general problems of the 2015 Hyundai Tucson - part 1

My 2015 Hyundai Tucson with the 2. 4l engine developed a loud engine knocking sound while driving. The knocking became worse and the vehicle became unsafe to drive due to the possibility of sudden engine failure. The vehicle is currently at a Hyundai dealership and has been there for over a month. The dealership denied the warranty claim stating that a different engine component failed instead of the connecting rod bearing. This engine is part of the known theta ii engine defect issue that has caused engine failures in many Hyundai vehicles. A sudden engine failure while driving could result in loss of power, difficulty steering or braking, and could increase the risk of a crash. I am filing this complaint because the engine failure symptoms match the known defect pattern, and the vehicle may be unsafe if the issue is not properly addressed. Hyundai Tucson with 113,000 miles and failing engine. I’ve been told repairs have amounted to $10,000. I was told my car has severe engine failure and must be replaced by Hyundai of the shoals in tuscumbia, al. Engine failure is dangerous as a fire may start from a metal piece and also loss of control of vehicle is possible. Hyundai has denied warranty as they say the exact part in theta 2 engine settlement is not failing. I have had to complete recalls on this car since the first payment I made on it. The engine knocking began a month ago and that’s about how long the dealership has had my car.

At the time of engine failure, my husband was on the offramp between 140n and 24n at approximately 8:30pm. This ramp is under construction and narrow, but state troopers stopped and were able to push the car to the side of the road. As it was nighttime, my husband and /or other motor vehicle drivers/passengers could've been seriously injured. The car did not display any warning lights or signals. The car was then towed home and then to empire Hyundai in fall river, where it was assessed. It was determined that there were 5 outstanding recalls on the vehicle. Hyundai fixed all, with the exception of recall #966, which was issued and not repaired prior to my purchasing the vehicle. Hyundai corporate was contacted by aaron at empire Hyundai. They (corporate) refuses to replace the engine. According to corporate, this should've been fixed by the independent dealer or owner prior to being sold to me.

On January 7, 2026, shortly after delivery of a used 2015 Hyundai Tucson (VIN [xxx] ), the vehicle experienced immediate mechanical failure while being driven, resulting in sudden loss of power and drivability. Multiple warning lights illuminated on the dashboard at the time of failure. The vehicle became disabled and left the occupants stranded roadside in fairhope, alabama. The exact component that failed is unknown at this time. The failure appears related to the engine, powertrain, fuel/propulsion, and/or electrical systems. The vehicle was not operable after the incident. On January 8, 2026, the selling dealership (sandy sansing Nissan, pensacola, florida) towed the vehicle back to their dealership. The vehicle has remained in the dealership’s possession since that date and is available for inspection upon request. This sudden failure created a significant safety risk due to loss of propulsion while in traffic and exposure to roadside hazards. The problem has not been independently repaired or evaluated by the consumer. No manufacturer inspection has occurred to the consumer’s knowledge. The dealer has not provided a diagnostic report or repair findings. No warning lights or symptoms were disclosed prior to delivery. The failure occurred almost immediately after delivery. The vehicle was sold and delivered by a licensed dealership. The sale is currently in dispute because the vehicle became disabled almost immediately after delivery due to this safety-related failure. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Driving on interstate for approx 30min and the car stopped accelerating. We safely merged off to the side and the car completely shut off. The car would not start. We put oil in and it started up by engine light was on. We got vehicle towed 1hr back into town. We are lucky no cars were behind us to cause an accident. We are also lucky engine did not catch on fire. This happened completely out of the blue. I get my vehicle serviced regularly and serviced at Hyundai dealerships for major repairs. The engine failed us and is available for inspection. Our claim was denied by Hyundai due to my mileage being 10k over the warranty. However they installed the faulty engine so regardless of mileage this needs to be resolved.

