2016 Hyundai Sonata Driver assistance Problems

This vehicle has a major engine flaw; Hyundai USA KNOWS about it, and STILL will not issue a recall for EXCESSIVE OIL CONSUMPTION. First episode: October 2023 at 86,371 miles. Dealership replaced leaking valve cover gasket and changed woefully-soiled spark plugs. Still under manufacturer warranty, but I paid the balance. Second episode: FOUR MONTHS LATER (Feb. 2024; 89,078 miles), another limp mode and Check Engine lamp. The spark plugs are soiled again with oil, so the dealership changes the spark plugs again, instead of addressing the underlying issue - Excessive oil consumption. Still under warranty, yet I pay the bill...AGAIN. Episode Three: October 04, 2024. Hyundai Sonata goes into limp mode again with CHECK ENGINE LIGHT illuminating – cylinder 1 was misfiring. All spark plugs fouled again; all spark plugs replaced. Valve cover gasket was leaking, so that was replaced as well. Yup, I paid for the repairs out-of-pocket. Episode Four: May 02, 2025. Vehicle goes into limp mode again, with CHECK ENGINE LIGHT turning on. Another spark plug fouled up, so it was replaced. Ignition coil replaced as well. Episode Five: June 19, 2025. Limp mode and Check Engine Lamp illuminates yet again, so Hyundai of North Charleston (SC) initiates an oil consumption test. "...[3.5 quarts of] oil consumption is excessive...", yet Hyundai denies everything. Hyundai is actually admitting to an underlying issue but offers ZERO assistance.

NHTSA ID

11734985

Incident

Oct 1, 2023

I contact the Hyundai dealer about my 2016 Hyundai sonata. for all I know those vehicles have recalls with engine failure/stalling due to premature rod bearing wear, fire risks from malfunctioning electric oil pumps. My car is having those exact problems with the abs lights being on and is also have problems with the VVT sprocket. And the oil I called Hyundai and they said my vehicle only has a recall with the JUNCTION BOX. But my car is unable to go over 60. And is unsafe to drive and the recalls with that type of model car is the same recalls I am having and soon as I've bought the car and had it for some time i am starting to have those problems so I would like to know what’s going on because it is unsafe and I can’t even drive my vehicle I also have a blinking check engine light. I’ve wanted to report this now incase risk of a fire because I’ve did my research and realize these cars that have these type of problems are known for catching on fire.

NHTSA ID

11725141

Incident

Feb 15, 2026

The contact owns a 2016 Hyundai Sonata. The contact stated that while driving 10 MPH, the Forward Collision Avoidance: Automatic Emergency Braking system engaged abruptly while there was no other vehicle or object near the vehicle, which nearly caused another vehicle to rear-end the vehicle. The contact pulled over to the side of the road. The contact was able to continue driving. The dealer was notified of the failure, and an appointment was scheduled for diagnostic testing. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 111,000.

NHTSA ID

11686252

Incident

Sep 9, 2025

Mileage

111,000 mi

Pushed acceleration at traffic light to cross and turn into neighborhood, car started beeping frantically, 'check hev system' flashed on dash as well as 'turn off engine' while car decelerated to 1-3 mph. Battery meter bar on left side of dash completely depleted showing no battery power supply at all. Turned vehicle off for a few minutes then restarted. Put the vehicle in drive gear and same warnings appear, car doesn't even accelerate when gas pedal is pressed fully, stays at 1-3 mph crawl. Vehicle stalls out after 30 seconds, vehicle turns on but cannot start.

NHTSA ID

11685412

Incident

Aug 25, 2025

While driving, the vehicle's engine light will randomly turn on and when it does, the car will lose power; meaning, when this occurs, and I press the accelerator pedal, it does not put out the normal, expected amount of acceleration. This problem will persist until I pull over, turn off the vehicle, and turn it back on. However, this does not always fix the issue. Sometimes, when I turn the car off and turn it back on, the check engine light will still be on and I will still encounter the issue. When I brought my vehicle into my local Hyundai dealership, they had the car for 3 days, and when I called to ask what was wrong with it or what they did to fix it, they told me they could not recreate the problem and therefore, did not do anything to the vehicle. So now, I'm at an impasse where this problem is not able to be recreated, thus, unable to get it fixed, but I don't feel completely safe to drive long distances. I also own a 2013 Hyundai Sonata that experienced the same type of issue, and that engine was recalled.

