2017 HYUNDAI TUCSON reports

UNKNOWN OR OTHER · ENGINE · FUEL/PROPULSION SYSTEM

While driving down the highway, the check engine light started to flash. Once the car was turned off and back on again, it shook violently. It was hard to keep it in the lane and I was worried it would cause an accident. It was driven off the highway while constantly shaking. Once it sat off for roughly 30 minutes, it would turn on, but wouldn't turn over and drive. It was towed to a dealership where it was diagnosed, though I was never given anything past a verbal "it stopped compressing". It turns on and over, but makes a grinding noise. It will die and turn off the engine after roughly 45 minutes. This had never happened before. *I've been told a few different things by people who hear about the problem, but I've never received a real diagnosis by the Hyundai dealership it is located at. It has always had a oil consumption problem, adding roughly one quart of oil every 800-1000 miles. It has had oil changes every 5,000 miles. It also had a hard time when cold-started accelerating, but would work fine once heated up. It is available for inspection upon request.

STEERING · POWER TRAIN · FUEL/PROPULSION SYSTEM

The issues is the engine shuts off at idle or in motion. Sometimes hard to start but it cranks over well. Then when it restarts after a shut down, three lights stay on some traction control, the steering and a picture of a car downhill with a clock or engine RPM light. No check engine light on. Then recently the tachometer doesn’t work after a shutdown then restart. But when you turn off the engine with ignition, then restart the third time. The lights all go off then the RPM gauge works. But the whole time the engine runs great. When I check ECM all is good no Fault codes, I monitor fuel pressure the low psi is 40 the high side is 999 psi. Is this a common issue with these cars?

ENGINE

My name is [XXX]. My husband, [XXX], and I purchased a 2017 Hyundai Tucson (VIN: [XXX]) from a Hyundai dealership in 2023 with 53,920 miles for our daughter to commute to school. The vehicle now has approximately 77,940 miles, and she is still attending school. Since purchasing the vehicle, we have consistently returned to the same Hyundai dealership for regular maintenance, trusting its professionals to keep the vehicle safe and reliable. While driving on the freeway, our daughter suddenly lost engine power. The vehicle slowed down and would no longer accelerate. Thankfully, she managed to exit the highway before it stopped completely. Highway patrol assisted her in moving the vehicle to the roadside. The Check Engine Light and oil-pressure warning light came on, the engine made a pronounced knocking sound, and it would no longer run. We believe these symptoms closely resemble the engine defect described in Hyundai's Recall 209 (NHTSA 21V-727), involving connecting-rod-bearing failure in certain 2017 Tucson vehicles. Hyundai Motor America denied our request for assistance, stating that our VIN is not included in the recall and that no warranty coverage applies. We respectfully question whether vehicles experiencing the same or substantially similar defect may have been excluded from the recall. We request a technical investigation into why our vehicle was excluded and whether its engine failure is related to the recalled defect. This was a serious safety concern, not merely a repair expense. Our daughter could have suffered a serious accident had she been unable to exit the freeway safely. We are grateful she escaped without injury. We respectfully request that Hyundai reconsider its decision, review the vehicle's maintenance and diagnostic records, and investigate the engine failure. If the failure is related to the recalled defect, we ask Hyundai to cover the cost of engine repair or replacement. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

POWER TRAIN

The contact owns a 2017 Hyundai Tucson. The contact stated that while stopped at a stop light, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the accelerator pedal was depressed to the floorboard, and the vehicle jumped forward and then stopped. The contact stated that the vehicle was stuck in the middle of a busy highway. The vehicle was coasted to the shoulder of the roadway. The vehicle was taken to the dealer, where it was diagnosed with a dual clutch failure. The contact was informed that the dual clutch needed to be replaced. The contact stated that the failure was a known failure with the vehicle. The manufacturer was made aware of the failure, and a case was filed. The contact was informed that the repair was not covered under a special coverage program. The failure mileage was approximately 133,000.