Without any notice, the crankshaft seized while driving 55 mph on the highway. We were on a highway with one lane in each direction and a shoulder. No warning lights appeared until after the engine failed. We were barely able to coast to the shoulder at the time. The incident blew a baseball size hole in the engine. The vehicle was towed to over 60 miles to noller Hyundai of lawrence, kansas. The repair was paid for under the Hyundai warranty without me providing any maintenance records. The engine is not in our possession for you to inspect, but I'm sure you could reach out to the dealership where it was replaced.

On [xxx], my husband and I were driving on [xxx] (highway) in the slow lane, when the engine shutoff without any service engine light warning. It was frightening because an tractor trailer was directly behind the car as we lost power. There was no sounds of engine parts knocking or pinging when the problem occurred. The only thing was observed was (two) 2 puffs of smoke seen from the tailpipe, witnessed by my son who was following behind in his vehicle. The vehicle was not able to start after shutdown and had to be towed to my home. We purchased a new battery after assuming battery failure--with no resolve. The vehicle was towed to(two) 2 repair shops with the same conclusion: seized engine after checking open recalls on my vehicle, I contacted Hyundai to check for assistance. The vehicle is now at the Hyundai dealership in mcdonough, georgia for inspection. I am thankful that my husband and I were not injured or laying in a morgue after this frighten ordeal on the highway when the engine suddenly shutoff/seized. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The engine uses about 3 to 4 quarts of oil before a oil change the it will go in limp mode. I have to get it rest and then add oil for the engine to run right. Also transmission don't want to shift 3 to 4 gear it will be 35 mph to 65 before it shifts. When the car goes in limp mode I lose power going up a hill and almost got rear ended. They won't do anything do to its a used car. No lights came on the dash till it acts up.

The engine failed two years ago at 86000 miles. Hyundai replaced the engine for it to start knocking and stop working a year later. I completed all of the first oil changes, slow driving, ect. Seems like an engine problem with Hyundai itself.

--->while I was driving my Hyundai Tucson engine seized (-engine model (lm) 2. 4l theta ii--> 63,664 miles). Yes, the vehicle is available for inspection. ---> as I said before I was driving in a express way when the incident happened. My car just stopped working out of a sudden and I had to take the side road by applying a much force effort from myself not to get hit by several vehicles behind. When I finally managed to step aside, I sensed some sort of smoke smell. And also all warning lights from car dashboard came up with no prior lamp alerts before this incident. ---> I took the vehicle to the nearest repair shop called sam's certified auto repair. And there it was diagnosed that the vehicle engine was seized. So I inmediately called the dealer and the asked me to tow my SUV. There they diagnosed the vehicle with a seized engine too. From there on I found out that these vehicle I bought have a recall and that the this engine model has a major malfunctioning manufacture issues. Then I tried to get an authorization approval for a new engine but it was denied because they stated that I have a savage title.

The engine completely shut off while I was driving 70 mph on the highway. I lost braking and steering power. I had no warning, no lights came on at all. I bought it used on 11/20/2023 and I have only driven it 6,011 miles.

- my engine seized while driving north on [xxx] from san diego to CA. After having it towed to a shop I was informed it was completely out of oil which caused the engine to seize and would need to be replaced. My last oil change had taken place within about 6k miles and should not have been out of oil. Additionally no oil light, engine light, or any light on the dashboard was on to notify me something was wrong. - I was on a major CA highway in the far left lane when the engine seized and would no longer accelerate. I was incredibly lucky to make it across 4 lanes and that there was an off-ramp right there so I could get off the highway. This could have caused a massive pile-up accident. - the first shop it was towed to confirmed no oil and engine seizure. Hyundai has only acknowledged I need a new engine but won't confirm it was due to lack of oil, likely because they know there are massive oil consumption problems with this theta ii engine. - Hyundai has now had my vehicle for 2 months and is denying warranty coverage as I cannot produce 2 out of 9 years of oil change records. I have provided the other 7, which include records of the last 4 years of consistent oil changes. - there were no warning lamps, messages, or other symptoms of the problem before failure. There was no way I could have known anything was wrong or that this was going to happen. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Ticking sound (loud noise ) from the engine and the check engine light is flashing. The mileage on the car is 142600km.

