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2012 Hyundai Genesis

Owner reports · Recalls · Investigations

More warning signs than most Genesis years

Owner complaints for the 2012 Hyundai Genesis are substantially higher than the model-year median of 109.

About this comparison →

When problems were reported

Mileage at the reported incident

210 reports with mileage · 49 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.

  • Engine. Review the 68 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 49 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 39 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

8 crash reports1 fire reports5 injury reports

What owners actually said

259 reports
87,284 miles · Aug 2, 2019
Engine

TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHILE THE VEHICLE WAS AT A STOP LIGHT, IT STALLED AND RESTARTED AFTER A FEW MINUTES. ALL THE INSTRUMENT CLUSTER WARNING INDICATORS WERE FLASHING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER AND DEALER WERE NOT CONTACTED. THE FAILURE MILEAGE WAS 87,284.

NHTSA ODI #11241297

50,000 miles · Jul 24, 2019
EnginePower Train

TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHILE DRIVING 25 MPH, THE CONTACT APPROACHED A TRAFFIC LIGHT AND THE VEHICLE SHUT OFF. ALL THE WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL. AFTER WAITING A FEW MINUTES, THE CONTACT WAS ABLE TO RESTART THE VEHICLE AND DRIVE HOME. THE DEALER AND MANUFACTURER WERE NOT NOTIFIED…

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TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHILE DRIVING 25 MPH, THE CONTACT APPROACHED A TRAFFIC LIGHT AND THE VEHICLE SHUT OFF. ALL THE WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL. AFTER WAITING A FEW MINUTES, THE CONTACT WAS ABLE TO RESTART THE VEHICLE AND DRIVE HOME. THE DEALER AND MANUFACTURER WERE NOT NOTIFIED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 50,000. *BF

NHTSA ODI #11234594

108,227 miles · Jul 24, 2019
Seats

WHILE IN PARK, PASSENGER SIDE HEADREST EXPLODED. CAR HAS NEVER BEEN IN A WRECK, NOT EVEN THE SLIGHTEST FENDER BENDER. THERE WAS NO REASON THIS SHOULD HAVE DEPLOYED. PLASTIC CLAMPS FLEW OUT. DEALERSHIP SAID THIS WAS UNREPAIRABLE AND WHOLE SEAT WOULD NEED TO BE REPLACED. I WAS LUCKY NOT TO HAVE A PASSENGER THAT DAY OR THEY WOULD H…

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WHILE IN PARK, PASSENGER SIDE HEADREST EXPLODED. CAR HAS NEVER BEEN IN A WRECK, NOT EVEN THE SLIGHTEST FENDER BENDER. THERE WAS NO REASON THIS SHOULD HAVE DEPLOYED. PLASTIC CLAMPS FLEW OUT. DEALERSHIP SAID THIS WAS UNREPAIRABLE AND WHOLE SEAT WOULD NEED TO BE REPLACED. I WAS LUCKY NOT TO HAVE A PASSENGER THAT DAY OR THEY WOULD HAVE SUFFERED INJURIES.

NHTSA ODI #11234323

109,321 miles · Jul 23, 2019
Service Brakes, Hydraulic

SOFT BRAKING, INTERMITTENT. PEDAL GOES DOWN TO THE FLOOR AND MUST BE PUMPED TO STOP. I TOOK IT TO MY GO-TO GUY WHO SPECIALIZES IN BRAKES AND HE COULDN'T RECREATE IT. HE TOOK LOOK AT EVERYTHING AND COULDN'T FIND ISSUE IN THE BRAKES THEMSELVES. RECENTLY HAPPENED AGAIN.