POWER TRAIN · ELECTRICAL SYSTEM · ENGINE

On [XXX], I purchased a 2017 Hyundai Tucson from DriveTime, located at 6400 Pensacola Boulevard, Pensacola, FL 32505. Within approximately nine days of purchase, the vehicle began experiencing serious mechanical problems, raising significant concerns about its safety and roadworthiness. On [XXX], the vehicle suffered a severe loss of acceleration and was unable to exceed approximately 30 mph. This sudden reduction in engine performance created a dangerous situation while driving, particularly when attempting to maintain normal traffic speeds. Following these issues, mechanical inspections revealed water inside the spark plug wells, a severely rusted ignition coil, and a failing catalytic converter. Firestone estimated the catalytic converter repair at approximately $5,000. The presence of water and corrosion raised concerns about possible pre-existing damage and whether the vehicle had been properly inspected before being sold. The vehicle remained in repair-related custody for approximately 29 days. Despite repeated communications with DriveTime, the mechanical problems were not satisfactorily resolved. DriveTime representatives informed me that a replacement vehicle had been approved. On [XXX], I returned to the dealership expecting a replacement but was informed that no suitable vehicle was available. I was left without transportation, and the dealership failed to provide a satisfactory resolution. As of October 21, 2026, I remain without a vehicle. I am requesting that NHTSA investigate the sudden loss of engine power, possible electrical or ignition system damage caused by moisture intrusion, and any similar safety complaints involving the 2017 Hyundai Tucson. My primary concern is that these mechanical failures could cause another driver to experience a dangerous loss of power while operating the vehicle, potentially resulting in a serious collision. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE

engine failure even though this car has always had oil changes at 110,000 miles. I would like the company to fix this since i am not the first to complain about this. I still have the car parked.

POWER TRAIN · ENGINE

The contact owns a 2017 Hyundai Tucson. The contact stated that while driving at 65 MPH, the vehicle unexpectedly stalled and was unable to exceed 30 MPH. The contact pulled the vehicle over to the shoulder of the road, and the vehicle failed to restart. The vehicle was towed to the dealer, where it was diagnosed that the transmission failed and oil contaminated the catalytic converter, causing the catalytic converter to fail and require replacement. The transmission was repaired by the dealer, and the catalytic converter was replaced by an independent repair facility. The contact subsequently observed continued oil loss following the repairs. The vehicle was returned to the dealer, where it was diagnosed that the exhaust manifold headers failed and required replacement. The vehicle was not repaired. The contact requested and received a complete diagnostic report from the dealer. The failure mileage was approximately 90,502.

ELECTRICAL SYSTEM · VEHICLE SPEED CONTROL · ENGINE

While going down the highway at around 72 mph , my car went into limp mode. I was unable to accelerate, the brake and wheel locked. And then the engine light began flashing. The limp mode , non acceleration, and flashing engine light have happened twice before this instance. The first two times the pulled the P1326 knock sensor code and replaced it. Did the update, and sent me on my way saying it was fine. Now this most recent time (the 3rd time), the engine has failed. A CARFAX report says my car already had the engine replaced at 52k miles, meaning there’s 1 something internally wrong and 2 it’s still well within mileage warranty for another engine replacement. This car is extremely dangerous as it can literally stop in the middle of the highway. I went from 72 to about 15 mph in seconds, I was unable to get over or accelerate. It was terrifying. Now dealing with Hyundai - they don’t want to take fault.

ENGINE

Unknown believe it engine was replaced due to engine knock

ENGINE

Failed Component: Engine assembly / internal powertrain (specifically, a connecting rod bearing failure in cylinder #2 causing severe engine knocking and risk of mechanical seizure). The vehicle is available for inspection, the complete vehicle and affected engine assembly are intact and available for inspection upon request at CMA's Hyundai of Lexington Park: [XXX] Safety Risk: A rod bearing failure causes violent engine knocking, severe loss of engine power, and eventual engine seizure or stalling while driving. Losing propulsion unexpectedly—especially at highway speeds or in heavy traffic—creates an immediate collision risk for the vehicle occupants and surrounding traffic due to sudden loss of power, power steering, and power brake assistance. The issue was formally diagnosed and confirmed by an authorized Hyundai dealership service department. The technician performed a physical diagnostic evaluation and officially documented a knocking condition resulting from a connecting rod bearing failure in cylinder #2. Symptoms & Timeline: Initial engine knocking noises first appeared on XXX. The vehicle was previously updated with Hyundai's Knock Sensor Detection System (KSDS) Product Improvement Campaign, which is intended to detect excessive vibration from rod bearing wear prior to catastrophic failure. No check engine light illumination occurred or and type of indication from the vehicle there was something wrong other than the knocking noises. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE

Vehicle was operating normally and when arriving at a gas station to refuel the vehicle would not start after turning off. Vehicle was towed to the dealership (Larry Miller Hyundai Albuquerque, and a seized motor was described as the discrepancy. No further maintenance has been performed.