Vehicle code p1326 flashing engine light knocking noises while accelerating indicates of low oil level when accelerating in doesn’t want to accelerate and it feels like it wants to stall out and shut off.

Bought the vehicle as is with "1 owner, who was older" drove it off the lot and rest drove it, at 57,000 miles. Perfect. . . That was November 2023. . 3 days later my car was a little low on gas due to they didn't fill it and I left it be, started it drove about 15 miles and it starts sputtering and almost stalls out. Now here I am in June and beginning of June I hear ticking under hood, thinking it's my oil, I changed it (myself) and here it is 3 weeks later oil keeps burning hot, the oil. Pressue light comes on when I brake and off when I give it gas, and I don't have any power what so ever when trying to accelerate and doesn't pick up speed unless I'm going downhill. I have 2 small children and a single mom working 5 days a week, I need this car to work. Please hellllpp me . We were going up a hill and I almost got rear ended because my car didn't have power. Not to mention the driver seat fuse keeps blowing out and the bolt keeps breaking so now I can't fit comfortably while. Driving and my seat bounces constantly up and down when going over bumps. This was supposed to be my new beginning family car as this is the newest car I've ever owned and it's become an absolute nightmare and I'm scared for me and my children that the engine is going to blow up because that's what it sounds like or I'm going to get smashed by another vehicle due to the fact I have no power.

The passenger door handle will not open from the outside door after using keyless entry or door unlock. This put people at risk if someone is trying to rescue the person from an accident or other critical injury where one needs help to escape from the vehicle. There are numerous reports of this manufacture and model where the front doors or back passenger doors will not open. . Read more...

Engine is burning oil. Have to replenish oil level once a month, started about a yr ago.

Our 2015 Hyundai Tucson check engine light started flashing and went into "limp mode" while driving on the freeway. Limp mode means the car loses power to accelerate, struggles going up hills, and limits speed. Thankfully I was not pulling out. The vehicle was towed that day to a mechanic who found traces of metal in the oil (see documentation). The vehicle was then towed to the Hyundai dealer. The dealer explained there is a common problem with Hyundai engines failing due to rod bearing issues and pistonslap. I later learned the dealership covers the rod bearing issues due to a court settlement from being sued for so many engine issues. The dealership said if they found it was an engine bearing rod issue (ring connecting to the piston) they would replace the engine since it was a safety issue. They claimed if it was a piston slap it would not be covered (even though the bearing rod is connected to the piston and could potentially cause pistonslap). After checking that the car had been taken care of extremely well with oil changes around every 3 months and all safety procedures had been taken they performed a bearing clearance test. The test passed without error detection so they changed the existing knock sensor. We were directed to drive the car and if the sensor turned on again to bring the 2015 Tucson back. We did and a week later, the new knock sensor reported there was something wrong with the engine again. I also noticed when checking the oil that smoke came from the dipstick tube. We took the car to the Hyundai dealer again. They did the bearing clearance test again. It passed again but this time they detected a rattling noise coming from the engine block. According to the records the noise was loudest to cylinder 4. The dealer claimed we needed a new engine that would cost about $9,500. Clearly, this is a piston-manufactured defect. With metal floating in the oil and a limited piston warranty it encourages the owner to drive the car until it brakes.

