2018 Hyundai Tucson

Approximately one month ago I had a high pressure fuel pump installed in my 2018 Hyundai Tucson. While driving on the highway, about ten minutes from home, my car suddenly burst into flames. There were no warning lights in the cockpit. There was no smoke in the cabin. Another motorist flagged me down. I got out of the vehicle just in time for it to become fully engulfed in flame. It burned down on the highway. Police and fire responded. Insurance is investigating. If I was inside the vehicle, I would have certainly died.

The transmission system failed. The vehicle had previously been serviced at a Hyundai dealership for a transmission-related issue and was returned to me as repaired; however, the problem persisted. Shortly after the repair, the transmission failed again, indicating that the issue was not properly resolved. The vehicle is currently available for inspection upon request. The failure occurred while I was actively driving, creating a serious safety risk due to the potential loss of power and reduced ability to safely control or maneuver the vehicle. At the time, my [XXX] child was in the car, placing both of us, as well as other drivers on the road, at risk. The issue was confirmed by the Hyundai dealership following the initial repair attempt. Despite being advised that the vehicle was repaired, the transmission failed again, and the dealership acknowledged that the transmission remains defective. The vehicle has been inspected by the Hyundai dealership’s service department but has not been evaluated by police or insurance representatives. There were no warning lights or messages prior to the failure. The transmission failed unexpectedly after the vehicle had already been serviced and returned as repaired. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The oil consumption issue has begun. At about 75k miles, my 2018 Hyundai Tucson 1.6L Turbo is burning oil at an insane rate. And there is no indicator of it occurring (no codes or anything on the dash) until it's too late. Hyundai is now WELL KNOWN, and aware, for this problem and it is a catastrophic safety issue because of the possibility of the engine seizing and disabling the vehicle. It isn't negligence on the consumers part either, especially when timely and consistent oil changes are being done. *NOTE* My vehicle has had the transmission (6 speed dual clutch) replaced at around 30k miles and is having the same issue again (at 75k miles). So first the transmission and now the engine!

I bought this car 6 months ago. I did not know it had a recall on the engine. The engine just died a week ago. I brought it to hyundai and the confirmed it was a recall and go ahold of corporate. Corporate is refusing to fix the recall because they said "I should have brought it in at the original recall in 2020." I did not own the car there and I was not aware of the recall at all. [XXX] is my husband he is the other owner of the car. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My specific Tucson is equipped with 1.6L Turbo and a 7 speed Dual-Clutch Transmission. I see there are recalls for the 2016 models equipped with the same transmissions, so I'm concerned as to why there hasn't been a recall for the newer models. My transmission was replaced by Hyundai when the car only had approximately 15,000 miles (give or take) and now at 73,000 miles, I'm experiencing the same issue again! The delayed engagement when accelerating from a stop has been stressful, to say the least. I hope this can be taken more seriously and investigated further. Just take a Tucson, like my version, through a Starbucks drive-through and you'll understand just how awful the shudder is. It gets so bad, I worry that the vehicle will shut off.

I have experienced two near-fatal incidents involving a sudden, uncommanded loss of motive power while traveling at highway speeds (approx. 70 MPH). On February 11, 2026, the vehicle entered "Limp Home Mode" without warning, dropping speed to 60 MPH and 2000 RPM in heavy traffic. This caused an immediate and dangerous speed differential, nearly resulting in a high-speed rear-end collision. Simultaneously, the AC system disabled, indicating a severe engine protection event. Manufacturer Negligence: The vehicle was taken to Courtesy Hyundai of Tampa twice for this issue (Code P0087). They performed a "Knock Sensor" replacement and cleared data points, assuring me the vehicle was safe. The failure recurred immediately. I subsequently took the vehicle to Brandon Hyundai on February 13, 2026. Despite my reports of near-fatal highway failures, Brandon Hyundai was instructed by Hyundai Corporate to merely repeat the "Knock Sensor" replacement—a repair that had already failed to resolve the dangerous condition. Critical Safety Admission: On 02/23/2026, Brandon Hyundai Service Advisor Abel Gomez explicitly admitted that this repair is "not a fix, it is a temporary thing until it shows again," yet stated they must follow Corporate’s directive to release the car. Requested Action: Hyundai is knowingly releasing a vehicle with a recurring, life-threatening defect (P0087/Sudden Power Loss) by performing "band-aid" sensor swaps instead of addressing the high-pressure fuel system or internal engine failure. This practice is a direct violation of the Safety Act. I request an immediate investigation into Hyundai’s refusal to perform permanent repairs on GDI engines displaying these catastrophic failure codes.

