2017 Hyundai Tucson Engine Problems

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.

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

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.

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.

While driving my vehicle, the engine RPM suddenly revved very high, and the vehicle hesitated to accelerate. A warning messaged appeared stating "Transmission too hot stop safely." I was driving up a hill when this happened. I pulled over and turned the vehicle off for about two minutes. When I restarted the vehicle, the warning message disappeared even though the vehicle would not realistically have cooled down that quickly. The issue concerns me because it could create a dangerous situation in traffic if the vehicle loses power or hesitates to accelerate when pulling into traffic or climbing a hill. The problem has occurred without warning and does not leave and persistent warning lights afterwards. I am very scared to drive this car, especially when I have my child with me. If I need to move out of the way and someone is driving that is not paying attention, there will be an accident because of the hesitation and the non-movement when I accelerate. I am reporting this issue in case it is related to a defect with the transmission system in this vehicle.

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)

This car has major oil consumption that affects the engine and catalytic converter. This can cause engine damage and stalls in driving that affect safety on the roads because the car doesn't accelerate properly. There were no warning signals to indicate this being a problem with the car, especially at purchase. This car will get an oil change and in less than a week, the oil is gone and bone dry.

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.

I purchased this car from drive time, and when told about a possible recall on the engine i asked about it. We were told that the issue had been resolved. Not even 10 minutes after driving it off the lot the engine started misfiring, we had done a test drive prior to purchasing this vehicle and nothing had popped up on the dash about any problems. We have been unable to get it looked at. I was not sure if a report should have been filed until now. i am unable to produce photos at this time

Purchased used via Carvana in Sept 2025, check engine light came on while driving it home indicating a pre-existing mechanical defect. We submitted the claim through Silver Rock (Carvana's warranty company) and brought to their approved mechanic. The recommended the following repairs, several that were denied by Carvana/SilverRock: spark plugs, alternator, serpentine belt, fuel injection service, electrical ignition coil. A month later check engine light illuminated again and through further diagnostics the mechanic found that 2 of the faulty spark plugs were an incorrect model/fit for our vehicle and reported that information which resulted in replacement being approved (a month after initial request). Fast forward to January 2026 we experienced the widely reported knocking noise while driving coming from the engine and had it towed. The damage is a thrown rod and damaged bearing, which is consistent with the current oil consumption litigation, requiring engine replacement. Our 2017 Tucson 1.6 L turbocharge is not included in the recall. Furthermore, Carfax report shows last oil change reported was 2023. Carvana confirms an oil change is part of their 150 point inspection before a sale, however unable to provide me with documentation and failed to report a record of the work to Carfax. There are many instances of negligence on Carvana's part from failure to provide record of maintenance, which is also failure to adhere to their standard policy, and declining recommended service directly from their approved mechanic, knowing that this vehicle could be impacted by the well known defects through Hyundai. We are requesting assistance with engine replacement meeting safety standards and ensuring consumer protection.

The contact owns a 2017 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to two independent mechanics, and DTC: P1326; was retrieved. The vehicle was not repaired. The contact was advised not to drive the vehicle and to have the vehicle towed to the dealer. The vehicle was towed to the dealer, and the contact was informed that a diagnostic fee would be charged. The contact stated that the TSB: 21-01-023H was performed in February 2025. The dealer was informed that the same failure had occurred. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 92,200.

The contact owns a 2017 Hyundai Tucson. The contact stated that while driving approximately 70 MPH, the vehicle lost power, decelerated, and the check engine warning light started flashing on and off. The vehicle was parked on the left shoulder of the highway and later driven to the right shoulder with the assistance of a State Trooper. The vehicle was later towed to the local dealer, who diagnosed that the engine had failed and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The contact was informed that the vehicle was previously serviced under NHTSA Campaign Number: 21V727000 (ENGINE). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 66,000.

Engine is burning oil causing the catalytic converter to clog and fail. Hyundai dealership told me after I had the car towed to them for repair on 12/30/2025 that the catalytic converter had already been replaced before in March 2024. I had purchased the car from another dealership March 2025 and the catalytic converter replacement was not on the car fax. I was also I formed by the Hyandai dealership that my car has an extended warranty of 10 year/150,000 miles on the engine due to the known oil consumption issue. My car has 131,000 miles. I was told Hyandai will make it very difficult for engine replacement since I’m a second owner. There needs to be a recall immediately.