ENGINE

I am reporting a suspected safety defect involving my daughter's 2017 Hyundai Tucson, VIN [XXX], with approximately 77,940 miles. The vehicle experienced an engine failure beginning with the illumination of the oil-pressure warning light and Check Engine Light, followed by a pronounced engine knocking noise. The vehicle subsequently could not continue running. The vehicle was inspected by a Hyundai dealership, which diagnosed an engine failure. I am aware of Hyundai Safety Recall 209 / NHTSA Recall 21V-727 involving certain 2017 Hyundai Tucson vehicles equipped with the 2.0-liter Nu GDI engine. Hyundai's recall documentation identifies premature connecting-rod-bearing wear and specifically identifies abnormal engine knocking and illumination of the oil-pressure warning light as symptoms that can precede engine damage and stalling. My daughter's vehicle experienced these same symptoms. Hyundai has informed us that this particular VIN is not included in Recall 209 and Hyundai Motor America has denied our request for assistance. I am therefore asking NHTSA to review this complaint as a potential safety defect and determine whether there may be additional 2017 Tucson vehicles outside the current Recall 209 population experiencing the same or substantially similar engine failure. I am not claiming that the vehicle is definitively covered by Recall 209. Rather, I am asking NHTSA to investigate whether the exclusion of this vehicle is appropriate given the similarity between the actual failure symptoms and the defect identified in Recall 209. I can provide the dealership's diagnostic documentation, Hyundai Motor America's denial, photographs, maintenance records, and other supporting information upon request. Vehicle: 2017 Hyundai Tucson, VIN: [XXX], Mileage: Approximately 77,940 miles Failure: Engine knocking, oil-pressure warning light, Check Engine Light, engine failure/stalling Related Recall: Hyundai Recall 209 / NHTSA 21V-727. I INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

STEERING · POWER TRAIN

The contact owns a 2017 Hyundai Tucson. The vehicle was taken to the dealer for an engine replacement due to a separate issue; however, during the service, the dealer discovered that the front axle was leaking and noted that the steering was becoming stiff. The contact had not experienced any issues prior to the vehicle being taken to the dealer. The contact stated that the dealer had damaged the vehicle during the engine replacement. The manufacturer was notified of the failure and stated that the dealer would be contacted about a courtesy repair for the axle. The dealer confirmed the failure.

UNKNOWN OR OTHER · ENGINE

Vehicle is losing a lot of oil. But there is no oil leaking on the ground. Upon looking at the safety recall, it says it might be fire hazardous. I noticed smoke coming from under the hood. Vehicle run rough and also hear sounds.

ENGINE

Franchise dealer Preson Hyundai is actively obstructing a court-ordered settlement tracking test for an engine burning 2.0 qts internally, forcing a young driver with child to operate an oil starving vehicle at risk of highway engine seizure and fire.

ENGINE

I have a 2017 Hyundai Tucson with a 1.6 turbo engine, and I have been experiencing massive oil consumption. Oil is coming out of the tail pipe with occasional big puff of smoke out of the tailpipe. Skipping and hesitation during acceleration, rough cold start, I have previously had the check engine light on with a multiple misfire code. I changed the plugs and the coils, and it did not resolve the problems. I then took it to the mechanic, and he told me that the car has to go to Hyundai because these are known problems with my particular motor. I took it to Balise Hyundai in Hyannis Mass. and was told that they know about these motor issues but could not help me because the engine light was not on.' If the light comes on, then bring it back and we will check it out'.I was then told that any work performed would be my responsibility to pay for it out of my pocket. If it a known problem by Hyundai, then I think that a recall or something should be posted so customers are not stuck with a very big service bill. Any help to get my vehicle running the way it was designed to would be greatly appreciated. Apparently, there are no recalls or campaigns about these issues on my vehicle even though they are well known to Hyundai

UNKNOWN OR OTHER

My transmission warning light is currently on. I’ve had problems with the transmission and the dual clutch. My car falls on the cusp of 2016-2017 dual clutch problems. The 2016 was recalled although 2017 has not. Hyundai has received numerous complaints just like this and nothing has been resolved.

ENGINE

I keep having to add oil but there is no puddle from a leak on the ground. There is also no smoke coming out of the exhaust. It is using an excessive amount of oil.

ENGINE

The contact owns a 2017 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the vehicle was shaking and vibrating abnormally, and the engine was making abnormal sounds. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, and an oil change was performed as associated with NHTSA Campaign Number: 21V727000 (Engine); however, the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 97,000.

POWER TRAIN

What component or system failed or malfunctioned, and is it available for inspection upon request? **Transmission How was your safety or the safety of others put at risk? **Car stalled, no warming. Has the problem been reproduced or confirmed by a dealer or independent service center? **Yes, J&M Transmission in Tracy, Ca Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? **Yes, car was taken in for repair where input shaft speed sensors were replaced. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? **No warning lights appeared at time of malfunction/ stall. J&M later reported check engine light was on when running tests.