I am writing this letter to formally document a series of catastrophic safety failures and gross negligence regarding my 2018 Hyundai Tucson. On two separate occasions, including as recently as Wednesday, February 11, 2026, I narrowly escaped a fatal high-speed collision because this vehicle entered "Engine Protection Mode" while traveling at highway speeds. Incident Timeline: Previous Service: I have visited Courtesy Hyundai of Tampa twice for engine-related symptoms and code P0087. They replaced the knock sensor and assured me the vehicle was safe. Safety Incident (Feb 11, 2026): While driving on the highway, the vehicle suddenly lost power, dropping to 60mph and 2000 RPM (Limp Mode) in heavy traffic. This sudden deceleration nearly caused a high-speed rear-end collision. Current Status: The vehicle is currently at Brandon Hyundai (as of Feb 13, 2026). I have been told a review will take 3-5 business days, leaving me without safe transportation or a loaner vehicle. Negligence and Liability: Courtesy Hyundai of Tampa was aware of the recurring P0087 code and engine performance issues. By clearing codes or replacing minor sensors (knock sensor) without addressing the underlying high-pressure fuel or internal engine failure, they released a dangerous, defective product onto the road. This vehicle is clearly covered under the Theta II GDI Engine Settlement and Service Campaign 966. The local dealerships are willfully avoiding a necessary engine replacement to save on internal costs, despite knowing the vehicle is prone to sudden failure. Demand for Action: Immediate Loaner Vehicle: I require a safe rental/loaner vehicle immediately, paid for by Hyundai, while my car is being inspected. Full Engine Replacement: I am demanding a full engine replacement as previously indicated by technicians should the light return. Expedited Review: I am extremely unsatisfied to be told again I have to wait "3-5 business days" for a safety-critical evaluation of a vehicle that has alre

Hyundai Tucson has been jerking and shaking for over over 4 years now and either when taking to the dealership they reset the dual clutch and have replaced the same part twice in the dual clutch. This shaking has been happening since the car was bought brand new like a year after. The vehicle now will get stuck in gear and while driving will go down to 20 mph and get stuck in that speed. This is a serious safety issue. The dealer could replicate the shaking but not the gears being stuck. It has happened on more than one occasion and they just reset something but this continues to happen. There are no warning lights when the gears get stuck it just happens while driving and it has happened twice now in the last 3 weeks.

The situation I’m about to explain has happened twice—once in December 2025 and again on January 22, 2026. In December, the roads were very icy, but there was no snow on the ground. As I made a right turn into a Walmart parking lot, I heard a loud metal-breaking sound while turning. I immediately got out and looked underneath my 2018 Hyundai Tucson SEL but didn’t see anything unusual. After finishing my shopping, I started the SUV to pull out of the parking space. The car was trying to move, but the rear tires were not moving at all. A man waiting for my parking spot noticed this and told me one of the tires wasn’t turning. As I drove home, I heard extremely loud metal noises coming from the back of the vehicle—sounds like metal twisting, breaking, and falling to the ground. At no point did any warning lights come on. I took the car to a highly rated mechanic, Premier Car Care, where they did a thorough inspection and found nothing wrong. After being reassured that the vehicle was safe, I continued driving it. Then on January 22, 2026, the same issue happened again. I was driving to my internship, and the roads were slushy. Suddenly, the Tucson became unstable, slid unexpectedly, and I heard the same metal twisting and breaking noises. This time, the ABS light came on briefly and then went off. The vehicle felt unsafe and unstable, even though I was driving very slowly—around 15 miles per hour. I was terrified and nearly hit someone. I had the car towed through Triple A back to the mechanic, but once again, they were unable to find the cause after inspecting it, and it is sitting in my driveway. I am reaching out because I am on disability, I have three children with autism, and I am also currently in school. I rely on this vehicle, and I truly need help investigating what is happening so this issue can be properly identified and fixed before someone gets seriously hurt.

My 2018 Hyundai Tucson experienced sudden catastrophic engine failure when a connecting rod threw while driving. The engine burned through its oil and the vehicle became inoperable. Hyundai denied warranty coverage for this engine failure because I had not completed the 2021 KSDS (Knock Sensor Detection System) recall. I was never notified of this recall. The KSDS recall is a software update intended to detect engine knock. It does not prevent mechanical engine failure. Denying warranty coverage due to a software update that I was unaware of raises safety concerns, as engine failure can occur suddenly while driving and creates risk of crash or injury. This appears related to known engine issues in Hyundai vehicles. I am concerned this is a broader safety defect affecting other consumers.

