IllustrationTHERE IS A SPLIT ACROSS MY DASH WERE THE AIR BIG IS I CALL THE MAIN OFFICE AND I WAS TOLD THAT THEY WILL NOT FIX IT.MY CONCERN IS MY FAMILY SAFETY
2010 Hyundai Genesis
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2010 Hyundai Genesis do not stand out strongly from 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
140–25K
2325–50K
1850–75K
1175–100K
8100–150K
3150K+
77 reports with mileage · 11 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.
- Service Brakes. Review the 25 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 14 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Exterior Lighting. Review the 13 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
4 crash reports0 fire reports2 injury reports
What owners actually said
88 reportsBACKGROUND: AM ORIGINAL OWNER OF THIS 2010 HYUNDAI GENESIS THAT WAS PURCHASED JULY 31, 2010 AND THAT CURRENTLY HAS LESS THAN 35,000 MILES ON IT. ISSUE: UNEXPECTEDLY, THE BRAKES BECAME "SQUISHY" (I.E. BRAKE PEDAL DEPRESSED A LONG DISTANCE BEFORE ENGAGING BRAKES). ADVISED BY HYUNDAI DEALER THAT IT IS A FAULTY HECU UNIT AND N…
Read full complaint
BACKGROUND: AM ORIGINAL OWNER OF THIS 2010 HYUNDAI GENESIS THAT WAS PURCHASED JULY 31, 2010 AND THAT CURRENTLY HAS LESS THAN 35,000 MILES ON IT. ISSUE: UNEXPECTEDLY, THE BRAKES BECAME "SQUISHY" (I.E. BRAKE PEDAL DEPRESSED A LONG DISTANCE BEFORE ENGAGING BRAKES). ADVISED BY HYUNDAI DEALER THAT IT IS A FAULTY HECU UNIT AND NEEDS TO BE REPLACED FOR $3,800. NOTE: THE BRAKE FLUID WAS REPLACED IN APRIL 2013 AND THE HECU UNIT WAS SUPPOSEDLY INSPECTED IN JANUARY 2014. I BELIEVE THESE WERE DONE IN RESPONSE TO PRIOR RECALLS. THAT SAID, UPON SOME FURTHER READING ON THE INTERNET, I AM UNDER THE IMPRESSION THAT WHEN THIS PROBLEM WAS PREVIOUSLY IDENTIFIED FOR RECALL, THE RECALL SHOULD HAVE RESULTED IN MY HECU UNIT BEING REPLACED, NOT JUST INSPECTED. I INTEND TO RAISE THIS ISSUE WITH THE HYUNDAI DEALER AND, HOPEFULLY, HYUNDAI WILL STAND BEHIND THE REPLACEMENT OF THE HECU UNIT WITHOUT CHARGING ME.
THE TMPS LIGHT WILL NOT GO OFF. WEST BROAD HYUNDAI DEALERSHIP IN RICHMOND, VA. WANTS TO CHARGE ME TO FIX THE PROBLEM BUT NOT KNOWING WHY IT'S HAPPENING. THEY HAVE RESET IT BU TIT KEEPS COMING BACK ON.
THE AIR BAG SENSOR INDICATOR IS ON AND IT WON'T GO OFF. THE DEALERSHIP AT HYUNDAI WEST BROAD ST IS TELLING ME THAT IT NEEDS A PODS ECU, WHICH COST 3,000.00 AND I TOLD THEM THEIR IS A RECALL ON THE GENESIS COUPE/2010 FOR THE SAME ISSUE AND WHY ISN'T THIS COVER BY HYUNDAI FOR THE GENESIS SEDAN? THEY WILL NOT ACKNOWLEDGE THIS NOR W…
Read full complaint
THE AIR BAG SENSOR INDICATOR IS ON AND IT WON'T GO OFF. THE DEALERSHIP AT HYUNDAI WEST BROAD ST IS TELLING ME THAT IT NEEDS A PODS ECU, WHICH COST 3,000.00 AND I TOLD THEM THEIR IS A RECALL ON THE GENESIS COUPE/2010 FOR THE SAME ISSUE AND WHY ISN'T THIS COVER BY HYUNDAI FOR THE GENESIS SEDAN? THEY WILL NOT ACKNOWLEDGE THIS NOR WILL THEY CALL HYUNDAI AND ASK WHY ISN'T THIS SAME DEFECT COVER FOR THE SEDAN JUST LIKE IT IS FOR THE GENESIS COUPE? WEST BROAD HYUNDAI DEALERSHIP IN RICHMOND, VA. WANTS TO CHARGED ME $3,500.00 TO FIX THIS PROBLEM ON MY CAR SO IT WILL PASS STATE INSPECTION.