ENGINE

Car was driving weird Consuming lots of oil Check engine light flashing Took to mechanic where they replaced the spark plugs and ignition coils, cleared light. Issue was resolved for about a month. Rough idling began car begin to shake while driving. Took back to shop was told rod bearring problem. Upon research found out this is a COMMKON problem among Hyundai vehicles however my vehicle was not apart of the ‘affected batch’. Took to Hyundai and got a diagnostic where it was confirmed that a new engine was needed, for $9000.

POWER TRAIN · ENGINE · FUEL/PROPULSION SYSTEM

The Core Symptoms: "The high-pressure fuel pump is leaking internally. Raw gasoline is flooding into the engine oil crankcase, causing severe fuel dilution. The engine air filter is physically soaked in raw fuel and smells strongly of gasoline." My engine is always extremely hot after I have only went 15 mins away from home. Sometimes takes over two hours to cool down. The Safety Risk: "When attempting to accelerate, the vehicle experiences severe fuel starvation, causing the engine to bog down and act like it is going to stall in the middle of traffic, creating a severe crash hazard. Additionally, there is a loud 'popping' sound/mini-backfire upon turning the vehicle off due to unburnt fuel vapors, presenting a high risk of an underhood engine fire. I have only 83,000 miles on my car.

STEERING · UNKNOWN OR OTHER

Subject: Formal Safety Complaint Regarding Steering Failure – 2017 Hyundai Tucson To Whom It May Concern, I am submitting this complaint to request that the National Highway Traffic Safety Administration (NHTSA) investigate a potentially serious safety defect involving the Motor-Driven Power Steering (MDPS) system in my 2017 Hyundai Tucson. I am the second owner of this vehicle. The vehicle currently has approximately 61,000 miles and remains within Hyundai's 10-Year/100,000-Mile Powertrain Warranty period applicable to subsequent owners. Approximately two years ago, the vehicle's engine was replaced under a Hyundai safety recall. Recently, I began experiencing intermittent steering problems in which the steering wheel becomes extremely difficult to turn and appears to momentarily jam or lock while driving. This condition significantly affects vehicle control and creates a serious safety hazard, particularly during turns, lane changes, or emergency maneuvers. I brought the vehicle to Advantage Hyundai in [XXX] for diagnosis. The dealership determined that the vehicle had a Motor Position Sensor Error (Diagnostic Trouble Code C2401) within the Motor-Driven Power Steering (MDPS) system. The dealership informed me that the repair is not covered under the vehicle's warranty and declined to repair it. The dealer also submitted a request to Hyundai for goodwill assistance (Prior Authorization No. XXX), but Hyundai denied that request. I subsequently contacted Hyundai National Consumer Affairs (Case No. XXX) seeking assistance. Unfortunately, Hyundai also denied my request despite the relatively low mileage and the serious safety implications of the steering malfunction. My concern extends beyond the cost of repair. A malfunction in the electronic power steering system that causes steering to bind, jam, or become difficult to control presents a significant risk of a crash, injury, or loss of life. Steering is one of the most critical safety INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE

The contact owns a 2017 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, an abnormal knocking sound was heard coming from under the hood, and the RPMs independently increased. The "Check Engine Oil" warning light illuminated. The contact managed to pull over to the shoulder of the road, and the vehicle was towed to a local Midas shop, where it was diagnosed with total engine failure.The vehicle was towed to a local dealer, who discovered metal shavings in the engine oil pan during diagnosis. The vehicle was not repaired due to the high cost. Upon further investigation, the contact associated the failure with an unknown NHTSA Campaign number. The manufacturer was made aware of the failure. The failure mileage was approximately 62,000.

ENGINE · FUEL/PROPULSION SYSTEM

#1. This vehicle uses a lot of oil !!! It burns through it like crazy I have to check the oil every other day. #2. When I come to a stop while driving and give it gas to take off IT WONT GO !!!!! It hesitates and when it does go it LUNGES FORWARD!! This is a huge manufacturer problem not a buyer problem. The engine is junk.! 3. I’ve called numerous places to get help. This car needs to be recalled. This is a huge safety violation. It doesn’t wanna go when you give it gas and when it does, it lunges forward that can cause a huge accident on the highways. This car was made in China. It is junk. I’ve called to get help with this issue and no one wants to help. Nobody returns my calls and I’ll Hyundai wants to do is it even more money out of me when this isn’t my fault the car is junk. For safety concerns I would like someone to call me at [XXX]. This car needs to be recalled and my daughter has one. It’s doing the same thing except hers is a lot worse. Hers is further advance where it’s actually stalling in the middle of the road while driving huge safety violation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE

I am filing a safety complaint regarding my Hyundai vehicle after experiencing a sudden engine failure that appears consistent with known rod bearing and engine defects affecting certain Hyundai engines. While driving, my vehicle began making a knocking noise and shortly thereafter suffered catastrophic engine failure. The engine lost power and became inoperable, requiring the vehicle to be towed. This failure occurred without any prior indication that the engine was about to fail. My concern is that this type of engine failure creates a significant safety hazard because it can occur unexpectedly while driving, potentially causing a loss of power in traffic and increasing the risk of a crash. The dealership inspected the vehicle and engine but did not report excessive sludge buildup. I have provided available maintenance records showing that oil changes were performed during my ownership. Despite this, there appears to be disagreement regarding the cause of the failure. I am aware of reports involving rod bearing and engine failures in similar Hyundai vehicles and believe NHTSA should investigate whether this failure is related to a broader manufacturing or design defect. The cost of replacing the engine is substantial, and consumers may be placed at risk if these failures occur while vehicles are being operated on public roads. I am requesting that NHTSA review this issue and determine whether additional investigation, recalls, or other corrective actions are warranted. Vehicle Information: Year: 2017 Make: Hyundai Model: Tucson Mileage at Failure: Approximately 72,000 miles Date of Failure: [XXX] VIN: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

STEERING · VEHICLE SPEED CONTROL · ENGINE

While traveling on the highway the car began to lose speed rapidly until coming to a complete stop, no warning lights were present prior.

ENGINE AND ENGINE COOLING

The contact owns a 2017 Hyundai Tucson. The contact stated that while driving at undisclosed speeds, the vehicle was consuming an excessive amount of engine oil. The contact stated that oil was frequently added to the engine. The vehicle became inoperable. The vehicle was towed to a dealer, where it was diagnosed and determined that the catalytic converter needed to be replaced. The catalytic converter was replaced; however, the failure persisted. The vehicle was returned to the dealer for inspection, and the catalytic converter was replaced a second time. The vehicle was repaired; however, the failure persisted. No additional repairs were performed. The manufacturer was notified of the failure. The approximate failure mileage was 86,000.

ENGINE

Catastrophic engine failures AT 57k miles while driving, resulted in engine replacment under recall warranty. Timing chain replacement done at 93K miles. Second Engine failure while driving at 107K. Hyundai refuses to fix the engine.

ENGINE

2017 Hyundai Tucson | VIN: [XXX] | Mileage: 75,000 I have owned this vehicle for approximately five years and have experienced severe excessive oil consumption for the past two to three years. The issue was first discovered when the vehicle entered protective mode due to critically low oil levels despite a routine oil change having been performed only a few months prior. I am currently required to add approximately one quart of oil every month to maintain safe operating levels. I visited an authorized Hyundai dealership to have an oil consumption test performed. The dealership informed me that if the test confirmed excessive consumption, I would be required to pay out of pocket for an engine replacement. I declined, as Hyundai Motor America has publicly acknowledged this exact defect in the 2017 Tucson through NHTSA Recall 21V727000, multiple Technical Service Bulletins, and a class action settlement covering 2014-2021 Tucson vehicles with the Nu 2.0-liter GDI engine. My VIN was found ineligible on the class action settlement website despite the acknowledged defect. Hyundai has admitted this engine suffers from premature bearing wear, excessive oil consumption, and risk of engine failure and fire. I am requesting NHTSA investigate why my VIN falls outside current recall coverage despite presenting identical symptoms to affected vehicles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

UNKNOWN OR OTHER

Catalytic converter has now failed twice with only 105,000 miles

ENGINE

The engine (connecting rod bearings in the 2.0L Nu GDI engine) failed. The vehicle entered limp mode with DTC P1326, then died on the road and the engine seized completely (will not turn by hand when attempted; only clicks on starter). It is currently at First Hyundai dealer in [XXX], under Repair Order #XXXand available for inspection. The vehicle suddenly lost power and died while driving on the road. This created a significant risk of an accident or being stranded in traffic. I was on a busy highway and almost got hit twice. There is also a known fire risk associated with this exact defect (oil leaking onto hot engine components), as stated in Recall 209 (NHTSA 21V727). The vehicle was towed to First Hyundai. They have documented the no-start/seized condition on Repair Order #XXX. A prior independent scanner reading showed P1326 before the code was cleared. The dealer has not performed the full diagnostic inspection (scheduled around June 11). Hyundai Corporate (Claim #XXX) has been notified but has not responded after multiple escalation emails. The vehicle first went into limp mode ("Engine Protection Mode") with DTC P1326 on the scanner. Shortly after, the engine died completely and would not restart. This occurred after Recall 209 (bearing/KSDS campaign) was completed on XXX. Additional Details: This is a known issue with premature connecting rod bearing wear. The dealer is refusing to provide a loaner/rental upon drop-off, which contradicts TSB 22-01-023H (Dealer Best Practices for P1326 vehicles). The vehicle has been inoperable since 6/4 ..with no resolution. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

