The contact owns a 2016 Hyundai Sonata. The contact stated that while driving at 30-40 MPH, the vehicle inadvertently stalled. The check engine warning light illuminated. The contact veered to the side of the road and turned off the vehicle. The contact was able to restart the vehicle however, the vehicle was making abnormal sounds and would not accelerate properly. The vehicle was taken to the independent mechanic for an oil change however, the failure persisted. The vehicle was taken to the dealer for the recall repair of NHTSA Campaign Number: 20V746000 (Engine). The dealer inspected the vehicle and advised the contact that the engine needed to be replaced. The dealer also advised the contact that they would not complete the recall repair free of charge because the vehicle was out of warranty. The manufacturer was notified of the failure and advised the contact to take the vehicle to another dealer. The vehicle was not repaired. The approximate failure mileage was 119,345.

- Brentwood, CA, USA

2016 Hyundai Sonata. Consumer writes in regards to engine failure. The consumer stated the vehicle was repaired under recall, but continued to experience issues. The vehicle would shut off while driving, the engine makes unusual sounds, the computer system rebooted itself, the shift lock release was inoperable, the sun roof opens independently, aire leaks through the frame of the door and glove box, and the vehicle locked while the key was still in the vehicle.

- Washington, DC, 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

eginning in June 2020, my check engine light on my 2016 Hyundai Sonata Hybrid started coming on. I took it into a dealer to get it fixed. The problem seemed to be fixed until the light came on again, took it to the dealer who replaced a different part, seemed be fixed, and so forth until the engine blew while I was driving to work(2/3/2021). It was towed to a dealer and the engine was found to be seized. Luckily Hyundai had just sent out a recall letter to me cautioning about a faulty engine. (There are now lawsuits against Hyundai for this same reason).Hyundai replaced the engine. Meanwhile I found their campaign reimbursement page (case #17706103) and submitted all my out of pocket cost since the first check engine light occurrence (6/10/20) through to the car rental cost which was when the car engine was replaced (6/21/2021). Sum total $2,644.55. Before Hyundai replaced the engine, they knew about the engine failure associated with my car. But they had no remedy so dealers were left with no other choice but to replace a part and reset the warning light hoping to satisfy me until Hyundai came up with a solution. (This caused me to rack up repair bills with no real permanent solution.) I was assigned 3-4 case managers who promised to help me recover my losses but all of them actively or passively pacified me until I found out my case was arbitrarily closed.

- Ellenton, FL, USA

The contact owns a 2016 Hyundai Sonata. The contact stated that while driving at 65 MPH, the vehicle stalled and there was an abnormal knocking sound coming from the vehicle. No warning lights were illuminated. The vehicle was towed to the dealer. The dealer diagnosed the vehicle with engine failure and stated that the engine needed to be replaced. The dealer performed an Electronic Control Module (ECM) and Knock Sensor Detection System (KSDS) Product Improvement Campaign software update and an engine compression test. The engine compression test was sent to the manufacturer for approval of the engine replacement. The manufacturer denied the request for an engine replacement. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure and informed the contact that the decision was final and that they would not replace the engine since the ECM software update needed to be performed before the engine failed. The failure mileage was 122,076.

- Anaheim, CA, USA

The contact owns a 2016 Hyundai Sonata. The contact stated that the vehicle was consuming an excessive amount of engine oil. The contact stated that no warning lights were illuminated, and no oil leakage was detected. The contact stated that her husband checked the oil level and discovered that the vehicle was consuming an excessive amount of engine oil. The vehicle was taken to an independent mechanic who confirmed the failure and advised the contact to take the vehicle to an authorized dealer. The contact also stated that the independent mechanic changed all the spark plugs due to corrosion. The vehicle was taken to the dealer for a 3-step process which the first step was an oil change. The contact was informed to bring the vehicle back after 1,000 miles however, at 200 miles the oil level was below the normal level. The contact stated that her husband checked the oil level and the vehicle was taken back to the dealer. The dealer was awaiting approval from the manufacturer for another oil change and to apply a sealant to the oil pan which was the second step. The contact stated that step three was to replace the engine. The contact stated that the manufacturer denied the second step. The manufacturer was not contacted by the vehicle owner. The approximate failure mileage was 100,000. The manufacturer was contacted by the owner and they stated there was no recourse and sent a survey via email.

- Waukegan, IL, USA

The contact owns a 2016 Hyundai Sonata. The contact stated that while driving on an incline, the vehicle lost power and slowed down. The check engine warning light was flashing. There was an abnormal knocking noise detected. The contact called the local dealer and was informed that the anti-knocking device was installed in the vehicle. The contact was informed about the main bearing wear and engine replacement. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 91,000.

