My 2016 Hyundai Sonata started using and leaking oil in August 2023 when it had about 129,000 miles and when you tried to go faster than 55 miles per hr. it would not accelerate. We feel there is a danger to drive it in traffic. We took it to the dealership in Pensacola, FL. They found a valve cover gasket had multiple leaks which they replaced. Found a code P1326 (whatever that means), Performed T3G campaign and followed a flow chart and BCT test passed. Don't know that any of this addressed the fact that the motor won't accelerate. Charged me $3,000 for something. Car ran okay for a while and started doing the same thing again. In June of 2024, took it to local mechanic who ran diagnostics and replaced a coil and plugs which cost another $600. It ran a little better until August 2024 and took it back to local mechanic who did another diagnostic and replaced 4 plugs and PCV valve for another $300. It's now November 2024 and the car won't accelerate over 55 mph and we can't use it to drive to work.

- Mcdavid, FL, USA

Car is still driving good, but after I've had it for a little over a year now the first thing I noticed was my horn went out, then the headlights went out, then my temp gage is flashing and the engine light comes on & off. Certain dash lights come on & off. I just got an oil change. I've been taking my vehicles to Pep Boys for several years now. My last oil change on the Sanoto was the 3rd or 4th oil change. One of the reps told me that my car is now consuming oil. He said it's not leaking on the ground but something is causing the oil to burn. I don't know if you have a warranty on it but he suggested I take it to the dealership. Again I've only had it a little over a year. I'm financing the vehicle and have about 4 more years to go. HELP!

- Kalamazoo, MI, USA

My Hyundai is currently experiencing an issue with the engine. At just about 100k miles, the car is having an issue with oil consumption, there are no evident leaks and I am going through 1.5 quarts of oil in a weeks time (less than 300 miles driven).

- Seymour, CT, USA

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.

- Plain City, OH, USA

Engine in limp mode, CEL activated with code p1326. Knock sensor detection system activated, oil leaking. Car won't Rev past 1700 RPM.

- Clearwater, FL, USA

My car currently has 93000 miles. Since I-??ve had 76000 miles, I cannot make it to an oil change without my engine almost running out of oil. My maintenance is always done on time, especially considering I can-??t even drive 3000 miles (out of my 5000 mile synthetic oil change life) without my oil light coming on and oil below dipstick. I have taken the car in multiple times, performed multiple engine oil consumption tests and even though my engine is burning a whole quart of oil every 1000 miles, they refuse to replace my engine. I even have an extended warranty through Hyundai so I don-??t understand why a defective engine under warranty that literally can-??t even drive a whole oil change cycle without running out of oil wouldn-??t be replaced by the factory. Please help I-??m afraid to take long trips because what if the engine runs out of oil?

- St. Charles, MO, USA

We were told from Tulsa Hyundai that our car was involved in a massive recall due to engine failure and that the warranty had been extended to 150,000 miles on Theta engines. They told us we had to follow the process in order to have a claim submitted to Hyundai corporate. They required us to pay for a valve gasket replacement and a valve cover gasket ($1000), then to take the car home and drive for 1000 miles and then bring it back in. We brought it back in and were required to pay for a combustion cleaning (around $800) and then take it home and drive it for 1000 miles. We brought it back in and they performed the oil consumption test. They then submitted the claim to Hyundai and we heard back the next day (9/18/2024) that they were denying they claim due to it being an issue with piston rings instead of rod bearing failure. I called Hyundai and they basically said there was nothing else they would do. They told us we could be reimbursed for the $1800 we had to spend to go through that process. Those fees were incurred were not necessary, especially when Hyundai is not going to replace the engine. Hyundai markets on their dealer websites, "engines for life", yet they will do nothing to replace our engine that is in failure.

- Broken Arrow, OK, USA

My Sonata has had continuous oil consumption issues. It is now at the dealership for service. They want to do repairs that may not work, to avoid replacing an engine that is under an Oil Consumption Recall. My car had an oil consumption test. At the time the dealership said it passed, this was a couple years ago. It now has the oil issues. The recall extends my warranty to 15 years/150,000 miles. If I have the repairs and they fail, the engine could seize up while I am driving it.

- Evans, GA, USA

Thus is the second time my motor has blew up due to a recall in a year Hyundai refuses to replace my engine due to my driver door bring damaged. My vehicle is still being paid on and is fully covered. I was told to get it towed somewhere else and I'm about to lose my job due to nor having transportation

- Empire, AL, USA

This car looses oil continuously. I put a quart of oil in it every week. Due to this oil leaking into the engine I have had many costly repairs to replace spark plugs, coil packs, air sensor and throttle. In the winter the coolant needs replaced weekly and no idea where that is being used at. Now again the car must go back to dealership for repairs for rough idle and loosing power while driving.

- Bellevue, NE, USA

I'm making a complaint on my 2016 Hyundai Sonata-??s engine. The problem started in February 2023 with the valve cover gasket leaking, the mileage was around 98,000 miles. Then, 2 months later, the oil pan was leaking. The vehicle was still losing oil. They can not find where the oil went to. Took the car to the dealer to do an oil pressure. Before the oil pressure, oil levels were down 1 -?" quart low. Drove the vehicle for 1,000 miles and checked and the oil was down ? quart low, which was in range according to Hydundia. Checking the oil level every 1,000 miles and the oil level were about 1 quart oil low. Since last year, checking the oil level every 1,000 miles until this month the oil level was 3 quarts low at 1,000 miles. This engine should be recalled, which I had found out several different ones I came across are having the same problem.

- Petersburg, VA, USA

Vehicle suddenly shuts down while driving. This has happened several times and has cost lengthy repairs and towing fees but still keeps doing the same thing. After it shuts down once the car is reset it will work again for a little while and do the same thing over again.