While driving our 2015 Hyundai Tucson on [xxx] outside of sanford, florida, [xxx], at 70mph, the car unexplainably lost all power and my husband had to veer into the right lane while avoiding traffic at high speeds, and pull onto the shoulder until the the car came to rest. This affected his safety, the cars in the right lane, the cars behind him, and his safety on the shoulder. When he tried to restart it, the engine light came on and he immediately drove home. The following day, we took it to our regular mechanic. After inspecting the vehicle, he told us our engine was completely “shot”. We called the Hyundai dealership in daytona beach, florida. The engine light was on, so we paid to have it towed. The dealership called a couple of days later and after inspection, stated the engine was seized, but it was under warranty. Later, we received a call saying it wasn’t under warranty because a kdsd “recall” was never completed. We had no idea what he was referring to, as we never received a recall notice regarding the kdsd. There was never a recall on a ksds system. Only a service campaign that we were not informed of. Therefore, the engine was a total loss and would not be replaced. There was never a prior indication from any warning lights or symptoms. Upon investigation, I learned that Hyundai was aware of this problem in 2018. Our vehicle was in for regular service on [xxx]. After reading many of the TSB memos, their service campaign began on [xxx]. We never received notice regarding this campaign. Nonetheless, as our car was in for service in September of 2018, they should have made us aware, and performed the software update then and there. The software only warns the driver that there may be a problem. This update doesn’t improve the engine which is defective. It is abhorrent to me that they are still putting lives at risk. Hyundai needs to recall this engine before someone gets killed or is seriously injured. Thank you, [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 55.

I went to get my car looked at a couple months ago and was told the oil pan was leaking . So the day I get it changed the car shuts off while I’m driving ; I began to loose acceleration, the oil light starts to flash , the engine light is flickering while the car is shaking making a knocking noise .

I have a 15 Hyundai Tucson that has been shutting off on me while driving on a highway going between 55 mph to 70 mph. Engine went into limp mode, cel is on and flashing. Knocking noise heard from engine and consuming oil. Diagnosed with p1326 code. Brought to local Hyundai dealership. Even though road test stated normal operation, technician notes that vehicle did stall, shut off, on return to the shop. No codes. Was told Hyundai would not pay for man hours to look into further. So allowed me to drive off their lot. Upon re-search I found, with no help from local Hyundai or the dealership I purchased vehicle from, that my VIN number is associated with the e2 class action settlement that just went live may 2023, that my engine is indeed infected, like a cough before the cold, and has the potential of starting on fire/failure. Now I purchase this vehicle in 08/2023 with no disclosure of this very concerning problem. I am told by Hyundai USA that there is a paper trail that every affected VIN in the settlement has been notified, by law, to owners of affected VIN’s, and still not disclosed. I reached out to Hyundai USA at the national level, was given a case manager, who sent my case to the buyback/legal department. My case manager reached out and stated that my case has been denied due to age and mileage of vehicle (even though automatically extended to 15yr/150,000 miles) I asked what my next steps should be as my vehicle is still shutting off on me while driving and was told to have a different Hyundai dealership diagnose vehicle, but to not tell them all of the information of it already going to one Hyundai dealership. I was told if I hear a noise from the engine that I should pull off to the side of the road and call for a tow truck. I said so Hyundai USA feels good allowing this vehicle to be operated on highways knowing the symptoms I am experiencing. They obviously do not care for my safety let alone passenger safety, nor other motorist on roads.

Bought vehicle from dealership and 20 days later my car shut off as I was driving. Spoke to dealer they had me bring to her mechanic that she use since it was going to be in the shop dealer agreed to put new pads and rotors on. Picked up vehicle, ask them about the problem. They told me that it was all good and that they just cleaned up the mass air sensor that was dirty. Brought vehicle home. Mid of oct driving down highway/55 mph vehicle shut off again on me this time it went into limp mode. Call dealership back and she wanted me to drive it to shop. I stated I’d did not feel comfortable driving it 45 miles in limp mode. Local shop looked at it discussed with dealership. I finally spoke to the shop they gave me the information of the codes. Dealership texted me not phone call told me all about the code it was pulling and recommended that I take it to a Hyundai dealership as there is a service campaign on the vehicle. Dealership sent bank a copy of the service campaign. It states as required by federal law dealers must not place vehicle into customers use until campaign and all open recalls performed on vehicle. Campaign states it is a safety action. Campaign also states q&a on the campaign. Hyundai strongly encourages customers to get this fixed. Also states what will happen if the wear in the engine bearings are malfunctioning. Also states that dealers will inspect and if necessary replace the engine. This is the second time vehicle has shut off while I was driving on wisconsin highways. I have informed dealership that it was the second time that it has done this and that it was unsafe. Then I find out that the first shop I took it to that works with the dealership put in a used transmission a new Cadillac converter days before my purchase, and neither in person prior to signing purchase agreement nor on the wisconsin buyers guide does it show that this dealership replaced anything into this car. I have only driven 1400 miles. I spoke with dealer, she won’t help!.

