Hyundai Sonata Complaints (2017)

881 consumer complaints on file.

#11692882October 12, 2025
ENGINE
I noticed my oil was pretty much empty at one point. I don't know how long it had been empty but I had been driving the car for a long time. But I usually do my oil changes every 5000 miles so the fact that the oil was empty is definitely not a good sign. I did an oil change and replaced the drain plug in case that was the issue. I checked for leaks and there weren't any. After probably a couple thousand miles, the oil was out again. I took it to a dealership and the guy at the service desk said "I shouldn't tell you this, but a lot of them have that problem. You should get rid of it before the engine fails." Hyundai knows that it's an issue but they refuse to fix it or do a recall. It consumes oil like crazy and there's even a Facebook group called Hyundai oil consumption recall with about 5000 people in it. If the oil in the engine drains to empty, the engine could seize up and put people in danger. No warning lights have come on when the oil has run out.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11692773October 11, 2025
ENGINE
MY 2017 Hyundai Sonata has excessive engine oil consumption. Despite multiple inspections and tests performed by Hyundai dealerships in 2023, as well as PCV replacement by a licensed independent mechanic, the vehicle continues to consume approximately 1 quart of oil every 60-100 miles. No warning lights appeared, but this persistent consumption created a safety risk ,as low oil levels can lead to engine damage or failure while driving, endangering myself and passengers, and others on the road. The issue has been confirmed through oil consumption tests at Hyundai dealerships, and it remains unresolved despite attempted repairs. The problem is verifiable and reproducible through oil level checks and documented service history.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11691512October 5, 2025
ENGINE
HYUNDAI OIL CONSUMPTION RECALL. MY 2017 HYUNDAI SONATA BURNING OIL I CONSTANTLY SCHEDULE OIL CHANGES. WHEN WILL NOTICE FOR REPAIR BE SENT TO MY ADDRESS TO FIX THIS ISSUE. MY DAUGHTER DRIVES THIS VEHICLE ALSO. SERIOUS ISSUE NEEDS TO TAKEN SERIOUSLY.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11691519October 5, 2025
ENGINE
Purchased the vehicle and immediately noticed a drip in the driveway. I was concerned so I started checking the dip stick. I booked a diagnostic appointment with a Hyundai Service Center. I wanted to be sure I purchased a quality vehicle. Upon what i thought was a complete diagnostic, a cracked oil pan was discovered. I agreed to purchase and pay out of pocket, everything else had checked out. I was told I could drive while I waited for the pan to come in, service was scheduled. The car never made it back. I continued to check the dipstick but while driving on a very busy interstate, the engine light went on and lost power. I barely managed to get to the breakdown lane. A complete safety hazard. I was towed to the closest garage where the owner suggested he see’s 3-4 of these a week. He would not touch it, have it towed to Hyundai. I paid for another diagnostic and now a flat bed tow. Key Hyundai of Salem NH accepted the vehicle. I paid another $498 to have an “engine tear-down” send a detailed finding report to Corporate. I called Corporate and filled my own case number. I was denied by Corporate, I was told I was a subsequent owner. The dealership didn’t match, I’m denied because the engine didn’t seize because of Rod issue. Well Hyundai is praying upon consumers. They knowingly initiated the KDS Recall and installed sensors to place a vehicle in “Limp Mode” so the rod isn’t the issue and they deny coverage. I paid a private mechanic verify cylinder 3 has low compression. Had the car not gone into “Limp Mode” the rod bearings would have failed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11690842October 1, 2025
ENGINE
My car is needing an oil change almost every 3 weeks at this point. Mechanics say there is no leak and there may be a recall for GDI engines that are burning oil very fast. This is a reoccurring problem and would love to find out if I can get this recalled like I seen other 2017 Hyundai Sonatas.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11690573September 30, 2025
ENGINE
We are the original owners of this vehicle. Over the past year we have been having to put quart(s) after quart(s) of full synthetic oil into this vehicle. There are no leaks anywhere that the mechanic can find and no burning of oil from the exhaust. We don't drive the vehicle many miles but have to put oil in at least every few weeks. The mechanic stated the last few times we have taken the car in to get looked at that it is a known issue with this make/model. He stated there was nothing he could do and we needed to contact the manufacture. We have tried on numerous occasions to make contact as well as the dealership has as well with no resolve.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11690157September 28, 2025
