Hyundai Sonata Hybrid warning lights comes on

Filed Oct 21, 2026 · Engine, Transmission · IN

1. It spun a main rod bearing. It is at the Hyundai Dealership in Evansville, In. 2. Loss or power in roadway. 3.Yes it has, by the dealership. 4.Yes, by the manufacturer & the Hyundai Dealership. 5. Yes, as I backed out onto the street all the dashboard lights came on and buzzers and alarms started going off. When I finally got the car in gear then I was able to drive it about 25 feet back into the driveway and I turned it off. I had to have it towed to the dealership and they would not stand behind the warranty for the engine & transmission.

Filed Sep 21, 2025 · Engine · MA

The engine shut off on the highway on two different days. Vehicle was going between 65 and 70 mph. The vehicle engine shut down and all the warning lights came on. Every one. The vehicle still moved but nothing inside worked, it ran on battery mode for the 17 miles to the dealership with a maximum speed of 60 mph. The risk was the immediate unresponsiveness of the vehicle and the sudden and immediate reduction in speed and power. It presented itself twice in about 2,000 miles. The dealership charged a 491$ diagnostic and found all the warnings and reset it, not reason for it happening and sent me on my way. Then it happened again. Brought back to the dealership and they tried to say they did another diagnostic and called the tech helpline. It took hours and they still don’t have a definitive answer, wanted to try almost 2k in repairs to see if it would fix the issue without any guarantees it would. Warning lights, all of them came on, cruise control, abs, engine light blinking, steering, literally everything and messages started running through the information center.

Filed Jul 19, 2025 · Electrical, Engine · WI

Purchased 2019 after 44,000 miles engine was replaced metal in engine and inverter coolant issue July 2025 117,000 my inverter coolant light came in and off several times then car through all warning lights hev check engine warning shut it down went into limp mode Towed to dealership they checked and cleared codes said it threw 13 codes but after clearing they stated nothing wrong with it As they went to pull car around it happened again this time code was knock sensor which they relaxed at no charge extended warranty They next day after picking up while at idle hev warning went in shut car off and it was gone kept driving nonissues The next day again it happened and this time the engine light stayed on Spoke with dealership they said they would charge me diagnosis charge of 208 and if it was related to what they did. It would be covered also stated if the engine light was flashing it would be covered or it isn’t the engine isn’t covered The inverter coolant is not bubbling or moving when car is on it is an inverter coolant issue that was a problem back when my first engine was repaired and should be covered I love my vehicle but I have had so many issues since getting it major things and the lighting system showing a black spot in my view as well that could not be fixed I will attach pictures of earning lights and video of coolant not circulating and the dealership filled the coolant way over the top I have to now take it back again to have it looked at

Filed Mar 19, 2025 · Engine · AZ

FAIL/MALFUNCTION 3/18/25: Internal engine failure diagnosed by local Avondale, AZ Hyundai dealership service - rod bearing failure suspected. Vehicle currently undergoing Bearing Clearance Test to affirm this or any connecting rod issues, with possible need for total engine replacement. When googling "Hyundai Sonata hybrid 2017 internal engine failure," masses of reports generate from consumers with this model, complaining of same defect, as do numerous recalls for such defects that have been mandated for the model with range of years including 2017.Yet when searching with my VIN, it says no recalls have been mandated, in spite of the undeniable, widespread identical defect. Available for inspection. SAFETY RISK: Driving on the freeway in city traffic at 70-75mph, the engine completely stopped and all dash lights lit up at once. Vehicle had to be coasted to shoulder to wait for roadside assistance. Extremely hazardous to us in vehicle and to all around us with sudden, dramatic speed change in moving, constant freeway traffic. First time: Our usual mechanics at Pep Boys did diagnostic but found nothing, the vehicle drove normally for them, yet they did our regular tune-up, oil change, etc. Two weeks later, the same event happened on freeway, identical to first time. We were very lucky that no crashes happened either time. Pep Boys advised that Hyundai investigate the issue. PRIOR SYMPTOMS: No warning lights or sounds presented until the events themselves, when the entire dash lit up. However, in the couple of months before, there were occasional, slight hesitation moments in the motion while driving at any speed. CONCERNS: 1) It seems Hyundai is on track to want to charge me for an entire engine replacement, or for whatever engine repairs they deem, e.g. connecting rods, for manufacturing defects that they are entirely responsible for, 2) no recall seems to be mandated YET for this VIN batch, and 3) too many consumers are in danger - physically and financially.

