IllustrationI WAS TRYING TO TURN LEFT ONTO A CROSS STREET AND AS SOON AS I GOT MOVING THE CAR LOST POWER FOR A FEW SECONDS THAT STARTED GOING AGAIN...THIS AS HAPPEN 4 OR 5 TIMES AND I ONLY OWNED THIS CAR FOR 3 WEEKS. HYUNDAI CAN'T DUPLICATE THIS HAPPENING....ITS ON THE HYUNDAI FORUMS AND THEY SENT ME HERE. *TR
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
Power Train complaints
39 reportsI HAD THIS VERIFIED SCENARIO BY THE LOCAL HYUNDAI TECHNICIAN WHILE HE HAD THE COMPUTER HOOKED TO MY CAR AND I CONSISTENTLY DUPLICATED THE PROBLEM. WHILE QUICKLY DECELERATING FROM 25-20 MPH TO UNDER 5MPH THE TRANSMISSION DELAYS THE SHIFT FROM 3RD OR 4TH GEAR DIRECTLY TO 1ST GEAR BY 2-4 SECONDS WITHOUT ANY POWER. WHEN IMMEDIATE …
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I HAD THIS VERIFIED SCENARIO BY THE LOCAL HYUNDAI TECHNICIAN WHILE HE HAD THE COMPUTER HOOKED TO MY CAR AND I CONSISTENTLY DUPLICATED THE PROBLEM. WHILE QUICKLY DECELERATING FROM 25-20 MPH TO UNDER 5MPH THE TRANSMISSION DELAYS THE SHIFT FROM 3RD OR 4TH GEAR DIRECTLY TO 1ST GEAR BY 2-4 SECONDS WITHOUT ANY POWER. WHEN IMMEDIATE POWER IS NEEDED THE DELAY CAUSES ME TO GIVE IT MORE GAS IN HOPES OF MORE IMMEDIATE RESPONSE. EVENTUALLY THE CAR GIVES SUDDEN ACCELERATION OFTEN TIMES TRIGGERING THE TRACTION CONTROL TO ENGAGE. THIS HAS CAUSED A FEW NEAR MISS ACCIDENTS FOR ME. I BRING IT UP TO THE DEALERSHIP EVERYTIME I HAVE THE CAR SERVICED BUT IT DOESN'T APPEAR HYUNDAI HAS A FIX. I HAVE ALSO SENT IN THIS ISSUE DIRECTLY TO HYUNDAI USA. THE ISSUE IS THE SHIFT PATTERN FROM 3RD OR 4TH DIRECTLY TO 1ST GEAR. IF THE CAR WOULD DOWNSHIFT EVENLY 4,3,2 THEN THE PROPER GEAR WOULD BE ENGAGED WHEN POWER IS NEEDED. *TR
ON 08/02/2014 AT APPROXIMATE 6 P.M., MY 2012 GENESIS R-SPEC 5.0 SEDAN COMPLETELY STALLED OUT AS I WAS COMING TO A STOP AT A MAJOR INTERSECTION. THERE WAS NO WARNING OR INDICATION OF ANY ISSUES UP TO THIS POINT. IT TOOK SEVERAL ATTEMPTS AT STARTING THE VEHICLE BEFORE IT FINALLY STARTED AND CONTINUED UNDER ITS OWN POWER. THIS TYPE…
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ON 08/02/2014 AT APPROXIMATE 6 P.M., MY 2012 GENESIS R-SPEC 5.0 SEDAN COMPLETELY STALLED OUT AS I WAS COMING TO A STOP AT A MAJOR INTERSECTION. THERE WAS NO WARNING OR INDICATION OF ANY ISSUES UP TO THIS POINT. IT TOOK SEVERAL ATTEMPTS AT STARTING THE VEHICLE BEFORE IT FINALLY STARTED AND CONTINUED UNDER ITS OWN POWER. THIS TYPE OF UNEXPLAINED POWER LOSS COULD LEAD TO A VERY SERIOUS ACCIDENT. THE ENGINE WARNING LIGHT IS CURRENTLY NOT INDICATING ANY PROBLEMS SO I DOUBT IF THERE ARE ANY TROUBLE CODES STORED. I HAVE OWNED THE VEHICLE SINCE NEW AND IT HAS ALWAYS BEEN GARAGED AND NEVER IN A ACCIDENT. *TR
