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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.

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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

Service Brakes complaints

28 reports
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Mileage unknown · Jul 8, 2026
Service Brakes

Brake pedal has been intermittently low/spongy and has progressively gotten worse. During these events, the brake pedal goes nearly to the floorboard, and braking power is weak but will typically function after pumping the pedal repeatedly. Stopping or slowing in an emergency situation may not be possible. There is no manual eme…

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Brake pedal has been intermittently low/spongy and has progressively gotten worse. During these events, the brake pedal goes nearly to the floorboard, and braking power is weak but will typically function after pumping the pedal repeatedly. Stopping or slowing in an emergency situation may not be possible. There is no manual emergency brake. No trouble codes found, and no warning lamps illuminated related to the braking system. Dealer diagnosed faulty antilock braking system (ABS) hydraulic electronic control unit (HECU). This exact defect is addressed in Warranty Extension TXXP: Hydraulic Electronic Control Unit (HECU) [XXX] Hyundai rejected this under the warranty coverage because the vehicle build date is approximately 2 weeks beyond the date range in the TSB. Subsequent web searches revealed replacement parts were available for production in late XXX. The TSB's affected date range ends on XXX. This vehicle was produced on XXX and was not included in the recall notifications. It is not known if a complete stock purge was performed on the production line or if parts were continued to be installed until old stock was depleted. Other vehicles outside of the TSB stated production date range may also have this latent critical safety defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI #11749208

Mileage unknown · Feb 6, 2026
Service Brakes

I am submitting this letter as a formal safety defect complaint regarding my 2012 Hyundai Genesis 5.0 sedan, which is experiencing braking system behavior that directly mirrors the defect described in Hyundai Recall Campaign 114 (NHTSA Campaign 13V489000), despite my vehicle not being included by VIN. Although excluded by VIN, t…

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I am submitting this letter as a formal safety defect complaint regarding my 2012 Hyundai Genesis 5.0 sedan, which is experiencing braking system behavior that directly mirrors the defect described in Hyundai Recall Campaign 114 (NHTSA Campaign 13V489000), despite my vehicle not being included by VIN. Although excluded by VIN, the functional failure mode matches recalled vehicles, indicating the defect population may extend beyond the original VIN range. The vehicle exhibits the following symptoms: 1.Excessive and inconsistent brake pedal travel 2. Soft and spongy brake pedal feel 3. Highly variable brake biting point 4. Requirement to pump the brake pedal to obtain normal braking 5. Unpredictable brake engagement during normal driving These symptoms are intermittent and occur without warning, significantly increasing stopping distance and reducing driver confidence. The behavior is consistent with internal hydraulic or HECU malfunction, which the original recall attributes to corrosion caused by improper brake fluid formulation. I am particularly concerned because I am a disabled driver, and any reduction in braking reliability presents an elevated safety risk. Unpredictable brake response materially affects my ability to operate the vehicle safely and to respond to emergency conditions. While Hyundai has limited the recall to certain VIN ranges, Model Years Affected: 2009–2012 Hyundai Genesis sedans built April 30, 2008 – March 28, 2012. The braking behavior is functionally identical to recalled vehicles. This suggests the defect may not be limited to the originally identified production range and warrants further investigation. I respectfully request that NHTSA: 1. Review this complaint in the context of the existing recall 2. Evaluate whether the defect population should be expanded 3. Initiate further inquiry into VIN-excluded vehicles exhibiting identical symptoms 4. This issue represents a clear safety concern with potential for serious injury

NHTSA ODI #11716198

Mileage unknown · Jan 31, 2026
Service Brakes

Brake line on driver rear rusted and leaking above brake hose. Cannot drive vehicle safely with this leak. Would leak brake fluid each time I step on brake pedal. Problem magnified when car is on and brake booster is working. Vehicle not at dealer or mechanic yet, but link to video of driver rear brake line leaking on 1-31-2026…

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Brake line on driver rear rusted and leaking above brake hose. Cannot drive vehicle safely with this leak. Would leak brake fluid each time I step on brake pedal. Problem magnified when car is on and brake booster is working. Vehicle not at dealer or mechanic yet, but link to video of driver rear brake line leaking on 1-31-2026: [XXX] Service Campaign 991 [XXX] ) was completed less than two years ago on Feb 19, 2024 (today is 1/31/2026). See note about "dealer will apply an anti-corrosion treatment to certain parts, and *replace the brake lines if necessary*" Not told about any rust, nor any parts replaced. Link to service campaign quote: [XXX] No warning lamps, messages, or symptoms of the problem. Assumed wheel liner covered brake line from salt. Vehicle is located in [XXX] and I suspect other brake lines are also rusted out. Would like manufacturer to replace all brake lines under warranty. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI #11714723

