general problems of the 2018 Hyundai Tucson - part 1

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

My specific Tucson is equipped with 1. 6l turbo and a 7 speed dual-clutch transmission. I see there are recalls for the 2016 models equipped with the same transmissions, so I'm concerned as to why there hasn't been a recall for the newer models. My transmission was replaced by Hyundai when the car only had approximately 15,000 miles (give or take) and now at 73,000 miles, I'm experiencing the same issue again! the delayed engagement when accelerating from a stop has been stressful, to say the least. I hope this can be taken more seriously and investigated further. Just take a Tucson, like my version, through a starbucks drive-through and you'll understand just how awful the shudder is. It gets so bad, I worry that the vehicle will shut off.

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

The engine and engine management system of my 2018 Hyundai Tucson experienced repeated failures resulting in loss of propulsion and unsafe drivability. In November 2025, while traveling approximately 75 mph on a freeway, the vehicle suddenly entered limp mode without any prior warning, causing an abrupt loss of power in active highway traffic. No warning lamps or messages appeared before the failure. After the loss of propulsion occurred, the check engine light, battery light, and oil light illuminated sequentially. Diagnostic trouble codes p1326 and p0326 were recorded. Initial inspection indicated severe oil consumption despite a recent oil change less than 2,000 miles earlier. A Hyundai dealership replaced knock sensors under warranty. Shortly after release (30 miles), the vehicle again exhibited severe drivability issues, including a flashing check engine light, and required immediate towing. A second Hyundai dealership replaced the short engine block under warranty. Approximately 180 miles after the engine replacement, the vehicle again developed unsafe drivability symptoms, including delayed throttle response, failure to accelerate unless the accelerator was fully depressed multiple times, jerking or lugging when slowing or stopped, and a faint whining noise. The check engine light illuminated again. These failures represent repeated loss of propulsion and unsafe operation following manufacturer-approved repairs, including full engine replacement. The vehicle has been out of service for approximately 57 days and remains in the custody of a Hyundai dealership awaiting diagnostics. The vehicle is available for inspection upon request. The sudden and unpredictable loss of power at highway speed created a significant risk of collision and serious injury to the driver and surrounding motorists.

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

I was driving on the highway, about to change lanes, when I looked in my rear view mirror and saw black smoke coming from my appeared to be my exhaust. I immediately started to pull over, and that is when the oil light first appeared on my dashboard. By the time I had put the car in park, the check engine light had also appeared. After calling my boyfriend and a tow truck, I exited the vehicle and noticed a large pool of oil by my front tire. With the car on the tow truck, I could see oil continue to drip out. The car was towed to the local Hyundai dealership. Since this occurred on a Saturday afternoon, the service dept. Was closed, and Hyundai called me on Monday, Aug 11, 2025 to explain that I should contact the auto mechanic that last changed my oil, as the oil plug had fallen out, and my engine had seized. (had I not noticed the smoke right away, I could have been in an accident on the highway when the engine seized. ) I explained to Hyundai that I had my oil changed 3,000 miles ago, and hadn't seen any indication of oil leakage, nor had the oil light come on prior to the incident on Aug 9, 2025. Hyundai insited I contact the oil change mechanics as it was clearly a craftsmanship defect, not the fault of Hyundai parts or material. Hyundai provided photos showing the oil plug was still laying on the block. I visited superior auto (mechanics that did the previous oil change) and they also deny responsibility due to the fact that the car drove fine for 3,000 miles without any indication of oil leakage, so there is no proof of fault craftsmanship.

29 days after I bought a 2018 Hyundai Tucson. The vehicle started making a ticking noise and stopped accelerating. I called the dealership and they said we didn't get a warranty. I said no that isn't correct, no warranty was offered and after seeing all the known engine problems I understand why ken ganley in medina wouldn't offer one. Now not even a month into having this vehicle, I have a brand new 5 year loan and a vehicle that won't move until I put a new engine in it and the dealership won't do anything for me. This is the worst experience I have ever had purchasing a vehicle.

