2012 Hyundai Genesis brakes problems

Filed Jul 8, 2026 · Brakes · CA

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)

Filed Feb 6, 2026 · Brakes · FL

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 (the federal safety agency 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 the federal safety agency: 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

Filed Jan 31, 2026 · Brakes · VA

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)

Filed Mar 10, 2024 · Brakes, Electrical · NJ

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 the federal safety agency 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

Filed Jan 26, 2024 · Brakes · 22,000 miles · NY

The contact owns a 2012 Hyundai Genesis. The contact stated while driving at an undisclosed speed, the brake pedal was depressed and went to the floorboard, and the vehicle failed to immediately stop. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the brake booster and brake master cylinder. The vehicle was not repaired. After investigating the failure, the contact related the failure to the federal safety agency Campaign Number: 13V489000 (Service Brakes, Hydraulic) but the VIN was not included in the recall. The manufacturer was notified of the failure, and a case was opened. The contact was referred to the federal safety agency Hotline for assistance. The failure mileage was 22,000.

Filed Aug 29, 2023 · Brakes · TN

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.

Filed Mar 28, 2023 · Brakes · 181,000 miles · MO

The contact owns a 2012 Hyundai Genesis. The contact stated that while driving at 10 MPH, the brake pedal went to the floorboard while depressed. The contact related the failure to the federal safety agency Campaign Number: 13V489000 (Service Brakes, Hydraulic). The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 181,000.

Filed Sep 20, 2022 · Brakes · KY

2012 hyundai genesis. Consumer writes in regard to the federal safety agency safety recall 13v‑489. The consumer stated the vehicle was making noise. While braking. All four rotors were rusted and replaced. The vehicle made a whine noise at cold starts. Transmission assmbly was replaced. The consumer stated after the vehicle was repaired, the noise continued. The dealer advised the consumer to transport the vehicle to another dealer to be diagnosed and repaired.

Filed Sep 13, 2022 · Brakes · SC

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.

Filed Sep 1, 2022 · Brakes, Transmission · 25,000 miles · KY

The contact owns a 2012 Hyundai Genesis. The contact stated that vehicle was taken to the dealer to be serviced under the federal safety agency 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.