Hyundai Sonata Complaints (2018)

384 consumer complaints on file.

#11545622September 20, 2023
ENGINE
The contact owns a 2018 Hyundai Sonata. The contact stated while driving 65 MPH uphill, the vehicle shuddered. The check engine warning light and low oil pressure warning light were illuminated. The contact was able to pull to the side of the road and turned off the vehicle. The vehicle was towed to an independent mechanic, where an oil change was performed, and the spark plugs were replaced. The vehicle was repaired. The contact related the failure to NHTSA Action Number: DP22003 (Engine). The dealer was notified of the failure. The manufacturer was not notified of the failure. The failure mileage was approximately 77,347.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11544744September 15, 2023
ENGINE, POWER TRAIN
My car is misfiring, hesitating accelerating, severely shaking and vibrating which you can feel in the pedals and steering wheel, and the check engine light is on. This issue has been ongoing for over a week already. When the engine light first came on on 9/7, i pulled over on the side of the road and had a mobile mechanic check it out. The code was coming up as a bad ignition coil in cylinder 1. When he took out the coil and spark plugs, he saw scoring on the spark plug from oil as well as oil being consumed in the cylinder itself which has been causing my vehicle to misfire. The mobile mechanic stated on his invoice that I need a new engine. I took my car to Faulkner Hyundai on 9/11 and they said the best they can do is an oil consumption test even though they personally know I need an engine as well. I have not been able to drive the vehicle due to the ongoing issues, I am afraid for my life and safety that god forbid the car stalls out on the highway while I am traveling to or from work I could get into a major accident. They are putting my life in jeopardy.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11543806September 11, 2023
ENGINE
The contact owns a 2018 Hyundai Sonata. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to an independent mechanic, who retrieved DTC Code: P1326 and related the failure to Technical Service Bulletin: 20-01-024H-1 (Theta GDI Engine DTC P1326 - Engine Inspection / Replacement); however, the vehicle was not covered under the TSB. The vehicle was not repaired. The manufacturer was made aware of the failure but informed the contact that there was no recall associated with the VIN. The failure mileage was approximately 59,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11541687August 30, 2023
ELECTRICAL SYSTEM:STARTER ASSEMBLY, POWER TRAIN
The contact owns a 2018 Hyundai Sonata. The contact stated that while driving approximately 60 MPH the vehicle suddenly began sputtering and then completely stalled. The contact had to coast to the side of the road and noticed the check engine light illuminated. After approximately 10 minutes, the vehicle was able to restart. When starting the vehicle there would be a sputtering followed by the vehicle shutting off. The failure began to occur while idle as well. The contact stated that while attempting to reverse out of a parking spot the vehicle suddenly accelerated forward instead. As a result, the vehicle ended up crashing into a concrete light post. The air bags did not deploy. There were no injuries or medical attention needed. The vehicle was able to be driven after. No police report was filed. The vehicle had been towed to the dealer who had stated that the starter relay issue may be the cause, however, because of not being able to duplicate the failure they were unable to give an official diagnosis. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 86,000.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11541035August 27, 2023
UNKNOWN OR OTHER
UNKNOWN. I noticed that there was a check engine light on and I took it to autozone to have it checked out, they told me that it was coming back with the code of an o2 sensor. I thought nothing of it until it started not wanting to start right. On July 1, 2023 I took my car in to the dealership for an oil change and they never said anything about why my car was doing a delayed start. It would eventually start but it took at least a minute. I bought a new battery from walmart to put in my car so that it would not do the delayed start, but it kept doing it anyway. Finally decided to take it to a mechanic and the first time that he started it took at least a minute, he realized that he didn't have his computer (code reader) with him so he turned it off. When he returned with the code reader he plugged it in and started the car then it started smoking, smoking turned into fire that caused the entire underside of my hood to melt including engine, electrical harness, belts, battery and much more. If it wasn't for the mechanic's quick thinking by putting out the fire while calling 9-1-1, the fire would have gone to the fuel tank and exploded. Yes, the safety of others was put at risk.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11540437August 23, 2023
ENGINE
Oil leaking, replaced gaskets Oil continues to burn at a fast rate. Putting up to 6qt oil extra every month. Oil changes have been regular. Dealership only cleaned engine and told me that was all they could do.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11539612August 20, 2023
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: WARNINGS
RIGHT WHEEL SPEED SENSOR FAILED IN FEB 2023 NOW LEFT REAR WHEEL SENSOR HAS FAILED IN AUG HAS 50486 MILES
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11539631August 20, 2023
ENGINE
While I was driving the car shut off by itself.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11537064August 8, 2023
POWER TRAIN
transmition problem , stop and go high rev engine sutck in geer angine stals in stop and go tslow moving trafic
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536537August 4, 2023
ENGINE, FUEL/PROPULSION SYSTEM
Car consumes TOO much oil. Even after I get an oil change I have to add more oil weeks later and the oil is always black. Several times the sensor has gone out on me on the hwy and I’m not able to accelerate or go over 35 miles which is extremely dangerous .