Filed Jan 18, 2025 · Engine · MA

I bought this car brand new in november 2023, by february, the car started stalling on the streets/hyway. All dash lights would come on, the vehicle would stall and is no longer able to restart. This happened 4 time in 2024. When I tow it to the dealer, they always come back with the same answer. ''the AC motor power cable has been disconnecting leading to lose of power''. They have replaced it 4x but the same problem persist. It's very scary especially whn am driving in a busy road or when am driving at night in the middle of winter. Am not sure how to move from here. Thanks.

Filed Oct 27, 2024 · Airbags, Brakes · CT

When outside temperature drops, car starts in morning with several warning lights illuminated, indicating fault with several safety systems including airbags, brake, power steering, front camera, blind-spot collision warning system, traction control and smart cruise control. Car key fobs have consistently failed, disabling access to the vehicle. The vehicles 12V reset recently failed which required Hyundai Roadside Assistance (10/25/24). According to BlueLink application, cars 12V battery has been reset dozens of times, which is information visible to the service centers. However, at several past service appointments it has been verbally stated that "problem can not be replicated" and was not documented. Problem was confirmed by Hyundai service center on March 13, 2024. Problem was not resolved at the time of service, vehicle was returned back without resolution. With temperatures now dropping at night, said issues are occurring daily with warning indicators for failing safety systems illuminating upon cold start and electrical system failing daily.

Filed Aug 31, 2024 · Engine · TN

This is the seventh occurrence of complete loss of power while driving on the interstate. The hybrid system warning activated, followed by the engine shutting down, and all dashboard lights illuminated with alerts indicating "Shut Off Engine/HEV." An 18 wheeler was pulling out from the shoulder as I was losing power and barely missed getting crushed. The former problems have all been at interstate speeds with similar accident avoided. The service history clearly demonstrates that Hyundai has repeatedly attempted to address this issue by replacing numerous critical components, including the engine, transmission, knock sensor, battery (three times), integrated brake actuation system, and smart cruise control, among others. Despite these extensive repairs, the problem persists. On this latest occasion, less than 4,000 miles and four months since the last major incident, the dealership has proposed replacing the intake manifold, EGR valve, HSG belt, and spark plugs. The belt was changed less than 20K miles ago. and I believe the spark plugs were as well. Each time my vehicle experiences this issue, it is out of commission for weeks or even months at a time, causing significant inconvenience and raising serious safety concerns. I no longer trust this vehicle and I don't believe the many recalls have successfully addressed the root cause of issues with the 2017 Hybrids.

Filed Nov 16, 2023 · Engine · 125,000 miles · FL

The contact owns a 2017 Hyundai Sonata Hybrid. The contact stated while driving 55 MPH, the vehicle became inoperable and made an abnormal sound. The contact parked the vehicle and then had the vehicle towed to a dealer after the vehicle failed to restart. Several warning lights were illuminated. The vehicle was diagnosed. The contact was informed that the engine needed to be repaired or replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 125,000.

Filed Sep 11, 2023 · Electrical, Engine · AL

This issue has happened twice in one month on my Hyundai sonata hybrid that I’ve had for less than 3 years. It is a 2017 model. While driving on the interstate, the car will stop accelerating and all warning lights will come on along with “Check hybrid engine. Turn off engine”. The dealership has yet to find out the problem and cannot tell me what the issue is both times I’ve brought it in (it’s had ti be towed both times). I cannot afford to keep paying for repairs on an almost new car along with the safety concerns of driving it. I am attaching pictures of both times it happened- noting that it is the same warning each time. It looks like multiple owners are having this issue and none has yet to be resolved.

Filed Apr 28, 2022 · Fuel system · WA

Hybrid system shut down while driving on I5 freeway at 60mph speed. Lost power completly finding myself in a very dangerous situation barely making it to the shoulder without being hit by other cars. This happened twice after 2 recalls performed on the car. Knock sensor replacement and software update. First recall was attempted by Hyundai of Kirkland WA. HEV system failure and multiple lights turned on while driving on the freeway the following day. Car was towed to Lee Johnson in Everett WA and I was told the recall was not performed correctly. After repair, same thing happened the following day. HEV failure and multiple lights turned on finding myself once again in very dangerous situation on the same busy freeway. Manufacturer is not taking this seriously. I see they have lots of vehicles with the same problem. Please investigate this failure before somebody dies. Next will file a police report. Car still at the dealership with no news on what might cause this. Has been at the dealer for over a week.