2016 Hyundai Sonata complaints

The 2016 hyundai sonata keeps losing oil within about 500-800 miles after changing the oil the dipstick shows that the oil needs filled. I have never had to refill the oil so quick after changing on any car I have had. I ended up adding an additive to seal whatever leak or malfunction that the sonata has. I have looked it up and my car does not seam to be the only one with this issue. I never know when its gonna be too low and hurt my engine.

The vehicle is highly susceptible to theft. There are multiple articles and videos on how my vehicle and many others made Hyundai and Kia can be stolen in minutes with just a USB drive. This needs to be investigated and fixed immediately.

I tried numerous times last year to get my car into the Beaverton Hyundai dealership to address the engine recall each time the service date they would call and cancel due to lack of proper equipment to diagnose. July 19th the vehicle was at the Nampa Hyundai dealership service department for the open recalls. I informed the service department of the loss of power I was experiencing and that no warning lights had come on. Upon completion they stated the engine passed and the smartbox was replaced and car passed the 32 point inspection. On July 22nd the car suffered complete engine failure and had to be towed to the dealership on July 23rd the car was then transferred to the Boise dealership on the 28th on the 29th I was informed they couldn’t diagnose in Nampa that’s why Boise was going to try. On Monday August 1st the service department notified me that there was not enough amps in the battery to diagnose and wants me to pay $275.00 plus tax for a new battery to diagnose. I have been stranded over 400 miles from my home for one because of engine failure they never offered a loaner they have had the car for over a week with no answers! The car suffered complete engine failure on July 22nd so why are they asking me to pay for a new battery on August 1st to diagnose? I truly feel they are avoiding replacing the engine and trying to charge me for something I never had an issue with until the engine failure. I am out a lot of time and money over this issue and I’m disabled this h

The knock sensor detection system is messing up

The contact owns a 2016 Hyundai Sonata. The contact stated that the vehicle was previously included in NHTSA Campaign Number: 16V726000 (Visibility) and the vehicle was repaired. The contact stated that while driving approximately 50 MPH, the moon roof detached from the vehicle. The contact took the vehicle to the dealer who diagnosed the vehicle and stated that the moon roof needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and filed a case. The failure mileage was 80,142.

ABS light has been on since the car had under 40k miles on it...I took it in and they won't repair without cost to myself although my car was under warranty. I had it looked at again at 79k miles and they still won't do anything about it. This also affects (according to them) how the transmission shifts which is a really hard shift when accelerating. I have had animals (deer and dogs) jump in front of me while driving and my brakes lock up and cause me to swerve out of control.

On Thursday June 30th my 2016 Hyundai Sonata started jerking and stopped on me. The check engine light or any of the warning lights did not come on to warn me of any issues on any of the previous days. Since i was at Wal Mart I was able to get it pushed into the service center. The service techs there said that there was no oil in the car and only sludge came out. They changed the oil and I was able to get the car home. The car shook violently as I drove it but I was still able to get it home. Once I was home I lifted the hood to check the engine and noticed the engine covered in oil.I immediately called the dealership and they asked me to call Hyundai Consumer Affairs as oil consumption was a known issue with the Hyundai Sonata. The consumer affairs agent gave me a case number. I had the car towed to Vandegriff Hyundai in Arlington, TX on that same day and waited for a phone call. On 7/18/2022 I was contacted by Hyundai Consumer Affairs and told that the car has two issues. The first issue was that the car was misfiring and the second issue is that the car was burning oil. They told me that I would have to pay out of pocket for new spark plugs and a new coil and that the issue with the car misfiring would be fixed after that. They also told me that I would still have the issue with the car consuming oil and that I would have to pay out of pocket to get the carburetor flushed and cleaned. They also stated that it was not a guarantee that whole motor would be an issue after th

July 16 2022 I was driving with my family (wife and kid) about 65 MPH on 91 Fwy around 9:00 A.M. lane #2 - my 2016 Hyundai Sonata started to shake and ultimately engine shut down middle freeway - many cars driving behind me was trying to dodge my car to my left and to my right - avoiding hitting my stall car -it was scaring things ever happen to me and family. Subsequently doing researching about my vehicle - I found out the car had problems with the engine and many recall items related engine problems. I never received any information (email, letters & text) about any recalls or issue regarding my 2016 Hyundai Sonata since I bought the vehicle used from the Hyundai dealership in 1307 Kettering Dr. Ontario CA 91761. My vehicle now is in another Hyundai dealership sevice shop being evaluated for engine problems. Getting alot run around from this Hyundai dealership (9898 Trask Ave. Garden Grove CA). Waiting around for two hours No one seem to care or wants to take any responsibility. Service reps already asking me money to do vehicle inspection ($500) and service for new engine. Everything is about financial gain. If I knew what Hyundai Corporation is doing - I should never buy a Hyundai Hyundai is risking my life for financial gain. I email Hyundai Corporation about my car and concerns. Currently waiting for response.

