2018 Hyundai Tucson

Excessive oil consumption (failed 3 tests) now adding two quarts a week.... Transmission shifting issues (already had a replacement at 65,000 miles. Hesitation with acceleration. AWD and can barely make it up my driveway. Rpms rev when trying to go slow. Already needed a moonroof replaced because the motor died. USB randomly disconnects and reconnects for GPS.

Shortly after purchase, I had an oil change and vehicle inspection performed. I was informed that my engine may have an internal defect causing it to burn oil excessively. I later took the vehicle to a AAA-approved Hyundai service center, where they confirmed that the engine is burning oil due to a known manufacturer issue and that it is not the result of owner misuse or neglect. I have been quoted approximately $11,000 for a replacement engine, which is an extreme and unexpected cost for a recently purchased vehicle in otherwise good condition.

I purchased this car [XXX] as a CPO vehicle from a Ford dealership. By [XXX] the oil pressure light would flicker and it was clear the car was burning a lot of oil between changes. On 8/22 an oil change was completed at dealer. On [XXX] the oil pressure light flickered and it was three quarts down. An oil consumption test was started at 112,000. On Sat [XXX] while driving to dealer for oil check, the car began shuddering violently and the check engine light came on, and went into limp mode. I was on a dangerous mountain pass at the time and it could have been a major issue. The day before a tractor trailer had almost run me off the road, if my car had stalled then I might not be here. Hyundais have a known issue with oil burning and engine damage. Right now I am stuck in a 14K loan with a car that is unsafe to drive. I am not sure what the dealer plans to do, or what the diagnosis is, but its clear these engines are not safe. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My 2018 Hyundai Tucson SEL PLUS limited showed a flashing check engine light on 10/14/2025 and basically gave up acerating pass 60mph while I was driving , I pulled over and called the dealership where I bought it from they told me to drive it in, I did and they did an oil change and filled up, we then began the oil consumption test which I brought it back yesterday 10/24/2025 and was told the whole engine needed to be replaced due to a major oil consumption problem, they advised me to bring it the Hyundai dealership to get it fixed they rudely told me no we can't fix this, we would have to wait for it to flash the check engine light again and it would have to fail a bearings test before it can be fixed and still have a possibly of it not fixing. only confirmed by the lot I bought it from since Hyundai refused to look at it.

The contact's sister owns a 2018 Hyundai Tucson. The contact stated that while his sister was driving at an undisclosed speed, the vehicle briefly jerked and jolted, prompting her to pull over to the shoulder of the roadway to turn off the vehicle. After restarting the vehicle, the vehicle returned to normal functionality, but the failure became a regular occurrence. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed failures with all four fuel injectors and the injector assembly. The vehicle was repaired, but the failure reoccurred. The vehicle was taken back to the independent mechanic, who then diagnosed a failure with the catalytic converter. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 78,563.

My 2018 Hyundai Tucson 1.6 Turbo (VIN [XXX] , 113,000 miles) burns oil excessively and was deemed to need full engine and turbo replacement ($15,382.95). Hyundai refuses responsibility (case #XXX). This is a widespread defect that causes potential loss of power while driving. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I am filing a complaint under the NC Unfair and Deceptive Trade Practices Act (N.C. Gen. Stat. § 75-1.1) regarding Hyundai’s handling of my 2018 Hyundai Tucson (purchased new May 2018). Since 2019, the vehicle has had repeated headlight failures (at least 12 bulb replacements), persistent “bulb out” warnings, and eventually melted wiring requiring headlamp assembly replacement in 2025. These issues were first reported in April 2023 under warranty but dismissed as “could not duplicate.” Hyundai later attempted to deny coverage, only replacing the assembly after escalation to Corporate. At the April 2023 visit, I also reported a rear noise that Hyundai dismissed. After warranty expiration, it was attributed to a leaking shock. Shocks were covered under warranty; failure to act while coverage was active left me unprotected. In May 2023, the engine failed due to oil loss and lock-up. Hyundai retained my vehicle from 5/15–6/30/23 for engine replacement. From Aug–Sep 2025, the car was held an additional 24 days, with no permanent fix for the electrical defect. Overall, my Tucson has been out of service for 60+ days between 2023–2025. Examples of unfair/deceptive conduct: Dismissing documented defects under warranty, only acknowledging later after expiration. Attempting to shift labor costs onto me in Jan 2025 despite warranty obligations. Returning my vehicle with only ~39 miles of gas after requiring me to return a loaner full. Repeated misdiagnoses and delays despite video and documentation provided. These actions are deceptive and unfair, leaving me with an unsafe, unreliable vehicle and causing financial loss and hardship to my work as a self-employed pet sitter and dog groomer. I request the Attorney General investigate Hyundai’s conduct and enforce consumer protections under UDTPA. Service records, receipts, and communications are available upon request.

Van Hyundai Dealership in Carrollton, TX has confirmed excessive oil consumption causing catalytic converter failure that results in the engine stalling and unable to accelerate. We’ve already replaced the catalytic converter once in 2024 because it was full of oil and causing engine failure. Less than a year later (less than 10,500 miles) the same problem was reproduced. The dealership refuses to replace our engine due to the engine defect. This problem directly impacts the engines ability to perform, unable to accelerate on the interstate, and engine stalling which directly impacts our safety and puts our family into a life threatening situation when the engine fails on the highway. The engine has a defect that Hyundai refuses to address. There are no warnings or engine lights that appear beforehand which is extremely concerning and a liability. Hyundai motor company is corrupt. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2018 Hyundai Tucson. The contact stated that while driving at 60 MPH, the vehicle lost automotive power, with the check engine warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed, and the contact was advised that there were metal shavings found on the camshaft sensor. The contact was advised that the camshaft sensor, oil flow solenoid, and variable tee valve were faulty and needed to be replaced. The vehicle was repaired; however, the failure reoccurred 3 months later. The contact stated that while driving 60 MPH, the vehicle failed to accelerate as needed, with the check engine and oil light illuminated. The vehicle was taken to a local dealer, where the vehicle was diagnosed, and the contact was informed that the engine was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 56,942.