ENGINE
I Purchased my 2017 from Hyundai motors of America in 2017. I am the only owner. I Took the care in for a recall for Campaign 953: ECM & CLUSTER UPDATE-ENGINE MONITORING LOGIC PRODUCT IMPROVEMENT to have a a knock sensor placed on the engine to monitor the vehicle for signs of engine failure in 2022. The car has been showing signs of engine failure since the knock sensor was placed on the vehicle and Hyundai claimed that the knock sensor was bad and replaced in. Last week while I was driving the car ok the interstate at 70 miles per hour, the engine stopped running completely while driving. The check engine light did not illuminate until after the vehicle’s engine stopped running. The vehicle lost its ability to accelerate while driving. I was almost hit by a semi as I tried to guide the disabled vehicle to the emergency lane. I took the vehicle to one of the Hyundai dealerships for an inspection. The inspection shows engine failure due to internal failure. The knock sensor from campaign 953 failed to detect any engine problems. I Called hyundai motors of America and was given a case number (41539529). Even though the dealer reported to Hyundai motors of America about the engine failure, Hyundai motors of America is refusing to fix the vehicle due to mileage even though there is an extended warranty through campaign 953. This company is a fraud!! The company wants me to pre-approve authorization payment for them to replace my engine at my expense regardless of the recall, and their negligence!! They are placing people lives at risk.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11690137September 27, 2025
SEAT BELTS
Front two seat belts are difficult to latch to buckles. Even when they are buckled while the car is in motion they tend to unlatch by itself.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688690September 21, 2025
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688043September 18, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2017 Hyundai Sonata. The contact stated that while operating the vehicle, there was an abnormal knocking sound coming from the engine compartment with the check engine warning light remaining illuminated. The vehicle was taken to the local mechanic who discovered that there was no oil in the engine, even though the contact had recently added oil. The cause of the failure was not yet determined, and the vehicle was not yet repaired. The manufacturer and local dealer were notified of the failures. The failure mileage was 109,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688064September 18, 2025
ENGINE, FUEL/PROPULSION SYSTEM, SUSPENSION
To whom it may concern, I have own my vehicle since Jan 2018, which was purchased from the dealership's owner w/less than 10k miles. Maintenance has been performed iaw Hyundai's recommended schedule. However, yesterday, I was informed that my vehicle needed a new engine and other replacements totaling $13,934.89. This is OUTRAGEOUS. How can a well kept vehicle w/106445 miles, need such replacements? Thus your assistance will be greatly appreciated.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688145September 18, 2025
ENGINE, UNKNOWN OR OTHER
My 2017 Hyundai Sonata SE is experiencing symptoms consistent with connecting rod bearing failure covered under Hyundai’s KSDS extended warranty program. June 22, 2019: KSDS software (Campaign 953) installed, qualifying the vehicle for Hyundai’s 15-year/150,000-mile warranty coverage for bearing failures. August 2022: Campaign 208 engine recall performed. Hyundai’s record shows Aug 15, 2022, while Wright Way Hyundai’s service history shows Aug 13, 2022 (discrepancy unresolved). March 2025 (100,238 miles): Vehicle went into limp mode with tailpipe smoke and loss of power. It was towed to Wright Way Hyundai, which kept it for several days but returned it with “no issue found.” The smoke continued. June 5, 2025 (103,996 miles): Oil change performed. August 27, 2025: Oil light illuminated, dipstick showed no oil. Vehicle now exhibits severe drivability issues consistent with bearing damage. Hyundai has incorrectly tried to reframe this as an oil-consumption issue and directed me to pay $600 for a combustion chamber cleaning. My issue is not oil consumption — it is a bearing-related failure already covered by warranty. Hyundai’s obligations include a no-cost inspection/diagnosis for connecting rod bearing failure, yet I have been denied that process. Despite repeated written requests, Hyundai continues to attempt phone communication instead of email, even addressing me by the wrong name in correspondence, which suggests reliance on standardized or generic responses. I have exclusively maintained the vehicle at Wright Way Hyundai, following Hyundai’s service schedule. I am resorting to filing this complaint because after weeks of email correspondence, Hyundai’s corporate agent refuses to help and the manager insists on only calling by phone — which I will not answer out of concern they will attempt to mischaracterize or dismiss my complaint verbally. This failure poses a safety risk because the vehicle has lost power suddenly and requiring restart.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687630September 16, 2025
