2014 Hyundai Sonata Brakes Problems

ABS module/brakes system goes into limp mode randomly, which causes brake malfunction, throwing codes c1233, c1234 and c1236. There was a recall repair performed by Hyundai about two years ago, however there was two options on NHTSA recall 23V651000/campaign 251. One was to replace a safety plug fuse issue, TSB 23-01-054H . That is the recall they performed. The other recall repair which they did not perform is to replace the ABS module. The Hyundai dealer says I must pay a $225 diagnostic fee for them established they need to do this recall repair . Does that sound correct to you?

NHTSA ID

11730062

Incident

Apr 2, 2024

My vehicle, a 2014 Hyundai Sonata Turbo, is having brake lock-up issues. It seems to be related to the AVS (Automatic Brake System). This happens mostly when the vehicle is parked on a hill and the brakes lock up when I start moving. This has been happening for several months, but my mechanic hasn't been able to find the problem. I made an appointment with Hyundai to find out what the issue is, but they told me there's no recall related to it.

NHTSA ID

11708752

Incident

Jan 2, 2026

The contact owns a 2014 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the Hybrid braking system warning light illuminated. The vehicle was taken to two separate independent mechanics, where it was diagnosed with ABS module failure. The contact was informed that the ABS module needed to be replaced. The vehicle was not repaired. The vehicle was taken to the dealer, where it was diagnosed with ABS module failure. The contact was informed that the ABS module needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was filed. The contact had received an unknown recall notification; however, the dealer and the manufacturer informed the contact that the VIN was not under recall. The failure mileage was approximately 90,000.

NHTSA ID

11693622

Incident

Feb 27, 2025

Mileage

90,000 mi

The electrical in the entire car is malfunctioning. Sometimes the brake lights don’t work due to wiring, other times the seats control don’t work and the cables to battery is not connected/firing correctly. Has an entire electrical issue

NHTSA ID

11676058

Incident

Jul 24, 2025

the car has abruptly applied braking while driving. I took the car to get checked after that and i was told that there was nothing wrong except that the pads will need to be change sooner than later. I mechanic did tell me that it could be a safety issue because it was an uncontrollable. I than took the car to the Hyundai dealer for them to diagnose the car. They proposed that i change everything, including the brake pedal, which to me, sounded very fishy. One week ago, while driving, the car suddenly jammed on the brakes again. This particular time, it was also emitting smoke, either from the front or the bottom.

NHTSA ID

11663736

Incident

Mar 9, 2025

I was driving and my car started beeping and the wheel jerked to the left and my car slowed down from 65mph to 20mph and almost caused me to have an accident. After I replaced the breaking module, my battery started shorting out and my car once again jerked off to the side and then slowed down abruptly from 65 mph to 20mph.

NHTSA ID

11627965

Incident

Nov 29, 2024

ABS control unit/pump is leaking. I was told it's not covered under warranty or recall. Local mechanic states they can't repair it because the part has to be properly programed at the dealership. I've spoken with other Hyundai owners and they have had the same issue.

NHTSA ID

11604751

Incident

Jul 26, 2024

Lost all braking ability while driving. Had towed to a shop and they were finally able to recreate the issue. There are no error codes indicated when they hook up to a computer. Have bled brakes and still not fixed. They are telling me they've done all they can do.

NHTSA ID

11593597

Incident

May 22, 2024

Received recall notice on 4-16-24 and immediately called for an appt to repair ABS problem. I was told that the part was not available at this time and should call back in a couple of weeks. I called on May 2, 2024 and scheduled an appt. for May 7. After waiting for over an hour, I was told that, yes indeed, my car needed repair but could not be done at that time as this was only an inspection to determine that a repair was needed and someone would call when the part is available but they don't know when. I feel like I was given a run around.

NHTSA ID

11588387

Incident

May 7, 2024

On Feb 15th 2023 my daughter was driving my 2014 Hyundai Sonata at the posted speed limit of 55 MPH on a 2 lane blacktop when the car suddenly and without any warning at all, lost all power and became unresponsive while traveling with other vehicles behind her, in front of her and in the opposing lane of travel. Without enough of an improved shoulder to pull to the right and a steep embankment on that side of the roadway as well, she was forced to veer to the left with other cars approaching. She had minimal braking, steering and no response to depressing the accelerator pedal at all. She was able to direct the car onto a paved portion of a feeder road and finally got the car stopped. The cabin filled with smoke and there was smoke all around the car but no fire was ever found. These vehicles are dangerous to the public and have a known engine defect that because of this the manufacturer has implemented a software patch known as KSDS and with this recall in place should have allowed my daughter to reach a safer place than being stranding on the side of a busy hi-way. My car had this patch installed and I was assured that this recall would allow the car to be driven a safe distance and it would be obvious when this patch was active and the engine would be put in "Limp mode" This did not happen, the engine locked up

NHTSA ID

11584571

Incident

Feb 15, 2023

I am filing a complaint due to the lack of timely fix of this recall. It has been more than four months since the recall was issued (NHTSA Recall Number 23V651000) with no repair available.