THE COMMON DENOMINATOR FOR WHAT I EXPERIENCED HAS BEEN THAT THE CAR IS MOVING SLOWLY, 5-20 MPH (7TH OR 8TH GEAR), AND YOU FLOOR THE ACCELERATOR WHILE CHANGING THE LANE (TO MERGE QUICKLY). ALL THAT HAPPENS FOR 1-2 SECONDS IS THAT THE CAR COASTS AT THE SPEED YOU WERE GOING (ABSOLUTELY NO POWER IS APPLIED TO THE WHEELS), AND YOU SE…
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THE COMMON DENOMINATOR FOR WHAT I EXPERIENCED HAS BEEN THAT THE CAR IS MOVING SLOWLY, 5-20 MPH (7TH OR 8TH GEAR), AND YOU FLOOR THE ACCELERATOR WHILE CHANGING THE LANE (TO MERGE QUICKLY). ALL THAT HAPPENS FOR 1-2 SECONDS IS THAT THE CAR COASTS AT THE SPEED YOU WERE GOING (ABSOLUTELY NO POWER IS APPLIED TO THE WHEELS), AND YOU SEE THE REVS GOING UP AND THE TRANSMISSION SHIFTING TO A LOWER AND LOWER GEAR (BUT NOT SENDING ANY OF THAT POWER TO THE WHEELS), UNTIL IT GETS TO THE 2ND OR 3RD GEAR AND THEN YOUR HEAD SNAPS BACK AS IT ACCELERATES VERY QUICKLY (BUT 2 SECONDS TOO LATE). SO INSTEAD OF THE EXPECTED TAKEOFF YOU GET 2 SECONDS OF COASTING WHILE THE CAR IN THE LANE THAT YOU GOT INTO IS GETTING UNCOMFORTABLY CLOSE AND HAS TO BRAKE TO PREVENT AN ACCIDENT. THIS IS EXTREMELY DANGEROUS AND UNEXPECTED. *TR
THE VEHICLE ACCELERATED WITHOUT THE GAS PEDAL HAVING A FORCE APPLIED THERETO AND WITH THE BRAKE PEDAL BEING DEPRESSED. ONCE THE AUTOMATIC TRANSMISSION WAS PLACED IN PARK, THE ENGINE OPERATED AT OVER 3,000 RPM WITHOUT THE GAS PEDAL BEING DEPRESSED. ONCE THE ENGINE IS TURNED OFF AND RESTARTED THE VEHICLE OPERATES NORMALLY FOR A …
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THE VEHICLE ACCELERATED WITHOUT THE GAS PEDAL HAVING A FORCE APPLIED THERETO AND WITH THE BRAKE PEDAL BEING DEPRESSED. ONCE THE AUTOMATIC TRANSMISSION WAS PLACED IN PARK, THE ENGINE OPERATED AT OVER 3,000 RPM WITHOUT THE GAS PEDAL BEING DEPRESSED. ONCE THE ENGINE IS TURNED OFF AND RESTARTED THE VEHICLE OPERATES NORMALLY FOR A SHORT PERIOD OF TIME. *TR
I WAS DRIVING ON A LOCAL HIGHWAY IN THE CENTER LANE AND THE VEHICLE LOST POWER SUDDENLY. ALL OF THE INDICATORS CAME ON. I HAD TO MUSCLE THE CAR OFF THE ROAD USING MOMENTUM WITH NO POWER STEERING CROSSING LANES OF TRAFFIC. IT WAS A VERY DANGEROUS SITUATION THAT COULD EASILY HAVE CREATED AN ACCIDENT. PREVIOUSLY THE CAR LOST POWER …