- Pueblo, CO, USA

Driving at approximately 75 mph smoke started pouring out of engine bay dash lights came on to check HEV system and all of a sudden vehicle became difficult to control more smoke then screeching and a message to turn off engine now appeared fought with steering wheel to get to shoulder and slow to a stop upon opening the hood belt to cam shaft pulley had snapped

- Denison, TX, USA

The engine keeps stalling and the engine light is flashing. The engine burns oil every 1,000 miles and the oil light will illuminate and go away. The dealership has said they fixed the issue but the issue keeps arising with no resolution. This issues is known for all Hyundai's and they are not doing anything about it. My car has stalled out on highways and I don't feel comfortable driving it out of the state.

- Bristow, VA, USA

Car lost power and went into limp mode, it was pretty dangerous. The car is burning a large amount of oil and is making the spark plugs dirty. I have brought the car for about 6 oil consumption tests and Hyundai does nothing to fix it. Engine oil light has come on twice, and even the dealership said that it should not be burning so much oil.

- Cary, NC, USA

Engine developed spontaneous loud knock and check engine light illuminated while driving at approximately 60mph. Could not continue driving and had to pull over on the side of a busy highway. Had to walk down the side of the busy highway to a safe area. Had vehicle towed to an independent repair shop, vehicle diagnosed with catastrophic engine failure due to failure of internal engine components. Repair shop stated this was a known problem with this particular vehicle and engine and manufacturer should be financially responsible for repairs.

- Round Rock, TX, USA

The contact owns a 2016 Hyundai Sonata. The contact stated that while his son-in-law was driving 55 MPH, the vehicle stalled without warning. The vehicle was towed to the local dealer to be diagnosed. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure however, no further assistance was provided. The manufacturer informed the contact that a software update had not been performed on the vehicle. The failure mileage was unknown.

- Longview, WA, USA

The contact owns a 2016 Hyundai Sonata. The contact stated that the engine was consuming an excessive amount of engine oil. The oil warning light was illuminated on the instrument panel. The contact stated that he had to top off the oil level every 3 weeks with 5 quarts of oil. The contact also stated that while driving 65 MPH, the vehicle began to stall as the check engine light illuminated the instrument panel. Despite the failure, the contact was able to drive the vehicle home. The following day the contact drove the vehicle to a dealer. The contact had the spark plugs replaced by the dealer however, the failure recurred within a year of the repair. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 60,000.

- Allentown, PA, USA

Oil light began to turn on when making turns or braking. Took vehicle to location of last oil change, despite only being 2600 miles after the previous oil change and was informed "there was no oil" despite no evidence of any leak. At that rate, I'd be burning a quart of oil every 500 miles. I see there are recalls for this issue on multiple Hyundais including the Sonata, but different years than my 2016 Sonata Sport, and it includes the possibility of an engine fire.

- Arlington, TX, USA

I accelerated my vehicle onto the busy highway after waiting at the stop sign for passing traffic to clear enough. Getting up to efficient speed for the highway, at ~3000rpms, the oil and engine warning lamps flashed and the car jerked while the rpms abruptly dropped below 1500, slowing the car down. Assuming that a sensor initiated -??limp mode-?? I carefully drove ~100ft with the emergency flashers on to get to a safe place to pull over, preventing the possibility of an accident on the busy highway. I popped the hood, there was an odor similar to something being burned. Temperature gauge did not indicate engine running hot. Checked the oil- it was almost empty. This vehicle was last serviced with ~70,000 miles in May at Hyundai-??s service department at the dealership.

- Dadeville, AL, USA

The engine fails before 100,000 miles. Got an error code of P1326 (Wiring inspection/installation and engine replacement and error code P2600. The car suddenly dropped in MPH. Car is sluggish to accelerate and very difficult to go up hill. Little to no power on acceleration. Problem was identified at an independent service center, after inspection, taken to local dealer. Flashing check engine light came on once issue occurred. The engines in the Hyundai Sonatas are poor at best. Multiple people have needed their engines replaced in a very short time.

- Monona, WI, USA

Lots of noise and car started smoking and stopped working while I was on the highway

- Mckinney, TX, USA

engine is the component with the issue. The car is at the dealership and has been for the past almost 6 weeks. car started "stuttering" or "stalling" while my son and I were in the car. My son has special needs. Luckily, it happened on our street and I was able to get back to my home. dealership has identified the problem: The car was 3 quarts low on oil and the oil had been leaking into the spark plugs. The car only has around 32500 miles on it. Hyundai has requested an oil consumption test. This requires me to drive it 1000 miles and have oil checked. They want me to do this 3 times! I will not feel safe doing that, knowing that oil is leaking into the spark plug assembly. I transport my special needs son and another young man who is severely autistic. I cannot take the chance of the car stalling while out driving possibly causing an accident. I barely put 50 miles on my car during a week. It will take me forever to do the oil consumption test. They know oil is leaking into the spark plugs. car started having issues (while in reverse) a week before the check engine light came on. No other warning lamps or messages appeared. Blue Link was contacted. They said the error code indicated a Powertrain problem. I had to have the car towed.

- Mansfield, TX, 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

The intake manifold control runner motor has had to be replaced in my car multiple times. Twice from may 2021 to July 2021. The check engine light would come on and would reduce car performance drastically. Code scanner gave the p200a performance bank 1.

- Columbus, OH, USA