My 2015 Hyundai Tucson (62,000 mi) has been having issues of late, I’ve been to my mechanic several times and the last 2 times my car was completely out of oil. There weren’t any warning lights and I just felt it was running “weird. ” now I’m told there us a risk of the engine seizing, catching fire, etc. And I have to constantly check the oil. I’m a senior citizen, so this isn’t easy for me. There is an engine defect causing the cars to need excessive amounts of oil and as more damage occurs, the engine eventually fails. What if I’m on a highway and that happens? please make Hyundai fix these engines or give us new cars or enough money to buy a new one. They are stalling and putting us all at increased risk.

I was drive home one night and the car cut off while I was driving I costed into a gas station good thing there was no other cars on the road. I call for a tow truck. The mechanic said it was a bad starter at first. A new starter was place in the car it started for 15 minutes and shut of they checked the starter it was working and that when I told me it was the engine. A very bad internal. Engine problem.

Financed for a 2015 Hyundai Tucson at byrider. On February 25th 2023. Check engine light flashing as I'm losing power unable to stay within speed limit at 40mph. Byrider service asked me to bring it in. I did. They called me back and hour later told me to come get the vehicle and take it to Hyundai. I told them I didn't feel safe driving the vehicle it was hard enough getting the vehicle to them only able to drive 40mph on the interstate. I was told they would have it towed to Hyundai west off pike plaza. They still haven't received the vehicle and I'm unable to reach byrider service waiting for a return phone call. Please help what do I do now?. .

I wish to file a complaint of fraud against Hyundai motors America (hma) for selling me a vehicle with a defective engine and refusing to fix the vehicle once I found out about the defective engines. Hma claims I did not properly maintain my car. I bought my 2015 Hyundai Tucson from manly Hyundai here in my home town of santa rosa, CA. Manly Hyundai is well aware of the fact that I did maintain my vehicle. They have also refused to fix my car claiming that they are overseen by the decisions that hma makes regarding the many vehicles they have sold over the last 10 years or more with these defective engines. See attached documentation. Sincerely, michael hanlon 1911 midway drive, sanat rosa CA mhanlon0417@sonic. Net 707-953-0429.

The contact owns a 2015 Hyundai Tucson. The contact stated that after reaching 100,000 miles, the vehicle started consuming an excessive amount of engine oil. Upon observing oil consumption, the contact stated that he had to add 1-quart of engine oil every 700 miles. The contact stated that previously the vehicle was receiving an oil change every 5,000 miles. The low oil warning light would illuminate on the instrument panel. The vehicle was taken to an independent mechanic however, the mechanic was unable to determine the cause of the failure. The mechanic suggested that oil be added every two weeks due to the excessive oil consumption. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 100,000.

Oil burns it uses alot of oil like if it was leaking oil consumption.

The contact owns a 2015 Hyundai Tucson. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to an independent mechanic where the solenoid was replaced; however, the failure recurred. The vehicle was taken back to the independent mechanic where the knock sensor was replaced. In addition, the vehicle lost motive power, and the check engine warning light illuminated. The vehicle was taken to a dealer where it was diagnosed as needing the knock sensor replaced. The failure recurred. The vehicle was taken back to the same dealer but was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 12,500.