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I WAS DRIVING ON A LOCAL HIGHWAY IN THE CENTER LANE AND THE VEHICLE LOST POWER SUDDENLY. ALL OF THE INDICATORS CAME ON. I HAD TO MUSCLE THE CAR OFF THE ROAD USING MOMENTUM WITH NO POWER STEERING CROSSING LANES OF TRAFFIC. IT WAS A VERY DANGEROUS SITUATION THAT COULD EASILY HAVE CREATED AN ACCIDENT. PREVIOUSLY THE CAR LOST POWER AT A LIGHT AND THE NAVIGATION AND BACK UP SCREEN HAS FLICKERED AND TURNED OFF AND THE MUSIC CONTROLS FREEZE. I TOOK THE CAR IN TO THE DEALERSHIP AFTER IT DIED THE FIRST TIME AND THEY REPORTED NO ERROR CODES AND DID NOT REPAIR THE CAR. I IMMEDIATELY TOOK THE CAR IN AFTER IT DIED ON THE HIGHWAY AND THEY ARE AGAIN REPORTING NO ERROR CODES. THIS IS A VERY DANGEROUS SITUATION TO HAVE MY CAR SUDDENLY LOSE POWER WHILE DRIVING. *TR
TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. THE CONTACT STATED THAT WHILE SHIFTING FROM REVERSE TO DRIVE, THE VEHICLE CONTINUED TO DRIVE IN REVERSE. THE VEHICLE WAS RESTARTED AND FUNCTIONED NORMALLY. THE VEHICLE WAS LATER TAKEN TO THE DEALER WHERE THE FAILURE COULD NOT BE REPLICATED. THE MANUFACTURER WAS NOT CONTACTED. THE FAIL…
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TL* THE CONTACT OWNS A 2012 HYUNDAI GENESIS. THE CONTACT STATED THAT WHILE SHIFTING FROM REVERSE TO DRIVE, THE VEHICLE CONTINUED TO DRIVE IN REVERSE. THE VEHICLE WAS RESTARTED AND FUNCTIONED NORMALLY. THE VEHICLE WAS LATER TAKEN TO THE DEALER WHERE THE FAILURE COULD NOT BE REPLICATED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS APPROXIMATELY 90. THE CURRENT MILEAGE WAS APPROXIMATELY 100.
AUTO HOLD TECHNOLOGY FEATURE FAILED AT A STOP LIGHT. WHEN ON, AUTO HOLD ILLUMINATES WHITE, AND GREEN WHEN IT IS ACTIVELY HOLDING THE VEHICLE IN PLACE, WITHOUT THE NEED TO DEPRESS BRAKE PEDAL. ON A STOP LIGHT CAR JERKED FORWARD AND THE AUTO HOLD ILLUMINATION TURNED ORANGE IN COLOR FROM GREEN. AUTO HOLD FEATURE WOULD NOT RESET EVE…
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AUTO HOLD TECHNOLOGY FEATURE FAILED AT A STOP LIGHT. WHEN ON, AUTO HOLD ILLUMINATES WHITE, AND GREEN WHEN IT IS ACTIVELY HOLDING THE VEHICLE IN PLACE, WITHOUT THE NEED TO DEPRESS BRAKE PEDAL. ON A STOP LIGHT CAR JERKED FORWARD AND THE AUTO HOLD ILLUMINATION TURNED ORANGE IN COLOR FROM GREEN. AUTO HOLD FEATURE WOULD NOT RESET EVEN WHEN RESTARTING VEHICLE. DEALERSHIP WAS ABLE TO RESET, CITING A SHORTAGE IN THE AUTO-HOLD UNIT, WITH A REPLACEMENT PART ORDERED. POTENTIALLY DANGEROUS IF THERE WAS ANYONE IN FRONT OF THE VEHICLE AT THE TIME OF FAILURE, AS IT COULD OF RESULTED IN A POTENTIAL INJURY. *TR
VERY BAD KNOCKING WITH MANUAL TRANSMISSION. THIS OCCURRED WHILE CLUTCH PEDAL WAS DISENGAGED AND TRANSMISSION IN NEUTRAL. *JS
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