Hyundai Sonata Complaints (2017)

881 consumer complaints on file.

#11719775February 23, 2026
ENGINE
I have a 2017 hyundai sonata sport,it started using a lot of oil,one day I was driving and it just lost speed and the car just started jerking. I checked the spark plugs and oil had gotten on them. I changed the spark plugs,drove it for about 2 weeks and it did it again. I was constantly having to put oil it and changing the spark plugs every 2 weeks. The check engine light would come on every time this happened. I took it to a hyundai dealership they first wanted to do a oil test which they realized would not work because it was using to much oil ,second they wanted to do some other test that would cost almost $300 dollars which would still not determine if I would be eligible for the recall. Can i get some help please,please
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719428February 20, 2026
UNKNOWN OR OTHER, ELECTRICAL SYSTEM
Here is your updated review with that included: ⸻ I am very disappointed with Hyundai Motor America and the service I received at Hyundai of Renton. I own a 2017 Hyundai Sonata and received a letter about a required software update and ignition cylinder protector due to known theft issues. I went to the Renton dealer for the recall service. They performed the software update and were supposed to install the ignition cylinder protector. Unfortunately, my car was later stolen because of this exact issue. The ignition was damaged during the theft, and I had to replace it myself just so I could drive the car. When I returned to the dealer, they refused to install the ignition cylinder protector, saying the ignition was broken. It was broken because of the theft — which happened due to Hyundai’s known defect. After the recall software update, my key fob also stopped working properly. I went back to the dealership, and they refused to fix or properly reprogram my key fob. On top of that, the service manager, John, was very rude and unprofessional. This has been the worst experience I’ve had with a vehicle and a dealership. Because of this situation. Very disappointed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717972February 14, 2026
STEERING
While driving around 45 mph, the steering wheel locked up and car came to a hard stop. Luckily cars swerved to avoid me. This was the second time it happened. The first time I was in a parking garage and the steering wheel locked up. After restarting the vehicle, the steering wheel worked again. The dash showed no fault codes or engine light. I found out there is a service bulletin and took it in to the dealer. Once there, the confirmed it was the power steering and is covered by the service bulletin and extended warranty. However, because the bulletin requires the dealer to clear code to try and reproduce it, I have to pick up vehicle because they could not reproduce the fault code. So now I have to drive the vehicle knowing their is a service bulletin for the problem and have it happen again before it is fixed. There is an extremely high likelihood of injury considering you lose all power at wheel and car continues to move.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11716603February 8, 2026
ENGINE
My 2017 Hyundai Sonata Hybrid has a permanent and recurring DTC P1326 (Knock signal range/performance) from the Knock Sensor Detection System (KSDS), indicating potential connecting rod bearing wear in the Nu 2.0L engine. The vehicle enters limp mode (reduced power, limited acceleration/speed) on the highway under load, with hard engine vibration, tinkling/knocking noise from under hood, and significantly reduced MPG. These symptoms create a serious safety risk: sudden loss of power at highway speeds (e.g., 50+ mph) makes it difficult to maintain speed, merge, or avoid hazards, increasing crash risk or stranding in traffic. In rare cases, bearing wear can lead to engine seizure or failure. The problem first appeared summer 2024 at approximately 115,000 miles. The Check Engine Light illuminates (cristmass tree), and limp mode triggers during highway driving. I have an OBD scan showing confirmed, pending, and permanent P1326, plus related hybrid communication codes (U0293, U1004) likely secondary to the protection mode. The vehicle has been inspected multiple times (four visits) by a Hyundai dealer. Each time they scanned the code, performed basic checks, but stated “engine is working normal, no road vibration, nothing” and did not resolve the issue. The code returns immediately after clearing. I replaced the knock sensor, engine mounts, spark plugs, ignition coils myself—did not fix it. Dealers did not perform the full bearing clearance test or follow TSB 22-01-023H (Service Campaign T6G) procedure as required for this known issue (related to Recall 209 and Campaign 966). The component (engine/connecting rod bearings) is still in the vehicle and available for inspection. No police, insurance, or other parties have inspected it beyond the dealer. This matches a widespread known defect in 2011–2019 Sonata Hybrids (bearing wear triggering P1326/limp mode).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11716201February 6, 2026
ENGINE
Car just sputtered and then the engine stopped working in cyclinder 2
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11716294February 6, 2026
ELECTRICAL SYSTEM, ENGINE, UNKNOWN OR OTHER
This car is becoming more of a headache than it’s worth. Turned the car on, My car started shaking and my check engine light came on. then I got this message “A possible condition with your engine control system has been detected on a 2017 Hyundai Sonata”
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11715671February 4, 2026
ENGINE
My car stayed with up to date oil changes and everything. One day I noticed it was leaking oil and had to stay on top of adding oil. When took to a mechanic they said my motor was blown and needed a new one. I took very good care of this car and it’s crazy that I need a new motor after babying the car.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11715392February 3, 2026
STEERING
Was just driving and lost steering, basically very hard to turn the wheel. Traction control light and a red steering wheel light came on.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713116January 24, 2026
ENGINE
