2016 Hyundai Sonata Hybrid: check engine light

Filed Oct 7, 2026 · Brakes, Electrical · 88,385 miles · NV

The contact owns a 2016 Hyundai Sonata. The contact stated that while driving 70 MPH, the vehicle went into LIMP Mode and decelerated. The check engine warning light and the battery warning light were illuminated. The failure was a recurring failure. The vehicle was towed to the first dealer, and the contact was informed that an oil change was needed. The failure persisted, and the vehicle was taken to another dealer and was diagnosed and DTC: C222908; was retrieved. The manufacturer was contacted by phone and made aware of the failure. The failure mileage was approximately 88,385.

Filed Oct 9, 2025 · Electrical, Engine · FL

The car will randomly lose acceleration and jerk forward. It will make a beeping noise while the hev system warning flashes on the dash. It also says to turn off engine. While the warning is flashing and engine light is on it goes into a limp mode and you have limited acceleration. It has almost caused multiple wrecks when I go to acceleration from turning or at lights in traffic because I cant go over 20-30 mph. I have turned the car on and off and the hev system and engine light turns off and the car continues to work normal. It eventually comes back on and does the same loss of power/hev warning. It will be random and does not matter on how fast you are going to trigger the warning lights and loss of power.

Filed Feb 24, 2025 · Engine · 180,000 miles · CA

The contact owns a 2016 Hyundai Sonata Hybrid. The contact stated while driving approximately 65 MPH, the check engine warning light was illuminated, and the vehicle stalled. The contact was able to exit the highway; however, the contact was unable to restart the vehicle. The contact had the vehicle towed to a dealer to be diagnosed. The vehicle was diagnosed, and it was determined that the engine needed to be replaced. The vehicle was not repaired. The contact stated that prior to the engine failure, the engine had been replaced two years prior. The manufacturer was not informed of the failure. The failure mileage was approximately 180,000.

Filed Sep 17, 2024 · Electrical, Engine · OH

While on the highway vehicle started shaking violently, flashing engine light then service hybrid system along with every light on the dash! Car still running poorly, stiff steering very hard to slow down to get to safety! By the time I was able to pull over the engine was knocking and a burning smell was coming from the engine compartment. I popped the hood shut the car off , the exhaust manifold and converter(in one together) was so hot it was glowing! I’m thankful I was able to get to safety without it catching fire because it was on its way there! I called for a tow and sent it to the dealer where Hyundai is replacing the engine.

Filed Apr 22, 2024 · Engine, Fuel system · 147,000 miles · NJ

The contact owns a 2016 Hyundai Sonata Hybrid. The contact stated while driving approximately 60 MPH, the check engine warning light illuminated, and the message "Check Hybrid System, Turn Off the Engine" was displayed, and the vehicle was shaking while decelerating. The vehicle was towed to the dealer where it was diagnosed with the Technical Service Bulletin: 198. The Technical Service Bulletin was completed; however, the failure recurred. The vehicle was towed to the same dealer where it was diagnosed with a drained battery and catalytic converter failure. The vehicle was repaired; however, the failure recurred. The vehicle was towed to the same dealer. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 147,000.

Filed Mar 30, 2023 · Electrical, Engine · IL

HEV turn off engine light pops up WHILE driving. I could’ve been on the highway or the middle of no where and have to turn off my car, just to turn it back on and it seems fine? This has happened a total of 5 times since owning this vehicle, and I’ve gotten all code on the car fixed about a month ago.

Filed Feb 21, 2023 · Engine · 163,000 miles · CA

The contact owns a 2016 Hyundai Sonata Hybrid. The contact stated that while his wife was driving at a slow speed out of the driveway, she heard a knocking sound coming from under the hood. The check engine warning light was illuminated. The vehicle was towed to the dealer where it was diagnosed that the engine needed to be replaced. The vehicle was repaired; however, the failure recurred. The contact stated that after the vehicle was retrieved from the dealer, the check engine warning light illuminated after 300 miles. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 163,000.

