The left front brake caliper fell off and rubbed on the wheel-??s rim. When I drove in reverse and hit the brakes the wheel would lock up and I couldn-??t move. The dealer replaced the caliper. I had the brakes inspected by the local tire and brake specialists, Les Schwab. They wrote the inspection as the brakes locking bolt(the bolt that holds the caliper in place) was missing and the caliper was rubbing against the wheel. There wasn-??t a warning. But, I did hear a loud clunk right before the brakes failed then the brakes made a rumbling sound as if I had a rock stuck in the brake pad. I asked the dealer to save the broken unit so I could document it but the service department manager for Korum Hyundai of Puyallup tried to pass off a different unit. I took pictures of both my unit (on the car) and the unit the manager was trying to pass off.

- Auburn , WA, USA

The contact owns a 2013 Hyundai Sonata. The contact became aware that the brake lights were illuminated without the brake pedal being depressed. The contact restarted the vehicle and the failure persisted. The contact stated that due to the brake lights remaining illuminated, the battery terminal had to be disconnected to avoid draining the battery. The contact stated that after one failure, a mechanic pulled over to the side of the roadway and the contact was informed that a sensor related to the brake lights had failed and needed to be replaced. There were no warning lights illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 18,178.

- Saint Louis, MO, USA

The active hydraulic booster(AHB) failed while I was driving. While driving 70 mph down the highway the car began to beep and immediately the breaks began to lock up and brake pedal went all the way to the floor. All I could hear was grinding and it was hard to stop. A car came close to hitting me because the deceleration was so abrupt. I towed it to hyundai dealership and they confirmed the issue is the AHB. After further research, I learn that this happens more often then expect on this vehicle and at first was very hard to diagnose.

- Dallas, TX, USA

When driving with foot on gas car starts to decrease in speed and pedal goes to floor but I lift foot off gas then put back on gas speed increases back to normal

- Brentwood , MO, USA

Tail light on but brake lights not illuminating due to bulb melting on the bulb socket. Happened to a lot of vehicle owners online and now happening to me. But no recalls are posted. Was pulled over by police. I checked once I got home and saw that socket is burnt and melted.

- League City, TX, USA

The engine lost power while getting on the highway. I was able to let off the gas and then go again. This happened several times. I took the car to the dealer where I bought it new. I found out that there was a recall on the brake stopper. The dealership never mentioned this. They said the program was over and charged me $231 for a part that was recalled. Are they allowed to not inform us of recalls? Please advise. The dealership is Keith Hawthorne Hyundai in Gastonia NC. 704-824-6010

- Gastonia, NC, USA

While driving the car when slowing for a stop, or just closing down in traffic the car/engine at times will jerk and lurch while braking. If I am not a safe distance from a car in front of me I could cause and accident and hit a car, so I try to keep a good distance when in traffic and refuse to drive the car on long distances on the highway. I can't predict when it will happen and when it does the slippery when wet signal comes on even though it is not wet or slippery condiitons. I don't trust the car while driving, and have no faith in it's safety. I haven't scheduled an appointment for repair because the last time I did they kept the car for over 20 days due to what they said was a system, sensor failure and charges me $3100, when I got the car back I noticed liquid leaking from the car and then the above started happening. The car is available for inspection on request. Car has not been inspected yet, not sure if I can reproduce every time. But it happen almost every day I drive the car to work within 20 miles of my home. The dealership the last time would not give me a loaner car and I need the car to travel back and forth to work since I live in a place without access to public transportation.

- Bethany, CT, USA

I was driving and the brake light came on and I lost the brackes

- Miami, FL, USA

I bought my car used from a private party in March of 2022 with around 132,000miles. In a year's time I have replaced the rear passenger side tail light bulbs 3 to 4 times, the whole light assembly, and the wiring harness twice due to the bulb getting to hot and the plastic caught on fire the first time and melting the second. Noticed the smoke when I pulled into a gas station that day and opened the trunk quickly and beat the small flame with a small blanket I had in the trunk. My kids sit in the back seat. So I'm constantly worrying while driving when they are in the back. The headlight bulbs go out quicker in this vehicle as well. I've had to replace the headlight bulbs 3 times already. This is also too close to the fuel pump for this sort of thing to happen in my opinion. This needs to be resolved A. S. A. P.

- Erwin, NC, USA

Hi last week I start my hybrid sonata 2013 when the engine get hot I start running car withing 5 minutes I was driving 35mph and suddenly my break fail and car start flush warning check brake this is the 4time is very unsafe car sonata hybrid

- Worcester, MA, USA

I have been having this problem with the car since May 2022. I was driving normally and the car gave the warning: Hybrid System stop and do not drive - check brakes, well I took the car to the mechanic near where I live zip code 90017 (Pep Boys) I have the note of the service that was done the first was on 11 June/22 and the brakes were changed since I thought this would be the problem and more fluid. The problem continued even with new brakes. I went there again and they check the brake system and they said everything looks fine on 20 June/22. So, I decided to scheduled an inspection at Hyundai in Van Nuys zip code 91404 (29 July/22) and I reported my problem that I was having with warnings check brake all the time while I-??m driving every day, but I don't have another car and I need to go to work. Hyundai also couldn't solve the problem of warnings check brakes and I still having this problem, I get the free way every day to go to work and I'm scared because I never know when a warning will appear and the car practically stops in the middle of the free way ( it happened every day) which is making me feel very insecure with this car because it is dangerous but I-??m tired of this car and this problem I can-??t even go to super market without stop the car because of the warning check brakes.. I will include the photos of the recipes of the services that were made. I would really like to be able to solve this problem and feel safe to drive the car. Thank you.