NHTSA ODI #11234320

45,000 miles · Jul 18, 2019
Service Brakes, Hydraulic

TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHEN THE BRAKE PEDAL WAS DEPRESSED, IT TRAVELED TO THE FLOORBOARD. THERE WAS NO WARNING INDICATOR ILLUMINATED. NAPLETON'S NORTH PALM HYUNDAI (3703 NORTHLAKE BLVD, LAKE PARK, FL 33403, 1-888-691-9402) WAS CONTACTED AND STATED THAT THE VIN WAS EXCLUDED FROM NHTSA CAMPAIGN NUMBER: 13V489…

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TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHEN THE BRAKE PEDAL WAS DEPRESSED, IT TRAVELED TO THE FLOORBOARD. THERE WAS NO WARNING INDICATOR ILLUMINATED. NAPLETON'S NORTH PALM HYUNDAI (3703 NORTHLAKE BLVD, LAKE PARK, FL 33403, 1-888-691-9402) WAS CONTACTED AND STATED THAT THE VIN WAS EXCLUDED FROM NHTSA CAMPAIGN NUMBER: 13V489000 (SERVICE BRAKES, HYDRAULIC); HOWEVER, THE VEHICLE EXHIBITED THE SAME FAILURE AS THE RECALL CAMPAIGN. THE VEHICLE WAS INSPECTED BY AN INDEPENDENT MECHANIC. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 45,000.

NHTSA ODI #11233044

55,000 miles · Jul 6, 2019
Power Train

WHILE ACCELERATING, THE TRANSMISSION WOULD SLIP. THIS WOULD CAUSE THE CAR TO LOSE POWER WHILE THE GEAR SLIPPED, THEN THE GEAR WOULD CATCH AND THE CAR WOULD SURGE FORWARD. THE DEALER COULD NOT FIND AN ISSUE AND GAVE THE CAR BACK TO ME. THE PROBLEM RETURNED, SO I HAD THE CAR TOWED BACK TO THE DEALER. THE DEALER REPLACED THE AU…

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WHILE ACCELERATING, THE TRANSMISSION WOULD SLIP. THIS WOULD CAUSE THE CAR TO LOSE POWER WHILE THE GEAR SLIPPED, THEN THE GEAR WOULD CATCH AND THE CAR WOULD SURGE FORWARD. THE DEALER COULD NOT FIND AN ISSUE AND GAVE THE CAR BACK TO ME. THE PROBLEM RETURNED, SO I HAD THE CAR TOWED BACK TO THE DEALER. THE DEALER REPLACED THE AUTOMATIC TRANSMISSION AND THE ISSUE RESOLVED. THE REPLACED TRANSMISSION BEGAN TO EXHIBIT THE SAME BEHAVIOR APPROXIMATELY 35,000 MILES LATER.

NHTSA ODI #11229849

104,736 miles · Jun 5, 2019
Service Brakes, Hydraulic

BRAKE PEDAL BEGAN IS REQUIRING MORE AND MORE TRAVEL TO ACHIEVE BRAKING EFFECTIVENESS. THERE IS NO EVIDENCE OF A BRAKE FLUID LEAK. THERE IS NO REDUCTION OF BRAKE FLUID IN THE RESERVOIR. THE ABILITY TO MODULATE BRAKING IS IMPAIRED AT TIMES AND ONE MUST PUMP THE BRAKE PEDAL TO BUILD PRESSURE TO STOP.

NHTSA ODI #11218200

77,000 miles · Jun 3, 2019
Service Brakes, Hydraulic

REF: NHTSA CAMPAIGN NO 13V489000 HYUNDAI GENESIS 2012, 4.6L, V8, 4 DOOR SEDAN, WITH APPROX 77000 MILES. IN THE LAST 6 WEEKS WE HAD THE BRAKE PEDAL GO ALL THE WAY TO THE FLOOR 3 TIMES WITH LITTLE OR NO BRAKING OCCURRING. TWO WEEKS AGO THIS CAR WAS TAKEN INTO LIBERTY (FELDMAN) HYUNDAI IN NEW HUDSON, MICH FOR REPAIR OF THIS BRAKE…