NHTSA ID

11636719

Incident

Dec 31, 2024

I was driving as normal and twice about 3 min apart from each other my car went into emergency braking and stopped sudden. No red lights no warnings nothing. Also periodically my car dashboard lights will come on while driving filtering through all the hazard checks. Sometimes it stays on and sometimes it don't. Eventually dash goes back normal. Again all with no warning. Very scary

NHTSA ID

11620852

Incident

Oct 20, 2024

My car experiences issues around acceleration. It often feels like it gets “stuck” or hesitates when I try to accelerate from a stop (ex. a stoplight) or low speed or when I try to merge onto the highway. At times I have not been able to merge onto the highway at a safe speed because my acceleration gets stuck/lags at a low mph (ex. 35 mph onto a 70 mph highway). My car also excessively consumes oil. I started noticing the excessive oil consumption around 115K miles. My oil lamp does not illuminate when low on oil in nearly all cases I have been low on oil. It has only come on once (did not remain on) and oil was not present on the dipstick. I am 687 miles into my current 1,000-mile oil consumption test and have had to top off my oil twice. I started the test because my oil light flashed and oil was not present on the dipstick. The engine light came on 312 miles into the consumption test. I got a diagnostic code from AutoZone and relayed the diagnostic code to the dealership. The dealership said the code was related to low oil and to fill up with oil and bring the car to the dealership. I filled it with oil and drove the car to Luke’s Auto for an independent inspection. Their inspection found that the check engine light was from a failed e-cvvt and additional wear was present. I asked if this could be caused by oil consumption issues and they confirmed the possibility. Just over 300 miles from that incident, I checked my oil and it was once again low. I am deeply concerned about the safety of my vehicle due to it's stalling and indicators of potentially seizing. I have had near collisions on the highway due to my vehicle getting "stuck" while accelerating and unable to enter the highway at a safe speed. I am concerned about the consequences of lack of oil and failure of my oil lamp to illuminate to indicate no oil such as my engine seizing or catching fire. I have reported these concerns to the dealership since 1/2/23 and have reported my concerns to HMA.

NHTSA ID

11618951

Incident

Sep 24, 2024

Paint The paint issue with hyundai is ridiculous. I have a 2016 Hyundai sonata. No matter if i’m driving, going through a car wash, or just sitting in the yard. It’s absolutely ridiculous. Corporate and a lawyer has been contacted and the said there wasn’t anything they could do. There is thousands of cars that look the same or worse than mine.

NHTSA ID

11605000

Incident

Jul 28, 2024

The blind spot detection system needs alignment. When the blind spot detection fails it disables traction control and anti-lock brakes. The parking sensor and backup sensors should have nothing to do with the antilogue brakes or traction control. Since these items are disabled traction does not exist and anti-lock brakes are ineffective.

NHTSA ID

11579046

Incident

Feb 14, 2024

I have a 2016 Hyundai Sonata that has had repeated engine issues including stalling overheating and shutting off. The car engine also caught on Fire on [XXX} and was reported to Hyundai Consumer affairs where a case was opened. The car was in the dealership for repair until [XXX] I have a warranty that the dealership or Hyundai did not honor for the engine, power train. The services that were repaired was a replacement of a engine piece which is Continuously Variable Valve Timing) System which controls the controls the open & close timing of intake valve to improve engine performance. On approximately [XXX] 3 days after picking the car up which I had to incur the cost of the repair as Hyundai did not honor my warranty the engine as well as oil light came on The car repair included transmission oil flush and engine oil replacement per the dealership. I contacted the service manager Mr Espinoza who was overseeing my case and informed him of the continued issues he asked me to drive the vehicle in to be looked it. as we have had inclement weather in my area i was unable to take the vehicle in. On [XXX] I attempted to drive the car to the services department at Pohanka hyundai only for the engine to make a roaring noise and stall also there was no engine oil in the car wherefore it should’ve been. I contacted the dealership and told they were busy and to bring it next week. i am requesting hyundai to buyback the car. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11568180

Incident

Jan 27, 2024

INTAKE CAMSHAFT CVVT COVER AND SENSOR INTAKE CAMSHAFT CVVT OIL PLUG PLUG Exhaust Manifold I am up to date on all me oil changes and everytime I get and oil change the oil goes so fast! This has actually been happening ever since I got the vehicle. My acceleration has been decreasing when I get an oil change.