The contact owns a 2015 Hyundai Tucson. The contact stated that while driving approximately 55 mph, the vehicle lost power. The contact stated that the failure occurred on several occasions. The vehicle was able to be restarted after sitting for a while. The check engine warning light was illuminated. The vehicle was taken to the dealer several times, and it was diagnosed that the engine needed to be replaced. The vehicle was not repaired. The contact received three unknown recall notifications that she related to the failure. The manufacturer was notified of the failure. The failure mileage was approximately 90,000.

Driving on a 2 lane highway, engine shut off and left us stranded 2 hours from home. After the car being at the Hyundai dealer for a week, we get a text saying the engine had catastrophic failure. Internal bearing failure. Waiting to see if Hyundai with cover under 10yr/100,000 mile warranty. No light or anything came on prior to failure.

I am writing to express my concerns regarding the recall repair performed on my 2015 Hyundai Tucson on October 5th, 2022. I have received numerous letters from Hyundai regarding an open recall and finally received a notice stating the remedy was ready. I scheduled an appointment with matthews Hyundai of syracuse and took the vehicle for the recall. Unfortunately, after taking the vehicle back to the dealership, I was advised that the check engine light was on and the issue was a result of a faulty knock sensor and purge valve. I was asked to pay more than $100 for the repairs. However, after further discussion, it was concluded that I wouldn't be charged. However, after only two days, the engine check light came on again, and the speed reduced to 45 mph on the highway. I was then told that the problem was from the ignition coil and was charged $232. 72 for the repairs. Despite paying the full price, the same problem occurred again, and I had to take the vehicle back to the dealership seven times, paying a total of $1,160. 67. Throughout this recall repair failure, the vehicle's check engine light would come on, or it would randomly lose power, making a knocking sound and reducing speed even while driving. I no longer feel safe in this vehicle, and it has resulted in thousands of lost wages as it is the only vehicle I use for my work and personal use. On December 1st, I wrote a complaint to the new york division of vehicle safety and was advised to take the vehicle to a different Hyundai authorized dealership for diagnostics. I took the vehicle to burdick Hyundai of cicero, and after a week, they stated they were able to find the problem. However, Hyundai denied the claim for repairs on the vehicle. Since then the vehicle inspection has expired, and I took the vehicle to a shop for inspection. They stated they could not pass the inspection as the vehicle speed would not exceed 45mph.

The contact owns a 2015 Hyundai Tucson. The contact stated that every other week they had to put at least 2 quarts of oil which equals to approximately 8 quarts of oil burning per month. There was no leak found. The check engine light had illuminated. The vehicle had not been taken to the dealer. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 155,000.

It has been over 6 months since there has been a recall on my vehicle (Hyundai recall 218 / NHTSA recall 22v-056). It is a major safety hazard which could cause an engine fire while parked or driving and there is no remedy as of today, Aug. 7th. This needs to be addressed ASAP. Nhtsa might also want to check their numbers/email. . Read more...

Even with have oil changes regularly and just about 2,000 miles ago *synthetic oil* the car started making very weird noises when accelerating and randomly having the oil light pop up. As I drove down the highway, with the pedal to the floor it would not speed up, the car then completely died and would not turn on. After having it towed and inspected they declared the engine was done and could not be fixed. They then informed me that because this issue is so common it makes it extremely hard and expensive to find a replacement engine.

I was driving on the highway about 5 minutes away from home when I was avoid a reckless driver. (I called and reported it to the state police) once I was trying to switch lanes my engine seized up in the middle of the highway. I keep up with the maintenance so I have no idea why it would do that. After getting towed and bringing it to the nearest dealership I was told my engine seized up and now I need to bring it to a Hyundai dealership to get it inspected before receiving service. I wont rice service until August 31st. This all new to me because my car fall in the recall of the many Hyundai's. How can I get rid of my vehicle as a second owner who bought t from a dealership? I don't feel comfortable or safe driving a vehicle like that.