2017 Hyundai Tucson Driver assistance Problems

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

NHTSA ID

11745847

Incident

Jun 23, 2026

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.

NHTSA ID

11737462

Incident

May 11, 2026

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.

NHTSA ID

11735576

Incident

Apr 20, 2026

severe oil consumption. the vehicle eats the oil at an alarming rate. having to fill the oil tank very often and the engine light has been on. it is affecting acceleration at 30mph where the engine warning light will flash. It also completely dies while driving. very unsafe and needs to be resolved.

NHTSA ID

11708573

Incident

Dec 10, 2025

Issue was first noticed in October 2025 - there are roughly 70k miles on the vehicle. It is a 2017 vehicle, and has regular service (oil, inspection). There was a class action lawsuit for this issue (wylie v hyundai), which was settled prior to the purchase of the vehicle. Vehicle stutters when shifting into and out of first gear. A local mechanic and hyundai both confirmed that it was a transmission defect. The Hyundai dealership initially thought it was an actuator issue, but has since said that it is a faulty gear assembly. it has a DCT (dual clutch transmission). Vehicle suddenly stops and is erratic when driving. Coming out of a stop risks the vehicle shuddering; going through an intersection or turning cross traffic is extremely dangerous as the vehicle could stop momentarily and cause a collision. Vehicle is unable to maintain flow of traffic. The problem appears to be widespread - there are various forums we found where others have this same issue. There were no warnings on the dashboard prior to the issue. When issue appeared a check engine light was displayed.

NHTSA ID

11705432

Incident

Oct 14, 2025

- Kept regular 5K-6K oil changes since 2022 when I purchased the vehicle -Took the vehicle to a Hyundai dealership, multiple times, to ask about the engine stalling at a stop or slow turn, and/or jerking. -July '25 new oil change and flushed engine -October'25- no engine or oil lights. Engine seized and needs to be replaced. - VIN didn't populate recall but the symptoms are the same

NHTSA ID

11701095

Incident

Oct 27, 2025

The contact owns a 2017 Hyundai Tucson. The contact stated that while depressing the accelerator pedal, the vehicle failed to respond while stopped at a red light. A dealer was contacted. The vehicle was taken to the dealer to be diagnosed; however, the diagnostic result was unknown. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 95,000.

NHTSA ID

11694844

Incident

Oct 21, 2025

Mileage

95,000 mi

Blind spot warning stopped working due to electric issues. Engine started miss firing causing a turn over issue and loud knocking. Brought to auto shop and was diagnosed that engine is failing.

NHTSA ID

11660881

Incident

May 14, 2025

Sole owner of 2017 Hyundai Tucson with approx 55,700k miles. Check engine light on and car not accelerating properly. Had same acceleration problem a year ago without engine light, Hyundai dealership stated I needed software update on anti judder gds, update was completed by Hyundai and the issue has reoccurred.

NHTSA ID

11656244

Incident

Apr 12, 2025

My car has been burning oil for over a year. there is no leak. I have been putting three quarts in every 4 to 6 weeks. I have now replaced two coil packs and the spark plugs. my engine light is on because it said 3 and 4 was misfiring so i recently replaced those coil packs and now it said spark plug and i replaced it again as well. so the engine light coming on and what it says the problem is is wrong. now when i push the gas it is knocking or missing. not sure how to describe it. no one has looked at it other than a friend that is a mechanic and he says its probably the engine because this kind of car has these problems.

NHTSA ID

11646478

Incident

Mar 5, 2025

All of the lights on the dashboard and check engines light were illuminated. The speedometer would not work and the stick shift would stick in park causing me to have to release the shift lock manually to drive. The failure mileage was 59,450.

NHTSA ID

11626342

Incident

Nov 1, 2024

The engine appears to have a malfunction, particularly related to acceleration and oil consumption. The vehicle is available for inspection upon request. The vehicle experiences sudden jerking during acceleration, which can lead to loss of control and increase the risk of a collision. Additionally, stalling can occur unexpectedly, posing a significant hazard, especially in traffic. Yes, the issue has been confirmed by a local dealership, where they noted the jerking during acceleration and the high oil consumption. Yes, the vehicle has been inspected by the dealership, but it has not been inspected by the manufacturer or insurance representatives. There were no warning lamps or messages prior to the incidents. The symptoms first appeared approximately 8 months ago and is ongoing.