My 2018 Hyundai Tucson 2. 0l gdi engine with only 79,000 miles was "knocking" and wouldn't accelerate. We pulled over and towed the vehicle to the local Hyundai dealer who declared "oil level good but failed bearing clearance test". Diagnosed with a rod and bearing failure. They submitted to Hyundai motor warranty the vehicle needed new engine. They declined. I know this is covered under the Hyundai engine 2 class action lawsuit with the extended 15 year/150,000 mile warranty as a result of the catastrophic engine failures. I have all oil change service records for every 5,000-6,000 miles while I was the second owner, as well as, have obtained another from the dealer who bought it from a rental/lease company starting at 14,000 miles. Hyundai corporate is claiming "exceptional maintenance neglect" because of one missing oil change record from the rental company that I may not be able to obtain as the paper trail for the rental car company only states first owner was rental/fleet.

Won’t shift so that I can gain speed.

While starting and accelerating my 2018 Hyundai Tucson, I began hearing abnormal engine knocking and noticed rough performance. I took the vehicle to an authorized Hyundai dealership, where they diagnosed an internal engine defect. They confirmed the engine issue but refused to cover the repair, citing that I’m not the original owner—despite public information stating that Hyundai’s extended engine defect warranty (related to known bearing failures) applies to all owners for up to 15 years/150,000 miles. This creates a major safety concern, as I drive long distances on highways daily and fear the engine may seize or fail at high speeds. The vehicle remains at the dealership and is currently undrivable. I’ve submitted proper maintenance records, and the issue has been escalated through Hyundai consumer affairs and the better business bureau. This appears to be a widely reported engine defect that Hyundai is not consistently addressing. The lack of coverage and delay in resolution places drivers at unnecessary risk.

On April 12, 2025, my 2018 Hyundai tuson which only has 99,000 miles started stalling out at random speeds. The vehicle stalled going up a hill and would not accelerate it would also not go past 55-60 miles per hour on the highway. There were no check engine lights or codes on the dashboard. The vehicle is also burning oil on 2 occasions when having the oil changed. I feel like my life and others is in danger because the vehicle is stalling at random speeds which could cause a major accident due to this issue. I could be hit by another vehicle while trying to accelerate or merge on the highway. I reported the oil consumption last November and I contacted Hyundai customer care who issued a case number in may 2025 for the stalling issue, they instructed me to take it to the Hyundai dealership to be diagnosed. There is a recall out, but they said my vehicle is not included in it. I took the vehicle to the dealership, and they confirmed the vehicle was stalling and would not accelerate and were able to reproduce the issue. They informed me the vehicle needed a new transmission, and the vehicle only has 99,000 miles. Hyundai and the dealership declined to add the vehicle to the recall campaign for stalling vehicles. I had to cover the cost of $3,000 for a new transmission. I picked the vehicle up on June 6,2025 with the new transmission installed and it is still stalling and won't accelerate past 45 miles per hour.