STRUCTURE

Left rear passenger door latch failure to open either from inside or outside. This is a mechanical failure of the cables operating the latch. A passenger could not easily exit the vehicle in an emergency situation, also there is no way short of breaking the glass to easily access or if necessary extricate the passenger in an emergency situation. As evidenced from online searches and forums this failure is all too common and has been addressed with a narrow set of vehicles with an extended warranty applied to this failure. This is an issue of safety. There needs to be a recall to upgrade affected vehicles and their door mechanisms.

ENGINE

I am submitting a complaint regarding a 2017 Hyundai Tucson Ultimate AWD equipped with the 1.6L Turbo Gamma GDI engine. My vehicle currently has approximately 127,000 miles and has experienced sudden engine knocking consistent with rod bearing failure and/or catastrophic internal engine damage. The vehicle has been properly maintained, including regular oil changes. However, the engine began consuming excessive oil without warning. Upon inspection by an independent repair facility, the engine was found to have extremely low oil levels despite being within the normal oil change interval. After refilling the oil, the engine continued making severe knocking noises, and the repair facility advised that the engine is likely non-repairable and requires replacement. This failure appears materially similar to the rod bearing and engine failure issues already widely documented in Hyundai/Kia engine defect investigations and class action settlements involving related Gamma and GDI engine platforms. I have learned that Hyundai extended warranties for certain vehicles with similar engine defects up to 15 years/150,000 miles; however, my specific Tucson trim/engine configuration does not appear included despite experiencing the same type of failure. This vehicle has also previously required major drivetrain repairs under warranty, including two transmission replacements and turbocharger replacement. My concern is both financial and safety-related. A sudden engine failure or seizure while driving could create a serious roadway hazard and risk of loss of power in traffic. Additionally, Hyundai dealerships have advised that replacement engines for this vehicle are no longer readily available. I believe Hyundai should further investigate whether the 2017 Tucson 1.6T Gamma GDI engine should be included in existing engine defect warranty extensions and/or recalls.

POWER TRAIN · VEHICLE SPEED CONTROL · UNKNOWN OR OTHER

The vehicle has experienced life-threatening safety defects during operation; shaking, hesitation, and stalling in high-speed traffic. The vehicle unexpectedly stalled/lost power while driving, putting myself and others in direct risk of collision. The Hyundai dealership claimed it needed an Actuator Gasket replacement, Throttle Body replacement, and ECM/TCM update. The vehicle had NO warning lights until after it stalled, then warning lights illuminated briefly. The Hyundai dealership claimed repairs were "completed" 5/8/26; within 72 hours of "completion" the vehicle's symptoms reappeared. The Hyundai Executive Case Manager has made NO efforts to resolve this LIFE-THREATENING SAFETY issue. This has put myself and children in danger and is legally unsafe to drive.

VEHICLE SPEED CONTROL · ENGINE · FUEL/PROPULSION SYSTEM

My 2017 Hyundai Tucson is experiencing dangerous, sudden engine stalling, which are symptoms directly matching Service Campaign T1B. These critical safety issues surfaced following a total engine replacement in June 2025. Despite the vehicle being within the 12-month/12,000 mile workmanship warranty, the dealership is refusing to honor this coverage or offer goodwill assistance. My claim is based on a documented pattern of physical and technical negligence: - Failure to Update Software: The dealership failed to perform the mandatory ECM/TCM software integration (Campaign T1B) during engine swap, which is required to prevent the exact stalling I am now experiencing. - Dismissal of Warning Lights (Code P0456): One day after the engine replacement was “completed,” I returned to the dealership because the Check Engine Light illuminated with Code P0456. This was dismissed by the service provider without a proper diagnostic resolution, despite being a direct indicator of improper vacuum line reconnection during the engine installation. - Mechanical Negligence (Coolant Leak): Post-engine swap, the vehicle developed a coolant leak, which was a direct result of improper reassembly. Additional proof of the lack of due diligence during the repair. The lack of follow-through, combined with the dismissal of a life-safety defect and poor physical workmanship, suggests a total failure in the case management process. I am urgently requesting assistance to resolve this hazardous situation.

