2020 HYUNDAI TUCSON Engine Problems

I have a 2020 Tucson Sport with 82k miles. Since new, it consumes 1US qt. of oil every 6 month, although I religiously do the tune-up on its recommended intervals using only Mobil 5w-20 synthetic oil. What can I do?

Component: Engine / Electrical System / Fuel System Incident Date: February 9th, 2026 Vehicle Speed: 45-50 MPH Description: While traveling at highway speeds on a major roadway, the vehicle experienced a catastrophic and sudden engine stall without any prior warning or dashboard indicators. The engine shut off completely while in motion, resulting in an immediate and total loss of power steering and power-assisted braking. I was forced to perform a high-effort emergency maneuver in heavy traffic to reach the shoulder and avoid a collision. This vehicle is used to transport myself, my coworker and my family whose lives was placed in immediate danger by this failure. Since the start of the financing agreement, this vehicle has a documented history of recurring sensor issues and failed repair attempts at the dealership (Route 1 Hyundai). The dealership has previously attempted to address electrical/sensor malfunctions, but the root cause remains unresolved, leading to...

This engine has 70,000 miles on it and has burned a quart of oil every 2500 to 3000 miles, two full quarts between oil changes. In talking to others Hyundai owners, they have similar issues. I have owned multiple other brands of vehicles with well over 150K miles and they did not burn any oil. Fords, BMWs, Volvos, and Subarus.

2020 HYUNDAI Tucson Engine blown @ 89,307 miles and 1,265 miles after oil change due to missing oil plug. Daughter drives about 5 miles per day for college and groceries. The day before Thanksgiving 2025, her 2020 HYUNDAI Tucson died about 48 miles down the Highway without warning, no prior warning lights or sounds before shutting down. I had the car towed to the local HYUNDAI dealer in the town where her college is, where they told us the engine was totaled due to a lack of oil and a missing oil plug. I discussed with the HYUNDAI service advisor about having an extended warranty; however, they would not work with me or the company I had the extended warranty with, mentioning they would not cover the engine failure due to the oil plug being missing. I asked the service advisor in a separate conversation whether an oil pan drain...

The car has been burning oil for about two years . Noticed when my oil was changed by my mechanic , he told me oil level was about a quart low . Since that time I have had to add oil every 1000 miles . Approximately 4 quarts between oil changes , which I have done every 5 to 6 thousand miles . I have read that many other people have had same problem. This is a 2020 Tucson, Unlimited Model . Which at the time of purchase was the top model Tucson on the lot . Hopefully this is enough information to help get the consumer some Help in this situation ! Thanks

On December 27, 2025, while driving, the engine suddenly lost power and the vehicle entered limp mode and became undriveable. A warning light appeared and diagnostic code P1326 was later confirmed, indicating engine bearing failure. The vehicle could not be driven safely and required towing to a Hyundai dealership the following day. The engine failure caused a loss of propulsion safety risk. The vehicle remains out of service pending a full engine replacement. The vehicle is available for inspection at a Hyundai dealership.

Vehicle excessively burns oil, engine drives rough, exhaust developed smoke, burnt smell in engine, engine and oil gauge light comes on.

The contact owns a 2020 Hyundai Tucson. The contact stated that the vehicle unintendedly shut off while driving. The vehicle was restarted. There were no warning lights illuminated. The local dealer was contacted and scheduled an appointment. The vehicle was not yet diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 70,000.

the engine failed without warning. While going up a hill the car lost power. Yes, the dealership said it was a known problem. Yes, the dealership fixed the problem by putting in a new engine which I was responsible for 5% of the cost which was 739.66. The only warning that was given was after the car failed, the engine light and the oil light went on.

My adult son was driving and under the hood started to smoke. He pulled over and opened the hood to take a look and then a fire started under the hood! The fire department was called and they put out the fire, cut the gasoline and duct taped it up so the fuel line would not further ignite the hot engine. My insurance is looking into what would have caused a random under the hood fire. Luckily no one was injured. However the engine section of the car is melted beyond belief. My insurance has not told me if the car is repairable or not.

My engine is burning excessive amounts of oil, which is a "known issue" of Hyundai Tucsons. After an oil change with full synthetic oil, I cannot drive my vehicle more than 4,000 miles without reaching dangerously low oil levels. Most importantly, there is no clear indicator of this low oil level—no light that comes on and STAYS on to tell me as the driver to check the oil and see if there is a problem. Instead, if I brake too hard or take a turn to sharply a red oil light will turn on for 1-2 seconds and then turn off again. It is easy to miss. The first few times this happened in May I thought perhaps there was a loose wire on the sensor. After it appeared 3 or 4 times I took it to a mechanic who told me the oil level was so low that they...