NHTSA ID

11568056

Incident

Jan 18, 2024

I am writing to bring to your attention a critical issue affecting my 2016 HYUNDAI SONATA 4 DOOR SEDAN, that warrants investigation and public awareness. Hyundai cars are currently plagued by ENGINE OIL CONSUMPTION PROBLEMS that ultimately lead to ENGINE FAILURE, due to there being NO WARNING LAMPS, MESSAGES, or OTHER SYMPTOMS OF THE PROBLEM PRIOR TO THE FAILURE. This is a concerning issue that remains largely unknown to most customers. When these issues arise, car owners such as myself, are often left with uncooperative dealerships that either deny the problem or offer minimal assistance. Even Hyundai corporate and extended warranties fail to provide adequate support, frequently citing owner negligence as a reason for denial. This occurs despite the fact that engine sludge buildup is inevitable, even with consistent car maintenance. Furthermore, I am forced to endure long waiting times for MY 2016 HYUNDAI SONATA 4 DOOR SEDAN, THAT HAS BEEN INSPECTED and, then DENIED FOR an ENGINE REPLACEMENT, and face additional months of delay for them to explain why. The situation is exacerbated by the lack of loaner vehicles and no assurance of rental reimbursement. This leaves countless individuals burdened with repair payments for stranded vehicles. My personal experience has been with Ourisman Hyundai, and many others have voiced similar grievances. Numerous complaints have been filed with the Better Business Bureau (BBB) and the National Highway Traffic Safety Administration (NHSTA), yet little action has been taken to aid the thousands of people who are experiencing the same problems to rectify this issue. It is imperative that ATTENTION is drawn to this matter as HYUNDAI'S approach to selling cars with HIDDEN ENGINE ISSUES PUTS CUSTOMERS AT SAFETY RISK AND places them in DIRE and DEADLY HARM. I implore all News Media outlets to conduct an investigation into these concerns and help shed light on a situation that demands immediate attention

NHTSA ID

11560428

Incident

Jul 17, 2023

found me driving on I 75 and I put the Cruise Control at 70 miles, instead of maintaining the speed at 70miles the vehicle accelerated to more than 90 miles per hour I had to quickly put my foot on the brake otherwise I could have an accident with the vehicle from the front, after all this happened, I felt the car was losing speed, I tried to accelerate but it did not go over 60 miles per hour. I took it to the mechanic and they did not detect anything in the vehicle's computer. This vehicle also turns off at times when you are driving and it turns off it also spend too much oil motor , I started looking for information on this model of car and I see that there are more than 550 people who have the same problem as me, this is an unsafe vehicle for the road

NHTSA ID

11553086

Incident

Aug 15, 2023

The contact owned a 2016 Hyundai Sonata. The contact stated that while her son was driving at approximately 45 mph, the check engine warning lights illuminated. The vehicle began to shake, lost power, and failed to accelerate. The driver pulled over and noticed smoke, and the vehicle caught fire. The fire department was on the scene and extinguished the fire. It was unknown if a police report was filed. There were no reported injuries. The air bag did not deploy. The vehicle was towed to a tow lot. The local dealer was not contacted. The vehicle was not diagnosed or repaired.The insurance company deemed the vehicle a total loss. The manufacturer was not contacted. The contact mentioned that in 2021, the motor may have been replaced.The failure mileage was approximately 62,000.