UNKNOWN OR OTHER · VISIBILITY/WIPER

The panoramic sunroof glass suddenly shattered while the vehicle was being driven on the interstate, with no visible impact, object strike, or prior damage observed. The component involved is the sunroof glass panel, and it has already been removed and replaced through insurance repairs, so it is not available for inspection (however, pictures are available upon request). The incident created a loud, explosion-like sound and resulted in glass fragments falling into the interior of the vehicle, including onto the driver and the front-seat passenger, causing minor injuries. This also created a significant safety risk due to driver distraction, panic, and the potential for more serious injury while the vehicle was in motion at highway speeds. The issue has not been reproduced or independently duplicated by a dealer or service center; however, it was inspected and documented by the insurance company and repair facility during the claims and repair process, which confirmed that full glass replacement was necessary. The vehicle or component has been inspected by insurance representatives and a repair shop, but it has not been inspected by the manufacturer or law enforcement. There were no warning lamps, dashboard messages, or any prior symptoms indicating a problem before the failure occurred, and the sunroof appeared to fail suddenly and without any advance indication while the vehicle was in motion.

ELECTRICAL SYSTEM · ENGINE

The vehicle has a difficult time turning over when cranking, the RPMs are sticking and the car periodically shuts off at red lights. Several warning lights pop up when it won't crank and then other warnings when the car just completely shuts off at red lights. I drive the interstate in [XXX] daily for work, so with the engine stalling my safety is at risk every time I drive it. Likewise when it won't crank, my safety is at risk. I had two Hyundai recalls updated in my car in 2022, Hyundai Recall 209 which was a connecting rod bearing test and my car passed so they installed the other Hyundai Recall 966 which was software update for the knock sensor detection system to alert the driver of future issues. Those issues are now current. The software is detecting a critical failure which is why the car is shutting off - entering limp mode, or the engine is failing. On April 9th through the 11th, 2026 my vehicle was inspected by a Hyundai dealership, where a technician identified a developing engine concern and advised me to continue driving the vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE

My Hundai Tuscon 2017 was making a whurring sound on the highway, at which time my RPM's were not going over 3. As I was looking for places to pull over on the highway, I heard a loud 'pop' and then my engine started smoking and an intense rattling ensued to where I could hear a series of parts drop out of the bottom of my car. My car began smoking and the engine completely stalled just in time for me to make it to the side of the road. I took it to a local shop for repairs and they showed me three holes in my engine.

ENGINE

The contact owns a 2017 Hyundai Tucson. The contact stated that after the vehicle was taken to the dealer for a recall repair, there was a burning odor coming from the vehicle, with white smoke from the tailpipe. Additionally, the check engine warning light was illuminated. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 50,000.

ENGINE

Knocking noise in motor and metal flakes in the oil. Called local dealership. They report no recalls for this issue.

ENGINE

The contact owns a 2017 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the engine made a ticking sound. No warning light was illuminated. The vehicle was taken to the dealer and was repaired under NHTSA Campaign Numbers: 20V543000 (Service Brakes, Hydraulic) and 21V727000 (Engine); however, the failure occurred after the recall repairs were performed. The contact stated that while driving at an undisclosed speed, the vehicle stalled and failed to accelerate above 40 MPH. Additionally, while depressing the accelerator pedal, there was an extremely loud ticking sound coming from the engine. The check engine warning light was illuminated. The vehicle was taken back to the dealer; however, the vehicle was not yet diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 67,700.

FUEL SYSTEM · GASOLINE · ENGINE

The contact owns a 2017 Hyundai Tucson. The contact stated that the vehicle was consuming an excessive amount of engine oil. There was an abnormal knocking sound coming from the vehicle. There was no warning light illuminated. Due to the failure, the vehicle was towed to a dealer, and the excessive oil consumption was confirmed. The contact was informed that the vehicle was included in NHTSA Campaign Number: 21V727000 (Engine), and the engine was replaced. The vehicle was repaired, and a family member retrieved the vehicle and drove it to the residence without failure. Several days later, the family member started the vehicle, and fuel started pouring out from underneath the vehicle. Due to the failure, the vehicle was towed back to the dealer and was diagnosed the vehicle with an O-ring failure inside the fuel injectors. The dealer repaired the O-ring, and the contact picked up the vehicle from the dealer. Soon after retrieving the vehicle, fuel started pouring out from under the vehicle at start-up. The vehicle was towed back to the dealer and remained with the dealer. The manufacturer was notified of the failure, and a claim was filed. The vehicle was not repaired. The failure mileage was approximately 68,000.

