general problems of the 2012 Hyundai Sonata - part 2

While driving on the freeway, the hybrid system warning, safely stop and do not drive will alternately flash with check brake and continuously the alarm sound with the park brake red light. The car would loose acceleration, and the brake pedal goes to the floor when applied. Once stopped, I restarted the car and the same things happen. The car can accelerate on and off for about 5mph. Brake pedal still goes to the floor. After restarting the car for 30-minutes- 1 hour, there are no warning lights or alarm. The car can be driven again. I brought to independent mechanic and found the code c1604 and there’s a recall 251 on abs brake system- recommended to bring to dealer. Brought to dealer, they say that recall 251 had no fix yet. They diagnosed that the safety plug relay needs to be replaced. Dealer replaced it and said that the car is fixed. Pick up the car from the dealer. After 20 miles of driving the same problem occurred- hybrid system warning, safely stop and do not drive will alternately flash with check brake and continuously the alarm sound with the park brake red light. Had the car towed back to the dealer. After 2 days, the dealer says it’s possibly a transmission issue. I asked how come it wasn’t diagnosed the first time around? no clear response. Issue occurred 4 times already.

The grid warning light is coming on and telling me to stop the car. When this occurs the car will lose power and the brakes will start making a grinding noise. My safety was at risk when I was driving on [xxx], chula vista, California by southwestern community college approaching behind cars at a red light intersection on the second lane to the right going east and the warning light came on. The car started making a grinding noise and to lose power. The intersection was busy and I was barely able to get the vehicle to the right lane to get out of the way of traffic going east. I was blocking the right turn lane onto [xxx] in chula vista, CA I took the vehicle to the dealer and has been confirmed. It first appeared approximately in July / August of 2023. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

I’ve been having issues with the brake lights being sometimey sometime it works and sometimes not, and almost been in accidents once too many times. I’ve also notice a lot of Hyundais especially Sonatas that’s on the road have the same issue. I’m at a loss in what to do with having to change light bulbs every month it acts up with both break lights. Horn doesn’t work. It stopped months ago and fused changes and still no horn work. The other day while driving it brought someone was blowing at me so I turned down the radio and heard my very own horn blow on it’s own several times it does this off n on even at the light or while driving. I don’t have money to fix all these issues with this car. Hopefully we can get a recall and get this fixed!.

Came home saw that the break lights were on in my Sonata. Tapped the brake pedal, they went off. Came home the next day same thing. I found a re call (google) for stuck brake lights. 2011 - 2012 Sonatas. I purchased the car used, and was informed that everything is working and in order. I'm just curios if there were any other reports concerning this matter?.

My vehicle is experiencing several recall issues. The seat belt in driver seat randomly pops unlocked which is very dangerous while driving, the headlights and brakes lights go out once a month due to some electrical issues with the vehicle, the tire bearing clocks when the vehicle is turning.

I have a 2012 Hyundai Sonata hybrid that has a problem with its abs module. It is overheating and causes my car to stop its brake and motor functions while driving. I contacted the dealership to get a rental or replacement in the meantime and they told me there is nothing they can do and to drive with caution. I called the manufacturer to get a rental for the meantime and they told me the same thing. I have looked on the recall documents and it says they should give me a vehicle in the meantime if it is unsafe to drive. Please, I don't even want the car at this point because of all the problems with it and with my dissatisfaction with customer service from any Hyundai business. But if I could just get a car that is safe to drive while I wait for the recall to have a remedy , I would take that.

The break light don’t want to turn off seat belts don’t latch.

Brake light is stuck on.

While driving with foot on accelerator, acceleration/ current speed will randomly just stop. 1-1- once I fully release the accelerator and then reengage the accelerator problem goes away. This is very random as to when it happens, and will happen multiple times in a row some times. . . And other times happens once and doesn't the rest of the trip. This seems to be more amplified occurrences when it is cold. 2- safety is put at risk. 3- not gone to dealer yet. 4- no inspection yet. 5- no warning messages.