The contact owns a 2016 Hyundai Sonata. The contact stated while driving 55 MPH, he became aware of smoke coming from underneath the hood of the vehicle. The contact veered to the side of the road and exited the vehicle. The TPMS, oil pressure, power train, and battery warning lights along with an unknown warning light were illuminated. The contact veered to the side of the road. Upon opening the hood to inspect the vehicle, the contact noticed that oil was leaking onto the ground. The vehicle was towed to the local dealer where it was diagnosed that the engine needed to be replaced, the transmission needed to be flushed, and the drivebelt needed to be replaced. The dealer also diagnosed that the failure was associated NHTSA Campaign Number: 21V749000 (Exterior Lighting, Electrical System). The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was approximately 138,100.

The contact owns a 2016 Hyundai Sonata. The contact stated that while his son was driving at an undisclosed speed, the vehicle lost motive power. The vehicle was towed to the dealer where it was diagnosed with engine failure. The dealer informed the contact that the manufacturer had declined the engine replacement due to a lack of maintenance records. The vehicle was not repaired. The manufacturer was made aware of the failure and declined the contact's request for a free engine replacement. The failure mileage was 102,388.

While driving at night, the low beams on the vehicle cast a very dark shadow approximately 30-40 feet in front of the car. While traveling, it us very noticeable and downright dangerous. If someone or something is in front of the vehicle, it would be hit. We have seen numerous complaints about this on the internet while searching for dilutions to the problem. Dealer says its within Hyundai specifications, however they have seen the problem and agree its very dangerous. Car was just purchased used, however we did not test drive it at night. It is so noticeable and dangerous that we try not to drive the vehicle at night.

2016 HYUNDAI SONATA. CONSUMER WRITES IN REGARD TO SAFETY RECALL RELATED TO 2.4 LITER ENGINES. THE CONSUMER STATED THE DEALER AND MANUFACTURER WOULD NOT HONOR THE RECALL DUE TO A SOFTWARE UPDATE PREVENTING A SUCCESSFUL REPAIR. THE CONSUMER STATED AFTER THE SOFTWARE UPDATE THE ENGINE WOULD STILL FAIL.

Ive bought this car used at 30k miles currently at 79k in 2020. Ever since this car has been given me nothing but issues. On 6-24-22 for the third time in two years the car would lose all power going 60-70 mph no gas, no battery engine wouldnt work all while driving on busy I-95. I refuse to drive this car any longer as it is not safe for myself and other drivers around me. This car has got to get taken off the road and or recalled as there have been many reports of this same car with the same issues doing this to other drivers.

My daughter’s car just shut off Tried to start the car several times and heard loud knocking noise with oil light flashing. Towed the car to local repair shop and was advised we needed a new engine. We’ve had the car for a year! This is my 2nd purchase of a Hyundai car for my daughter and I’ve realized THEY ARE A PIECE OF CRAP! With the 1st car, we had light replacement issues constantly as well as ac issues. Now we have engine issues. I wanted a safe economical car for my daughter and I’m ending up paying more money on this crap. I’m praying it’s covered under a recall.

I went to my mechanic today to see why my car was making rattling noises coming from the steering wheel. It's been happening randomly for about a year now or more now. The mechanic said he's seen this over a thousand times with Hyundai, and I need to bring it into Hyundai to fix because something is wrong with the "Steering Rack Support Yoke", which is making the noise. If this is happening to so many Hyundai's this should be fixed for free and recalled! He googled it and gave me a whole printout from Hyundai. It says 2011 to 2018 model year Sonata 2011 to 2018 model year Sonata Hybrid 2012 to 2017 model year Azera 2013 to 2018 model year Santa Fe. This is what my mechanic gave me and said all these cars are affected. So why isn't this recalled, it is dangerous because eventually you could loose control of the steering wheel I think and it's going to cost a lot to fix. Thanks