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REF: NHTSA CAMPAIGN NO 13V489000 HYUNDAI GENESIS 2012, 4.6L, V8, 4 DOOR SEDAN, WITH APPROX 77000 MILES. IN THE LAST 6 WEEKS WE HAD THE BRAKE PEDAL GO ALL THE WAY TO THE FLOOR 3 TIMES WITH LITTLE OR NO BRAKING OCCURRING. TWO WEEKS AGO THIS CAR WAS TAKEN INTO LIBERTY (FELDMAN) HYUNDAI IN NEW HUDSON, MICH FOR REPAIR OF THIS BRAKE PROBLEM. AFTER $95 FOR AN 'INSPECTION,' WHICH DID NOT INCLUDE ANY OIL CHANGE, THE REPORT WAS THAT NO PROBLEM WAS FOUND. THIS CAR WAS SERVICED IN MARCH, 2014, PER HYUNDAI RECALL NO. 114 BH HECU, WHICH CALLED FOR INSPECTION AND REPLACING THE BRAKE FLUID. THIS WAS DONE. THERE HAVE BEEN NO BRAKE PROBLEMS SINCE THAT TIME UNTIL ABOUT 6 WEEKS AGO. THIS CAR WAS SERVICED IN MARCH, 2014, PER HYUNDAI RECALL NO. 114 BH HECU, WHICH CALLED FOR INSPECTION AND REPLACING THE BRAKE FLUID. THIS WAS DONE. THERE HAVE BEEN NO BRAKE PROBLEMS SINCE THAT TIME UNTIL ABOUT 6 WEEKS AGO. THIS CAR WAS SERVICED IN MARCH, 2014, PER HYUNDAI RECALL NO. 114 BH HECU, WHICH CALLED FOR INSPECTION AND REPLACING THE BRAKE FLUID. THIS WAS DONE. THERE HAVE BEEN NO BRAKE PROBLEMS SINCE THAT TIME UNTIL ABOUT 6 WEEKS AGO. THE BOTTOM LINE IS THAT EVEN THOUGH HYUNDAI RECALL NO. 114 WAS ACCOMPLISHED, THE PROBLEM WAS NEVER FULLY CORRECTED. SOME PEOPLE, WHO HAVE ALSO HAD THIS PROBLEM, SAID THAT THE BRAKE FLUID USED WAS CAUSING FAILURE IN THE MASTER BRAKE CYLINDER VALVES. THIS IS OBVIOUSLY A MANUFACTURER'S ERROR, AND HYUNDAI SHOULD BE HELD RESPONSIBLE.

NHTSA ODI #11217559

83,000 miles · Apr 25, 2019
Electrical System

TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHILE DRIVING APPROXIMATELY 10-15 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT STATED THAT THE FAILURE WAS INTERMITTENT. BENTLEY HYUNDAI (LOCATED AT 3805 UNIVERSITY DR, HUNTSVILLE, AL 35816, (256) 713-0505) WAS CONTACTED AND AN APPOINTMENT WAS MADE TO HAVE THE VEHICLE DIAGNOS…

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TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHILE DRIVING APPROXIMATELY 10-15 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT STATED THAT THE FAILURE WAS INTERMITTENT. BENTLEY HYUNDAI (LOCATED AT 3805 UNIVERSITY DR, HUNTSVILLE, AL 35816, (256) 713-0505) WAS CONTACTED AND AN APPOINTMENT WAS MADE TO HAVE THE VEHICLE DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 83,000. THE VIN WAS NOT AVAILABLE.

NHTSA ODI #11203713

49,259 miles · Apr 25, 2019
Power TrainVehicle Speed Control

TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. THE CONTACT STATED THAT THE GEAR SHIFTER DID NOT ENGAGE IN DRIVE AND SEIZED COMPLETELY. THERE WAS NO WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TOWED TO JOHN AMATO HYUNDAI (414-357-8500, LOCATED AT 8301 N 76TH ST, MILWAUKEE, WI 53223) WHERE IT WAS DIAGNOSED THAT THE SHIFTER GEAR W…