PARTIAL LOSS OF BRAKING - WHILE TRAVELING DOWN THE HIGHWAY AT 45 MPH THE VEHICLES IN FRONT OF ME ABRUPTLY SLOWED DOWN REQUIRING ME TO QUICKLY APPLY MY BRAKES. UPON APPLICATION OF MY BRAKES, I STARTED TO SLOW DOWN AND THEN THE BRAKE PEDAL SUDDENLY RELEASED, PROVIDING LIMITED BRAKING. I CONTINUED TO PUSH THE BRAKE PEDAL TOWARDS…
Read full complaint
PARTIAL LOSS OF BRAKING - WHILE TRAVELING DOWN THE HIGHWAY AT 45 MPH THE VEHICLES IN FRONT OF ME ABRUPTLY SLOWED DOWN REQUIRING ME TO QUICKLY APPLY MY BRAKES. UPON APPLICATION OF MY BRAKES, I STARTED TO SLOW DOWN AND THEN THE BRAKE PEDAL SUDDENLY RELEASED, PROVIDING LIMITED BRAKING. I CONTINUED TO PUSH THE BRAKE PEDAL TOWARDS THE FLOOR AND THE VEHICLE CAME TO A STOP BUT IT REQUIRED A LONGER STOPPING DISTANCE THAN NORMAL.*BF UPDATED 9/28/18*JB
BREAKS FAILED. TAKING EXIT FROM HIGHWAY AND THE CAR WOULDN'T STOP AS THE BREAKS WOULD WORK. WAS VERY FORTUNATE TO HAVE FOUND GAP BETWEEN TWO LANES AND AVOIDED A MAJOR ACCIDENT. DEALER CONFIRMED THE BREAKS FAILED AND THERE HAVE BEEN NUMEROUS BREAK FAILURES REPORTED WITH GENESSIS. HAD RECENTLY GOT BREAKS CHECKED AND WAS TOLD 'EVER…
Read full complaint
BREAKS FAILED. TAKING EXIT FROM HIGHWAY AND THE CAR WOULDN'T STOP AS THE BREAKS WOULD WORK. WAS VERY FORTUNATE TO HAVE FOUND GAP BETWEEN TWO LANES AND AVOIDED A MAJOR ACCIDENT. DEALER CONFIRMED THE BREAKS FAILED AND THERE HAVE BEEN NUMEROUS BREAK FAILURES REPORTED WITH GENESSIS. HAD RECENTLY GOT BREAKS CHECKED AND WAS TOLD 'EVERY THING IS FINE'. QUESTION IS WHY DIDN'T HYUNDAI DO A RECALL AND PROACTIVELY REPLACE MY BREAK SYSTEM? ONE WHOLE DAY OF SUSPENSE ABOUT HOW MUCH IT WILL COST ME... AND I WAS TOLD HYUNDAI WOULD COVER THE COST OF REPLACEMENT AS IT WAS A KNOWN PROBLEM. DEALER CALLED IT 'GOODWILL WARRANTY'.
I HAVE COMPLAINED AT LEAST 2 OR 3 TIMES CONCERNING A SUDDEN ACCELERATION FROM THE STOP POSITION. THE ENGINE REVS UP AND THE CAR TAKES OFF WITHOUT MY DOING IT. I'VE REPORTED THIS IN 2014, AND 2016 - NOW I SEE THERE'S A RECALL FOR THE TRANSMISSION BUT MY CAR ISN'T ONE OF THEM? REALLY...
ATTEMPTED TO REDUCE SPEED TO ENTER NEIGHBORHOOD STREET AND BRAKE PEDAL WENT TO FLOOR. CONTINUED PRESSURE STOPPED THE VEHICLE. BRAKES COULD BE PUMPED UP AND CONTINUED TO STOP THE VEHICLE, BUT WITH SERIOUSLY DEGRADED BRAKING CAPABILITY. AN ACCIDENT WAITING TO HAPPEN.