The car has been meticulously maintained — I am glad to provide all records of regular service upon request — and lovingly cared for. It came to us in great shape. Until, that is, I drove it for the first time and the brakes failed. I rolled into an intersection. Luckily, there was no traffic and no one was harmed. But I had a very helpless feeling, and I feel incredibly grateful no one was hurt. After taking the vehicle to two mechanics, they independently confirmed that a sensor in the abs module was failing, leading to a sudden loss of braking. After a cursory internet search, I found that many owners of this model and year of vehicle have encountered this dangerous problem.

I recently purchased a Hyundai Sonata hybrid with 132k miles on it and it has been driving fine for at least two weeks until a few days back the car has been displaying a recurring alarm on the dashboard telling " hybrid system warming! safely stop and do not drive " now as soon as I turn on the vehicle the alarm comes on immediately. It's been a week since the car is technically inoperable because if I attempt to drive the car it makes this horrible grinding sound which is terrifying considering if I drive like this it would probably cause more damage to the car, and I have look for information on this issue and have found many of these cases over the years that I can relate to but unfortunately there's no a recall of this problem. I'm taking the car to the dealership soon but I don't have any hopes that they will find a permanent fix for this since nobody has apparently. I'm just trying find some help with this issue. So far I just have lots of regrets about this purchase and just hoping I can find some help with this matter.

Driving on freeway and traction control light came on and stays on. Then my car stalls. Additionally, I awakened at 6 am to find my breaks light had been on most the night at no fault of mine. I checked my VIN# and being told my 2012 Sonata is not part of the recall campaign 136. This is a danger to my life and Hyundai is refusing to correct the problem at their cost.

Break lights don’t go off.

Vehicle doesn’t stop hard pedal and brake light came on 144k.

Illumination of the malfunction indicator lamp and/or abs (anti-lock brake system) light. My 2012 Sonata hybrid has been towed twice to key Hyundai dealer in jacksonville, FL. They charged me several thousand dollars and the vehicle abs lamp remains illuminated. The dealership did not offer me alternative transportation and I feel unsafe driving the vehicle. On Friday November 12th they blamed the brake lamp illumination on the hybrid main battery and gave me an estimate of $12,900. 00 to replace the battery. The first time I took the vehicle in for this problem my vehicle was still under 10 year/100,000 mile warranty. My car has approximately only 35,000 miles driven. They did not honor the warranty. This is a brake issue not a battery issue.

Driving on a freeway when check brake warning appeared. Car speed dropped down to drastically. Alarm was chirping and brakes made a bad grinding noise.

The car starts alarming out of nowhere while driving at 70 mph on the interstate and the hybrid system warning - safely stop and do not drive along with the wrench, battery light and engine light all appearing on the dashboard to pull over and do not drive when this occurred I lost total control of the vehicle. The brake peddle goes all the way to the floor enabling me to stop and I lost the ability to steer the vehicle as the power steering went out as well while this was happening. I almost got killed as I was on the highway driving at 70 mph. I immediately put on my hazards lights to signal to other drivers that I was having mechanical problems. Thank god I was able to pull over without anyone hitting me from behind. I have had major major issues with this car since I purchased it the engine seized up on me in the same manner back in 2020 and the engine was replaced. Then there was an issue with the transmission and that was also replaced. Then the brake booster also failed and had to be replaced as well. Hyundai aught to be ashamed of the production of this vehicle as it is truly a severe risk to the lives of the consumers not just the person who is driving this vehicle but also to those who may be behind someone driving as this could cause a major accident and people could be killed. These cars need to be recalled and they need to get down to what is causing these issues in order to fix the problem. I pray that you all make Hyundai do a recall on this vehicle as I have googled and see that there has been many others that have encountered these same issues. I am filing this complaint in hopes of you all getting involved to do something about this. Any help with this will be greatly appreciated.