Over the past nine months, I’ve been experiencing ongoing issues with my 2018 Hyundai Tucson engine and transmission. After four consumption tests and a flush confirming that the engine is burning between 0. 8 and 0. 3 liters of oil for every 1,000, I was informed Hyundai refuses to either repair the issue or conduct testing to determine the cause. The timeline is summarized below: •February 2025 – I was told by [xxx] my vehicle simply did not have enough oil after the last oil change; •March 2025 – I was informed an initial consumption test needed to be completed; •may 2025 – a second consumption test revealed the engine was burning more than 1 liter per 1000 and a flush was completed; •July 2025 – a third consumption test was completed, revealing that while the engine was excessively burning oil, it was not currently at 1 liter per 1000 based on that test; August 2025 – the oil light came on & I was instructed to put a liter of oil into my vehicle to make it to the certified dealer for next steps. The next steps were another consumption test. Unfortunately, because I was told to add oil to make it to the dealership, I was then informed that this added oil would alter the testing, and we had to start over. •September 2025 – I am now awaiting the results of the fourth consumption test. I have receipts for every 6 months or 7,500 of service since purchasing the vehicle. , despite the engine and transmission being under warranty, the dealership has refused to conduct testing to determine the cause of the issue or remedy the excessive consumption. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The contact owns a 2018 Hyundai Tucson. The contact stated that the vehicle was consuming an excessive amount of engine oil with the oil warning light illuminated. The vehicle was taken to an independent mechanic and a dealer to be inspected and two oil consumption tests were performed by the dealer. The oil consumption tests showed no defects with the engine. The dealer performed an engine flush; however, the failure persisted. The contact was advised to have oil changes performed every 3,000 miles instead of the recommended 5,000 miles. The contact stated that recently after having an oil change, the dealer recommended a transmission fluid flush. The contact stated that after the transmission fluid flush was performed, the vehicle jerked and hesitated while depressing the accelerator pedal. There was no warning light illuminated. The dealer was notified of the failure and the contact was provided an estimate for a diagnostic test. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 94,000.

In late September of ‘24 my husband was driving our oldest to school when my 2018 Hyundai tuscon seized mid drive with our son in the back seat with no oil or engine light warning. Husband inspected the oil and I was still full. A Hyundai dealer towed at their expense in October, diagnosed an engine failure. Denied me service since my extended warranty expired and I didn’t have the ksds update. I wish they would as I still owe on the vehicle and I’m out of work. Making this complaint is to only spread awareness that 2017 Tucson with the 2. 0 l engine had an engine failure connecting to rod bearings. My 2018 has the same engine type and failure as the 2017. Hyundai corp fails to recognize the problem. My 2018 didn’t fail due to lack of oil changes as I can I prove that. My 2018 failed on Hyundai’s fault. Now my car sits at the dealership in anchorage, alaska and I still owe 9k and I live in fairbanks, alaska. 360 miles away from me.

Car would not speed up no matter how hard I pressed accelerator, vehicle wouldn't speed up kept going at slower speed had to have towed to dealership. Don't know what is wrong. I was scared someone would hit me, or my speed would cause an accident. Only after issue started did engine light come on.

In may 2024 my Hyundai Tucson died in a middle of an intersection with no warning. Worse than that is Hyundai motor USA informed me that the car was on a recall list for an engine failure issue that was apart of class action suit . Ans further told me that that were obligated to have the highway transportation safety dept notified first consider cause of the issue. They told an inspector from your department was required to inspect vehicle before repairs could be started and or returned fo me. That has not happened and they are using your office as the reason for delay on my vehicle. They have systematically m supplied the same answer to my case with no resolution. I have done everything I can as a consumer to handle my case and believed that they were going through the correct process but the dealer has informed me their own manufacturer and corporate is not following guidelines and handling recalls. This is soo dangerous as this vehicle was already on a list for recall repair and they did not inform me the customer when it was brought in for repairs before this incident.

End of April/beginning of may, driving down highway check engine light flashing loud knocking and loss of power. Got it towed by aaa. Wasnt able to make appt until may 9th. Got it towed to the Hyundai dealership. Got phone call that is filed the bearing test and need a total engine replacement. Was told by the dealership that it could take 3 months or more to get an engine in and get it replaced. They have no loaners, and Hyundai expeacts me to pay out of pocket for a rental for work to keep my job as well as my independent contracting job accounting/taxes. I have to have a vehicle. A rental is easily 1200+ a month. Hyundai refuses to give me a trade in value for my vehicle until the new engine is in. Hyundai also refunded to reimbursement me for a rental until all work is completed and a work order is in hand ( which can be many many months) I dont have money to pay 1200+ a month for a rental and also pay by car payment every month for a vehicle that is stuck at the dealership undrivable because Hyundai installed faulty bad engines. I am stuck and all Hyundai can tell me is that it takes months for the engines. Purchased the vehicle in Feb 2022 and have perfect maintance records, service records and everything else for upkeep. Still owe 15545 on the vehicle and its undrivable. So im paying a car payment on a vehicle that Hyundai made undrivable.