My 2017 Hyundai Sonata is exhibiting a severe metallic knocking noise and metal debris in the engine oil—primary indicators of the Theta II engine defect (NHTSA Campaign 17V578). These symptoms indicate imminent engine failure, posing a significant stall and crash risk. On or around 8/20/25, I took the vehicle to Earnhardt Hyundai-San Tan. I informed the technician of the oil burning and metal shavings. They refused to perform the recall repair and charged a $200 diagnostic fee for an inspection related to a federally mandated safety recall. Under federal law (49 U.S.C. Chapter 301), recall remedies must be provided at no cost to the owner. Furthermore, components were not reassembled correctly during the inspection. The vehicle is now leaking oil onto my driveway and has been rendered inoperable. It has not been driven since I picked it up on August 25, 2025. I am requesting that Hyundai be compelled to perform the recall remedy and reimburse the unauthorized diagnostic fee.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711880January 19, 2026
ENGINE
Please see the attached paperwork and I have more if needed. I am not receiving any help from the local Hyundai dealership in which I purchased the car, and I have reached out to the main Headquarter. This is the 2nd Hyundai I purchased, and I was not made aware of the oil consumption issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711950January 19, 2026
ENGINE, POWER TRAIN, UNKNOWN OR OTHER
My vehicle has a documented excessive oil‑consumption defect. After a 1,000‑mile oil‑consumption test performed by a Hyundai dealership, the engine was found to have consumed 2.8 quarts of oil, which is far above normal and poses a safety risk. The dealer referenced TSB 23‑EM‑008H and recommended a chamber cleaning but could not guarantee it would resolve the issue. Hyundai Motor America declined to cover the repair and refused to escalate my case. This level of oil consumption is consistent with known Theta II engine defects that have led to engine seizure, stalling, and fire in other vehicles. I am reporting this as a safety concern due to the risk of sudden engine failure while driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711980January 19, 2026
ENGINE
The 2017 Hyundai Sonata has had an ongoing engine malfunction defect that is causing engine knocking, stalling, and smell and rapid depletion of oil. The continuous issues are concerning especially when the car is not driven on a regular basis as it is utilized as a second vehicle. This has been a noticeable issue for quite sometime now. I have taken the car to the Hyundai dealership on multiple occassions after notably heavy oil consumption in a short time period in between scheduled oil changes. I am told by the dealership that it is evident that the engine is rapidly processing and burning oil inappropriately from a possible manufacturing defect recall related to connecting-rod bearing failure that was issued by Hyundai for various Hyundai models. The damaged engine may stall, increasing the risk of a crash. In addition, oil may leak onto hot exhaust components, increasing the risk of fire.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711495January 16, 2026
AIR BAGS, ELECTRICAL SYSTEM, STRUCTURE:BODY
I was involved in a severe motor vehicle collision in a 2017 Hyundai Sonata. The airbags failed to deploy during the crash. I sustained serious injuries and was transported from the scene by EMS. This vehicle has known safety recalls, and I believe the airbag non-deployment may indicate a safety defect.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11710129January 10, 2026
ENGINE
Manufacturer has refused engine replacement under federal KSDS recall settlement without providing causation proof. Owner has maintenance records. Request NHTSA compliance review.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11709728January 8, 2026
ENGINE
Manufacturer is refusing recall engine replacement alleging neglect without proof of causation. Vehicle has documented maintenance. Denial appears improper under recall compliance law.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708495January 3, 2026
STRUCTURE:BODY, UNKNOWN OR OTHER
The vehicle’s dashboard continuously displays a “hood open” warning even though the hood is fully closed and securely latched. The hood has been physically inspected and confirmed to be closed, yet the warning persists. The issue appears to be related to a faulty hood latch sensor or switch, which is part of the hood latch assembly. The warning is inaccurate and does not reflect the actual condition of the hood. I am requesting that NHTSA review this issue for potential investigation, as it may represent a defect in the hood latch sensor system on the 2017 Hyundai Sonata that could affect multiple vehicles and pose a safety risk.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708579January 3, 2026
AIR BAGS, POWER TRAIN, FORWARD COLLISION AVOIDANCE: WARNINGS
Airbags did not deploy no indicator light came on before nor after I was struck from my driver side front area and yes it is available for inspection upon request. My safety along with my sisters safety was put at risk due to the negligence and cheapness of the dealership I purchased the car from also from there misleading information and improper inspection before selling me the car Car has not been reproduced or confirmed The car was inspected by a third party appraisal company for damages amounts There were no lights on at all before the accident and I am pretty certain that the dealership cleaared the codes before selling me the car
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11708351January 2, 2026
ENGINE
Cylinders in the engine are misfiring causing car to shake. Pistons in the engine are having trouble keeping the air compressed so psi to continue to decrease causing the misfire.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11707642December 29, 2025
ENGINE
My 2017 Hyundai Sonata Sport Limited 2.4 has a known engine defect causing excessive oil consumption. The vehicle was at an authorized Hyundai dealership for the oil consumption test and had been approved for a new engine replacement. Prior to the repair, I completed $2,300 in maintenance, specifically an oil combustion cleaning and spark plug replacement, which the dealership said was required to perform the oil consumption test. While the vehicle was in the dealership’s custody, it caught fire on 12/19/2025 at World Hyundai Matteson. No one was injured, but the car was destroyed. This occurred while the vehicle was under warranty repair, creating a serious safety risk. I am submitting this complaint to document the fire and the associated safety issue with this engine defect.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11706062December 19, 2025
STEERING, ENGINE
My car steering is locking up while driving on highway and regular roads. Resulting almost in not being able to control and crash. I also had a recall for my engine which was already replaced and now having same issue with oil burning and not leaking.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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