Engine caught on fire while driving

The contact owns a 2016 Hyundai Sonata. The contact stated that she initially received notification of NHTSA Campaign Number: 21V749000 (Exterior Lighting, Electrical System) however, after the recall repair was performed, the contact stated that the vehicle would shut off while driving at various speeds. The contact stated that several unknown warning lights would illuminate on the instrument panel during the failure. The manufacturer was notified of the failure and the contact was provided a case number and was then referred back to the dealer for assistance. The dealer performed a diagnostic test and informed her husband that an unknown defective sensor was the cause of the failure. The contact was provided an estimate for the repair. The vehicle had not been repaired. The failure mileage was approximately 89,443.

The engine is consuming oil at abnormal rate. After receiving an oil change at a credible business the car is out of oil in a week. Hyundai will not check for oil consumption if the mileage is above 85k miles. Myself and my children can be stuck on the side of the road for engine failure due to the lack of oil. Express oil has stated this is not normal and a cause for concern. There are no warning signs for this problem. Only awareness from the performance of the cars decline to run properly.

When driving at 65+ mph the "Turn off Engine - Check Hybrid System" flashing triangle warning lamp came on, causing me to pull over on a freeway putting myself in danger of collision. After turning off vehicle with no explanation of warning symbol in owners manual I turned vehicle on again after 5 minutes and warning lamp re-illuminated. After waiting 30mins while still on shoulder of major freeway, I reignited engine and warning lamp had disappeared so I drove vehicle home (less than 5miles) and took to Hyundai service dealer the next day and they determined the coolant (water) pump and thermometer needed to be replaced and it was a known issue covered under 100k warranty. My vehicle was at approximately 102,700 miles and I paid for replacement of coolant pump and thermometer out of pocket.

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.

While turning onto the freeway the steering locked up and would not budge. Power steering light and traction control light came on. Turned car off and back on and it Went away for a few days. Almost crashed into the side railing and other cars on freeway. Dealership said it was the battery and replaced it. A few weeks later the same thing happened pulling out of the garage. Steering locked up and lights came on. Dealership said they could not duplicate the issue. It is locked right now but would need to be towed to a shop.

The contact owns a 2016 Hyundai Sonata. The contact stated while driving approximately 45 MPH and accelerating to merge onto a highway, the vehicle stalled. The power steering and braking functionality remained operational. The contact was able to safely coast off to the side of the road. The contact attempted to restart the vehicle however, the vehicle failed to restart. The contact stated no warning light was illuminated. The contact had the vehicle towed to her residence and called an independent mechanic. The mechanic diagnosed the vehicle and determined that the engine had seized and needed to be replaced. The vehicle had not been repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 100,000.

The contact owns a 2016 Hyundai Sonata. The contact stated upon starting the vehicle, the ABS, traction control, and TPMS warning lights were illuminated. The vehicle was taken to the dealer where she was informed that the diagnostic test indicated that the rear wheels were moving at over 200 KM/H while the vehicle was idle. The dealer also diagnosed that the ABS had failed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 50,000.

I purchased my car used in December 2021 it is a 2016 with 97k miles. 2 weeks after I purchased the car I called to set up service because my cars engine was making horrible sounds. with me putting less than 900 miles on the car (it took 2 weeks to get it in for service) I had a in near perfect condition car with a blown engine. The car still runs and drives fine but it is using almost a qt of oil a week. The dealer is Autonation Hyundai of North Richland Hills, Tx knows the history that these engines are junk. But rather than be stuck with this issue they told me my valve covers were leaking and that was my issue. Keep in mind I have no oil leaking from anywhere and not a drop is on my car or on the ground. This car has an oil consumption problem along with thousands of other Hyundais and neither Autonation or Hyundai are willing to do anything about it because I am the second owner even though I bought the car in this condition from the dealer. The engine is failing because it is consuming oil. The engine is making noises and could at any time while driving could lock up and cause a dangerous situation on the roadways. This is a very well known issue and even a current class action lawsuit. The dealer is refusing to inspect the vehicle because I am the second owner and have no warranty. The only sign is low oil. The car is using oil at a rapid pace and I have to check and add oil weekly. This is a 5 year old car with 100k mikes on it.