My vehicle had been in the shop for 30 day due to engine shutdown in the middle of the road, I barely was able to get vehicle off the road and avoid oncoming traffic. I got my vehicle back and driven it a total of 40 minutes within a 3 day time period. During my drive to work my vehicle shut off in the middle of the highway and would not turn on again. My concerns are not being taken seriously with Hyundai and it is a disaster waiting to happen. I have a one year old daughter and I can not risk her safety as well as the other on-coming people on the road when it quits and oncoming traffic has to swerve to not t-bone me. Hyundai will not take any action to correct this other than giving it a temporary fix of a 45 minute drive before they allow me to get back on the road and put myself and others at risk of injury.

Abs sensor, downhill light, traction control light stays on. In August 2023 the transmission had to be rebuilt from slipping. After work there is still transmission slipping. Media display goes blank often and will not show all of display sometimes.

While on the highway going 70mph the check engine light flashed on the immediately off out of nowhere and car started aggressively shaking before loosing temporary power. My wife and toddler were in the car and we were all pretty shaken up. Luckily I was able to gain control of the car but I'm concerned that another issue may occur. I immediately took my car in to the shop and they were unable to replicate the issue. Spark plugs, oil, transmission fluid and coolant fluids were all as regular maintenance but no real issue was addressed. My car has also had issues with struggling to accelerate from stop, causing jerking motion and my oil seems to be burning faster than usual.

Check engine light stayed on vehicle transmission unable to shift in reverse and lower power when car is driven in a low speed.

I was driving home from a family get together with my husband and daughter in my car. We smelled something burning, and suddenly smoke was coming out of my center console. I pulled over and flames were coming out of the driver side. As soon as we evacuated the vehicle, it burst into flames. There was no warning, nothing lit up on the dashboard to warn me of this hazard. A witness was driving behind us and called 911 when he noticed flames underneath my vehicle right before I pulled over. A police report was filed and it was reported to my insurance agent, it is currently still under investigation since it just happened 2 days ago during a holiday weekend. My safety and my family's safety was put at risk due to no warning, how fast the vehicle went up in flames, etc. The car was a total loss.

Cvt transmission failed under 70,000 miles. The vehicle is available for inspection upon request. My safety was put at risk due to no warning light or indication of this failure from dick smith Hyundai in greenville, SC during a routine maintenance check. The problem has been confirmed by dick smith service center. The vehicle has been inspected by dick smith Hyundai. There were no warning lamps prior to failure. The characteristics of the cvt appeared in 2018 however; the jerking accelerated over time. Dick smith service center stated not to worry the transmission was okay. October 16, 2023 with less than 70k miles I’m being told I need transmission, starter, & fly wheel.

As I was pulling out of a bank driveway onto a busy access road my car just died. Lost all power. No warning bells, no lights on the dash, no warning at all. This could have potentially caused an accident. I could have been hit by another vehicle as my car was dead. Pushed it out of the way of traffic, checked oil and there was none. Ended up having it towed to the dealership. The dealership told me that my engine had failed and would need to be replaced due to cylinder 3 rod bearing failure due to oil consumption (a known problem from this manufacturer).

The engine has failed in my 2018 Hyundai tuscon. I was driving the car daily since purchasing in July of 2023. Everything was fine until the first week of October, I had just picked up my son and was getting on the interstate when my check engine light came on and my oil light would flash on and off occasionally not persistently. I had the car checked immediately and there was no oil in the car at all. I added oil to the car, but it was too late the engine had already blown. I drove my son to school the next morning and the car sounded like a lawn mower and was knocking continuously. The dealership has the car now and this is a known problem with this model car. The car could've locked up while I was on the interstate with my child and we or others could have been severely hurt in an accident or car fire if the engine caught fire. The dealership is not offering to remedy the situation even knowing this is a known problem for their cars. There is already a recall for most of these cars but for my engine the cut off stops at year 2017, I think this should be reconsidered and 2018 should also be included in the recall as I have read many testimonials regarding people having the same problem I had, there was no indication anything was wrong with the oil or engine until it was too late.