NHTSA ID

11569104

Incident

Jan 31, 2024

ABS module is damaged. Car is not operable. Dealership did diagnostic on vehicle. And stated there is an ABS recall. But no remedy as of yet. Car will not operate.

NHTSA ID

11563096

Incident

Dec 9, 2023

Vehicle displaying "hybrid system warning! Safely stop and do not drive!" And "check brake" car will not drive over 15 mph. Also draining has And 12 volt battery. Took it to hyundai dealership and was told that the brake module was damaged and needed replacement. We are aware of the current ABS recall. And waiting for remedy

NHTSA ID

11560225

Incident

Dec 12, 2023

BRAKES FAILED CAR DID NOT STOP ONCE THROWN IN PARK I WAS GOING INTO ONCOMING TRAFFIC AND COULD HAVE BEEN SERIOUSLY HURT!!! AFTERWARDS CAR COMPLETELY DIED. I HAVE BEEN HAVING ALL SORTS OF ISSUES WITH THIS VEHICLE 2 MONTHS AFTER PURCHASE. I HAVE PAID FOR LABOR SEVERAL TIMES AND EACH TIME I GET THE VEHICLE BACK THE NEXT DAY THE VEHICLE IS COMPLETELY DEAD AND NEEDS TO BE JUMPED FOR EACH USE. THE DEALERSHIP REALLY HASN'T PROVIDED A FIX, CURRENTLY BRAKE FLUID SIGN IS ON. THIS CAR HAS BEEN TOWED AND SERVICED AT LEAST 10 TIMES. I NEED HELP

NHTSA ID

11554994

Incident

Sep 21, 2022

Incident date 07/04/2023 Incident place I-405 exit WA-522 Incident total engine, car system completely off, brakes won't work Traveling with whole family complete car system failure, had to drive to side road hitting bushes and trees in order to get the car stopped State patrol arrived at the scene, assisted getting towing Everything turned off while on freeway to direction to the two/three lane bridge had to quickly take any exit in order to avoid the freeway bridge I repeat again Total Engine & System failure, Brakes won't work at all while system is dead

NHTSA ID

11554647

Incident

Jul 4, 2023

Over past 2 years, repeat alarm & message on dashboard, says, “Hybrid System Warning! Safety Stop and Do not Drive.” During attempts to back vehicle from garage, brakes grind. Seemed to be on auto-stop, trying to stop the vehicle from moving. On 01/03/22, brought car to Laguna Niguel Hyundai. Invoice notes “Caused by HISTORY CODES IN AHB C2112 C1102 C1237; NO CODES CURRENT CLEARED HISTORY CODES AND TEST DROVE VEHICLE NO CODES OR LIGHTS ON AT THIS TIME.” Was told history codes related to something about “voltage too high” and “Accelerator switch circuit [ABS switch]” and “wheel rear input signal.” On 11/28/22, brought car to Laguna Niguel Hyundai to address the ‘check engine light’ that was on. Service manager said “battery was not corresponding with the engine”, something about “HECU” and how it’s needed to “check brake reservoir for fluid – so I should pump it due to air bubble inside.” On 6/12/23, was driving more than 70mph; began losing speed, down to 0 mph. Stepping on gas did nothing. Drifted toward side of road & got alarm sound and message on dashboard, “Hybrid System Failure.” Terrified. No control of vehicle, 4 passengers, stranded. Towed to La Quinta. Notes on Hyundai La Quinta invoice: “VERIFIED CUSTOMER CONCERN SCANNED CODES P1B25 HIGH VOLTAGE PATH FAULT; P1B77 HIGH VOLTAGE PRECHARGE FAULT; POWER RELAY ASSEMBLY FALUTY SAFETY PLUG ASSEMBLY ARE FAULTY.” Notes also said BATTERY REPLACEMENT: BATTERY FAILED TEST Caused by BATTERY FAILED LOAD TEST. On 7/31, “HYBRID WARNING MESSAGE” returned. Alarm sound, grinding brakes – car undriveable. Towed for service. Invoice: “Caused by LOW BATTERY STATE OF HEALTH 53%. RECHARGE BATTERY TO 100% AND CLEAR DTC AND ROAD TEST.” While 7/31 work was covered under warranty, felt unsafe. Why battery health poor, when it was replaced 6 weeks before? Then came 8/30. Car disabled. Alarm sound & message says, “Hybrid System Warning! Safety Stop and Do not Drive.” Service manager said “hydraulic power unit failure”.