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TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. THE CONTACT STATED THAT THE GEAR SHIFTER DID NOT ENGAGE IN DRIVE AND SEIZED COMPLETELY. THERE WAS NO WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TOWED TO JOHN AMATO HYUNDAI (414-357-8500, LOCATED AT 8301 N 76TH ST, MILWAUKEE, WI 53223) WHERE IT WAS DIAGNOSED THAT THE SHIFTER GEAR WAS CORRODED. THE TECHNICIAN CLEANED THE GEAR. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND STATED THAT THERE WAS NO RECALL. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS 49,259. *DT *DT*JB

NHTSA ODI #11203671

Official recalls

2

16V117000 · Visibility:windshield Wiper/washer:motor

Feb 29, 2016

Hyundai Motor America (Hyundai) is recalling certain model year 2012 Genesis vehicles manufactured August 1, 2011, to April 30, 2012, and 2011-2013 Equus vehicles manufactured July 10, 2011, to June 12, 2012. The windshield wiper motor cover seal on the affected vehicles may degrade allowing corrosion on the wiper motor's circuit board. The corrosion can cause intermittent or total loss of wiper function.

Consequence & remedy

Consequence: Inoperative wipers during inclement weather can decrease driver visibility, increasing the risk of a crash.

Remedy: Hyundai will notify owners, and dealers will replace the wiper motor cover and seal, free of charge. The recall began on April 22, 2016. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 140.

13V489000 · Service Brakes, Hydraulic:fluid

Oct 29, 2013

Hyundai is recalling certain model year 2009-2012 Genesis vehicles manufactured April 30, 2008, through March 28, 2012. The vehicles may contain brake fluid which does not protect against corrosion of the Hydraulic Electronic Control Unit (HECU).

Consequence & remedy

Consequence: If the module corrodes, reduced brake effectiveness may result, increasing the risk of a crash.

Remedy: Hyundai will notify owners and instruct them to bring their vehicle to a dealer for service. Hyundai will inspect the HECU module for proper operation, and will replace the modules as necessary. Hyundai will replace the factory brake fluid in those vehicles that have not previously had the factory brake fluid replaced. These repairs will be done free of charge. The recall began on December 24, 2013. Owners may contact Hyundai at 1-800-633-5151 or by email at consumeraffairs@hmausa.com. Hyundai's recall number is 114.

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

1

PE13033 · Brake Hydraulic Control Module Failure

Opened Oct 17, 2013 · Closed Apr 4, 2014

Status: closed (inferred from source dates) · Service Brakes, Hydraulic; Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip; Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module

On October 28, 2013, Hyundai Motor Company (Hyundai) submitted a Defect Information Report (DIR) to NHTSA describing a safety defect in the braking system of approximately 43,500 model year (MY) 2009 through 2012 Hyundai Genesis sedans (NHTSA Recall No. 13V-489).The Hyundai report indicates that the recalled vehicles may contain brake fluid that does not sufficiently inhibit corrosion on the zinc plating of control valve armatures in the Hydraulic Electronic Control Unit (HECU) module. The DIR indicated that, over time, the build-up of corrosion products may affect operation of HECU control valves, resulting in a low/soft brake pedal with reduced brake effectiveness, which may increase the risk of a crash.In October 2011, the HECU supplier notified Hyundai that the brake fluid used in production plants was causing corrosion of valve armatures in the control module.The supplier changed the coating of the valve armatures in late March 2012 to correct the problem in production vehicles.Hyundai's recall includes Genesis vehicles produced prior to the implementation of the HECU change.In March 2013, Hyundai initiated a Service Campaign (TL6) to replace brake fluid in the subject vehicles with brake fluid with better corrosion resistance properties.According to Hyundai's DIR letter, after PE13-033 was opened, the company noted that some of the vehicles serviced in the TL6 campaign subsequently required HECU replacement.This was an indication that internal corrosion had progressed enough to affect valve operation and brake performance, prompting Hyundai to conduct a safety recall.Hyundai's repair procedures for 13V-489 require brake system flushing and replacement in all recalled vehicles with a new fluid containing the necessary corrosion inhibitor.In addition, for vehicles produced prior to June 1, 2010, dealers will perform an inspection procedure to verify that the HECU is functioning properly and replace units that do not meet the test requirements.Hyundai indicated that, based on analysis of claim data, only vehicles produced prior to June 1, 2010 have been in service long enough to require the additional inspection/replacement of the HECU. Analysis of failure data reported to NHTSA and provided by Hyundai in response to ODI's information request letter for PE13-033 identified 756 complaints and 1,683 warranty claims for 30,114 subject vehicles produced prior to June 1, 2010, resulting in a complaint rate of 25.1 incidents per thousand vehicles (IPTV) and a claim rate of 5.6 percent.The MY 2009 vehicles, with the longest exposure times, experienced the highest complaint (33.5 IPTV) and warranty (7.0 percent) rates.For the 45,639 subject vehicles produced after June 1, 2010, ODI identified 13 complaints and 34 warranty claims, resulting in a complaint rate of 0.3 IPTV and a warranty claim rate of 0.1 percent, indicating that the brake fluid corrosion concern had not progressed far enough to result in significant rates of brake system performance symptoms in those vehicles.This investigation is closed.ODI will continue to monitor complaints to evaluate the effectiveness of Hyundai's recall.The VOQs noted in the Failure Report are: 10569231, 10560898, 10560495, 10559360, 10558279, 10558264, 10556964, 10556631, 10556577, 10556322, 10554988, 10554802, 10554122, 10552958, 10551817, 10551157, 10551110, 10551092, 10550791, 10550773, 10550431, 10549750, 10549634, 10549629, 10549567, 10549402, 10549376, 10549270, 10549228, 10549186, 10549021, 10548903, 10548823, 10548791, 10548737, 10548722, 10548716, 10548705, 10546565, 10544803, 10543663, 10542962, 10541959, 10541741, 10538208, 10537934, 10536652, 105354