STRUCTURE

the door latches are no longer opening the doors from the inside of the vehicle. This started with the passenger rear and now is effecting the drivers door. The only way to get out of the vehicle is to crawl over the seat to get to a door that is still operational. No warnings, just doesn't open when you pull on the handle. Will be making an appointment with a local dealer/service dept but given the security concerns this is being reported here as well.

ENGINE

The contact owns a 2017 Hyundai Tucson. The contact stated that while starting the vehicle and driving at an undisclosed speed, there was an abnormally loud grumbling sound coming from the engine. There was no warning light illuminated. The contact stated that the vehicle unexpectedly entered LIMP Mode. There was no warning light illuminated. The vehicle was towed to the dealer but was not diagnosed or repaired. The manufacturer was made aware of the failure and informed the contact that documentation of previous oil changes was required. The contact stated that the manufacturer accused the contact of a lack of maintenance, which was associated with the engine failure. The failure mileage was approximately 98,000.

ENGINE

To Whom It May Concern, I am writing to formally escalate an unresolved safety issue involving my 2017 Hyundai Tucson (VIN: [XXX] ) that has now been ongoing for over two years. I have made repeated attempts to complete a safety recall repair through multiple authorized Hyundai dealerships, including Hyundai of [XXX] and Hyundai in [XXX] . Despite scheduling several appointments, I have consistently been turned away, had appointments effectively canceled, or been told that no one is available to perform the repair. This has occurred across more than one location and over an extended period of time. This is unacceptable. A federally mandated safety recall especially one involving the engine is not optional and must be completed within a reasonable timeframe. The continued failure to complete this repair places me at risk and reflects a serious breakdown in both dealership accountability and corporate oversight. Additionally, my vehicle has experienced significant paint chipping. While I understand this may not be a safety recall issue, it has affected the overall condition and value of my vehicle. Given the prolonged delay and inconvenience I have experienced, I am requesting that this concern also be reviewed for potential goodwill repair or coverage. At this point, I am requesting immediate action: Assignment of a case manager A confirmed and honored appointment date for recall repair at a dealership that is able to complete the work Written confirmation that the repair will be completed without further delay Information regarding a loaner vehicle or transportation if the repair requires extended time Please note that I am filing a formal complaint with the Illinois Attorney General’s Office due to the repeated failure to complete a federally required safety recall. If this matter is not resolved promptly, I will pursue additional consumer protection and legal remedies. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

SERVICE BRAKES · ENGINE

My ABS has been sticking and finally the pad broke off. my car made a squealing noise everytime I drove it. I had parked in my driveway and there was a piece of metal on the ground. I showed it to my son, he took the tire off and said it held my ABS Brake pad on to my Driver side rear. He is a master tech for Subaru. I just haven't had time to take it into Hyundai. It has stopped squealing, but my ABS brakes no longer work.

ENGINE

About every 500 miles I have to add about a quart of oil. I brought my car to McDaniels Subaru for maintenance on my car. My son is a master tech there and I know he is very thorough. My contract lets me go there also. So he checked the dipstick and it was below a quart of oil. He did change the oil change. I cannot drive a long distance without carry a large container of oil. He has warned me not to let it get low again or the engine will seize. This car gets all its regular Maintenance on time. I have a contract to do this. The dealership had all the maintenance records at the time I purchased it. It has been very well maintained.

SUSPENSION

On my 2017 Hyundai Tucson, my steering wheel light is illuminated. I took it to the dealership and they said I need a new steering wheel collar. My Hyundai has about 98,000 miles.

ENGINE

On March 10, 2026, my 2017 Hyundai Tucson entered 'Limp Home Mode' while driving, a known safety defect that causes a sudden loss of engine power. Diagnostic testing confirmed error code P1326 (Knock Sensor Detection System - KSDS). Despite this vehicle being covered under the Theta II Engine Class Action Settlement (Recall 209), which provides a 15-year/150,000-mile extended warranty for this specific issue, the dealership (Jim Ellis Hyundai of Atlanta) is refusing to perform the warrantied repair. Instead, the dealership has provided an estimate (#XXX) attempting to charge me $816.22 for the knock sensor replacement. They are also withholding the full GDS diagnostic scan reports and freeze frame data despite multiple written requests. Furthermore, the dealership is threatening to charge daily storage fees while actively denying a mandated safety repair. This refusal to honor the settlement warranty leaves the vehicle in an unsafe, unrepaired condition. This vehicle is a subject of the In re: Hyundai and Kia Engine Litigation II settlement. The refusal of the dealership to perform the KSDS-related repair (P1326}) is a direct violation of the court-approved settlement terms and a failure to address a documented safety defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)