NHTSA ID

11551981

Incident

Oct 25, 2023

Mileage

73,000 mi

Bought the car on 08/20/2022. On 09/07/2022 we took the car back to Allen Turner because the engine light was flashing and the car would not go over a certain speed. There were metal shavings in the oil. It was throwing code P1326. They did an update on car and told me the cylinder walls were scored but the motor had a lifetime warranty no matter what happened to it. Every time we would have the oil changed, we would have to add 3 quarts of oil every 10-15 days. The vehicle stalled out at a very busy intersection nearly causing a wreck with my teenage daughter driving. Had it towed to dealership and they said it needed a new motor because it has one of the defective motors in it according to the VIN. Then they told me it was oil consumption and they could replace spark plugs and oil and it would be drivable but it would stall, it would break down and the motor will seize. It is only a matter of time. Hyundai will not honor the warranty on it because the motor is not seized up. The service manager told me to drive it until it seizes and then they would cover the engine replacement. The vehicle is not safe to operate. It is a safety hazard for anyone to drive. Hyundai will not stand behind their products when they already know it is defective.

NHTSA ID

11547720

Incident

Aug 6, 2023

This vehicle had a complete engine failure. Since it is a hybrid, when the engine shut down, the vehicle lost all power. The driver had no control over steering or brakes. The vehicle crashed through three trees and into a house. Hyundai Motors of America and NHTSA are aware of the issues with this vehicle's engine, however, this engine was already replaced. The problem was that the "limp mode" did not enact in this specific car. I brought this to Hyundai's attention at least 20 times and expressed my concern about the threat this vehicle posed to me and anyone else on the road, yet they continued to ignore me or attempt to rectify the issue. This vehicle was part of the class action lawsuit. I was told, after the seventh time the vehicle broke down (fourth time after engine replacement) that Hyundai would buy back the vehicle. That never happened. The vehicle shut down without "limp/safe mode", with an entire loss of power eight times and was brought into the dealership. Hyundai refused to help me. I knew it would end in disaster, and it did. I'm sure my vehicle is not the only one that does not have a safe mode taking effect when the power shuts off and there is no steering or brakes at 70 mph. I am using the date for the last time the vehicle shut off and the driver lost control and hit a house. However, there are eight other times this happened. I have more information and documentation if needed. I'm attaching my first claim, documents collected after that claim, the accident report (did not have photos attached, the photos are from the scene when I went there the next day), and all email conversations with Hyundai since the first engine failure. My big concern here is that even though Hyundai did try to repair the recall issues, they ignored everything else. I told them over and over that the limp mode did not work. This made it morally impossible for me to sell, even if I wanted to. They refused to help. I worry there may be others out there with this issue.

NHTSA ID

11541005

Incident

Jul 10, 2023

1. Driver side airbag. Inspected. 2.Airbag safety light is on in the console. Driver may receive injury or death if airbag does not deploy during accident. 3.Yes by Antioch NAPA Auto Center (925)757-7274 4. Yes 5. Yes. Warning light lamp is on for the driver side airbag. First appeared around 7/27/2023 Diagnostic Test: Found code B138000 driver front airbag was not responding. Air bag not registering on scan tool. Tested airbag in seat and it had .1ohm. There is a short in Airbag.

NHTSA ID

11540997

Incident

Jul 27, 2023

The contact owned a 2016 Hyundai Sonata. The contact stated that the vehicle was previously stolen, and she related the failure to Hyundai Campaign Number: 993. The contact stated while driving 25 MPH, the vehicle accelerated unintendedly to approximately 45 MPH. The contact depressed the brake pedal and the vehicle decelerated. The contact stated that the failure had been reoccurring while driving. The contact stated while driving into the driveway and coming into a complete stop, the vehicle accelerated unintendedly. The contact stated that she quickly depressed the brake pedal however, the vehicle hit the barbecue grill, and the barbecue grill struck the residence. The contact stated that the failure recurred while at the ATM, and the vehicle nearly crashed into another vehicle. Additionally, the contact stated while driving and engaging the turn signal, the turn signal unintendedly activated in the opposite direction. The vehicle was taken to an independent mechanic, where she was informed that unknown repairs needed to be completed on the vehicle. The mechanic referred her to the dealer for the repairs. The dealer was not contacted. The vehicle was not repaired. The vehicle was taken back by the auto finance company. The manufacturer was notified of the failure and advised the contact to tow the vehicle to the dealer. A case was opened. The failure mileage was approximately 53,000.

