT SEVERAL TIMES OVER THE LAST MONTH. MIDAS REPLACED THE MASTER CYLINDER, AS THEY SUGGESTED, BUT THE INCIDENT HAPPENED TWICE AFTER. ALL TIMES WERE ON CITY STREETS. INSTEAD OF THE NORMAL LIGHT TOUCH NEEDED I'VE USED SINCE 2009, I HAD TO STOMP THE BRAKE COMPLETELY TO GET IT TO STOP AND AVOID ACCIDENTS.
NHTSA ODI #11044139
83,000 miles · Oct 31, 2017
Service Brakes
AFTER ENCOUNTERING A SLICK SPOT ON THE ROAD, I LOST ALL CAPABILITY TO APPLY THE BRAKES AND STOP IN A SAFE DISTANCE. THE PEDAL WENT TO THE FLOOR AND I HAD TO SWERVE INTO AN ADJACENT LANE OF TRAFFIC TO AVOID HITTING THE CAR IN FRONT OF ME.
NHTSA ODI #11041621
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.
Illustration