IllustrationSOMETIME THE TRANSMISSION SHIFT VERY HARD WHILE DRIVING,IT HAS A WILD UNEXPECTED JERK
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 →How this year compares
Owner complaints by model year
Compare all Genesis years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
340–25K
5925–50K
5350–75K
4375–100K
13100–150K
8150K+
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 reports2012 GENESIS SEDAN CONSISTENTLY STALLS UNDER MEDIUM TO LOW SPEEDS WHILE BRAKING OR MAKING A TURN. ALL WARNING LIGHTS COME ON AND LOSS OF STEERING AND BRAKING OCCURS. CAR IS DIFFICULT TO CONTROL SAFELY WITHOUT USE OF EMERGENCY BRAKE DUE TO THE LOSS OF STEERING/BRAKING. THIS INCIDENT NOW OCCURS WITH EACH CAR TRIP WHILE TRAVELING O…
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2012 GENESIS SEDAN CONSISTENTLY STALLS UNDER MEDIUM TO LOW SPEEDS WHILE BRAKING OR MAKING A TURN. ALL WARNING LIGHTS COME ON AND LOSS OF STEERING AND BRAKING OCCURS. CAR IS DIFFICULT TO CONTROL SAFELY WITHOUT USE OF EMERGENCY BRAKE DUE TO THE LOSS OF STEERING/BRAKING. THIS INCIDENT NOW OCCURS WITH EACH CAR TRIP WHILE TRAVELING ON ALL KINDS OR ROADS AND AT VARIOUS SPEEDS BUT NOT MORE THAN 40 MILES AN HOUR. I AM WORRIED FOR THE SAFETY OF MY WIFE AND 3 YEAR OLD CHILD SINCE I TAKE THEM EVERYWHERE WITH ME. CAR HAS BEEN AT HYUNDAI DEALERSHIP FOR 4 DAYS AND THEY CAN NOT DIAGNOSE THE PROBLEM BECAUSE THERE ARE NO FAULT CODES TO LOOK UP.
CAR TURNED OFF BY ITSELF WHILE DRIVING. STEERING AND BRAKING WERE AFFECTED AND NOT WORKING.
MY WINDSHIELD WIPERS DO NOT CLEAR THE WINDSHIELD PROPERLY IN INCLEMENT WEATHER, MY BRAKES SOMETIMES MAKE SCRUBBING SOUNDS, MY TIRES SEEM SLIPPERY SOMETIMES WHEN TURNING A CURVE, AND MY CAR JERKS SOMETIMES WHEN PULLING OFF AFTER SITTING STILL.
EMERGENCY PARKING BRAKE SUDDENLY ACTIVATES WITHOUT TOUCHING ANY CONTROLS. EPB LIGHT APPEARS ON THE DASHBOARD. WHEN CAR IS PLACED IN PARK, EPB LIGHT GOES OFF BUT EPB IS STILL ENGAGED. EPB LIGHT REAPPEARS WHEN CAR IS PLACED IN DRIVE AND EPB IS STILL ENGAGED. TURNING OFF ENGINE AND RESTARTING DOES NOT SOLVE THE PROBLEM. ONLY W…
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EMERGENCY PARKING BRAKE SUDDENLY ACTIVATES WITHOUT TOUCHING ANY CONTROLS. EPB LIGHT APPEARS ON THE DASHBOARD. WHEN CAR IS PLACED IN PARK, EPB LIGHT GOES OFF BUT EPB IS STILL ENGAGED. EPB LIGHT REAPPEARS WHEN CAR IS PLACED IN DRIVE AND EPB IS STILL ENGAGED. TURNING OFF ENGINE AND RESTARTING DOES NOT SOLVE THE PROBLEM. ONLY WAY TO SOLVE THE PROBLEM IS TO PLACE THE TRANSMISSION IN DRIVE AND FLOOR THE ACCELERATOR. EPB MAKES LOUD NOISE AND THERE IS SIGNIFICANT RESISTANCE FROM THE EPB BUT THE EPB FINALLY DISENGAGES AND CAR DRIVES NORMALLY. SMELL IS PRESENT FROM THE EPB SYSTEM AND RESULTANT EXAMINATION OF SYSTEM SHOWS FLAKING OF PAD FROM HEAT CAUSED BY PROCEDURE. DEALER HAS BEEN INFORMED OF PROBLEM SINCE 2013 BUT SAYS IT CAN DO NOTHING BECAUSE IT CANNOT REPLICATE THE PROBLEM. DIAGNOSTIC SHOWS THREE CODES DEALING WITH EPB SYSTEM BUT DEALER SAYS CODES ARE "GENERAL" IN NATURE AND DO NOT PINPOINT THE PROBLEM. SAYS NOTHING CAN BE DONE UNTIL PROBLEM IS REPLICATED IN PRESENCE OF DEALER. FAILURE HAS THUS FAR ONLY OCCURRED WHEN VEHICLE IS STOPPED BUT MY FEAR IS THAT IT WILL HAPPEN WHEN THE VEHICLE IS MOVING. PUTTING PRESSURE ON THE BRAKE PEDAL AND ATTEMPTING TO DISENGAGE THE EPB USING THE EPB TAB FOR "ENGAGE/DISENGAGE" DOES NOT WORK. DATE GIVEN BELOW IS THE LATEST OCCURRENCE. PROBLEM HAS EXISTED ON AND OFF FOR MORE THAN THREE YEARS. PROBLEM OCCURS RANDOMLY AND INTERMEDIATELY. VEHICLE LEFT WITH DEALER ON THREE SEPARATE OCCASIONS BUT DEALER COULD NOT GET PROBLEM TO OCCUR AND WILL NOT MAKE REPAIRS BECAUSE OF THIS.
TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHILE AT A STOP LIGHT, THE VEHICLE SUDDENLY EXPERIENCED UNINTENDED ACCELERATION. DURING THE INCIDENT, THE BRAKES MALFUNCTIONED AND WOULD NOT IMMEDIATELY STOP THE VEHICLE WHEN THE BRAKE PEDAL WAS DEPRESSED. MOMENTS LATER, THE ENGINE BACKFIRED AND THE CHECK ENGINE INDICATOR ILLUMINATED.…
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TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHILE AT A STOP LIGHT, THE VEHICLE SUDDENLY EXPERIENCED UNINTENDED ACCELERATION. DURING THE INCIDENT, THE BRAKES MALFUNCTIONED AND WOULD NOT IMMEDIATELY STOP THE VEHICLE WHEN THE BRAKE PEDAL WAS DEPRESSED. MOMENTS LATER, THE ENGINE BACKFIRED AND THE CHECK ENGINE INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER (HYUNDAI OF COCONUT CREEK IN COCONUT CREEK, FL) WHERE IT WAS DIAGNOSED THAT THE ENGINE VALVE WAS FAULTY AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED. THE VEHICLE WAS TAKEN BACK TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE TRANSMISSION WAS FAULTY AND NEED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE, BUT NO ASSISTANCE WAS OFFERED. THE FAILURE MILEAGE WAS 65,000.
TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHILE ATTEMPTING TO MAKE A RIGHT TURN AT 5 MPH, THE VEHICLE STALLED AND CAUSED THE POWER STEERING TO SEIZE. THE BRAKES FAILED AND THE BATTERY AND CHECK ENGINE WARNING INDICATORS ILLUMINATED. THE FAILURE OCCURRED TWO ADDITIONAL TIMES. DURING THE LAST OCCURRENCE, THE VEHICLE WAS PUSHED …
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TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHILE ATTEMPTING TO MAKE A RIGHT TURN AT 5 MPH, THE VEHICLE STALLED AND CAUSED THE POWER STEERING TO SEIZE. THE BRAKES FAILED AND THE BATTERY AND CHECK ENGINE WARNING INDICATORS ILLUMINATED. THE FAILURE OCCURRED TWO ADDITIONAL TIMES. DURING THE LAST OCCURRENCE, THE VEHICLE WAS PUSHED TO A PARKING LOT. A TOW COMPANY WAS CALLED, BUT THE VEHICLE RESTARTED ON ITS OWN. THE VEHICLE WAS NOT TOWED, AND WAS DRIVEN BACK HOME. THE LOCAL DEALER AND MANUFACTURER WERE NOT CONTACTED. THE FAILURE MILEAGE WAS APPROXIMATELY 65,000.
ENGINE SHUTDOWN AND LOST STEERING AND BRAKE CONTROL WHEN MAKING A RIGHT TURN. THIS IS THE 2ND TIME THIS HAS HAPPENED. DETAILS: ON BOTH THE TIMES, WHEN I WAS TRYING TO MAKE A RIGHT TURN AT A SLOW SPEED THE ENGINE SHUT DOWN AND I LOST CONTROL OF STEERING WAS WELL AS BRAKES. I HAD TO PUT THE CAR IN PARK, IN THE MIDDLE OF THE INTER…
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ENGINE SHUTDOWN AND LOST STEERING AND BRAKE CONTROL WHEN MAKING A RIGHT TURN. THIS IS THE 2ND TIME THIS HAS HAPPENED. DETAILS: ON BOTH THE TIMES, WHEN I WAS TRYING TO MAKE A RIGHT TURN AT A SLOW SPEED THE ENGINE SHUT DOWN AND I LOST CONTROL OF STEERING WAS WELL AS BRAKES. I HAD TO PUT THE CAR IN PARK, IN THE MIDDLE OF THE INTERSECTION AND PUSH BUTTON TO START THE CAR AGAIN. LUCKILY THERE WAS NOTHING IN THE WAY (CAR OR A PEDESTRIAN), OR ELSE THERE WOULD HAVE BEEN AN ACCIDENT. THIS COULD BE AN EVEN DANGEROUS ISSUE IF THIS HAPPENS WHEN MAKING A LEFT TURN OR WHEN ON A FREEWAY. PLEASE ISSUE A RECALL FOR THIS, AND HAVE HYUNDAI FIX THIS PROBLEM.
BRAKES WENT SOFT AFTER A FEW MINUTES OF DRIVING. NORMAL BRAKING THROUGH SEVERAL STOP AND GO INTERSECTIONS. THEN A SUDDEN UNEXPECTED CHANGE WHICH RESULTED IN PRESSING PEDAL TO THE FLOOR AND THE BRAKES BARELY SLOWED THE CAR. TURNING THE CAR OFF AND BACK ON RESTORED BRAKING TO NORMAL USE.
TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHILE DRIVING 20 MPH, THE BRAKE PEDAL WAS DEPRESSED, BUT THE VEHICLE FAILED TO COME TO A COMPLETE HALT. THE CONTACT HAD TO PUMP THE BRAKE PEDAL MULTIPLE TIMES IN ORDER TO STOP THE VEHICLE. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUF…
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TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. WHILE DRIVING 20 MPH, THE BRAKE PEDAL WAS DEPRESSED, BUT THE VEHICLE FAILED TO COME TO A COMPLETE HALT. THE CONTACT HAD TO PUMP THE BRAKE PEDAL MULTIPLE TIMES IN ORDER TO STOP THE VEHICLE. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE CONTACT WAS AWARE OF NHTSA CAMPAIGN NUMBER: 13V489000 (SERVICE BRAKES, HYDRAULIC), BUT THE VIN WAS NOT INCLUDED. THE FAILURE MILEAGE WAS 64,000.
Official recalls
216V117000 · 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
1PE13033 · 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