While driving on a public road, the vehicle experienced multiple simultaneous, dangerous malfunctions: Dashboard Warnings: All lights illuminated, including engine (flashing), ABS, traction control, airbag, TPMS, and parking brake, which stayed on though disengaged. Engine & Transmission: Tachometer fluctuated wildly in park; engine revved without accelerator input. Shifting to drive/reverse caused unexpected “kicks.” Vehicle sometimes failed to move when pressing gas, requiring engine restart. Driving Issues: Speedometer read 0 or jumped inconsistently. RPM continued erratically while maintaining speed without accelerator. Steering became extremely difficult. I immediately determined the vehicle was unsafe to drive and returned home with it, which was only a couple miles away. Follow-Up: Hyundai advised dealership diagnosis; they suggested a backup camera module will resolve the issues I experienced in entirety, but also in the same email stated that they could not guarantee it would resolve all of the issues I experienced. This is the second major engine/powertrain failure: first approximately ~70,000 miles (full engine replacement), current approximately ~95,000 miles (approximately ~25,000 miles post-replacement). Recurrence indicates a serious, unresolved safety defect. I am deeply concerned for passenger safety, including children. Other owners report similar issues; the attorney general’s office advised reporting to NHTSA. Summary of Safety Risks: sudden loss of control/power, erratic acceleration, dashboard failures, steering resistance, unpredictable handling, recurrence of major defect. I am submitting this report to NHTSA to request investigation of these recurring defects. I do have video documentation of all of this, as well as ALL written communication with Hyundai National Consumer Affairs and the dealership. I am having a hard time uploading them because of the file limits. Please let me know if any of this will be helpful to you.

The engine is burning excessive oil. Down 3 quarts over approx. 3,000 miles. Mechanic verified there are no leaks - it is burning the oil.

High Oil Consumption

Oil consumption, will change oil and within weeks i will be down 23 Quarts of oil

The engine on this vehicle burns oil quickly which is a known defect. I took the vehicle to the dealership and both times I was told everything was working fine. On 12/5/2025 the vehicle just lost power while driving. After getting the vehicle towed to a mechanic they said I needed a new engine.

The car began making a knocking sound on my 5.8 mile drive. On my drive home from work, the knocking was louder, and the car barely accelerated on the highway and over-revved trying to hit at least 50 mph to keep up with the flow of traffic. I took the car to the Hyundai Service Center immediately using city streets rather than the highway. I had a family member follow me to make sure I made it to the service center as well as give me a ride home after I dropped off the vehicle. As I was driving there, the car had a hard time accelerating from a stop and barely maintaining speed of the flow of traffic and the “Check Engine” light came on and flashed as I got closer to the dealer service center. The dealer service center confirmed that the engine needs to be replaced due to the connecting rod bearing failure, a common issue with the 2.0L I4 F DOHC 16 V engine in my 2018 Hyundai Tucson. The Hyundai Service Manager has repeatedly confirmed that the engine issues presented in my car are consistent with a recall for the same model engine found in my car.

DRIVING ON FREEWAY NO WARNING LAMPS ON DASHBOARD. EXIT FREEWAY TO GET GAS AND THERE IS MINIMAL ENGINE PERFORMANCE AND CHECK ENGINE LIGHT ILLUMINATES. CYLINDERS ARE NOT FIRING, NO COMPRESSION. ENGINE FAILURE CONFIRMED BY HYUNDAI SERVICE DEPT AND INDEPENDENT MECHANIC.

The engine and engine management system of my 2018 Hyundai Tucson experienced repeated failures resulting in loss of propulsion and unsafe drivability. In November 2025, while traveling approximately 75 mph on a freeway, the vehicle suddenly entered limp mode without any prior warning, causing an abrupt loss of power in active highway traffic. No warning lamps or messages appeared before the failure. After the loss of propulsion occurred, the check engine light, battery light, and oil light illuminated sequentially. Diagnostic trouble codes P1326 and P0326 were recorded. Initial inspection indicated severe oil consumption despite a recent oil change less than 2,000 miles earlier. A Hyundai dealership replaced knock sensors under warranty. Shortly after release (30 miles), the vehicle again exhibited severe drivability issues, including a flashing check engine light, and required immediate towing. A second Hyundai dealership replaced the short engine block under warranty. Approximately 180 miles after the engine replacement, the vehicle again developed unsafe drivability symptoms, including delayed throttle response, failure to accelerate unless the accelerator was fully depressed multiple times, jerking or lugging when slowing or stopped, and a faint whining noise. The check engine light illuminated again. These failures represent repeated loss of propulsion and unsafe operation following manufacturer-approved repairs, including full engine replacement. The vehicle has been out of service for approximately 57 days and remains in the custody of a Hyundai dealership awaiting diagnostics. The vehicle is available for inspection upon request. The sudden and unpredictable loss of power at highway speed created a significant risk of collision and serious injury to the driver and surrounding motorists.

My car on the expressway wouldn't go over 40 and this was happening intermittently so my car was unsafe. No check engine light but it was just at the dealership for an oil change. Has. been an ongoing problem since I bought the car! Smells, gets hot!

My 2018 Hyundai Tucson experienced repeated no-start conditions. The vehicle was initially diagnosed by Randy Wise Hyundai in Flint, Michigan, and I paid approximately $776 for tune-up services that did not resolve the issue. Shortly afterward, the vehicle continued to fail to start. The dealership later determined the starter had failed and provided an estimate of approximately $985 for replacement. Hyundai Motor America denied goodwill assistance and reimbursement for the prior misdiagnosed repair and stated the starter replacement is customer-pay. The vehicle’s inability to start caused loss of reliable transportation and safety concerns due to being stranded. I am submitting this complaint to document starter failure and potential diagnostic issues affecting vehicle safety.