2018 HYUNDAI SONATA Complaints

2018 Hyundai Sonata Registered owner [XXX] Vin [XXX] Which qualifies for a replacement engine under the "recall" and "class action" due to engine oil consumption damage. On [XXX] I was driving home from California, and my 2018 Hyundai Sonata made a loud noise and stalled on me while driving on the freeway. On Jan 2, 2025 I towed my 2018 Hyundai Sonata to ABC Hyundai for repairs. I was told the engine failed or locked up. I have a drivetran warranty up to 150k. My vehicle currently has 115k. However, Hyundai denied the engine repair stating that I neglected the maintenance on the vehicle. They were requesting oil change receipts from 2018 when I bought the car. I've submitted all oil change documents that I could find. Most auto shops have purged their system, updated their software and also got entirely new systems, therefore those receipts were not found. Carfax also has a record of oil changes. I did not always take my vehicle to the dealer for oil changes since our family has a certified mechanic that can vouch for all the other oil changes done on the vehicle. Including tune-ups. The dealer and I have provided several oil change receipts approx. 18+ carfax, Hyundai, family mechanic and misc. receipts. That's should be more than enough evidence for Hyundai to honor their warranty. Please help. NOW HMA says t claim for oil consumption and repairs were denied due to the vehicle being outside of warranty based on time and mileage. Once a claim is denied that is the final decision from HMA. This is untrue my vehicle is NOT out of warranty. Due to the oil consumption class action, and faulty engine put in ny car, the drivetran warranty was extended to 150K, and my vehicle is only has 115K and 7 years old. Hyundai put a bad engine in my vehicle to begin with. A few months ago I got a oil change at Firestone, 4 weeks later there wasn't a drop of oil in my car, that is a problem. Everytime I got a oil change, I had to extra oil after 3-4 week INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5

When I bought the car from Mathews in Marion Ohio the car looked like it was already in some form of accident due to a previous owner and I was unaware what caused the accident or any other problems with the vehicle upon buying. I was not presented with a carfax. I have electrical tape at the bottom of my bumper and there’s a problem with acceleration. It accelerates by itself and veers right when I take my hand off the wheel. I’m afraid to drive my car on the highway. I have complained about this problem to Mathews twice. I am now in a loaner until they figure out what’s going on.

Car does not when temperature drops below 30 degrees (Fahrenheit) even when garaged so you cannot drive car and u have to be towed several times at night. Local dealer stated unaware of issues but there is forum of Hyundai owners who have this problem with 2018 sonata. A local mechanic studied issue and did replacement on the relay switch and starter and now car starts in cold weather. It took me four years is stress and I put in complaint to Hyundai and they did nothing to compensate me for parts. This is a very big issue to be somewhere called late at night and not have reliable transportation.

Possible engine recall engine makes nose continuously stay low on oil.Bulletin came out about possible engine recall

I looked up my car on carfax and it shows a 3 different odometer readings. on 10/14/19 it had 15.125 miles. On 03/04/21 it had 61,284 miles. On 02/01/2022 it had 30,371 miles And finally on 3/3/23 it had 38,269 miles. This clearly shows that somewhere along the line, the odometer was changed. My car has been on the shop on several occasions in the less than 2 year time frame

The contact owns a 2018 Hyundai Sonata. The contact stated while driving at an undisclosed speed, the vehicle lost motive power. The check engine warning light was illuminated. Additionally, engine oil was leaking onto the ground while the vehicle was parked. The contact stated that the dealer had previously replaced the spark plugs, and cylinders #3 and #4 twice, and an independent mechanic had replaced the front driver's side CV axle. The vehicle was towed back to the dealer, who determined that the engine had internal defects. The contact was informed that the engine and front CV axles needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but refused to replace the engine. The failure mileage was approximately 86,800.

Lost control of the car - the car was brought in to Hyundai Maxon in Union, NJ and were told the steering column was defective and the car is not safe to be driven, needed a steering column replacement. Dropped the car off 12/12/2024 and was quoted for the replacement of the part (with a new one). On January 17, 2025—36 days after the dealership had my car—I was informed that the required part was unavailable nationally, with no ETA for availability. The fact that this critical part is unavailable at a national level raises significant concerns. Is this indicative of a broader manufacturing issue? Hyundai has provided no explanation or transparency regarding why this part cannot be sourced, further compounding my frustration as a loyal customer.

The contact owns a 2018 Hyundai Sonata. The contact stated that upon entering the vehicle, the contact became aware that the driver’s side seat belt failed to latch securely into the buckle. The seat belt warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the seat belt buckle. The vehicle was not repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 45,000.

2018 Hyundai Sonata with only 128k miles already needs a new engine due to oil consumption. I have done the regular maintenance on the car and have only put roughly 25k miles on the car since owning it

- Component or system that failed: engine (cylinder #4 misfire) - Safety was put at risk twice: once when knock sensor went off on interstate (October) and engine went into limp mode (aka protection mode). Required a tow from the, which was tricky with a vehicle full of passengers. Safety was put at risk gain when vehicle began to stutter/sputter on interstate (December). Drove 4-cylinder vehicle essentially on three cylinders an hour to dealership - Problem has been confirmed by dealer (Southern States Hyundai, Raleigh, NC) - vehicle has been inspected by warranty inspector, who requests approval before disassembling engine to diagnose issue. However, based upon maintenance records and manufacturer's history of engine issues (more on this below), owner should not be liable for investigating a well known issue. At the time of this writing, the issue has been escalated beyond the dealership and warranty to Hyundai Motor America, and currently awaiting the results of their findings. - symptoms of the problem include constant oil leak from vehicle purchase in May 2024 up to engine failure in December 2024. Various temporary remedies (oil changes and repairs, including oil drain plug gasket replacement, crush washer replacement, and replacement of cracked oil pan) did not fix the issue. Additionally, in the October incident, Hyundai dealership (Sport Durst Hyundai, Durham, NC) simply updated the knock sensor detection (KDS) software, despite the vehicle previously receiving the update in 2019 (this can be verified). Finally, owner, noted "engine knocking" (aka 'tapping') in vehicle prior to engine failure. - Hyundai (the manufacturer) settled a class action lawsuit in 2021. Vehicle is one of the vehicles listed under Class Vehicles, but dealer, nor warranty company, nor Hyundai seem to want to resolve issue, which both alienates owner and presents a safety hazard, as the vehicle is unsafe to drive. All claims here will be supposed via documentation and images.