Car was fine and I get regular oil changes. Last week all the sudden the car started making noise and just shut off. When my husband checked there was no oil on the dipstick but I park on concrete and the car is not leaking oil. Apparently the motor is blown and completely locked up.

High oil consumption leading to costly repairs outside of warranty.

Vehicle is burning an extreme amount of oil between regular oil changes. We are having no help from our local dealership in Tuscaloosa, AL where we purchased the car to resolve this issue without first spending a lot of money to diagnose an issue we certainly already have. Long before it was due for routine oil change, we checked it and it was COMPLETELY EMPTY of oil. NOTHING IN IT. We have to put oil in it three times before its next routine service. We have always had the vehicle serviced, on schedule, by our local Hyundai dealership and are the only owners of the car.

The contact owns a 2020 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the low oil warning light briefly illuminated. Upon inspecting the vehicle, the contact noticed that the engine oil level was low. The vehicle was taken to the dealer, where the contact was informed that the engine was not consuming oil and that an oil change was needed. The dealer advised the contact to return after 1,000 miles to inspect the oil level. The vehicle was taken back to the dealer; however, it was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 72,000.

Engine oil excessive consumption/burning oil

In between my last 3 oil changes I have “lost” all of my oil in my car. Checked my oil randomly and there was NO OIL at all on the stick. After this last change I have checked it every week. I did not check for 2 weeks less than 1,000miles and it was below the low on the mark. Obviously running out of oil while driving is not safe and can cause the engine to blow. This can cause a crash or fire. There have been numerous issues with this and the cars need recalled. This is ridiculous.

the car started using a little oil around 80,000 mile, and its just gotten worst , to the point that's it using 1 quart per 150 miles the car runs ok but its ridiculous the amount it is using. and from what I've found researching there is a lot of complaints

Engine run hot smoke from engine car cut off wouldn't restart had totaled to Hyundai company in Lithia Springs Ga was told by service guy that engine locked motor needed replaced. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Heavy oil consumption problem - burns through oil completely every 300 miles. Replaced catalytic converter once already.

MOTOR IS CONSUMING A LOT OF OIL. I need to CHANGE EVERY month, which IS VERY EXPENSIVE

Excessive oil consumption. Confirmed by Strickland service centers on last 2 oil changes. Engine is at risk of failure if oil level drops.

Car is burning through oil at a rate of 5L per week.

Car broke down first time about 2.5 months ago. It was towed to Fred Beans Hyundai of Doylestown PA and they did oil testing on it and I was told that the car was burning oil too fast. They told me under warranty they needed to do a carbon combustion cleaning. So that was down, and less than 24 hours of having the car back, the check engine light came back on, the car wouldn’t drive above 50 miles per hour, and was jumping forward (the same thing that happened the first time) I had the car towed back to the dealership and they told me there was still leftover carbon and it needed to cleaned out again. The car was fine for about 2 months, however just today it broke down again. Same problem, check engine light came on and started flashing, the car will not go above 50...

The contact owns a 2020 Hyundai Tucson. While the contact’s daughter was driving at an undisclosed speed, there was an abnormally loud knocking sound coming from the vehicle before the engine seized. The vehicle was towed to the dealer; however, the vehicle was not yet diagnosed or repaired. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 83,500.

High oil consumption. Car shaking , sputtering, Shutting off in traffic. Replaced spark plugs 3 times in a year. Having to top oil off every other week because there will not be any oil in engine. Stopped in traffic.

Engine is consuming 3+ quarts per 1000 miles. There is no low oil warning light or notification, just a low oil pressure light which could be caused by many things that would not cause a vehicle fire like low oil would. Hyundai was contacted and we were told that all we need to do was get our oil changed with them, come back in 1000 miles to check the level, if it was consuming greater than 1 quart per thousand miles we would be scheduled for a combustion chamber cleaning (service tech said this would do nothing to solve the issue), drive 1000 more miles and check level again, and if it was greater than 1 quart per thousand we would be scheduled for a new engine. They were informed that we were the second owner and we were told that shouldn’t be an issue. After completing the oil change...

The contact owns a 2020 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The contact stated that several unknown warning lights were illuminated. The contact was able to pull to the side of the road. The contact called a towing service to jumpstart the vehicle. The vehicle failed to restart. The vehicle was towed to the dealer where it was diagnosed that the crankshaft bearing failed due to foreign material in the engine and oil consumption. The contact was informed that the engine needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was not made aware of the failure. The failure mileage was approximately 122,000.

Excessive oil consumption in the engine. 1 Qt every 900 to 1000 miles. This has been going on a while.