Issues with the 2018 Tucson- transmission has always sputtered, had numerous updates and resets for it. Still an issue. Also it doesn't want to go into gear sometimes and bob when going into drive, or reverse. Slow pick up from a complete stop, the other morning it became a safety became a safety concern when I had my daughter in the car. The car start to move when I stepped on the gas, then stopped in the middle of the intersection of westmedow road and quaker path stop sign four way. The rpm's as I was stepping on the gas was shifting between 5-7 and the car it wasn't moving. Engine- in September I noticed my oil pressure light flashing on and off, this pointed me to check the oil. The oil was very low, added oil to the vehicle. Since then I have had the dealer involved due to high oil burning . In October 7th I had an oil change done and no oil was found in the engine after I had placed oil in it prior. They did the oil change and I went back at the end of October and they had noticed my oil burnt off again. They did the combustion cleaning and returned the vehicle back to me December 21,2023. Since then I drove 950 miles on the vehicle, last Saturday the oil pressure light was flashing as I took my daughter to her dance class, I checked the oil and the oil was reading below the low mark on the dipstick. I returned to the dealer that morning for the oil consumption test, in which they said it was only a quart low which seemed odd to me since it was low on the dipstick. I have had corporate involved as well and all my concerns have gone as this is normal for your car. Hyundai has had issues with my year Tucson, from my research since I started having the issues they have settled a lawsuit for the problems with the engine and transmission which I have in it. My research, as the vehicle ages, the engine burns large amounts of oil and transmission failure, stopping while driving. I would like them to replace the engine and transmission before my warranty is up.

This very low mileage vehicle recently had the same incident for I believe the fifth time since I've owned the car. In a very dangerous situation the car exibited the car going almost dead after normal acceleration. It regains power after 3-5 seconds and rapidly returning to acceleration. It happened to my wife soon after purchase and she has refused to drive it since. Last week while I attempted to make a left turn at a yellow light it again went dead and traffic was forced to slow while the car behind me almost rea ended me. Recently the engine seems to run rough at times. Never have I seen any engine trouble lights since I've owned it. Three separate Hyundai dealers have looked at and seemed to be aware of what's causing it, but chose their words carefully. My neighbor owns one of the largest new cars dealerships in the midwest. I spoke with him about this problem and he said his used car manager would never purchase one with this engine/transmission for resale! a Hyundai service manager told me to get rid of it soon. When told I was planning on gifting it to my daughter, he said he wouldn't. . . The car only has 33,000 miles and looks new. Always garaged, never driven in snow.

Immediately after purchasing the car I stopped for gas. When pulling out of the parking lot and onto the road, the transmission stalled. The car did not move, the rpms jumped to 5-6 and the lurched and jerked forward then stopped and lurched forward again with the rpms jumping high. This had happened numerous times to various deplgrees since purchasing the car 48 hours ago. There were and continue to be no warning lamps or messages on the dash. I have an appointment with the dealer to have it assessed in a week. This is dangerous because it causes the vehicle to not pull into or cross traffic in a smooth, sage and predictable manner, potentially causing a collision.

Back in January of 2023, car would not go into reverse. While out driving the engine light came on and went into safety mode. I had no power to merge onto highway and make it up hills to get to Hyundai service repair. They said the gear actuator failed. They repaired, but within a week the car was not going into reverse and engine light came back on. They had my car for over a month with no loaner car. They replaced transmission. Car only had 32,000 miles on it. Yesterday, July 28, car started losing power in traffic. Sometimes car would lurch. Engine light on so I pulled into grocery store parking lot. Turned car off and when I turned back on a loud clunking noise. Called Hyundai and drove to service. The entire time the car struggled to merge or go up hills. They ran test and said the gear actuator failed. So this is a trend. It is under warranty but that is not the point, this is dangerous and you can get stranded or the car can lurch or loose power at any time. I complained to Hyundai the first time and they did nothing except repair under warranty guidelines.