Mileage unknown · Mar 10, 2024
Electrical SystemEngineService Brakes

recall from 2014 under Hyundai genesis BH over brake corrosion and leading to HECU /electrical / wheel stability/electrical wire problems /fire Also immobilizer and safety I now have no dash or steering wheel controls Believe car was broken into shows signs of elapsed time/fob and controls inside no longer work Two fuses…

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recall from 2014 under Hyundai genesis BH over brake corrosion and leading to HECU /electrical / wheel stability/electrical wire problems /fire Also immobilizer and safety I now have no dash or steering wheel controls Believe car was broken into shows signs of elapsed time/fob and controls inside no longer work Two fuses inside driver side panel spark even when car is not on Took to Springfield Hyundai They not only lied and stated my car isn’t under any recall but they stated online they did a safety inspection which is not true I just replaced rear brakes and after barely driving 1,000 miles the brakes are making a wearing metal noise and sound like they are bad again I even stated I had information for the immobilizer since Hyundai didn’t install on any of their vehicles until 2022 Now I enter my vin and it comes up under the 2 door coupe not the sedan (BH) Also found archived article from car and driver about the FBI suing Hyundai in 2014 over the exact model and make 2012 Hyundai Genesis BH over brake corrosion accidents and HECU issues causing accidents and other electrical issues Now I am scared worried and I am being ignored an neglected Driving a car that clearly is not safe and putting my life in danger if I have a tampered VIN from theft of no immobilizer this is Hyundai negligence and now my VIN isn’t showing correctly for my make and model I NEED help I have videos of fuses sparking and printed recall Info for my make and model under NHTSA safety investigations I have NEVER received one recall notice from Hyundai in the mail since I am the owner since 2019 I also show DMV records of many registration transactions for years I owned vehicle I only get one registration per year Some shows 2 & 3 prior owner of vehicle worked for a car dealership in Woodbury Even Vehicle History reports aren’t correct

NHTSA ODI #11576484

Mileage unknown · Aug 29, 2023
Service Brakes

Brakes are spongy/soft - My car has been inspected by a Hyundai dealership and an ABS control module replacement has been recommended at cost of $2901. A safety recall campaign was issued in 2012 to include "certain 2009-2012MY Genesis (BH) produced from April 30, 2008 to March 28, 2012 (Recall #114). On May 9, 2022, TSB #22-B…

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Brakes are spongy/soft - My car has been inspected by a Hyundai dealership and an ABS control module replacement has been recommended at cost of $2901. A safety recall campaign was issued in 2012 to include "certain 2009-2012MY Genesis (BH) produced from April 30, 2008 to March 28, 2012 (Recall #114). On May 9, 2022, TSB #22-BR-001H-1 was issued. My car's VIN indicates that my car was produced March 30, 2012 and the repair under the "extended warranty" has been denied because my car was produced two days later and therefore not included in the safety recall. I have reached out to Hyundai and I have a case manager assigned to me.

NHTSA ODI #11541373

Mileage unknown · Sep 13, 2022
Service Brakes

ECBM Electronic Control Brake Module malfunctioned at 78,500 miles and dealer could not fix because computer would not read anything. Cold have caused a serious accident if it had happened when driving.

NHTSA ODI #11484208

25,000 miles · Sep 1, 2022
Power TrainService Brakes

The contact owns a 2012 Hyundai Genesis. The contact stated that vehicle was taken to the dealer to be serviced under NHTSA Campaign Number: 13V489000 (Service Brakes, Hydraulic) however, days later the contact stated that while driving the brake pedal was depressed and felt spongy while the vehicle was coming to a stop. The veh…

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The contact owns a 2012 Hyundai Genesis. The contact stated that vehicle was taken to the dealer to be serviced under NHTSA Campaign Number: 13V489000 (Service Brakes, Hydraulic) however, days later the contact stated that while driving the brake pedal was depressed and felt spongy while the vehicle was coming to a stop. The vehicle was taken back to the dealer where the brake rotors were replaced on the vehicle. The contact stated that failure reoccurred approximately 25,000 miles later; however, the vehicle was not taken back to dealer for diagnosis to be repaired. The contact stated that at 35,666 miles, the vehicle was taken back to the dealer where he was informed that the front brakes needed to be replaced. Additionally, an abnormal noise was heard coming from the transmission. The contact was informed that the transmission needed to be replaced. The transmission and front brakes were replaced. The contact stated that while parking the vehicle after picking it up from the dealer, he heard a popping sound. The vehicle was taken back to the dealer where he was informed to reinstall the old transmission. The transmission was replaced; however, the failure persisted. The manufacturer was notified and case was opened. The approximate failure mileage was 25,000.