The recall for the moonroof wind deflector plate was done. However, with their remedy just being super glue it didn't hold up. Last year I had contacted Long Hyundai, dealership I bought the car from and the dealership I did the recall through and when I arrived they told me I was SOL. Hyundai America said the same thing. I've tried remedying this recall and my partner has witnessed the potential hazard given the plate detaching and the sunroof being left slightly ajar when closed. Three times this deflector plate has came detached and three times it almost caused an accident given the scare.

COMPLETE ENGINE FAILURE ENGINE FAILED IN 2021, PRIOR TO RECALL NOTICES (2 OF THEM) FINALLY HAD IT TOWED TO HUNDAI. HUNDAI WANTS ME TO BUY A NEW ENGINE BLOCK FOR $13,000.00 THIRTEEN THOUSAND DOLLARS. HUNDAI NEEDS TO BUY THAT CAR BACK, OR PAY TO PUT A NEW ENGINE BLOCK IN IT. HAD THE PARTS NOT BEEN FAULTY, I'D STILL HAVE A CAR TO DRIVE.

2016 HYUNDAI SONATA. CONSUMER WRITES IN REGARD TO ENGINE FAILURE. THE CONSUMER STATED WHILE ON VACATION THE ENGINE FAILED. THE CONSUMER STATED THE MANUFACTURER DENIED ANY ASSISTANCE. THE CONSUMER STATED THE VEHICLE WAS SOLD WITH AN UNRESOLVED RECALL. THE CONSUMER WAS UNAWARE OF THE RECALL.

The contact called on behalf of the driver. The contact owned a 2016 Hyundai Sonata. The contact stated while the driver was driving approximately 30 MPH the vehicle braking system functionality completely failed. Then shortly after there was smoke exhausted from the hood. There were no warning lights. The driver was able to cruise to the nearest parking, got the vehicle down to 5 MPH, and forced the brakes on. Upon exiting the vehicle the smoke became more intense and spread in the cab. The vehicle was destroyed by the fire. The fire department arrived and extinguished the fire. There was a police report filed. There were no major injuries; just minor smoke inhaled. The vehicle was towed to the wrecking yard. There were no medical reports. The manufacturer was not notified of the failure. The approximate failure mileage was 91,000.

Car oil light begin to blank and suddenly killed while driving at over 50mph. No warning. No engine or computer codes. Just sudden failure. The engine is locked I am being told.

The engine is still under the orgininal warranty (10 years, 100,000 miles). I took my car to Parks of Hyundai in Gainesville, FL on 09/23/2021 for an issue with engine code p1326. The service manager reset my engine code and told me that their service department is backed up with cars and they cannot help me with my car at this time. Then on April 5, 2022, the issue happened again to my Hyundai Sonata on the interstate, the car engine went into limbo mode in the middle of the interstate and almost caused a large accident. I have the engine code p1326 showing up on their computer I took my car back to Parks of Hyundai on April 5th, 2022. Parks of Hyundai told me that I had to leave my car with them and that they refuse to provide me with a rental. Karl Buchwald, stated that it will take a few days to get to my car, and they will let me know what is wrong with it plus diagonistic fee of $200 even though I provided him with the engine code number thats under the powertrain warranty on the car. I went home and called Corporate Hyundai and opened a case. Case no: 19623500 case manager Emily, number 1(833)462-8722. Corporate Hyundai says I have to pay out of pocket for my rental and then submit my paper work after for possible rental reimbursement. I went back to Parks of Hyundai to check on the status of my car on April 13, 2022, Karl Buchwald, states that it may take 2-3 weeks for them to take a look at my car. When I asked to see what was done on my car, he told service advisor

While driving on the highway in Michigan I noticed the engine RPM not functioning properly. The timing on the engine was off and the shifting was irregular. I pulled over to the side of the road with fear it was going to do more damage internally to the engine. If I had the cruise control on I was in fear of the engine malfunctioning and causing damage to other vehicles on the road. Upon further inspection I noticed the variable valve censor connector had an electrical shortage and burned a hole right through it. I was afraid of more electrical damage that could have turned into an engine fire. So I didn’t drive it anymore.

The contact owns a 2016 Hyundai Sonata. The contact stated while driving 70 MPH, the vehicle lost motive power and stalled without warning. The contact was able to pull over safely; upon inspection, the contact noticed that there was oil leaking from under the front of the vehicle. The vehicle was towed by AAA to an independent mechanic to be diagnosed. The contact was informed that there was a hole in the engine block and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 33,000.