The car has acceleration issues and when you try to press down on the gas it sputters and loses power, it is becoming a safety hazard when driving 45 mph or higher. If you try to pass another vehicle it slows down and almost stops, we have had to pull to the side of the road to avoid being in an accident. This is not normal for a vehicle to do this and something needs to be done before we end up dead.

It started July 17th 2023 when I took my car to the dealership due to it going into limp mode. The dealership took it in and said it was throwing error code p1326 which is the knock sensor code. They replaced the knock sensor, drove my tuscon home after the replacement, by the time I got home it went into limp mode again, took my car back to the dealership turns out it was a faulty sensor they received. So the dealership replaced the sensor again, did not have an issue with it until decemember 2023, so I took it to get the error code read again and it was the p1326, so I make an appointment with the dealership to bring it back in and they said Hyundai of America says it needed the combustion chamber cleaing, which I had to pay for. Even though it was throwing the p1326 error code. But after the cleaning is done I pick it back up and not even ten miles from the dealership my car goes back into limp mode, so I turn around and take it back. They just got back to me on 2/27/24 sying hyundia of America is decling to replace my engine since its no longer under warranty.

Tucson 2. 0l hesitation at acceleration particularly from a rolling stop: this intermittent problem was checked initially by marhofer Hyundai in cuyahoga falls ohio, their findings were negative. We then took it to great lakes Hyundai in streetsboro and they said they were aware of the problem and reset the computer, but it did not resolve the problem. This problem has put my family in harm's way many times, making a turn from a rolling stop the car lags into ongoing traffic. Our last visit to dealership we were told car was out of warranty 19,000 miles but the problem was never fixed. This vehicle was a certified pre-owned and have an extended warranty. I have attached a technical service bulletin.

I received a letter in the mail stating the nock sensor has been replaced I dont know howlong ago but my 2018 tucan is stuck in false sage mode saying the nock senor was bad! if it is a on going issue and there is has been a recall on the part why does it show no recalls for my mode car?.

I have only owned the car for 1 month. I had gotten an oil/filter change and a new oil pressure sensor at ~80,100 miles. I had requested the oil sensor be changed because it would flicker on and off when the car was idling/low rpms once it had heated up fully. This had fixed that issue seemingly. At ~80,700 miles the car had started riding a bit "rough", especially at higher speeds, so I decided to have a look under the hood. I was terrified to see that my dipstick was bone dry. There was never any evidence of any noticeable leak underneath the car on the driveway nor any evidence of blue smoke coming out of the exhaust. After some research (Hyundai corporate was telling me over the phone multiple times that there was no known issues with my specific car/engine) I was appalled to see I was essentially lied to. I found multiple official tsbs, NHTSA notices, and hundreds if not thousands of other customers noting the exact same experience. I had tried to take it to Hyundai for the oil consumption tests laid out in multiple tsbs but I was denied "due to the original warranty expiring". To my knowledge this exact issue has caused Hyundai and kia to extend to 150k miles for all owners. This is my only mode of transportation and I am so worried my car will stall/seize/catch fire on the highway. This is beyond unsafe and unacceptable but I assume I may have to wait until the final litigation hearing in September for official recalls to be issued. If my car makes it that long.

When I accelerate from a stop sign or yield it jerks and hesitates to accelerate. I have to release the gas and push again sometimes doing this multiple times when this happens daily. I've taken it to hyundi shops and they say it's a normal chararistic if a tuscan. It also uses an excessive amount of oil. I am told this is because of the engine. If I go change my oil right at every 3k miles my oil level is well below the minimum line so I have been changing it every 1500 miles.