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.

- Montgomery, AL, USA

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.

- Converse, TX, USA

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.

- Bedford, TX, USA

Recently Service Campaign 966 (NHTSA ID Number: 10210205 Manufacturer Communication Number: 22-01-028H) was applied to my vehicle for improved knock sensor detection system (KSDS) logic. Six days following the software update, my vehicle stalled when DTC P1326 came active during my wife's commute home. We had the vehicle towed to the dealership where a knock sensor was identified to be replaced. 10 days after getting the vehicle back, knocking was heard from the engine compartment and DTC 1326 came active again, causing the vehicle to immediately stall. It did not go into engine protection mode as service campaign 966 indicated it would. My concern is that Hyundai changed the sensitivity of knock detection to prevent warranty claims on engines that may be affected by increased bearing wear; and in preventing replacing engines, they have caused engines (mine included) to stall. This engine stalling is a safety issue and they have left customers with no option to use their vehicle safely if the engine passes their bearing clearance test, which is required for an engine replacement under warranty.

- Stoughton, WI, USA

Recall [XXX] : Engine Inspection / Replacement ([XXX]) In the month of Oct 21, my Hyundai sonata hybrid, had severe engine issues and stalled. Upon inspection by dealer, it was determined, it needs engine replacement as there was a recall for these engines. After 3 months of waiting, in January 2022, I received my car back supposedly with the new engine. today [XXX] my car has stalled again with a similar engine issues and I have towed my car to the same dealer (DORAL HYUNDAI : Miami Florida) for inspection. fortunately i was not injured or ended up in an accident. the car just stalled suddenly with red lights on for every parameter along with engine light. luckily i was on the onramp and not in between the freeway. still was a dangerous situation as cars barely managed to save from hitting me when the car suddenly slowed down and stopped I feel, Hyundai didn't perform their replacement part effectively or efficiently. Probably replaced the car with a similar faulty engine. I request you to please investigate this matter my name is [XXX] and my email id is [XXX] and [XXX]. my cell phone number is [XXX]. thanks, [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

- Doral, FL, USA

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 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.

- Puyallup, WA, USA

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.

- Tallahassee, FL, USA

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.

- Chalmette, LA, USA

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 Michelle to enter my car into the system. My car was at their dealership for a week without paperwork. Eric Duke states that since I did not purchase my car at their dealership, the wait time will be longer. I waited 2 weeks and went back to Parks of Hyundai to check on my car yesterday 4/27/2022. Nothing has been done, they said it will be a few more weeks for diagonistic.

- Gainesville, FL, USA

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.

- Rolling Meadows , IL, USA

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.

- Marietta, GA, USA

The NHTSA has numerous complaints from owners of the 2016 Hyundai Sonata and 2016 Hyundai Sonata Hybrid with failures associated with the following: abnormal (knocking) noise from engine, reduced motive power and/or hesitation, illumination of the -??Check Engine-?? warning lamp, illumination of engine oil pressure warning lamp, and a burning smell, oil leaking, and smoke. After research, I found the recall 21V301000, which lists -??Part 573 Safety Recall Report 21V-301-??, and I have attached it. I believe the piston oil rings are potentially a source of engine failure for the 2016 Hyundai Sonata and 2016 Hyundai Sonata Hybrid (since they are from the same manufacturer) and not the process and defect that Hyundai previously listed (that they stated was corrected), yet referenced in their recall. Hyundai and Kia both have defects with their ignition coils that have the shared part number: 27300-2E601, which also appears as: 27300 2E601. We have a 2016 Hyundai Sonata Hybrid Limited that is on its 3rd set of ignition coils, and some Hyundai Elantra and Kia Forte owners have reported the use of a 4th set of ignition coils. I have researched this part number by contacting multiple Hyundai Certified Parts Departments. A Hyundai Parts Department verified that the Hyundai Technical Service Bulletin (TSB) 16-01-003-1 states that it -??replaces-?? part number 27300-2E601 with part number 27300-2E601QQH, but they are the same exact part down to the 27300-2E601 appearing on both parts. One of the Hyundai parts people that I spoke to said that Hyundai put white circle stickers on the top of the ignition coils to differentiate between the older and newer part numbers, but the parts are identical. He said that Hyundai contacted their supplier of the ignition coils and negotiated a lower price due to a high failure rate. This means a significant price difference per ignition coil for the dealers, but keeps a defective part in the concerned vehicles.

