general problems of the 2017 Hyundai Tucson - part 1

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.

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.

- 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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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. . Read more...

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.

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.

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.

It's like the transmission has hesitation before it decides to go. I step on the gas and it doesn't go right away, it takes a couple seconds and then the rpms go up really high. There has been no accident but this has happened many times.

All the lights in the dashboard are on always, also the check engine light as well, and we found a recall issued for these cars campaign 18-01-026, Tucson vacuum pump sealant application/ cap replacement (service campaign t3c) date September 2018.

Vehicle is showing transmission issues that match recall issued for same vehicle and model, problems accelerating and misfiring which appears to be dangerous too drive.

I was driving to work after dropping my son off and I took a right turn onto a street and my car slowed down and the check engine light came on, flashing. I continued to drive to work as I was one minute away and needed to get off the street ASAP. (where I turned had no room for pulling over). I parked my car. I had a prenatal appointment to go to, so I started my car. No check engine light when started until I got on the on ramp to the mass pike, my car went from 50 to 35 in a matter of minutes. I went into the breakdown lane until the next exit which was only a mile or so. I pulled into a gas station and called my husband to come get me as I still had an appointment to go to. After my appointment we retuned to my car and had it towed to the dealership as it is not safe to drive while pregnant. They told me it may be an engine issue and they will try to expedite my car. What annoys me is that this happened before and they claimed it was because I was over my oil change mileage and deemed it my fault and made me pay almost 300 for them to fix it. Yet I feel as if that just bought my engine time before it actually failed. This also happened with my 2015 sonata sport back in like 2018/2019 before someone rear ended me and totaled me. But what is my luck that this happens with 2 of my Hyundai. It is very frustrating.

The acceleration completely stopped, while driving in the third lane, northbound on the 15 freeway in the cajon pass. The dealership informed me the transmission is the cause. The car is still with the service department now. No warning lights. No check engine lights, nothing. The power in the car remained on the car acted as if it was in neutral.

The car was unresponsiveness when pushing the gas pedal, delay when accelerating, shaking, and the gears do not seem to change. This causes problems when trying to merge into traffic, make turns and anytime when acceleration is needed. We took it to the dealership said we needed a dual clutch kit however the VIN does not have a recall therefore want to charge $2264. 00. To fix the problem. It is obviously a manufacture defect. The car has not been inspected by the manufacturer, police, insurance representatives or others. There were not any warning lamps, messages or other symptoms of the problem prior to the failure. This problem has been going on for 6 months.

The contact owns a 2017 Hyundai Tucson. The contact stated that while the accelerator pedal was depressed, the vehicle hesitated and failed to move. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 68,000.

I have fixed everything under the hood and my vehicle will not accelrate over 60. If acclerate to 61mph it would drop down to 40mph.

A couple of months ago, my car came to an abrupt stop in the middle of the freeway, had I not been close to the shoulder, I could have been crushed to death. I was shortly notified through mail that my particular car year and model had several factory safety recalls and to take into service immediately. I booked immediately and their first available spot was January 3rd, 2022. The car was kept for couple of days and I picked it up on the 6th. I was told by the service advisor at Hyundai van nuys that everything was taken care of. Today, just 4 days later my car comes to a near halt yet again in the middle of the freeway, this time with my 9 month old baby in the car seat. The hood of my vehicle was smoking.

The contact owns a 2017 Hyundai Tucson. The contact stated while driving approximately 35 mph, the oil and battery lights illuminated continuously. Additionally, the vehicle decelerated and stalled. The vehicle was unable to restart. The vehicle was towed to the dealer. The contact was informed that there was no oil in the engine. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 55,164.

To whom it may concern , I have a 2017 Hyundai Tucson that has really bad and scary engine and transmission issues , this car has had a recall to fix constant bucking of the engine at slow speeds and even after the recall it went right back to the same behavior and has now developed slow acceleration and has even attempted to stall on the highway during lane changes , it is the only car I have and I have had really difficult times with it and the dealership has once again told me that they have no loaners available and that they likely will need a few days to diagnose the issues if any. The latest problem is a rapid rpm acceleration that despite the speed being under 45 it causes a screen to pop up that states (transmission temp high stop safely) flooded at random by another message saying( a condition with your engine control system has been detected and a full system check is recommended at your convenience) along with that , the air conditioner shuts off at random and fills the car with humid smelly air. They refuse to do anything @ the dealership except give excuses as these warnings and car behaviors come and go as they please and without the evidence they can't fix what is not visibly broken. As a struggling american I can't receive the treatment other makers give their customers and Hyundai has turned their back on american import buyers , and until someone dies this will not become a recall or a problem for them , so with that said , I am hoping that NHTSA can look into these issues as they are scattered throughout many forums and if something happens to me with this car that I am afraid of driving without a choice as I am a contractor for the NY tri state area, I now have this letter as proof of my complaint . Ps , this car is readily available to be driven by any of your investigators if you desire to look further into this . I hope this letter can save some poor college kid or family from injury or the dangers of this car.

Ecoshift dual clutch transmission does not always engage after full stop and may not engage at low speeds (4-6 mph). The vehicle to not always move when the accelerator pedal is pressed and may sputter until it finally engages but safety is jeopardized at intersections/stoplights where engine was asked to supply power and cuts out creating an otherwise unsafe scenario with oncoming traffic. This has happened on several occasions over the past year and has been documented in online forums. It was a known recall item on the previous year vehicle and was flagged by the nhsta. Problem was not confirmed yet, awaiting appointment, but when we purchased the vehicle we were told it was normal for dual-clutch to behave this way. Issues are ongoing and re-occur randomly without warning .

Hello. I recently took my car to the authorized mechanic and had them check on an issue I am experiencing. For some reason, my car frequently hesitates when I go from a complete stop/slow roll to accelerate. For example, if I am stopped waiting to turn, often when I push the gas to accelerate, the car will begin to accelerate and then basically stop. When this has happened, I've pushed my foot down to the floor on the pedal before to make it go and it refused to go for about 20 or so seconds. Additionally, if I am in slow moving traffic and traffic begins to speed up, my car will hesitate to go forward when I try to accelerate. This is a huge safety concern. The mechanic was not able to replicate this issue, but it happens every day or every other day. It makes me scared to drive because it's almost caused accidents. I read I'm not the only one with this issue and honestly, it's a miracle no one has died yet as a result of this faulty issue.

2017 Hyundai tuscan will lose acceleration when driving down the highway or any street. Slow acceleration from complete stop. After pulling over shutting the vehicle off and restarting it will accelerate properly sometimes for minutes, sometimes for days. This has been happening since purchasing the vehicle about 7-8 months ago.

When accelerating from a full stop or yield, vehicle takes up to 3 seconds to fully respond to pedal. Vehicle will move about 5ft forward during this 3 second lag time. After the lag time, the vehicle jerks into motion. Very dangerous to turn onto a busy road with 35mph speed limit.