- Los Angeles , CA, USA

While driving my 2013 Hyundai Sonata, I smelled fuel fumes coming through my a/c vents for several minutes. I shut the a/c off and rolled the windows down. White smoke began billowing out of my exhaust tail pipe then from under the hood. Being in the far left lane of a five lane freeway, other motorists and I were placed in danger as I had to travel across all lanes of traffic as my vehicle billowed thick white smoke into the air limiting the clear view of other motorists and increasing the chance of causing collisions. I pulled over to the shoulder of the freeway and then lost all power steering and brakes on my vehicle. I applied the emergency brake and brought my vehicle to a stop then turned it off. I looked at the temperature gauge and it read normal range but the check engine light came on along with several other dash lights. Once I turned the vehicle off, flames and billowing smoke began coming from under my hood. Four to five minutes later the fire extended to the cabin then the vehicle was fully engulfed. The fire department arrived and extinguished the vehicle fire. Prior to this drive, I have not smelled any fuel leaks or fuel odor inside or outside of the vehicle. It appears a fuel delivery component was the cause of the issue.

- Victorville, CA, USA

The contact owns a 2013 Hyundai Sonata. The contact stated that while operating the vehicle, the braking system malfunctioned and the vehicle would not immediately stop while depressing the brake pedal, causing the braking distance to be extended. Additionally, while operating the vehicle, the front headlights would flicker off and on. The cause of the failure was not yet determined. The vehicle was not repaired. The local dealer was notified of the failure but no assistance was offered. The manufacturer was not yet contacted. The failure mileage was 126,000.

- Redford, MI, USA

While driving car started beeping and making noises - check engine light, brake light, lcd displayed brake warning and flashed "hybrid system warning! safely stop and do not drive". Brake pedal then went to floor, and engine power reduced. Re-starting the car only cleared the problem for a minute before the warning message re-occurs. Others have encountered this issue resulting in crashes. https://also reported here: https://www.carcomplaints.com/Hyundai/Sonata/2013/brakes/service_brakes.shtml

- Apex, NC, USA

ON AUGUST THE 15TH MY CAR WAS GOING DOWN SHARPE RD IN BURLINGTON NC AT ABOUT 25-30 MPH GOING TOWARDS ROSS ST. I TRIED TO STOP ON MY BRAKES AND MY CAR WOULD NOT STOP.. AS I TRIED STOP IT I FELT MY BRAKE PEDDLE GO ALL THE WAY TO THE FLOOR. I WAS ABLE TO PULL MY CAR OFF THE ROAD AND SIT UNTIL I HAD A TOW TRUCK COME TOW IT HOME. I HAVE MY CAR AT CHRENSHAW HYUNDIA. I HAVE ALSO BEEN TRYING TO GET MY CAR SERVISED THROUGH THEM AND THEY HAVE ALWAYS BEEN BOOKED U. THAT CAUSES A LOT OF CAR issues when you have to wait on an appointment. I really need my car fixed and I do not have the kind if funds that they are asking.

- Burlington, NC, USA

The check brakes hybrid system warning stop and do not drive light is coming on and not allowing me to drive the parking break light is also

- Levittown, PA, USA

The brake lights stay on even with the engine off. Happened multiple time.

- Nashville, TN, USA

My safety was put at risk and the life of others as a chime sound began to sound and the "check brake/Hybrid System Warning" was displayed on the dashboard. This caused the car to press the emergency breaks on its own slowing the vehicle to a complete halt on freeway. This malfunction could have caused a multi vehicle collision. This was taken for inspection and Scanned with GDS and C1235 Pressure sensor, is internal in HECU and cannot be repaired, HECU must be replaced. The vehicle is unsafe to drive and pedal sinks which feels like car does not stop. The output signal voltage of the pressure sensor is out of the specified range, the monitoring starts 1 sec after power up. The cause of this could be that there is a faulty pressured sensor and/or open or short of pressure sensor circuit. The pressure sensor installed in the HECU, converts the brake pressure to judge the drivers brake intention when the ESC program is operated. When pressure is applied to the sensor, the resistance of the sensor's strain gauge changes. The change in resistance changes the voltage output from the sensor. A fail safe inhibits the ESC/DBC control and allow the ABS/EDB control. The ESC/DBC warning lamp is activated. A safety recall should be established by this establishment as other Hyundai Sonata Hybrids are having the same malfunctions and are having to repair costs out of their own pockets, $4,300 given quote.

- Lynwood, CA, USA

Vehicle stopped braking and beeping noise and brake light on dash.

- Tustin, CA, USA

hybrid brake warning bells went off and lost brakes. had vehicle taken to dealership and they cant duplicate problem. very scared to drive vehicle. Don't want to be a statistic on the road.

- Kissimmee, FL, USA