NHTSA ID

11618415

Incident

Feb 7, 2024

The engine started to lose power and then completely died the engine and oil lights came on the car would restart for about 30 sec but would not move when put into drive it broke down on [XXX] extremely dangerous road road with traffic moving above 55 mph I was broke down in the center lane after I called a tow truck and placed a call to the WSP in fear of getting killed on this road this caused extreme anxiety and loss of wages due to this trauma This is the 3rd time this same vehicle broke down The first time I had it towed to the dealership in Bellingham WA where they said it was a cracked spark plug ? And charged $650 to replace still under warranty the 2nd time this vehicle broke down I towed to a certified mechanic it was a burnt valve the repair cost was $4000 and didn't appear to fix the engine knocking noise and was hesitant a short lived band side for a faulty engine that Hyundai did not include this model in class action lawsuit same engine as other recalled motors but they left this car out because they sold so many INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11614525

Incident

Aug 8, 2024

My car has been having engine problems causing it to stall while driving. It won’t go past 20miles per hour even if I press on the gas FULLY. This has been happening on and off for a couple of months now. It also burns thru my oil change in less than a week. I took my Hyundai into the dealer multiple times because of the way it drove since 2019 and they always sent me away saying that it was normal. But this car has been a constant stress in my life. Driving it has felt dangerous. Something is definitely WRONG with it and I’m not sure why this recall on the engine now powering up hasn’t hit yet. Death trap of a car.

NHTSA ID

11599823

Incident

May 1, 2024

I purchased my vehicle on Feb 17th and 2 weeks later the engine shut down on me and wouldnt restart. My mechanic said that i need a new engine.

NHTSA ID

11580998

Incident

Mar 14, 2024

Engine check light came on on 1/4/24 took it to dealership they ran a quick check and they said it had multiple misfires. The car has a lot of carbon buildup and they recommend a 24 hour cleaning which will cost me over $700.00. The car stalls and starts shaking as I speed up. I don't feel that a care with less than 70,000 miles should have this problem. Mine also has now been using up the oil very quickly.

NHTSA ID

11564068

Incident

Jan 4, 2024

The car does not accelerate from a stopped position and when driving it does not shift or allow acceleration. This is especially an issue on hills or when trying to increase speed on the highway.

NHTSA ID

11557068

Incident

Nov 27, 2023

The vacuum pump on my 2017 hyundai has a faulty cap resulting in an electrical error to the CAN system. This causes dash lights abs 4wd parking break stability control tpms sensor check engine light to eliminate and the speedometer to not work. All of the systems are not opperating due to the system not being able to communicate. It is illegal and a safety issue to not be able to use the speedometer.

NHTSA ID

11546189

Incident

Sep 4, 2023

Engine stalled in the middle of the highway. Could not get speed over 30mph to get out of the way of oncoming traffic even with the gas peddle pushed to the floor. Engine light flashing. Finally was able to get over to the side of the road with care bucking and jerking the whole way and stuttered to a stop.

NHTSA ID

11542459

Incident

Jul 19, 2023

I am not a mechanic but when I drive my vehicle, I feel like it doesn't have enough amps to move it along like it's missing something. I have pressed on the accelerator and heard a "winding noise" like the little engine that could but wants to. This is a horrible car!!! I have only had this vehicle for a month and it's a nightmare to drive. It sometimes does not accelerate, and the take-off is unbearable gives me the impression I will be rear ended one day. It even jerks and sputters, even the "rpm" feature shows high acceleration at inopportune times. I had a diagnostic performed and was told the plugs and ignition coils needed to be changed so I did that to the tune of $400 for the parts, and now not even a week later I am being told I need to change them again. How can this situation be rectified? I don't have another $400 every month in addition to the payment and insurance to replace those things every month. I want to know if you all have a fix for this to prevent all this unnecessary money from being spent. I am aware that a tune up is necessary but every month. Please tell me how this can be fixed thank you.

NHTSA ID

11540592

Incident

Jul 20, 2023

The vehicle was serviced not long after I got it as a certified pre-owned vehicle for reprogramming of the transmission, which I told it was a just a reprogramming to make it more reactive. The vehicle would fail to accelerate, or have delayed acceleration. I was not aware at the time that these vehicles were known to have faulty transmissions and if I known this at purchase I would have spent my money on a more reliable vehicle. The vehicles transmission is having issues again, not reversing, not accelerating, etc. The Hyundai dealership I got it from told me that they won't even get me into the dealership for a diagnostic until January 6th,,, which is a huge safety issue. Furthermore, apparently Hyundai is well away of the fact that they have allowed Hyundai owners to drive vehicles with faulty transmission and will not help with extended the warranty on their vehicles. I am 477 miles over 100,00. It seems as though they do not even want to help with repairs, even if they are out of pocket.