We were on a road trip and the car was on cruise control. I stopped accelerating and lost power. We had it towed to the nearest aaa approved mechanic. They ran the codes and found P132600- knock signal range performance. The technician found heavy metal contamination in the oil. The motor needs to be completely replaced

I have had NO previous issues with my sunroof. On Thursday, March 31st at approximately 5:30 pm, as I drove home from work. There was a breezing sound immediately after which my sunroof was pulled from the vehicle. Projected about 30 feet in the air according to the witness and crashed in the middle of the road. Fortunately, there was no one hurt or injured. I was shocked and a bit shaken up. I pulled over got out of the car and recover the frame of the apparatus. The front deflector appeared unattached and I had to hold it down to keep from flapping to bring the car home. After some research as to how this major and possibly like-threatening incident could have occurred. I found numerous articles regarding the deflector unbonding and cause tracking issues with sunroof and disengagement. This is highly concerning and I believe Hyundai should be responsible for the repairs in full as this is a safety concern that is the result of defect.

STARTED OIL CONSUMPTION TESTING IN AUG 2021 THROUGH HYUNDAI DUE TO THE VEHICLE TAKING IN AT LEAST 1.5 QTS OF OIL EVERY 1,000 MILES. AFTER MULTIPLE TESTS, HYUNDAI COMPLETED A COMBUSTION CLEANING IN JAN 2022. NO CHANGES. AFTER AN ADDITIONAL OIL CONSUMPTION TEST IN MARCH 2022, HYUNDAI HAS ADVISED THIS IS NORMAL CONSUMPTION. NO ACTION TO BE TAKEN FROM DEALER/CORP UNTIL ENGINE BLOWS A ROD. MANUFACTURER &/OR DEALER PREFERS FOR MY FAMILY TO SUFFER A DANGEROUS AND POTENTIALLY CATASTROPHIC EVENT BEFORE ADDRESSING WHAT IS TO BE A KNOWN ISSUE WITH THIS YEAR/MAKE/MODEL.

The contact owns a 2016 Hyundai Sonata. The contact stated that while attempting to start the vehicle, the vehicle failed to start. There were no warning lights illuminated. The vehicle was not taken to be diagnosed or repaired. The manufacturer had not been notified of the failure. The approximate failure mileage was 54,000.

Engine went bad prematurely. After 6 years of routine maintenance and standard commuting the engine went bad at 130k miles. No warning or indications that anything was wrong.

Hyundai Motor America is doing fraud with its customer’s and putting their lives at danger. They made engines with manufacturing defect. They sent a brochure to their customers to get the software updated for knocking sensors and then placed a lifetime warranty for the issues caused by it including any repair costs. They said the software will detect the knocking noise and will turn on Warning lights (Engine Light) as well as place the vehicle into reduced power, engine protection mode. Their brochure said they have defective engines in 2011-2019 Sonatas, 2013-2018 Santa FE Sports, 2019 Senta Fes, and 2014,2015, 2018 and 2019 Tucsons.I own a 2016 Hyundai Sonata. I did software update and then I started having engine knocking at around 76,000 miles. Sometimes, car automatically loses power on highways/freeways and sometimes it starts to accelerate on its own at very high RPM’s. I contacted Hyundai dealership in Spring, TX (North Freeway Hyundai), which told me that Hyundai doesn’t cover it anymore until unless its complete engine failure. This is not what their Warranty document (Brochure) said. They are denying to take care of the issue which was caused by manufacturing defect and their software update. Their brochure said they will take care of it including any engine repair costs. Their dealership told me that this is just the “Beginning of the engine falling apart”, they can start with putting a new cover on the faulty engine part rather than replacing it, which will cost

My oil seems to be consumed really quickly! I get a full synthetic oil change and then my engine sounds strange and check the oil and there's no more oil in there! This is after less than 1,000 miles after the oil change! It's very expensive that every few months I need to go and get a new oil change, it's supposed to be every 6 months or after 5,000-7,500 miles with full synthetic but it only last about 700 miles before it starts to start to disappear! I'm scared it will cause my engine to get ruined and make a fire! This has been going on formore than 2 years now.