NHTSA ID

11546978

Incident

Jun 11, 2023

Right brake light assembly melting around lightbulb and right brake light not working due to the burn. I went to multiple used auto parts store to try and buy the right brake assembly and noted multiple cars from 2011-2014 had the same issue.

NHTSA ID

11546868

Incident

Sep 27, 2023

Im not aware what is malfunctioning or failing but I get a warning to not drive the vehicle and I start hearing a beeping sound, when I try to break it makes a harsh screeching sound and tugs the car a bit. It’s putting my safety at risk bc I drive for work and I can’t keep having this problem happen on the freeway. I’m afraid my brakes will fail and not break. Idk what the cause to this is, I’ve had two different mechanics take a look at this and no codes pop up. No warnings pop up either. This has been going on for almost 3 months. I can’t drive this vehicle with this problem and it’s the only one I rely on for work and my everyday needs. If you guys can please help me out or look into it I will be waiting for a response. Thank you

NHTSA ID

11535947

Incident

May 29, 2023

While driving normally on the highway I received the "Hybrid Safety Warning: Do Not Drive!" error. The engine began sputtering uncontrollably, the brakes weren't fully responsive and I lost power steering. Thankfully I was able to coast down the road and pull over. If this had happened in traffic I can't imagine an accident would not have happened. Not being able to brake safely or steering properly while your engine is sputtering out of control is terrifying and a MAJOR mistake in design and implementation.

NHTSA ID

11532594

Incident

Jul 16, 2023

I have a 2014 Hyundai Sonata, when I get in and press the brake pedal it is hard to push in and the car won't start till I try to pump the break pedal hard several times till it gives just a bit, then I can start the car up. I know there was a recall for the 2011 and 2012 cars, this report mimics the issue those cars have had a recall for. Once the car starts the brake pedal does work normally, till it sits and then it gets hard to push in again. I took the car to the dealer to be looked at and they wanted to keep it for a week before anyone would look at it, with $200 to start . I couldn't be without a car for that long so they didn't keep it.There were no warning lights and never have been. My fear is that the brakes will fail while driving..

NHTSA ID

11530955

Incident

Jan 4, 2023

My vehicle stopped on the side of the road in oncoming traffic and caused a back up because of my power brake system failing when it should have still been in good condition because I had just purchased my vehicle 7 months ago. The brake light came on made my car slow all the way down doesn’t go over 15 mph and has a skidding sound when braking and it happened again in the street away from home. And this has been seen in multiple vehicles such as the one I have.

NHTSA ID

11530743

Incident

Jun 12, 2023

Mileage

10,900 mi

The contact owns a 2014 Hyundai Sonata. The contact stated that on various occasions, the brake lights and turning signals failed to illuminate as designed. The contact stated that she replaced the bulbs seven times; however, the failure recurred. The vehicle was taken to a local dealer, where it was diagnosed that the taillight wiring harness assembly had melted and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 20,000.

NHTSA ID

11523205

Incident

Jan 1, 2019

Mileage

20,000 mi

While driving it suddenly showing error as “hybrid system warning, stop and do not drive” and “check brakes” then brakes are not working. I turn off the ignition and start car again, then no error.Went to a local mechanic to check codes he can not find anything. This is a serious issue to taken care off as if brakes fail on highway, we may cause an accident. Then I search in google and lot of discussions going around the same incident

NHTSA ID

11520336

Incident

May 2, 2023

The contact owned a 2014 Hyundai Sonata. The contact stated there was play in the steering wheel while driving at various speeds. The vehicle was taken to the dealer where an unknown repair was completed. Additionally, the contact stated that the vehicle made abnormal sounds while driving. The vehicle was taken to the dealer where it was diagnosed that there were metal shavings in the engine oil. The contact stated while driving 10 MPH, the steering wheel loosened up inadvertently and she lost control of the vehicle. The contact depressed the brake pedal but the vehicle failed to respond, causing the vehicle to crash into two occupied vehicles. The air bags deployed. The contact sustained a seat belt mark, and soreness on the neck and shoulders. The contact also sustained numbness in the right hand. The contact later sought medical assistance. The occupants of the other vehicle did not sustain any injuries. A police report was filed. The vehicle was towed to a tow lot, where it was awaiting to be totaled. The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 2,000.

NHTSA ID

11505840

Incident

Nov 25, 2022

Mileage

2,000 mi

Headlights need to be replaced every three months. Brake lights turnt out and melted the plastic around it. Had to replace the entire light unit. Now, the breaklight doesnt work at all. Even after replacing the entire light unit and bulbs.

NHTSA ID

11497140

Incident

Dec 12, 2022