NHTSA ID

11534877

Incident

Feb 27, 2020

Mileage

53,000 mi

Motor burns oil knocks and is loosing power while driving. Constantly having to add oil between oil changes. When trying to accelerate car starts to sputter on highway. Can't get power to engine and bad rattle sounds

NHTSA ID

11523142

Incident

Apr 27, 2023

The airbag light is on, indicating that the airbox is not operating and will not go off in case of an accident. All steering wheel controls also don't work so it's impossible to adjust settings using the steering wheel or to enter cruise control at all. Previous years of this same vehicle had clock spring recalls and this appears to be the same problem so I wonder if the other recalls should be extended to this year vehicle? thanks

NHTSA ID

11512340

Incident

Mar 17, 2023

The contact owns a 2016 Hyundai Sonata. The contact stated that while driving at approximately 30 MPH and approaching a traffic light, the accelerator pedal was released, the vehicle sped up, the brake pedal was depressed, and the vehicle stopped. The contact stated the failure occurred after the vehicle was taken to the dealer for a software recall update. The contact stated that no warning lights were illuminated. The contact stated that the vehicle was taken back to the dealer where another update was completed. The contact stated that 4 days later the failure recurred as the accelerated pedal was released, the vehicle accelerated however when she attempted to depress the brake pedal and the vehicle sped up. The contact stated that she rear-ended another vehicle and stated that the driver-side air bag was deployed. The contact stated that medical attention was required for being hit in the chest by the air bag. The contact stated she was unaware if the occupants of the other vehicles needed medical attention. A police report was filed. The vehicle was taken to the dealer however a failure cause was not diagnosed. The manufacturer was made aware of the failure however, no assistance was offered. The approximate failure mileage was 20,000.

NHTSA ID

11485880

Incident

May 22, 2016

Mileage

20,000 mi

My car begins to shake cutoffs every time I use the air or drive on May 29,2022 took it to get it look at a repair shop. They diagnosed it with internal engine problems.

NHTSA ID

11467146

Incident

May 29, 2022

I HAD TO REPLACE THE BATTERY WITHIN A MONTH OF GETTING THE CAR, THEN AGAIN 6 MONTHS LATER. THE RADIO AND BACK UP CAMERA WENT OUT AFTER A YEAR OF HAVING IT. THE HEADLIGHTS KEPT GOING OUT, AND EVENTUALLY THE WIRING STARTED BURNING. BATTERY WENT OUT AGAIN ALONG WITH THE ALTERNATOR NOW. MID DRIVE THE LIGHTS WOULD CUT OFF, SPEED THERMOMETER WOULD BE OFF BY 15, AND ALMOST IMPOSSIBLE TO TURN THE WHEEL.

NHTSA ID

11408127

Incident

Feb 27, 2021

REAR BRAKES ARE NEVER APPLIED EVENLY. EVERY TIME CAR BRAKES IT LURCHES FORWARD BETWEEN TIMES WHEN IT FEELS LIKE THE BRAKES ARE ENGAGING. THIS HAPPENS WHEN THE VEHICLE IS IN MOTION ON BOTH CITY STREETS AND HIGHWAY. WHEN GOING ABOVE 45 MPH THE STEERING WHEEL WILL ALSO SHAKE AFTER BRAKES ARE ENGAGED.

NHTSA ID

11406828

Incident

Jul 3, 2019

Mileage

36,000 mi

THE ENGINE LOSES POWER. I ALMOST GOT HIT MERGING ONTO THE HIGHWAY. THE OIL LIGHT KEEPS COMING ON RIGHT AFTER I GET AN OIL CHANGE. THE SENSOR FOR LANE DEPARTURE DOES NOT WORK. THIS CAN CAUSE DEATHS IT NEEDS TO BE FIXED HYUNDAI OF GREER WILL NOT FIX THE ISSUE. I ALMOST DIED. I HAVE STOPPED PAYMENTS ON THE VEHICLE AND I HAVE PURCHASED A NEW ONE. I REFUSE TO DRIVE THIS DEATH TRAP.

NHTSA ID

11399958

Incident

Oct 7, 2020

Mileage

80,000 mi