The contact owns a 2012 Hyundai Sonata. The contact stated that while driving at various speeds, the brake pedal was depressed however, the vehicle failed to stop. The contact stated that he heard a grinding noise in the wheels and the hybrid system and brake warning light illuminated. The vehicle was taken to an independent mechanic where the brake pads, rotors and calipers were replaced however, the failure recurred. The vehicle was taken to multiple independent mechanic where the failure could not be duplicated. The dealer was notified of the failure and an appointment was scheduled for October. The manufacturer was not notified of the failure. The failure mileage was 204,900.

Brake lights stay on when the car is turned off. It is draining the battery and I cannot drive the car. No Hyundai dealers near me have availability until October or after.

My "Hyundai system warning safely stop and don't drive". Light went off with my brake light on also, we were driving on the freeway going around 60 mph I was I'm the middle lane causing me to have to hurry and pull over as car came to complete stop. I went to brake check to see if the breaks needed to be replaced and after inspection they said everything was fine, brakes, rotors and brake fluid was fine it's been doing this more often now. .

The contact owns a 2012 Hyundai Sonata. The contact stated upon starting the vehicle, the brake light was illuminated. Additionally, the contact stated that the failure had been draining battery. The contact stated that the battery, the alternator and the started were replaced with the assistance of a friend. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The contact related the failure to an unknown recall. The failure mileage was approximately 180,000.

"hybrid system warning, stop safely and do not drive" and "check brake" alarm. Car immediately went into limp mode (15mph top speed). Luckily, I was not on the highway, but on residential street. Alarm was not recoverable by restarting car. Dealer says its the hydraulic brake booster and will cost $3250 to fix. Vehicle at 80,000 miles.

The brakes lights (all three) wont shut off even when the vehicle is not on.

My 2012 Hyundai Sonata, build date 10/31/2011, experienced the exact issue as described in NHTSA campaign number 15v759000. Note that the campaign covers Sonatas built before my vehicle's build date. The brake pedal stopper pad deteriorated and resulted in the brake lights falsely illuminating at random times. Furthermore, the condition - when occurring - resulted in the car overriding any throttle inputs, making for random inability to provide throttle inputs.

The brake pedal stopper pad deteriorated, allowing the brake light switch plunger to remain extended when the brake pedal was released. This kept my break lights on even when the car was turned off, which lead to issues with my accelerator randomly giving out while I was on the road, and my traction control forced off.

On March 19th I was involved in wreck where the other driver was at fault. The lady t-boned me on my driver's side. Airbags never deployed so my head smashed into the window leaving me with a concussionand spinal injury. My usually working horn failed as well. I would also like to mention that I have only had this car a year. I was also told it was never in a wreck and had 1 owner. Nope. A week after I got it, I was driving and my engine seized while I was doing 70mph. The steering stopped working, but somehow managed to pull off to the side. I had to stay in my car because of the busy highway. It was 100+ weather and my windows wouldn't work. I sat there for 2 hours. Took the car to a shop just to find out about the engine recall that I believe my car wasn't apart of, but should have been. Fought with Hyundai for them to fix it then lost my job because I was denied a loaner car while waiting. 2 months later they finally fix it. Now the breaks do a weird grinding thing a lot, my shifter slips out of place, the steering column wobbles, the engine is constantly making a disturbing noise and is sluggish, it has trouble shifting when accelerating. I have had the car rapidly accelerate instead of slow down when stopping at a stop sign or light. I only got it to stop after stomping the breaks repeatedly while throwing it in park and turning the car off all at the same time. Emergency break and traction control light come on a lot. It's throwing a high speed can bus code, but only sometimes. My gas mileage has went down to 16-18 mpg. Oil changes are necessary every month. And my taillights burn out every 1 to 2 months. Now I have 4 traffic tickets. And that was all before the wreck. Hyundai refuses to call me back after they reluctantly fixed the first recall.