- Valley View, TX, USA

In January of 2022, my vehicle experienced a complete power loss while driving to work, leaving the car coasting down the road. A Check Hybrid System warning came up on the dashboard, along with several other warning lights, including Check Engine. Luckily, I was able to pull over without an accident occurring. Once stopped, the vehicle did restart and got me to and back from work. A diagnosis effort made at a local Hyundai dealership was unsuccessful as they could not replicate the problem and found no error codes in the auto's CPU system. I continued to drive the vehicle, hoping it was a one time deal, but since then, the identical situation has occurred three more times. I was extremely lucky that I had been in a position to safely pull off to the side of the road. The car has not been driven since March 19, 2022. After researching this scenario online, it appears to be the exact situation reflected in the Hyundai Recall campaign 175 from 2018, where the dealership remove the original VPD module and replace it with a Battery Management System (BMS) that contains an Overvoltage Protection Device (OPD). The recall is said to have been done on my vehicle, but the exact situation has reoccurred. Every time time the car lost power, it was preceded by a shuttering feel in the car, an alarm would go off and the propulsion system would just shut down and the Check Hybrid light would come on. Hyundai's only response has been to drive the car until it fails again (can you believe that?) and bring it in again for diagnosis. Even if that were to be done, the technicians and others on the road, would then be put at risk, as well, if they drove the vehicle in an attempt to get it to fail. I am the second owner of this car and the recall was supposedly done prior to my purchase. I now wonder if the dealer knew of the problem and that is why it was $2K below KBB. I cannot safely drive the car and can't sell it without loss once this safety issue is revealed. Thank you.

- Westminster, CO, USA

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

- Mariposa , CA, USA

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.

- Wesley Chapel, FM, USA

On 04/09/2022 around 6:30 PM EDT, while driving on the Florida Turnpike at the posted 70 mph in Orlando FL, the 2015 Sonata Hybrid suddenly shut down in the center of 4-lanes with heavy traffic. The engine would not run and only sputtered and jerked when I gave it any gas. The display screen lit up with multiple failure symbols including the Hybrid System failure, lane detection failure, and several others. I exited the Turnpike and had a local auto store scan the vehicle finding the following DTC-??s: 1. P1326: Excessive connecting rod bearing wear 2. U0293: Lost Communication with Hybrid Powertrain Control Module 3. U1004: Not certain The vehicle was checked and found to be full of oil. The vehicle was serviced at the Hyundai Dealer on 02/25/2022 where they specifically updated the -??Excessive connecting rod bearing wear-?? knock sensor software along with a turn signal issue. Having the engine go into a default mode at 70 mph in heavy traffic was a near disaster. A simple warning would have been adequate to all me to safely navigate to the roadside.

- Winter Garden, FL, USA

When entering freeway and needing to get up to speed real quick, the car will accelerate to approximately 50mph and then engine totally cuts out like the gas stopped flowing to it. I then have to let off on the gas considerably or it will not accelerate until I let off on the gas about 1/2 way. I then must "Slowly" accelerate so that it won't cut the engine again. This will happen anywhere if I take off from 0 mph and try to accelerate with peddle eventually going to floor, the car will cut the engine and will feel like its dying until I let off on the gas peddle all the way and then slowly accelerate the vehicle up to speed.

- Phoenix, AZ, USA

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 me $640.50+tax to take the engine light disappear for few days. If they have to fix it permanently, it is going to cost me -??Thousands of Dollars-?? into parts and labor charges. Private mechanic said Hyundai Engines are "Can of Worms" and wont even touch it. As per Hyundai case managers instructions, I ended up spending $435.50 out of pocket without any work done on my vehicle. As per their Brochure, they are making defected engines from 2011. Thousands of people driving those dangerous vehicles.

- The Woodlands, TX, USA

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.

- Annapolis , MD, USA

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.

- Atlanta, GA, USA