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.

- Tyler, TX, USA

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.

- Philadelphia , PA, USA

I have a 2016 Hybrid Sonata [XXX], the dash started flashing and said...... HEV trouble! STOP the engine now! Now I have a orange engine light. I brought the car to the dealer. They will look at it and contact me. This car cost me plenty, last year they made me pay for a new engine, it would eat up a quart of oil every two weeks. That is 2 quarts a month. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

- Katy, TX, USA

Engine caught on fire while driving

- Bluffton, SC, USA

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.

- Miami, FL, 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

IF I drive long distances for 30 minutes or more and then stop in somewhere and shut the vehicle off. Once I try and start it, it will give the Yellow CIL Check engine light and the HEV error, bring car to dealer. You have to wait approx 15-25 minutes and then it will start up again. I also seem to notice that it happens even faster when I put the transmission speed control into High Performance. The battery seems to overcharge and go well past the halfway mark almost to 80% and then once I power off and back on vehicle, I get the HEV error message and must wait 15-25 minutes before it will start.

- Phoenix, AZ, USA

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.

- Redlands, CA, USA

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

- Lawerenceville , GA, USA

The contact owns a 2016 Hyundai Sonata. The contact received notification of NHTSA Campaign Number: 21V749000 (Exterior Lighting, Electrical System). The contact stated months later, the driver-??s and passenger-??s headlight fault warning lights were illuminated. The contact called local dealers; Freeman Hyundai (1800 Airport Fwy, Irving, TX 75062: (972) 438-2121), AutoNation Hyundai North Richland Hills (7724 NE Loop 820, North Richland Hills, TX 76180: (817) 953-6549) and Van Hyundai (1301 S Interstate 35E, Carrollton, TX 75006: (972) 437-8334) and was informed that the earliest available appointment would be in 8 weeks. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The failure mileage was approximately 105,000. Parts distribution disconnect.

- Hurst, TX, USA

I recently totalled my car due to "following to closely" which I didn't have GAP insurance. Truth is I signaled to go right lane when The car in front thought inwas going left due to faulty recall problem and we both went right, I lost control and hit a rail and damaged car unfortunately

- Ruther Glen, VA, USA

Car unexpectedly stopped working and became disabled while trveling 40 - 50 mph on the freeway. Complete loss of power. Danger of a collision on the freeway. All dash lights and warning lights came on. Car would not shift and would not accelerate. It was unsafe to drive and could hardly move off the road. The first year I had the car the engine light came on and loss of power. I took it to the dealership immediately. Whenever I took the car to the dealer they said there were no codes and the car was was fine. The entire time I owned the car I would lose power on inclined roads and engine light would come on and off. Last week November 18 the car stalled and could not drive uphill again risk of a collision from the rear. I took the car to the dealer they said the car was fine. The dealership has never tried to fix the problem and claimed they could not duplicate the problem. Today 12/1/2021 the car stopped operating on the freeway completely and I had to tow it to the dealership. This car has been a safety hazard within the first year and Hyundai has done anything to address the problem.

- Phelan, CA, USA

Radio doesn-??t shut off when the car is turned off. Radio will freeze and won-??t work ( won-??t turn on or volume and other dials doesn-??t work ).

- Coalinga, CA, USA

The contact owns a 2016 Hyundai Sonata. The contact stated while stopped at a red light waiting for the light to turn green, the turn signal was activated to make a right turn however, the turn signal was switched in the opposite direction. The contact stated the failure recurred intermittingly. The contact received notification of NHTSA Campaign Number: 21V749000 (Exterior Lighting, Electrical System) and related the recall to the failure. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was unknown.

- Norristown, PA, USA

The contact owns a 2016 Hyundai Sonata. The contact stated that while driving at an undisclosed speed with the exterior lights in auto mode, the exterior lights inadvertently turned off when the right turn signal switch was engaged. There were no warning lights illuminated. The contact stated that the failure had been reoccurring whenever the exterior light switch was in auto mode and the right turn signal was engaged while driving. The contact received a recall notification for NHTSA Campaign Number: 21V749000 (Exterior Lighting, Electrical System). The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The approximate failure mileage was 90,000.

- Indianapolis, IN, USA

When I was at work the engine gave up with no warning and could have gotten very dangerous for me. when I called the dealership they said because my car was totaled, but when I called NHTSA they told me that they didn-??t have the remedies. I just thought that was strange. I need my car to work so if I can get a response as fast as possible that would be great.