Engine lost power suddenly on the highway. Vehicle entered limp mode and became limited to 45MPH and reduced acceleration.

The contact owns a 2017 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, an abnormal pop sound could be heard coming from the engine. The oil warning light was illuminated. The contact was about to merge to the side of the road when the contact noticed a glow on the underside of the vehicle. The contact then pulled into a parking lot, smoke was emitting from under the hood, and entered the vehicle through the A/C vents, and noticed the flames under the hood. The contact stated that the heater was turned on, and the contact immediately turned off the heater. The contact opened the hood and used a fire extinguisher to extinguish the flames. The fire department was called to check the vehicle to make sure the fire was extinguished. The fire department used a thermo reader to make sure that there was no more risk of a fire. The vehicle was towed to the residence. The contact towed the vehicle to the dealer, where it was diagnosed that the engine had failed. The contact was informed that the vehicle had an open recall pending: NHTSA Campaign Number: 21V727000 (ENGINE). The dealer informed the contact that since the recall was not performed, the engine had failed. The contact stated that he was the second owner and that the vehicle was purchased in 2022. The contact was unaware of the recall at the time of purchase. The dealer refused to complete the recall repairs. The vehicle was not repaired. Most recently, the contact was informed that the connecting rod failed and punctured the bottom end of the engine. The vehicle remained at the dealer unrepaired. The manufacturer was made aware of the failure and denied the recall repairs. The failure mileage was approximately 107,000.

am submitting a safety complaint regarding my Hyundai vehicle due to repeated engine power loss (limp mode), excessive oil loss, and a denied engine recall replacement. I initially brought my vehicle to the dealership after experiencing engine power loss/limp mode, engine oil loss, and illuminated check engine warning lights. The dealership confirmed that my vehicle was covered under an engine recall and stated that the recall procedure was completed. As part of this process, the dealership performed an engine combustion-related service and charged me approximately $1,600. After this repair, I drove the vehicle for approximately 1,000 miles. When I returned the vehicle to the dealership, the vehicle entered limp mode on the same day it was brought in, and the check engine light was illuminated again. The dealership advised me that the vehicle had lost an excessive amount of engine oil during the 1,000-mile period. Due to the continued engine issues and oil loss, the dealership requested a full engine replacement under the recall. However, Hyundai denied the engine recall replacement request. The vehicle’s repeated loss of power, excessive oil consumption, and limp mode create a serious safety concern, especially while driving at normal road speeds. I am concerned that the recall remedy was ineffective and that the denial of an engine replacement places drivers at risk. I am requesting that NHTSA review this matter for potential safety defects and improper handling of a known engine recall issue.

I’m submitting this complaint to report what appears to be a serious safety-related engine issue in my 2017 Hyundai Tucson Sport 2WD with the 1.6L DI Turbo engine [T-GDI GAMMA]. I’m aware of NHTSA Recall 21V-727, which covers 2017 Hyundai Tucson models with the 2.0L engine for premature engine bearing wear. The symptoms covered by that recall are nearly identical to the symptoms my vehicle is now showing. My VIN shows no open recalls or service campaigns on Hyundai’s website, but the problems I’m experiencing match those found in many other consumer reports for this same year, make, and model. My vehicle has only 80,000 miles and has had regular maintenance. Examples include loud knocking from the engine that rises and falls with RPM, and metal shavings in the oil. One complaint that reflects the same pattern can be found in NHTSA ID 11680114, which describes engine knocking and metal debris with no warning lights or alerts. My vehicle has also shown no warning indicators. These issues pose a safety risk because they can lead to sudden engine failure while driving. Based on the volume of similar complaints and the overlap with the existing recall, I’m concerned that the defect may affect more than the engines currently covered under 21V-727. I’m requesting that NHTSA review this matter and determine whether Hyundai should extend or expand the recall to include vehicles equipped with the 2017 Hyundai Tucson Sport 2WD 1.6L DI Turbo DOHC 4cyl. Please investigate this issue and hold Hyundai accountable if these defects extend beyond the vehicles already listed.

I know there is a re-call for my vehicles engine and year with model. I am having serious issues with my vehicle related to the recalls for the same year and model. I feel unsafe driving my vehicle and now I do not know what to do.

Oil consumption problem caused vehicle to go into Limp Mode on freeway. Manufacturer states 1qt loss every 1000 miles is acceptable.

vehicle is burning through oil.