ENGINE
I am constantly seeing my oil light coming on. I have placed at least three quarts of oil in the last month while driving around only 1,200 miles. I took vehicle to mechanic who explained this is known issue with the vehicle I own.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687109September 13, 2025
ENGINE
Oil consumption, lossing one quart of oil per week, I drive 250 miles per week.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686888September 12, 2025
SERVICE BRAKES
Vehicle: 2017 Hyundai Sonata Hybrid – 131,700 miles – Maryland registered While driving, my vehicle displayed the warning “Check Hybrid System. Turn off engine.” The dealer diagnosed a failure of the Hydraulic Control Assembly (ABS/Brake Control Unit). This is a safety-critical braking system. The vehicle is unsafe to drive until repaired. Hyundai previously issued recalls for this same component on earlier Sonata Hybrid models (2011–2015), due to risk of brake failure and fire. My 2017 vehicle is experiencing the exact same failure, yet is not currently included in the recall. This defect should be investigated as it compromises safe braking performance and puts drivers and passengers at risk. I am requesting that NHTSA review this issue and consider expanding Hyundai’s recall coverage to include later model years like mine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686903September 12, 2025
FUEL/PROPULSION SYSTEM
While driving car stuttered check engine light and check hybrid system flashed. Check engine lights stayed on until getting home. Next day. I scanned and code p0b68 was set.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686681September 11, 2025
ENGINE, POWER TRAIN, UNKNOWN OR OTHER
What component or system failed or malfunctioned, and is it available for inspection upon request? The engine in my 2017 Hyundai Sonata Sport is defective. Oil pressure failed testing, oil contamination was found on the oil pressure sensor and connector, and the vehicle has experienced excessive oil issues. The engine is still in my possession and available for inspection upon request. How was your safety or the safety of others put at risk? The vehicle has gone into limp mode on the highway, which caused a sudden loss of power and created a dangerous situation in traffic. The car also shakes, misfires, and loses power unexpectedly, which could lead to stalling or loss of control at highway speeds. I do not feel safe driving the car. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. Multiple Hyundai dealerships have inspected the car. One confirmed low oil pressure and oil contamination at the sensor. Previous visits dismissed the oil warning and charged me for oil replacement instead of identifying the underlying defect. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Yes. The vehicle has been inspected by Hyundai dealers multiple times. I also have two inspection reports from the same dealer just two weeks apart with contradictory findings the first showing no oil issue, the second confirming oil contamination and failed oil pressure. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Yes. The oil warning light and check engine light have both come on. The vehicle has gone into limp mode, and symptoms have included shaking, misfiring, rough idling, and loss of power. These issues began months ago and have continued despite repeated service visits.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685254September 5, 2025
ENGINE
Engine is burning up full tank of oil in a few days there are no oil leaks coming from the car. The car has been expected and worked on by multiple mechanics. The engine lights keeps coming on.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685372September 5, 2025
ENGINE, ELECTRICAL SYSTEM
The camshaft position sensor internal rubber plug is faulty and it allows oil to leak into the sensor housing. Ruining the sensor and the brushes and housing. It causes the check engine light to come on the idle races and car takes off on its own. Can’t drive it because it’s to dangerous. Once it takes off then it goes into limp mode and you can’t pull out because of no power. 40000 miles. The internet is full of owners having the same problem
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11684782September 3, 2025
ENGINE
Excessive amount of oil burning. Was told that this vehicle had a engine recall, and I am trying to see what I can do about it before it blows up.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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