About 1 month after I bought this vehicle, late December 2021, a warning light came on the hybrid screen, it read "hybrid system warning! safely stop and do not drive!" the accelerator was not working I pulled over and turned the vehicle off. I waited a couple minutes and restarted it up again and went on my merry way. About a month later it happened again!! it's happened about every 5 weeks until June 16th at about 5pm, it now permanently chimes and beeps with the hybrid screen warning me of the same, my foot brake goes to the bottom and makes a grinding noise. I am not able to drive it more than 100 yards or so then the accelerator fails again. I owned a mechanic shop and I know my brakes are fine, there has to be something wrong with the brake pumps/master cylinder, the brake fluid reservoir is full and the brakes electrical components make a horrible noise when I depress the foot pedal, I've read on Hyundai forum on-line, that this has happened to various others, its happened on the freeway while I was going about 70mph!! it's happened on busy city streets with 45mph speed limits. Hyundai doesn't want to take any responsibility for it! what can I do? the dealer wants $200 to have it checked with no guarantee that they'll find the problem. Thank you armando lopez 415-424-5831.

After the recent recall repairs, the car started to intermittently getting a message on the dashboard saying ‘hybrid system warning - safely stop and do not drive’ and ‘check brakes’ and the brake lights came on with a loud chiming beep, the car would stop accelerating and would not go beyond 10 mph, also the breaks would fail to apply correctly and made a loud screeching sound when applied. It used to do have this issue without any warning, while driving or stopped at the light, without any distinguishing pattern. However, it used to go away when the car was restarted multiple times. However now the message is on continuously and doesn’t go away with the restarting the car. After taking to the dealership, they said that the repairs would cost $3000 as the hydraulic power assembly unit has failed. After looking for the issue online, I have found that a lot of the 2011-14 Hyundai Sonata hybrid have this same issue and seems to be a manufacturing defect. This is a huge life risk for the owners of this car since it can happen while on the freeway and pose a life threatening risk to their life. It is also a huge financial burden for the owners for a manufacturing defect. I would like you to investigate these issues and provide us with a appropriate solution.

I am experiencing the exact same issues described in a previous recall of 2006 to 2007 model affecting the brake lamp switch. My brake lamps remain illuminated after release of the brake pedal, and the esc light illuminates on the dash.

At 28,000 miles the abh pressure sensor failed c1237 hydraulic power unit. Dealership charged $2947. 95 for the repair. $2141. 55 just for the part. The brakes completely failed and the car required towing.

The contact owns a 2012 Hyundai Sonata. The contact stated that the brake warning light was illuminated. The contact stated that the brake lights were continually illuminated. The contact called the local dealer but, vehicle was not diagnosed or repaired. The contact was concerned about a possible fire. The manufacturer was not notified of the failure. The failure mileage was approximately 56,000.

The rear brake lights burned out can't replace the light because the wiring harness melted and y'all no longer sell replacement wiring harness at the store or dealership for my vehicle make and model I was told I would have to make a out of pocket costly repair to install a new model wiring harness. I keep getting pulled over by the cops cause I don't have break lights. Worse case someone could run into the back of me. This issue is a Hyundai issue. It's so many Hyundai Sonata riding around without break lights. Please fix this issue.

When driving the “check brake” warning comes out and the brakes hit the tires allowing for minimal movement of the vehicle. Right after that, a “hybrid system warning - safely stop and do not drive” comes up. At times, the warnings will continue for days or hours and other times, imthey would just disappear. When bringing the car to the dealer they wouldn’t be able to understand the issue as the warnings suddenly disappear and they would just start guess-repairing the car which can be extremely expensive for us the consumers.

I was driving on the freeway and I put my foot on the gas to accelerate and my car would not go. It had no power. It is intermittent. I can be driving and it is fine then all of a sudden it won’t go more then 30 mph. My brake lights are always going out. Now my break lights won’t turn off.

Ahb hydraulic break module failure car only has 60k miles.