Car had check engine light come on and found out that it had been using oil. Engine started using more than 1 quart of oil every 1000 miles. Catalytic converter had to be replaced because it was plugged. Car had less than 80,000 miles on it when this started happening.

This call actively has a recall on engine rods any Hyundai and some Kia models ranging from 2011 all the way until 2022. They are known for having a faulty motor with active oil consumption and are currently facing several lawsuits and my car is one of these cars facing this issue however, the manufacturer doesn’t want to Fully create a recall on the motor claims that are causing this rapid oil consumption issue I would like this to be investigated as well as it be investigative why you don’t already have their current active recall listed on your website . but if your website was correct and listed the engine, Roddery call, and if my engine rod were to blow, then they would actually address this issue however, some people are getting this issue addressed under their manufacturer warranty however it is becoming extremely difficult because they want us...

Excess Oil consumption cause the engine to die and the car to stall out in the middle of the road. Engine needs completely replaced.

This engine been consuming tons of oil in it and I keep having to add more oil to it and it doing same thing with the coolant causing the engine to heat up a lot and smoked too

The oil pump failed, causing the car to die while on the interstate. There was no prior signs nor warnings to this issue, and it caused the engine to lock up, meaning that the engine now needs to be replaced. This is not unheard of with Hyundai’s.

2020 Hyundai Tuscon engine continually consumes an excess amount of oil on a weekly basis causing cylinder knocks. This vehicle has been routinely maintainanced and continues to experience this issue which is an issue known by the manufacturer and has yet to be addressed seriously by the manufacturer. The vehicle is just out of warranty; however, the issue stems from known engine faults that are the responsibility of the manufacturer.

The check engine light became flashing and the vehicle went into limp mode while occupied by two adults and one minor child as they were merging to access the freeway

I went to Thompson Automotive to finance a vehicle and within a month and half my engine blew. There were no engine lights, no lost of oil, no warning, no signs of any error, before this series of malfunctions took affect. I was on my way to the dealership and my car being slowing down to a complete stop as I was getting off the highway ramp. I was traveling at the speed of 25mph, when the car started to make loud noises that I never heard before that day, and completely shut down in front of a huge tractor trailer in traffic. The dealership has had my car since 6/7/24. Now the car has about 85,000 miles on it. I have to pay another $3,000 for my portion to get a new engine. Which is outrageous considering I just agreed to pay $19,990. I am highly disappointed that I...

I was driving 45mph on a major road when, the vehicle with out warning lost power, I heard rattling, lost power. I turned it back on by the power button, drove into gas station where the check engine light flashed, oil light flickered and didn't turn back on. Car was rattling, turned it off. Got out, checked engine under hood and components. Dip stick had oil. Car had no signs of anything else. Vehicle would not start, called tow. Waited 5 hours for tow. Did not hear back from Hyundai dealership in a month. Submitted all articles of maintenance. Going on two months and was told to resubmit. Three months prior, engine over heated due to original hose component coupler piece melting.

Check engine light came on and went off again prior to waiting the 2 weeks for service. Infamous code P0420 catalytic converter bank 1 code where manifold, catalytic converter, and O2 sensor were replaced at a measly 37k miles.

This is the second Hyundai Tucson that I have owned and the same thing has happened wih both of them. My daughter also bought her Hyundai Tucson the same day as I got mine in June, 2020, and the same thing is happening to her. It starts with the engine warning light coming on, and then finding that the engine oil is low in between oil changes. There is no visible sign of the oil leak (no drops on the driveway, no oil in the engine compartment, etc.) but now the oil is disappearing at an alarming rate. My daughter has had her car looked at, and it appears that she may have to get a new engine, which is what happened with my previous Tucson (2015). Luckily, Hyundai "good-willed" me the replacement of my previous engine, but now I am at, or close to the limit on my extended...

On 8/7/2024 the engine light came on and stayed on. I took the car to my service pro and he did a pcm scan. Error code displayed a catylitic problem on bank 1. This is the secind time this has happened to this vehicle. First time was 2/13/2023, Mileage was 52000 miles. Salem Hyundai replaced the Cat with a new one. On 8/8/2024 I called Salem NH Hyundai to report the issue and have an appt for 8/14/2024. Milage on vehicle is 77181.

Had for a year. 6 months ago, started sputtering, surging, slowing and dying on a regular basis. Have had it shop at Chapman used in Tucson, AZ and Lawley Hyundai in Sierra Vista Arizona 3 times. Chaan couldn't repair, so we went to Lawley. The mechanism there keep saying they cannot reproduce! The engine malfunctions 3-4 time during any drive we do. Has been going on for 6 months.