Additional source detail variants (3)

Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module

On October 28, 2013, Hyundai Motor Company (Hyundai) submitted a Defect Information Report (DIR) to NHTSA describing a safety defect in the braking system of approximately 43,500 model year (MY) 2009 through 2012 Hyundai Genesis sedans (NHTSA Recall No. 13V-489).The Hyundai report indicates that the recalled vehicles may contain brake fluid that does not sufficiently inhibit corrosion on the zinc plating of control valve armatures in the Hydraulic Electronic Control Unit (HECU) module. The DIR indicated that, over time, the build-up of corrosion products may affect operation of HECU control valves, resulting in a low/soft brake pedal with reduced brake effectiveness, which may increase the risk of a crash.In October 2011, the HECU supplier notified Hyundai that the brake fluid used in production plants was causing corrosion of valve armatures in the control module.The supplier changed the coating of the valve armatures in late March 2012 to correct the problem in production vehicles.Hyundai's recall includes Genesis vehicles produced prior to the implementation of the HECU change.In March 2013, Hyundai initiated a Service Campaign (TL6) to replace brake fluid in the subject vehicles with brake fluid with better corrosion resistance properties.According to Hyundai's DIR letter, after PE13-033 was opened, the company noted that some of the vehicles serviced in the TL6 campaign subsequently required HECU replacement.This was an indication that internal corrosion had progressed enough to affect valve operation and brake performance, prompting Hyundai to conduct a safety recall.Hyundai's repair procedures for 13V-489 require brake system flushing and replacement in all recalled vehicles with a new fluid containing the necessary corrosion inhibitor.In addition, for vehicles produced prior to June 1, 2010, dealers will perform an inspection procedure to verify that the HECU is functioning properly and replace units that do not meet the test requirements.Hyundai indicated that, based on analysis of claim data, only vehicles produced prior to June 1, 2010 have been in service long enough to require the additional inspection/replacement of the HECU. Analysis of failure data reported to NHTSA and provided by Hyundai in response to ODI's information request letter for PE13-033 identified 756 complaints and 1,683 warranty claims for 30,114 subject vehicles produced prior to June 1, 2010, resulting in a complaint rate of 25.1 incidents per thousand vehicles (IPTV) and a claim rate of 5.6 percent.The MY 2009 vehicles, with the longest exposure times, experienced the highest complaint (33.5 IPTV) and warranty (7.0 percent) rates.For the 45,639 subject vehicles produced after June 1, 2010, ODI identified 13 complaints and 34 warranty claims, resulting in a complaint rate of 0.3 IPTV and a warranty claim rate of 0.1 percent, indicating that the brake fluid corrosion concern had not progressed far enough to result in significant rates of brake system performance symptoms in those vehicles.This investigation is closed.ODI will continue to monitor complaints to evaluate the effectiveness of Hyundai's recall.The VOQs noted in the Failure Report are: 10569231, 10560898, 10560495, 10559360, 10558279, 10558264, 10556964, 10556631, 10556577, 10556322, 10554988, 10554802, 10554122, 10552958, 10551817, 10551157, 10551110, 10551092, 10550791, 10550773, 10550431, 10549750, 10549634, 10549629, 10549567, 10549402, 10549376, 10549270, 10549228, 10549186, 10549021, 10548903, 10548823, 10548791, 10548737, 10548722, 10548716, 10548705, 10546565, 10544803, 10543663, 10542962, 10541959, 10541741, 10538208, 10537934, 10536652, 105354

Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip

On October 28, 2013, Hyundai Motor Company (Hyundai) submitted a Defect Information Report (DIR) to NHTSA describing a safety defect in the braking system of approximately 43,500 model year (MY) 2009 through 2012 Hyundai Genesis sedans (NHTSA Recall No. 13V-489).The Hyundai report indicates that the recalled vehicles may contain brake fluid that does not sufficiently inhibit corrosion on the zinc plating of control valve armatures in the Hydraulic Electronic Control Unit (HECU) module. The DIR indicated that, over time, the build-up of corrosion products may affect operation of HECU control valves, resulting in a low/soft brake pedal with reduced brake effectiveness, which may increase the risk of a crash.In October 2011, the HECU supplier notified Hyundai that the brake fluid used in production plants was causing corrosion of valve armatures in the control module.The supplier changed the coating of the valve armatures in late March 2012 to correct the problem in production vehicles.Hyundai's recall includes Genesis vehicles produced prior to the implementation of the HECU change.In March 2013, Hyundai initiated a Service Campaign (TL6) to replace brake fluid in the subject vehicles with brake fluid with better corrosion resistance properties.According to Hyundai's DIR letter, after PE13-033 was opened, the company noted that some of the vehicles serviced in the TL6 campaign subsequently required HECU replacement.This was an indication that internal corrosion had progressed enough to affect valve operation and brake performance, prompting Hyundai to conduct a safety recall.Hyundai's repair procedures for 13V-489 require brake system flushing and replacement in all recalled vehicles with a new fluid containing the necessary corrosion inhibitor.In addition, for vehicles produced prior to June 1, 2010, dealers will perform an inspection procedure to verify that the HECU is functioning properly and replace units that do not meet the test requirements.Hyundai indicated that, based on analysis of claim data, only vehicles produced prior to June 1, 2010 have been in service long enough to require the additional inspection/replacement of the HECU. Analysis of failure data reported to NHTSA and provided by Hyundai in response to ODI's information request letter for PE13-033 identified 756 complaints and 1,683 warranty claims for 30,114 subject vehicles produced prior to June 1, 2010, resulting in a complaint rate of 25.1 incidents per thousand vehicles (IPTV) and a claim rate of 5.6 percent.The MY 2009 vehicles, with the longest exposure times, experienced the highest complaint (33.5 IPTV) and warranty (7.0 percent) rates.For the 45,639 subject vehicles produced after June 1, 2010, ODI identified 13 complaints and 34 warranty claims, resulting in a complaint rate of 0.3 IPTV and a warranty claim rate of 0.1 percent, indicating that the brake fluid corrosion concern had not progressed far enough to result in significant rates of brake system performance symptoms in those vehicles.This investigation is closed.ODI will continue to monitor complaints to evaluate the effectiveness of Hyundai's recall.The VOQs noted in the Failure Report are: 10569231, 10560898, 10560495, 10559360, 10558279, 10558264, 10556964, 10556631, 10556577, 10556322, 10554988, 10554802, 10554122, 10552958, 10551817, 10551157, 10551110, 10551092, 10550791, 10550773, 10550431, 10549750, 10549634, 10549629, 10549567, 10549402, 10549376, 10549270, 10549228, 10549186, 10549021, 10548903, 10548823, 10548791, 10548737, 10548722, 10548716, 10548705, 10546565, 10544803, 10543663, 10542962, 10541959, 10541741, 10538208, 10537934, 10536652, 105354

