May be engine or electrical or software problem; lost power on interstate from 70 mph to 20 mph then got off exit, shut down and waited a few minutes and then started it up and no problem again; has happened 3 times in last 4 months; taken to dealer twice without success- no codes in computer; now car is sputtering and jumping when gas is applied after slow down/stop. Now getting flashing/blinks on/off ready light on dash. Saw NHTSA id number 10056327 and sounds like my issue. Drive 40 miles one way to work on interstate daily and am getting very concerned about losing power. I have reported it to dealer twice and nothing done about it and reported it hyundia customer service center without a call back to date.

- Piqua, OH, USA

After being jumped once and running properly the car no longer has any kind of power. The rear battery is working fine. My mechanic had also told me that the wheels had a certain type of spring like mechanism that was ready to shoot off the car and that the car needs a very expensive large piece of plastic to regulate airflow if it is going to pass inspection. The vehicle has not been in accidents and nothing out of the ordinary has happened to it to cause these things

- Kingston, NH, USA

My vehicle "check charging system" warning came upon the start up of the hybrid in the morning 12/31/2018, going to work. This was an issue on a heavy precipitous day in past. However there was not heavy rain, I turned the vehicle back off. It turned on without the warning which 1st appeared in front area and is audible. It started as I approached a stop sign. I live about 6 minutes away from work. The battery life is visible and it was not changed from mid point which has always been same. The tank had gas, no issue, and I drove it to work. I assumed with the car turned off for the 6hour shift I had, that it would possibly be relieved. I started the car to now drive to the store for quick grocery essentials. Within a 15 min time frame from work, store quick shopping there, and home again. The warning came back on. As I braked, or came to a stop for lights the warning would stop. As I pushed on gas pedal it would start. As I was approaching an intersection with traffic lights, I prepared to stop but as I got closer the car would not stop anymore than it had (which was significant) but not stopping, as I noticed the distance, my foot on the brake all the way I heard the vehicle (closing song) which is supposed to be heard when you turn the vehicle off. I looked at the dash in front of me which went blank all across the board and I braced for impact. My vehicle came to a stop because the collision occurred with this malfunction and my car hit the car in front of me. Physically we are ok. I am still paying for this vehicle and it is powerless by the curb at my residence until I can afford to have a tow truck pick it up. The dealership said no warranty, no assistance by them. I have a claim with Hyundai which is slow. You tube has so many vehicles from 2011 and recent models that are reporting same warning issues. I have a recording of it from that day.

- Converse, TX, USA

While car is in motion, on highway or anywhere at anytime, the check brake warning light comes on display screen, with an beeping alarm, then the brakes drop to floor barely stopping the vehicle with a grudging noise. I went to the dealer, they gave me the option to replace the ABS system but was not sure of the exact problem and tried to sell me a newer car. This company already has lots of recalls and has put many people's lives in danger. This issue is happening to many other vehicles the same as mine and they are not safe for anyone.

- Palatine, IL, USA

We have had multiple issues with the car accelerating. The vehicle will not respond immediately when pressing the gas pedal. We have had the car worked on by Hyundai 12-15 different times and it continues to have the same issue time and time again. We do not feel safe in the vehicle. The last time that we had the issue was in October of this year and we have not been able to drive the vehicle since that time. Hyundai will not help us get out of the vehicle even though it has had the safety concerns. Recently we found out that the vehicle also had a recall on the air bag and they did not have a fix for the issue. We have come close to wrecking the vehicle multiple times. Thankfully that has not happened or we may have not even had an airbag to protect us. There has been close to $25000 worth of work done to the vehicle and they have never been able to fix the issue properly. We do not trust the vehicle and will not put our family at risk any longer. We need help to get out of the vehicle financially as we have a vehicle that is not safe to drive. It is not safe for us or anyone else on the road.

- Canton, GA, USA

Charging system malfunctioned, complete engine and battery failure, unable to accelerate I was driving on the highway when the "ready" light started flashing on the dashboard and the battery level started dropping without the engine starting and recharging. I was then unable to accelerate the vehicle and was forced to pull over. I turned the car off and back on and the "ready" light flashed on and off then stayed off. I had the car towed to Hyundai where I was told the engine 'locked up' and needed to be replaced along with the battery because it couldn't be recharged.