- Alice, TX, USA

taking more engine oil and knocking engine noise

- Overland Park, KS, USA

The contact owns a 2016 Hyundai Sonata. The contact stated that while driving at approximately 65 MPH, the vehicle unexpectedly lost motive power. The check engine warning light illuminated. The contact was able to pull the vehicle to the side of the road. The vehicle was able to be restarted, and the contact noticed an abnormal sound coming from the engine compartment. The vehicle was taken to an independent mechanic who determined that the engine needed to be replaced. The contact was advised by the independent mechanic that the failure was common failure. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 111,000.

- Bellevue, ID, USA

The contact owns a 2016 Hyundai Sonata. The contact stated while driving at various speeds, the vehicle shuddered significantly. The contact stated that the vehicle stopped shuddering while shifted into neutral(N). Additionally, the contact stated that while driving and depressing the accelerator pedal, the failure recurred, and the vehicle jerked significantly. The low oil pressure warning light and the check engine warning light were illuminated. The vehicle was taken to an independent mechanic, where four ignition coils and four spark plugs were replaced; however, the failure recurred four months later. The vehicle was taken to the dealer, where the spark plugs were replaced and a fuel induction cleaning service was performed; however, the failure persisted. The contact stated while driving 5 MPH, the vehicle stalled. The vehicle was jumpstarted. The vehicle was taken to the dealer, where it was diagnosed that there was oil intrusion in the combustion chamber, and the spark plugs were fouled. The dealer determined that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 95,050.

- Clemson, SC, USA

The motor burns oil causing oil to turn black. I have to add oil weekly and get oil changed every month regardless of mileage. The mechanic that works on it said that dipstick is wrong color and doesn-??t look right in engine

- Smithfield, NC, USA

Hello, My name is [XXX], hopefully this peaks your interest. i have been thru and thru with hyundai about this oil consumption and to be honest i have had it with this terrible company. unwilling to take responsibility for faulty engine issues in millions of individuals with the hyundai brand. Seems to me like this brand is all for profit and not for the customers. I should not have to pay for a combustion cleaning, multiple oil consumption test that are destroying my engine further in HOPES that they will replace my engine out of -??goodwill-?? with no guarantee. This issue should definitely be added to the other recall vehicles that are listed for oil consumption problems, yet isn-??t. there-??s no reason my car should be burning through 5 quarts of oil in less than a week, this is obviously a manufacture issue and to be told the problem was a cracked oil pan that i paid $700 to fix at the dealership just to find out, that was not the issue, my car was not diagnosed correctly and i was charged for this oil pan replacement for absolutely no reason being that my vehicle is still CONSUMING oil, not leaking oil. i have checked for oil leaks myself, that is not the issue. my engine is consuming oil at a very rapid rate in the event i drive my car more than the 15 miles i drive to work and back, one errand run and 5 days of driving back and forth to work SHOULD NOT be using that much oil. my engine is getting hot from a 15 mile drive to work and i SHOULD NOT have to damage my engine further if hyundai can not even promise me a replacement in the event my engine burns up. No kind of loaner car available. This is just a terrible company all around and i-??m ready to just switch to a different vehicle brand as this company obviously does not take responsibility for the issues that millions of individuals are having at this very moment. i spoke to a case manager and she Tells me i will receive an engine replacement if my oil combustion cleaning fails, when i asked for that in INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMA

- Milton , FL, USA

The oil box does not look right, Also there is an orange handle dipstick to check the oil. The dipstick should be yellow

- Smithfield, NC, USA

1st Incident: The engine lost its acceleration power on the highway, giving a rattling noise. It was identified as misfire in cylinder 3. This was repaired and gaskets and timing chain replaced. 2nd Incident: The engine lost acceleration again on the highway with a loud rattling noise. On checking the OBD scanner it showed the Knock Sensor as the problem. On taking it into the dealership a KSDS software update was done. Current Situation: The car drinks up 2-3 qt of oil for every 1000 miles and has an intermittent rattling noise when accelerating Losing engine acceleration power on the middle of the highway is a very serious issue. And this keeps happening multiple times and Hyundai has refused to give me a proper explanation on this issue. Other mechanics have suggested to get a replacement from Hyundai as there is already a Lawsuit against these Faulty engines. On contacting Hyundai there has been no proper response. Please look into this as losing power on a busy highway poses danger not only to our car but to other oncoming vehicles as well. It has been a very harrowing experience for us and I am left with no option but to drive a faulty car which might lose power at anytime.

- Denton, TX, USA

While driving (speed doesn-??t matter, highway or city streets) the check hybrid system turn off engine message/code comes on. When u turn off the car and wait for a period of time the it-??s not there anymore but the check engine light stays on and the car drive normal until the code comes back up. When the message comes up the engine loses power and and the car just slows down until the car is turned off. This is a safety hazard when you-??re driving on a freeway and especially a freeway with no shoulder to pull over on or going through a read light with no speed. The car just does it periodically and when u take it to the dealership they say they can-??t duplicate the problem. When all u do is hook a computer up and look for a code when the problem arises while driving you-??re never going to find the issue. No the dealer hasn-??t reproduced the problem because they didn-??t drive the car just leaving it to sit up and checking codes doesn-??t bring the problem to light. They wasn-??t any warning signal or codes before this but not code p2600 and code p0401 are coming up. Spending $2000 for a part that will can-??t be ordered anywhere but from the dealership and the problem still exist is not being logical. So many online reviews have the same problem and not one person has found out the problem from changing the electric water pump to transmission to the engine the warning sign still come back after some time. Me not being the 1st owner and the car out of warranty due to mileage is just robbing folks blinds with no solution.

- Fort Worth , TX, USA