The vehicle is a 2020 Hyundai Tucson with AWD. Current mileage of the vehicle is 58,309. In the last 10K miles, there have had 4 separate instances of a sustained flashing check engine light that has put the car into limp mode. Since the first instance, a knock sensor, catalytic converter, and spark plug coil, among other things, have been replaced. However, the issues persist and have yet to be resolved. The engine continues to misfire, resulting in dangerous driving situations. Most recently (XXX) the car went into limp mode on an interstate highway where the vehicle was unable to accelerate and could not exceed 2000 RPMs. The code scanner read P1326 - Glow Relay Short Circuit. This was just a week after the vehicle was towed to McGovern Hyundai in Brockton, due to the car being in limp mode (XXX) and the vehicle was given a clean bill of...

The contact owns a 2020 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the vehicle independently decelerated. In addition, the check engine warning light was illuminated. The vehicle was towed to the dealer where it was diagnosed with a knock sensor failure. The contact was informed that the knock sensor needed to be replaced. The vehicle was repaired. The failure reoccurred. The vehicle was towed to the dealer where it was diagnosed with a failed engine and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 101,196.

I was driving home last week when I came across a large crash on the highway. Traffic was backed up for a mile. I decided to turn around through one of those crossovers and head a different way home. I accelerated to catch up to the oncoming traffic when my car suddenly sounded more loud like it was struggling to accelerate. I got onto the off ramp and my car slowed from 70mph to 40mph and would not go any faster. It began lurching and I decided to try to get off the highway and get as close to home as I could as it was 9pm. My car slowed to a stop and the oil light and engine light and battery light came on. A few moments later the whole dashboard lit up and the car died. I popped the hood and to my horror there was literally no...

The "check engine" light has come on at least three (3) times. The first time, the car went into slow down mode. We stopped at a mechanic, who reset the computer so that we could drive it. We then had it towed to our mechanic, who told us about the problems these Hyundai engines are having. He told us that engine replacement was inevitable. It happened two (2) more times. This time, we had it towed to a Hyundai dealer. The first time, they kept the car for two weeks, only to tell us that they could not "replicate the problem". We opened a file with Hyundai USA [Hyundai Case Management #: [XXX]. It happened again. Same message: "Could not replicate the problem." The blogs are full of horror stories about the engines failing during high speed travel. [XXX] The Virginia Lemon Law does not apply until at least three...

I turned on a road that the speed limit is posted 55mph and I accelerated up to about 50 and suddenly my speed dropped back to about 10mph and the car began shaking and the engine light was flashing. There was absolutely no warning at all. I had left my house about 15 minutes prior and everything was fine while I was driving up until then. My engine failed. If I had entered an busy highway I would have most likely caused a Major Accident and been killed and/or killed others. It happened around 5:00 A.M. in the dark which was bad enough as I was alone on my way to work. I had it towed to the Dealership and they replaced the knock sensor and assured me that the car was perfectly safe now. But on Dec. 1,2022 I was driving on a 35 mph road and the car...

Jan '22 - Reported check engine light had begun to turn off and back on when gas tank was low. Feb '22 At 19k miles catalytic convertor reported failed for code (P0420), 3 way catalyst, upper and lower gaskets, and manifold all needed to be replaced - took 4 days Aug'23 called to request service for check engine light because it was coming off and on over periods of time. Scheduled for Sep'23 Sep '23 service reports new cat quoted for code P0420, I was not verbally informed by service advisor. 16 Nov '23 driving home and car starts to shake and is slow to accelerate, check engine light started to flash, car enters limp mode, could not drive safely on highway and waited hours for a tow. Codes P0420(cat convertor), P1326 (Knock sensor) 25 Nov '23 picked up car, had catalytic convertor, manifold gasket, knock sensor replaced. Drove 27...

The oil is burning up so fast. Every oil change that is within the mileage limits they tell me my car is bone dry. If the oil in my car runs out my car engine can blow up or it can stop working. The only way it has been reproduced is that every oil change for 2 years now they have told me it’s bone dry. It has not been inspected by manufacturer. They told me it would cost about $400 for them to even just check it out. There are no warning lights at all.

While driving down the interstate to go back to my college, I noticed a cloud of white smoke coming out of my exhaust. Seconds later, I no longer could accelerate and white smoke was also coming out of the engine. There were no lights on my dash at this point or at any point before this day. I quickly tried to get off of the road when I noticed my car was no longer going. I managed to get to the side of the road where finally my engine and oil light came on. I waited 2.5 hours for a tow truck on the side of the interstate, where I was barely off of the road. It was taken to the dealership where I bought it (since the car only has 32k miles on it) for a "hole in the engine" which is what I was originally told by the...