Filed Aug 9, 2022 · Engine · NC

My vehicle first went into limp mode and stalled while driving December 2021. Vehicle was taken to Dealership in Alpharetta, GA. I was advised the knock sensor needed an update. The update was completed but the vehicle continued to go in limp mode and stall again March 2022 after driving less than 1000 miles since previous repair. The vehicle was taken to dealership in Wake Forest, NC. This time there was no update for the knock sensor so I was advised they would need to replace knock sensor but it was on backorder until end of May 2022. The knock senor was replaced picked up vehicle and engine light came on by the time I had drove 50 miles and vehicle started to go in limp mode and stall again and car started shaking an bad vibration. Drove the car next morning and it put me down again going into limp mode, stalling, whole dash board lit up every warning light on and dinging, car shaking and made loud noise had to have towed back to dealership. This time dealership claim it came from misfire on cylinder 3 but that doesn't explain all the issues. I was called to pick up car again June 2022 car had bad vibration, knocking, still going into limp and stall mode, hybrid system warning light came on again, gear sticking not changing like it's supposed to had towed back to dealership. This time dealership replaced other 3 cylinders picked up car July 2022. Did a test drive advised car is still stalling, gear still sticking, vibration still , air not cooling and hybrid indicator needle bouncing back and forth from power to 80 never stabilized. Dealership claims can't find anything wrong. I have almost been hit 10 times since December 2021 because of vehicle going into limp mode while driving this is very dangerous to be going 55 to 70 and vehicle drops speed back to 10 all of a sudden in traffic

Filed Jul 28, 2022 · Electrical, Engine · TN

The car requires a quart of oil every 1 to two weeks. Brought it to multiple dealerships and was never given a reason why. Car was making knocking noises anytime driven at 45 or below and sometimes higher. We believe it had to be about the recall Hyundai has advised us about multiple times. We brought it to them on Friday July 22nd. They updated the Hybrid system and we left. Driving the car to work July 27th and the car went into “limp” mode and stated that there was a issue with the hybrid engine and to shut the car off immediately. I was able to pull the car off the road and turn it off. The engine light constantly blinked when the error happened. When I shut the car off and turned it back on, it the same hybrid error shows up on the screen again. We had to have it towed to the same dealership we went to the previous day. They have to diagnose the issue but it might take weeks because they have one hybrid tech.

Filed Jun 22, 2022 · Electrical, Engine · TX

I have a 2016 Hybrid Sonata [XXX], the dash started flashing and said...... HEV trouble! STOP the engine now! Now I have a orange engine light. I brought the car to the dealer. They will look at it and contact me. This car cost me plenty, last year they made me pay for a new engine, it would eat up a quart of oil every two weeks. That is 2 quarts a month. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Filed May 25, 2022 · Engine · 120,000 miles · NY

The contact owns a 2016 Hyundai Sonata Hybrid. The contact stated while driving approximately 55 MPH, the vehicle was shaking. The hybrid battery, PHEV system, and check engine warning lights were illuminated. The vehicle stalled. The vehicle was towed however, the independent mechanic was unable to determine the cause of the failure. The vehicle was then towed to the local dealer, who diagnosed a failure with the engine and catalytic converter. The engine was replaced. The failure reoccurred. The manufacturer was notified of the failure. The approximate failure mileage was 120,000.

Filed May 11, 2022 · Engine · FL

Recall [XXX] : Engine Inspection / Replacement ([XXX]) In the month of Oct 21, my Hyundai sonata hybrid, had severe engine issues and stalled. Upon inspection by dealer, it was determined, it needs engine replacement as there was a recall for these engines. After 3 months of waiting, in January 2022, I received my car back supposedly with the new engine. today [XXX] my car has stalled again with a similar engine issues and I have towed my car to the same dealer (DORAL HYUNDAI : Miami Florida) for inspection. fortunately i was not injured or ended up in an accident. the car just stalled suddenly with red lights on for every parameter along with engine light. luckily i was on the onramp and not in between the freeway. still was a dangerous situation as cars barely managed to save from hitting me when the car suddenly slowed down and stopped I feel, Hyundai didn't perform their replacement part effectively or efficiently. Probably replaced the car with a similar faulty engine. I request you to please investigate this matter my name is [XXX] and my email id is [XXX] and [XXX]. my cell phone number is [XXX]. thanks, [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).