THE BRAKES MALFUNCTIONED WHILE DRIVING ON A LOCAL ROAD. STEPPED ON THE BRAKE PEDAL, FELT NORMAL AT FIRST, THEN PEDAL GAVE WAY ALMOST TO THE FLOOR AND BRAKING POWER WAS VERY LITTLE. PUMPING THE BRAKE PEDAL RECOVERED SOME BRAKE POWER ONLY TEMPORARILY. PULLED OVER AND SHUT DOWN THE CAR. ABOUT AN HOUR LATER, RESTARTED THE CAR AN…
Read full complaint
THE BRAKES MALFUNCTIONED WHILE DRIVING ON A LOCAL ROAD. STEPPED ON THE BRAKE PEDAL, FELT NORMAL AT FIRST, THEN PEDAL GAVE WAY ALMOST TO THE FLOOR AND BRAKING POWER WAS VERY LITTLE. PUMPING THE BRAKE PEDAL RECOVERED SOME BRAKE POWER ONLY TEMPORARILY. PULLED OVER AND SHUT DOWN THE CAR. ABOUT AN HOUR LATER, RESTARTED THE CAR AND THE BRAKES WERE STILL POOR. BROUGHT THE CAR TO THE DEALER WHO COULD NOT WORK ON IT UNTIL THE NEXT DAY. THE NEXT DAY THE DEALER FOUND NO PROBLEMS WITH THE BRAKES AND I REFUSED TO TAKE BACK THE CAR UNTIL SOMETHING WAS DONE. THE DEALER KEPT THE CAR ABOUT SIX WEEKS AND ROAD TESTED IT ALMOST EVERY DAY BUT COULD NOT PROVOKE THE PROBLEM TO RETURN. I ASKED THE DEALER TO REPLACE ANY OR ALL PARTS THAT COULD BE THE CAUSE OF THE PROBLEM. THE DEALER REFUSED TO DO SUCH A THING AND ALSO STATED THAT THERE WAS NO WAY FOR HYUNDAI TO DIAGNOSE THE TROUBLE. THEY RELIED ON ONLY THE ELECTRONIC SENSORS AND SINCE THERE WERE NO FAULT CODES THEY WOULD NOT TAKE ANY LIABILITY TO REPLACE PARTS ON A PRESUMPTIVE BASIS. I CONSIDERED THE CAR UNTRUSTWORTHY AND SAID IT SHOULD NOT BE DRIVEN. I TRADED THE CAR IN AT THE SAME DEALER FOR ANOTHER CAR WITH A DIFFERENT BRAKING SYSTEM DESIGN. *TR
TL* THE CONTACT OWNS A 2010 HYUNDAI GENESIS. WHILE DEPRESSING THE BRAKE PEDAL AND ATTEMPTING TO STOP THE VEHICLE, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD. THE CONTACT WAS ABLE TO STOP THE VEHICLE. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE HYDRAULIC ELECTRONIC CONTROL UNIT FAILED AND NEEDED TO BE REPL…
Read full complaint
TL* THE CONTACT OWNS A 2010 HYUNDAI GENESIS. WHILE DEPRESSING THE BRAKE PEDAL AND ATTEMPTING TO STOP THE VEHICLE, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD. THE CONTACT WAS ABLE TO STOP THE VEHICLE. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE HYDRAULIC ELECTRONIC CONTROL UNIT FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 13V489000 (SERVICE BRAKES, HYDRAULIC). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.
Official recalls
314V713000 · Exterior Lighting:brake Lights:switch
Nov 7, 2014
Hyundai Motor America (Hyundai) is recalling certain 2009-2011 Hyundai Genesis vehicles manufactured April 30, 2008, to November 21, 2010, and 2011 Hyundai Equus vehicles manufactured July 31, 2010, to November 21, 2010. Due to a circuit failure, the stop lamps in the affected vehicles may not illuminate.
Consequence & remedy
Consequence: A following vehicle may not recognize that the vehicle is slowing or coming to a stop if the stop lamps on the vehicle do not illuminate as expected. There is an increased risk of a rear-end crash as a result.
Remedy: Hyundai will notify owners, and dealers will repair the stop lamp switch circuit, free of charge. Hyundai issued an interim notification to owners on January 6, 2015. The recall began on March 23, 2015. Owners may contact Hyundai customer service at 1-855-671-3059. Hyundai's number for this recall is 125.
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.
13V113000 · Exterior Lighting:brake Lights:switch
Apr 1, 2013
Hyundai Motor Company (Hyundai) is recalling certain model year 2006-2009 Accent, model year 2007-2011 Azera, Sonata and Sante Fe,2006-2011 Tucson, 2009-2011 Elantra Touring, 2007-2010 Elantra, 2008-2011 Veracruz, 2009-2011 Genesis, 2010-2011 Genesis Coupe, 2007-2008 Entourage, and 2006-2008 Tiburon vehicles. Originally, in April 2013, Hyundai recalled 1,059,824 model year 2007-2009 Accent and Tucson, model year 2007-2010 Elantra, model year 2007-2011 Santa Fe, model year 2008-2009 Veracruz, model year 2010-2011 Genesis Coupe, and model year 2011 Sonata vehicles. In September 2013, Hyundai informed the agency that it was adding more vehicles to this campaign, representing an additional 652,512 units. The total number of vehicles being recalled is now 1,712,336. In the affected vehicles, the stop lamp switch may malfunction. A malfunctioning stop lamp switch may cause the brake lights to not illuminate when the brake pedal is depressed or may cause an inability to deactivate the cruise control by depressing the brake pedal. Additionally, a malfunctioning stop lamp switch may also result in intermittent operation of the push-button start feature, affect the operation of the brake transmission shift interlock feature, preventing the shifter from being moved out of the PARK position and cause the Electronic Stability Control (ESC) malfunction light to illuminate.
Consequence & remedy
Consequence: Failure to illuminate the stop lamps during braking or inability to disengage the cruise control could increase the risk of a crash. Additionally, when the ignition is in the 'ON' position, the transmission shifter may be able to be moved out of Park without first applying the brake. This may lead to unintentional movement of the car which may increase the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will replace the stop lamp switch, free of charge. The safety recall began on April 22, 2013. Owners may contact Hyundai at 1-800-633-5151. Hyundai's recall campaign number is 110.
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