- Northglenn, CO, USA

My 2011 Sonata hybrid has smoke coming out of the dash and from under the dash and you can smell wires burning. It's all factory nothing has been done to it. It does it when you start it up and it does it off and on while driving

- Cartersville, GA, USA

While driving on the highway I noticed a knocking sound radiating from my engine at speeds of 60 mph it the noise increased and then the engine appeared to be failing. My gages where the rmp's reflect where not functioning either. Amongst the engine issue my power steering column is also rattling as if it is loose and steering is become difficult. It is frightening to not feel safe in your own vehicle.

- Camden, NJ, USA

Check charge system alarm(chime) comes on when the car is turned on. The car hesitates when accelerating, then suddenly gains speed without touching the gas pedal. Battery, check engine, and service lights are also on.

- Glen Burnie, MD, USA

Charging system malfunctioned, sensors melted in valve trane, radiator elbow and fill neck blew off, complete engine failure and battery failure. I have had a problem with the "check brake" light and an alarm going off. However, when I stopped driving and had it towed to the dealership they could find nothing. Prior to this incident, I took a photo of my dash, I had 76,499 miles and the coolant meter did not read hot. I had had the coolant system flushed at 65,000 miles, and I had all oil and fluids checked again after this incident. The breakdown: Three hours into a roadtrip, the A/C began blowing warm, simultaneously - the "the check brake" light and alarm came on, and the "check charging system" light came on. I lost power to accelerate (or brake well) and immediately pulled over and took a photo of my dash warnings (76919 miles). The heat sensor was in the "cool" half, the battery gage showed no power. Battery so low key would not start car. I had the car towed. "tech found that elbow and radiator have holes in them vehicle overheated causing engine to blow." Tiffany richardson said "tech believe vehicle was driven with low coolant level causing vehicle to run hot melting sensors in the valve train and the pipes to fail." The tech is wrong, the coolant system was inspected and flushed at 65,000 miles, and was not due for another inspection. I had had coolant levels checked less than 1000 miles ago, and the heating sensor on dash did not read hot, at the point of breakdown or after a road trip 500 miles ago. Others had the problem at 3000 miles! it's the hpcu. The power for both electric motors is routed through hpcu. The inverters allow the A/C motors to be driven by D/C batteries. This caused the "check charging system" error. $15,000 fix. I owe $4000. 100,000 warranty has denied it & I am original owner. Hpcu recalled B4?.

- Miami Beach, FL, USA

"check charging system" alert. Car not moving at all.

- Evans, GA, USA

The contact owns a 2011 Hyundai Sonata hybrid. The contact stated that when the vehicle was shifted into park, the eps (electric power steering) warning light illuminated. In addition, the vehicle failed to power off and the 'shift gear into park' warning message illuminated when the vehicle was already in the park position. The contact also stated that when the vehicle was powered off, it took numerous attempts to restart the vehicle. The vehicle was not diagnosed or repaired. The manufacture was not notified of the failure. The failure mileage was approximately 120,000.

- Tijeras, NM, USA

Drove down the road to the store and turned off the car and when I came out to turn the car on and go home the car would not start, the issues that were happening were, the light would flicker on and off, the brake pedal was pumping in and out under my foot on its own, and the car would not start, after trying a few times the whole car and system shut down completely and the hazards started to come on automatically and there was no power to the automatic door locks and window and the only things working in the car was the anit-theft system

- San Diego, CA, USA

We were driving on I81N in Virginia when it sounded like we were driving over gravel.I thought it could have been a tire. Found tires were ok. Waited to pull out safely. Seconds after we entered I81N, we began to lose power, A/C and a warning light indicating to check hybrid system came on in message board. We pulled off at exit 277N and had enough power to find a safe place to pull over.I discovered that the serpentine belt was shredded. We were towed to a Hyundai dealer where the car sat overnight on 9/6/15 until service opened on 9/8/15. The serpentine belt was replaced as well as the water pump belt which was also damaged. The mechanic informed me the new belt was not running true on the tensioner and a ridge had formed on the outside surface of the tensioner. My opinion is that the part was defective because the belt was not running true.

- Gibsonia, PA, USA

Took car in for repair of malfunctioning stop lamp switch all the same issues as in NHTSA campaign 13V113000 even though my model year was covered in recall they said my VIN was not covered I was charged a fee to diag the vehicle and for parts and labor.

- Sunbury, PA, USA

The contact owns a 2011 Hyundai Sonata hybrid. The contact stated that while driving approximately 35 mph, he attempted to brake and all the warning lights illuminated. The contact also stated that the vehicle stalled and could be restarted. The failure recurred on fifty occasions. The vehicle was taken to a dealer where it was diagnosed that the transmission, the electric motor, and the oil pump needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 66,000.

- La Mirada, CA, USA