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536052August 2, 2023
UNKNOWN OR OTHER, ENGINE
This vehicle consumes one quart of oil every 1000 miles. I have documentation to prove it. Hyundai has done their own asessments and claimed that it consumes less. There was a class action lawsuit filed in California for this issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11534399July 25, 2023
ENGINE
My engine was burning oil, I was/ am up to date with my oil changes. The oil suddenly kept being dirty. My car broke down twice. One time oil was shooting out of the top of my engine and it was smoking. Hyundai claimed it was neglect and only accepted my paper copy of oil changes but not the ones on my debit card statement.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11534179July 24, 2023
TIRES:TREAD/BELT
the Kumho 205/65 R16 treads are losing chucks of rubber on 3 tires with just under 17000 miles as of this date 7/24/23 and under 6 years old. ( their warranty states 60K or 6 yrs) Kumho will not warrant the tires in any way shape or form. Have tried to get some help from them since Jan of this year (2023) with no results. Also the service dept at the dealership tried to get me help but was not successful. Even after taking many pictures and information and sending them to Kumho. No help.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11531271July 10, 2023
ENGINE
I first reported issues with my vehicle to a local Hyundai dealer January 16, 2023. I was advised I couldn’t get an appointment until March 8, 2023. Since March 8, 2023 I have taken my car to the dealer my numerous times for a series of testing over the course of 3 months. I was advised my car was burning too much oil of oil per 1000 miles. I was also advised that the transvalve and engine needed to be inspected by an adjuster to determine a faulty engine in order to get approval from the manufacturer. My car was at the dealer for almost a week. On June 15, 2023 the Hyundai dealership advised the engine was faulty. I was also advised warranty approved for a new engine due to faulty engine/oil consumption. I was advised to pick up my vehicle from the dealership. On June 16, 2023 I picked up my vehicle. I was told by the dealership to keep driving my vehicle until the new engine came in due. I was denied a loaner/rental at the time even though they knew the car had a faulty engine. Immediately after leaving the dealership dealership my car started smoking. I pulled over immediately got out. The car caught on fire and burst into flames. This was a very dangerous safety risk. It caused panic attacks, anxiety, headaches, and lots of sleepless nights. If I hadn’t gotten out sooner I could’ve been severely injured or dead. The car is with the insurance company. A field investigation has been done by the insurance. They determined faulty engine and total loss if the vehicle. It is still available for inspection if needed. There were no warning lamps or messages before the car started smoking or caught fire.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11530300July 4, 2023
ELECTRICAL SYSTEM, ENGINE, VEHICLE SPEED CONTROL
My 2018 sonata has been stalling out while I’m driving more so when I accelerate.I have a baby that I’m scared to drive with in the car because it does it randomly. It has been happening more & more everyday. I got new parts/starter etc. No codes on dash. Have an appointment next week with Hyundai to take a look.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11527310June 16, 2023
ENGINE
Oil consumption problem 2018 Hyundai Sonata
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11525802June 7, 2023
ENGINE
After only 38,000 miles, the engine seized up and failed to start. Has been a the dealership where I purchased it for 2 months and has yet to be looked at
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11524423May 30, 2023
ENGINE, UNKNOWN OR OTHER
When driving the car on the highway - "check engine - hybrid system" warning lights come on and indicate hybrid system issue and to shut car off immediately. Extreme safety issue as the car goes from highway speeds to 35MPH almost instantly. This has happened seven times now and Hyundai keeps indicating that technicians are following engineering guidance in fixing the issue related to the knock sensor. The seventh occurrence happened on May 23rd of 2023. First one was in December 2021. As Hyundai is unable to correctly fix the issue I have repeatedly asked for them to replace the car since it is an extreme safety issue but they will not do so. Still waiting for diagnosis of the latest occurrence from May 23rd. Hyundai does not acknowledge that this issue is of safety concern and just indicates that the issue has been fixed each time it occurs.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11521976May 15, 2023
ENGINE, ENGINE AND ENGINE COOLING:ENGINE
The contact owns a 2018 Hyundai Sonata. The contact stated that while driving approximately 30 MPH, the vehicle lost motive power and stalled in traffic. The vehicle was misfiring, and the RPM was abnormally elevated. While driving 40 MPH, the vehicle stalled again. There were no warning lights illuminated. Additionally, the vehicle was consuming an excessive amount of engine oil. The contact was adding approximately two quarts of engine oil every two weeks. The vehicle was taken to the local dealer but was not diagnosed. The vehicle was taken to another local dealer, Twin City Hyundai (3024 Alcoa Hwy, Alcoa, TN 37701, (866) 229-3953) but was not diagnosed or repaired. The manufacturer was not yet contacted. The failure mileage was approximately 33,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11519361April 27, 2023
ENGINE
In January, At 65k miles I took my car in for an oil change. I informed them I was putting a quart of oil every month for the last 3 months just to keep the oil light off on my dash. Tech told me all Hyundais are burning oil and to just drive it until the engine blows and I’ll get a free engine replacement through Hyundai. The following month in February, I went to get my back brakes done. Mechanic told me I had no oil left in my car. They filled it up for me. In March, I took my car back to the dealership service center and demanded service. I was told I needed to do a combustion cleaning which would cost $700 and my extended warranty would not cover it because it’s considered general maintenance. I threw a fit and they agreed to do an oil consumption test. A few days ago I hit the 1k miles I was supposed to drive and took my car in for the first check. It was almost 2 quarts low and they said the next step in Hyundais flow chart is the combustion cleaning. They told me 1. It doesn’t actually clean anything and 2. Hyundai says this is the fix to the issue but it doesn’t actually fix anything. They said after, we would do another oil consumption test and then we could submit to Hyundai under “good faith” and ask for an engine replacement. I started researching and see this is a major issue with Hyundais and leave people with a blown engine and Hyundai refuses to cover anything. I traded it in today and got a new car, not a Hyundai!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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