My blinker switch that has the light controls on it as well is not working properly! The lights would be set to Auto, and it started randomly switching while driving at night or day on and off, at night when it's dark it just would randomly shut off and sometimes I wouldn't realize until someone lets me know. It could be very dangerous as other people may not see me if my lights are shut off without me knowing it. It sometimes flickers on and off as well, when I use the blinker stick to turn lanes. So something is wrong with the stick as when it's touched that's when it would flicker.

Yesterday, my car’s engine/battery/oil lights came on. I pulled over, checked the oil and it was almost completely dry. I went to start the car again and it would not start. After my mechanic checked the starter and battery, they determined that the engine was locked up. My engine could have caught on fire as there was no warning prior.

Manufacturer paint is peeling off hood of car. Problem has been confirmed and photographed by Speck Hyundai. Vehicle and component was inspected by manufacturer.

The Car is flash on Dash boards Check HEV and turn off the engine cause my car to idle. Turn off my car for 20 mins signal gone Then 2 weeks later randomly does it again. Car also flash Check Breaks on dash boards and turn off the engine and it shut my whole car off

My 2016 Sonata se with 85,000 miles is using over 1 qt of all per 1,000 miles . I'm told that this is normal for this type of engine ??? is there any thing Hyundai will do to FIX this oil problem thanks C.W. Mehltretter

The contact owns a 2016 Hyundai Sonata. The contact stated upon accelerating from a complete stop at a traffic light, the vehicle stalled. The contact attempted to restart the vehicle, but the vehicle failed to restart and emitted an abnormal grinding sound. There was no warning light illuminated. The vehicle was towed to a local dealer, where it was diagnosed that the motor had failed and needed to be replaced. The contact was advised by the dealer that the failure was related to Hyundai Service Campaign Number: 953, regarding the Knock Sensor Detection System (KSDS). The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 93,000.

Took car to accredited service center for routine oil change early. Was given an opinion that the their was internal engine damage and that my engine would blow out if car was continued to be driven. I then had it towed to Hyundai dealership to be serviced and to get a second opinion. Service was done, and told it was a simple issue, after paying $400 after services were complete, I left feeling relieved it wasn’t a bigger issue. Not less than maybe 6 hours later, early sunday morning, I was driving at night on the road and my engine completely blew out on me. My safety was put at risk and others around me on the road as well because I could have caused an accident, if I had been on the high-way going a higher MPH, my engine would have more than likely caught on fire or possibly have caused an accident. Clearly the issue was not fixed and they sent me to drive in a car that was faulty and not fixed, endangering my life and possibly others around me. It has only been inspected by hyundai, but clearly inspection by them is inadequate. No engine light warnings ever appeared. Oil light would occasionally flash on and off but I didn’t think anything of it because, 1) no loud sounds/vibrations were happening, 2) my next oil change service wasn’t until almost over 1,000 miles, as I regularly keep up with maintenance on my vehicle. I would say the on and off oil light was flashing maybe for about a week or so, and this was NOT after prior oil change, this occurred miles and miles aft

The contact owns a 2016 Hyundai Sonata. The contact stated that while driving 55-65 MPH, the oil warning light illuminated. The vehicle was taken to an independent mechanic where it was diagnosed with an oil leak. The oil pressure sender was replaced. The contact stated that upon taking the vehicle to the dealer for an unknown recall repair, he notified the dealer of the oil leak failure; however, the dealer informed the contact that no issues were found. The contact stated that after servicing the vehicle at the dealer, the vehicle began to overheat while driving. The vehicle was taken to another independent mechanic who diagnosed that oil was leaking from around the valve cover gasket. The cause of the vehicle overheating was undetermined. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that they could not assist because the vehicle was out of warranty. The failure mileage was unknown.

Engine is consuming a quart of oil every 400 miles.

Unknown Vehicle made knocking noises and completely cut off on me . The vehicle had an oil change 1 month ago .

Car began to knock and lacked acceleration. I took it to a dealer and spent $300 on replacement of plugs and it seemed to be working fine. One month later on the highway, the car completely lost power and would no longer accelerate. I found online that the engine had been recalled and the warranty extended to 120K miles. Hyundai paid for a tow to the dealership. The dealership determined that the engine needed to be replaced and thought Hyundai would replace the engine due to the recall, but the replacement was denied by Hyundai. I do not not know at this point on what grounds, but the car has 117,000 miles on it and should be within the extended warranty period because of the recall. The estimate for replacement of the engine is $8000. I've only had the car a few months and expected to get at least a few years out of this vehicle.