Service Brakes, Hydraulic

On October 28, 2013, Hyundai Motor Company (Hyundai) submitted a Defect Information Report (DIR) to NHTSA describing a safety defect in the braking system of approximately 43,500 model year (MY) 2009 through 2012 Hyundai Genesis sedans (NHTSA Recall No. 13V-489).The Hyundai report indicates that the recalled vehicles may contain brake fluid that does not sufficiently inhibit corrosion on the zinc plating of control valve armatures in the Hydraulic Electronic Control Unit (HECU) module. The DIR indicated that, over time, the build-up of corrosion products may affect operation of HECU control valves, resulting in a low/soft brake pedal with reduced brake effectiveness, which may increase the risk of a crash.In October 2011, the HECU supplier notified Hyundai that the brake fluid used in production plants was causing corrosion of valve armatures in the control module.The supplier changed the coating of the valve armatures in late March 2012 to correct the problem in production vehicles.Hyundai's recall includes Genesis vehicles produced prior to the implementation of the HECU change.In March 2013, Hyundai initiated a Service Campaign (TL6) to replace brake fluid in the subject vehicles with brake fluid with better corrosion resistance properties.According to Hyundai's DIR letter, after PE13-033 was opened, the company noted that some of the vehicles serviced in the TL6 campaign subsequently required HECU replacement.This was an indication that internal corrosion had progressed enough to affect valve operation and brake performance, prompting Hyundai to conduct a safety recall.Hyundai's repair procedures for 13V-489 require brake system flushing and replacement in all recalled vehicles with a new fluid containing the necessary corrosion inhibitor.In addition, for vehicles produced prior to June 1, 2010, dealers will perform an inspection procedure to verify that the HECU is functioning properly and replace units that do not meet the test requirements.Hyundai indicated that, based on analysis of claim data, only vehicles produced prior to June 1, 2010 have been in service long enough to require the additional inspection/replacement of the HECU. Analysis of failure data reported to NHTSA and provided by Hyundai in response to ODI's information request letter for PE13-033 identified 756 complaints and 1,683 warranty claims for 30,114 subject vehicles produced prior to June 1, 2010, resulting in a complaint rate of 25.1 incidents per thousand vehicles (IPTV) and a claim rate of 5.6 percent.The MY 2009 vehicles, with the longest exposure times, experienced the highest complaint (33.5 IPTV) and warranty (7.0 percent) rates.For the 45,639 subject vehicles produced after June 1, 2010, ODI identified 13 complaints and 34 warranty claims, resulting in a complaint rate of 0.3 IPTV and a warranty claim rate of 0.1 percent, indicating that the brake fluid corrosion concern had not progressed far enough to result in significant rates of brake system performance symptoms in those vehicles.This investigation is closed.ODI will continue to monitor complaints to evaluate the effectiveness of Hyundai's recall.The VOQs noted in the Failure Report are: 10569231, 10560898, 10560495, 10559360, 10558279, 10558264, 10556964, 10556631, 10556577, 10556322, 10554988, 10554802, 10554122, 10552958, 10551817, 10551157, 10551110, 10551092, 10550791, 10550773, 10550431, 10549750, 10549634, 10549629, 10549567, 10549402, 10549376, 10549270, 10549228, 10549186, 10549021, 10548903, 10548823, 10548791, 10548737, 10548722, 10548716, 10548705, 10546565, 10544803, 10543663, 10542962, 10541959, 10541741, 10538208, 10537934, 10536652, 105354