NHTSA ODI #11482397

Mileage unknown · Sep 8, 2021
Service Brakes

if the brakes are hit hard and ABS engages, the pedal immediately goes soft and stays soft braking is impared bu 50% until the ABS module resets itself randomly but only after parking the car for a while. this has happened 2X to my car and there are multiple reports on the genesis forums about the exact same issue

NHTSA ODI #11432094

Mileage unknown · May 15, 2021
Electrical SystemForward Collision AvoidanceService Brakes

WHILE IN ROUTE TO THE DEALER FOR ONE ISSUE, MY SMART CRUISE LIGHT CAME ON. I REPORTED THIS TO THE DEALER UPON ARRIVAL AND THEY IGNORED. THEY REPAIRED ONE ITEM UNDER WARRANTY IN WHICH I THOUGH TOOK CARE OF BOTH. BY TIME I LEFT, ALLOWED THE CAR TO WARM UP; THE SMART CRUISE LIGHT CAME BACK ON. I CONTACTED THE DEALERSHIP & ASKED TH…

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WHILE IN ROUTE TO THE DEALER FOR ONE ISSUE, MY SMART CRUISE LIGHT CAME ON. I REPORTED THIS TO THE DEALER UPON ARRIVAL AND THEY IGNORED. THEY REPAIRED ONE ITEM UNDER WARRANTY IN WHICH I THOUGH TOOK CARE OF BOTH. BY TIME I LEFT, ALLOWED THE CAR TO WARM UP; THE SMART CRUISE LIGHT CAME BACK ON. I CONTACTED THE DEALERSHIP & ASKED THEM WHAT HAPPENED TO THIS 2ND ISSUE. THEY SCHEDULED AN APPOINTMENT AND I WAS INFORMED BY THAT TIME AND VISIT; THE WARRANTY HAD EXPIRED AND I WILL HAVE TO PAY $4200 TO REPAIR THE PROBLEM THAT THEY NOW SEE. I HAD ALSO BEEN COMPLAINING ABOUT MY ABS/ESC/AUTO HOLD LIGHTS WERE CONSTANTLY FLASHING, NOW THEY REMAIN SOLID. IT CAUSES THE VEHICLE TO JERK WHEN IN REVERSE. I HAVE READ ABOUT SEVERAL RECALLS REGARDING ISSUE. THE SITUATION HAS GOTTEN WORSE AND I WAS TOLD IT IS NOW LEAKING BRAKE FLUID. THE DEALERSHIP HAS NOW GIVEN ME A PRICE TOTALING $7000 TO REPAIR OR PURCHASE A NEW VEHICLE. THIS IS MONEY I CANNOT PAY AND I KNOW MY VEHICLE WAS STILL COVERED WHEN THE PROBLEMS/ RECALLS STARTED. THESE INCIDENTS OCCURRED ON SEVERAL DATES.

NHTSA ODI #11416665

129,000 miles · Nov 20, 2018
Parking BrakeService Brakes

TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHILE THE CONTACT WAS ATTEMPTING TO PLACE THE VEHICLE IN DRIVE AND RELEASE THE PARKING BRAKE, THE VEHICLE MADE A LOUD ABNORMAL NOISE. THE VEHICLE WAS TOWED TO SPORT DURST HYUNDAI (4507 DURHAM-CHAPEL HILL BLVD, DURHAM, NC 27707 (919) 251-5996) WHERE THE CONTACT WAS INFORMED THAT THE MO…

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TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHILE THE CONTACT WAS ATTEMPTING TO PLACE THE VEHICLE IN DRIVE AND RELEASE THE PARKING BRAKE, THE VEHICLE MADE A LOUD ABNORMAL NOISE. THE VEHICLE WAS TOWED TO SPORT DURST HYUNDAI (4507 DURHAM-CHAPEL HILL BLVD, DURHAM, NC 27707 (919) 251-5996) WHERE THE CONTACT WAS INFORMED THAT THE MOTOR FOR THE ELECTRONIC PARKING BRAKE NEEDED TO BE REPLACED AND THE BRAKES WERE FAULTY. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 129,000.

NHTSA ODI #11152961

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