- Olney , MD, USA

When headlights switch is in the auto position and you use the right turn signal the headlights go off then come back on. I've had this car for 4 years and noticed this a lot. Left signal is starting to do the same. Very dangerous especially when I do a lot of traveling on interstates. I think this needs to be addressed immediately

- Indianapolis , IN, USA

The parking mechanism in the transmission failed. The car was parked in my garage. The lever was in the "Park" position when the car drove backwards out of my garage and crashed into the fence. It continued driving into the street and into the neighbors yard. Two people were out walking and saw it happen. I know I did not leave my car in neutral or reverse when I parked it in my garage. When I tested this later sitting in my car, in my garage, the car immediately began moving backwards instantly, while i was still at the wheel. Had the car been in neutral or reverse at the time this incident occurred, I would have known it was moving immediately and shifted it into park right away. When this incident happened I put the car into park, and I got out of my car, I got things from my trunk and went inside the house. Then I went back to the car to get more things. This is when I witnessed it driving out of my garage backwards. I was standing on my back step. Then I ran across the street to my car and got in the drivers seat to attempt driving it back to my garage. I had to yank it out of park and then shove it back into park to get it to start correctly. Then I was able to get it running again and drove it back across the street to my house. thank God no one including myself got hurt. The possibility of this happening shook me up for days. I reported this to Hyundai and waited 3 months for them to make a determination, they said they cant prove it, that it is my word against theirs. I looked online, and saw reports of this happening to other vehicles as late as 2017 even tho the recall for this was 2011-2014. I started using the electronic parking brake because i read online that other people who have had this happen said to do it. I need to buy a new car dont feel safe in this one.

- Springfield, MO, USA

The contact owns a 2016 Hyundai Sonata. The contact stated that his passenger side headlight housing had melted and become defective. While driving at 55 MPH, the contact stated that the windshield wipers failed to operate without warning during a rainstorm. Additionally, he stated that the turn signals would operate in the opposite directions of his intention. The dealer was notified of the failure and informed him that the vehicle was placed under NHTSA Campaign Number: 21V749000 (EXTERIOR LIGHTING, ELECTRICAL SYSTEM); however, the remedy was not yet available. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was 111,000. Vin tool confirms parts not available.

- East Alton, IL, USA

Fuel Pump Control Module replaced before 50,000 mi. - 58,539 mi. got my 2016 Hyundai Sonata Sport for ECM Update. Told dealership I heard ticking/clicking noise coming from engine; said oil was low and suggested oil change & low key battery was causing issues. Oil consumption was more and more 1qt every 2,000 mi, then 1qt every 1,000 mi. 1/29/21 at 90,340 mi, on the turnpike (70 MPH), car check engine light came on, car started vibrating VERY bad, pulled over & LIMP mode had activated. Hyundai dealership was 5 miles away, - found cylinder 2 had a misfire(s) - one of 2 exhaust valves burned a hole through; valve seat - damaged. Cylinder head and exhaust valves, spark plugs were replaced, & oil change. Engine light came on a couple days later car did not go to LIMP MODE. 2/12/21 at 93,466 mi, took the car to Hyundai for service again, Exhaust CAM Phaser failing, Replaced CVVT & Timing Chain Tensioner & RTV silicone. 4/21/21-103,821 mi. went for an oil change & oil consumption test, went back after less than 1,000 mi, Hyundai dealership stated that the car was.73 qts low and normal, I checked before the service, oil was closer to the "E" than "F". Dealership unreliable; did not complete test. Adding oil about 2 qts every 1,000 mi. Car was also idling weird NO warning lights. 7/22/21, catastrophic break down while driving on the Turnpike (70 MPH), car died, after all lights and gauges shot up. NO warning lights before issue. Lost power steering, coasted at 70 mph to 0 mph (in 30 seconds), barley to side of the road, late night needed a tow. Battery & Alternator fried because of this - replaced next day. Car starts now; wont get past 2,000 RPM & stalls out after 5 mins of running in "P"- NO warning lights, Engine rocks before shut off. NO warning lights on after restarting. Called HYUNDAI Corp. case sent to supervisor, no help getting the car to dealership, no rental, told not to expect a call before 8/3/21. All oil services completed at or before suggested intervals.

- Austintown, OH, USA