NHTSA ID

11533210

Incident

Jul 18, 2023

The check engine light started flashing and the vehicle would not go over 25 miles per hour. Thankfully I was pulling into a parking lot when the reduction in speed occurred. If this had happened on the interstate (which I commute on regularly) it could have been extremely dangerous. Hyundai dealership never returned my calls about service, I had the vehicle towed to another service provider (Jensen Tire & Auto) who performed a diagnostic which showed codes P0300/0302/1326/0011. They also said the engine was 2 quarts low on oil and there was no sign of an oil leak. The vehicle mileage was at 74344. I had oil changed at 71579 miles with full synthetic, and at 66230 miles prior to that. There is no sign of oil leak where I park the car. I regularly change my oil and service my car according to the manufacturer recommendation (just not at the dealership). This problem is not on the recall list for this vehicle, yet there are several instances of this posted in online forums. (https://www.carproblemzoo.com/hyundai/tucson/engine-burning-oil-problems.php). This problem is not due to lack of proper care, but to a dangerous defect in the Tuscon 2017 engine that misuses oil and causes a sudden an unexpected decrease in acceleration.

NHTSA ID

11531908

Incident

Jul 10, 2023

Car has been hesitating to start this last week, Friday 6/2/23 warning lights came on & air conditioning stopped working. My local Hyundai shop is booked 2 weeks out so I already have an appt for 6/13/23. But on 6/2 I barely made it to a shop close to my home for a diagnostic check. Code P1111 was stored, cleared & retested. It's for fuel pump, circuit was tested & no faults were found & test driven with no return of code. Picked up car on Monday 6/5 with no issues. Tuesday car hesitated to start, 3rd time it started with no issue & no warning light/s. Today 6/7 around noon while I was making a turn the car completely shut off without warning. I've also noted that the oil level is always low, I have to check & put in oil at least every 2 weeks but there doesn't seem to be an oil leak. Also from stop to go at a light for example the car hesitates and then jerks forward. In the past I was told at a Hyundai facility that this is normal because of the dual clutch or something to that fact. The incident today was scary as there were a lot of cars behind me and cars coming towards me. The attached pic of warning lights was from Friday, 6/2/23.

NHTSA ID

11525915

Incident

Jun 7, 2023

I had recently just had gotten and oil change less than 2 months ago, I had to take my car back to the dealership because it was taking a while for the car to pick up speed. Once I took it into the dealership they told me my engine needs to be replaced. I know someone else that I know that has a hyundai as well and their engine completely gave out as well. What's going on with the engines. My car doesn't even have 100,000 miles on it yet, there's no way my engine should've gave out.

NHTSA ID

11521333

Incident

May 9, 2023

I took the vehicle in for a recall for unrelated issues to this problem at 90,000 miles (July 6 2022). The technician noted that the vehicle was leaking oil and it needed an oil pan reseal. I brought the vehicle back for this service on March 6 2023. Between the initial recall service and this service, I noticed that the vehicle was consuming a significant amount of oil, beyond regular consumption. On several occasions, after about 1000 miles after the oil was changed, I was adding 2-3 quarts of oil to the vehicle. Moreover, when the oil was changed, the technician who changed the oil, noted that the oil was very dirty despite only going 3000-4000 miles between oil changes. I mentioned this to the Lehigh Valley Hyundai Service Desk and that it was highly unlikely that an oil pan reseal would resolve this. They ordered an oil consumption test and instructed me to drive the vehicle for 1000 miles. I did this and brought the vehicle back in to Lehigh Valley Hyundai on April 1, 2023. They checked the oil, the technician ordered an oil combustion cleaning, and instructed me to drive the vehicle an additional 1000 miles before bringing it back in for the oil combustion test. During this period, I noticed that the vehicle lost a significant amount of power. During a drive back from Widener University, I barely had enough power to drive up hills on the Northeast Extension and almost got into two wrecks due to the lack of power. I took the vehicle back to Hyundai on April 8, 2023 and notified them of this issue. They checked the vehicle out and notified me that the catalytic converter was clogged and needed to be replaced. They gave me a quote of $4000 to complete this service. This service was extraordinarily high priced compared to other mechanic services which cost between $2000-2500. I checked with other services and they indicated that they did not have access to the part and only Hyundai had access to the catalytic converter.

NHTSA ID

11520217

Incident

Apr 6, 2023