Home · 2020 Hyundai Tucson Fuel Cell · Complaints

What 173 owners told NHTSA about the 2020 Hyundai Tucson Fuel Cell

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (173)Crash / fire / injury (7)Engine (69)Brakes (43)Electrical system (19)Driver assistance (12)Transmission & drivetrain (9)Airbags (7)Backup camera & sensors (7)Lane Departure (6)Fuel system (4)Lights (4)

Newest first · 173 complaints · page 2 of 7

Jan 7, 2026Engine & cooling

The contact owns a 2020 Hyundai Tucson. The contact stated that the engine was consuming an excessive amount of engine oil. The vehicle was taken to the dealer, and the oil level was topped off. The dealer requested that the contact return every 1,000 miles for inspection. The failure persisted, and the vehicle was returned to the dealer every 1,000 miles. The check engine warning light was illuminated. The vehicle was taken back to the dealer for an inspection, and the dealer discovered that the catalytic converter was defective and needed to be replaced. The vehicle was taken to an independent mechanic for a second opinion, and the contact was informed that the engine had failed due to a defect in one of the engine cylinders. The dealer was informed of the findings by the independent mechanic, and an appointment was scheduled to inspect the vehicle. The vehicle was not repaired. The failure mileage was unknown.

NHTSA ODI 11709340

Dec 17, 2025Suspension

The rear self leveling shocks are worn out. The car bounces terribly and control is an issue. I have confirmation from the dealer that the shocks need to be replaced. There were no warnings that the parts were broken.

NHTSA ODI 11705626

Nov 30, 2025Fuel system

Spark plugs have been replaced twice- fuel injectors cleaned and now I have another misfire in cylinder 3 and have to replace all four fuel injectors.

NHTSA ODI 11702153

Nov 23, 2025Engine

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

NHTSA ODI 11701048

Nov 18, 2025Electrical systemEngine

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.

NHTSA ODI 11700015

Nov 18, 2025Engine

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.

NHTSA ODI 11700205

Nov 14, 2025EngineFire

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.

NHTSA ODI 11699488

Nov 13, 2025Engine

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 had to add 2 quarts of oil just to have it register on the dip stick. The excessive oil burning is a known issue that Hyundai fights tooth and nail to avoid correcting. But to not have a warning indicator that the oil is at a dangerously low level is reckless on Hyundai's part. The engine could have seized up, thrown a rod, or any number of consequences. I had my oil replaced by Hyundai in May as part 1 of their oil consumption test. My car passed their 1000-mile test and 4,000 miles later I was in dangerously low oil territory again. Thankfully, I knew what to look for this time. Cars should not consume oil at this rapid of a rate but even if they do drivers should be notified about low oil levels via car sensors to keep them and their passengers safe.

NHTSA ODI 11699155

Nov 13, 2025Electrical systemSeat beltsService Brakes, Hydraulic; Autohold Brake System/brake Hold

The contact owns a 2020 Hyundai Tucson. The contact stated that upon starting the vehicle, the Brake Auto Hold was engaged unintendedly and failed to disengage upon pressing the button, which required the contact to turn off, restart, and drive the vehicle for some time for the Brake Auto Hold to disengage. The contact stated that the failure had been recurring. The contact stated that the infotainment system was inoperable. Additionally, the passenger's side rear seat belt failed to buckle as intended, and the passenger's side rear door handle fractured while the contact was opening the door. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 102,000.

NHTSA ODI 11699240

Nov 5, 2025Engine

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.

NHTSA ODI 11697791

Nov 4, 2025Engine

High oil consumption leading to costly repairs outside of warranty.

NHTSA ODI 11697382

Oct 21, 2025Engine

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.

NHTSA ODI 11694678

Oct 16, 2025Engine

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.

NHTSA ODI 11693789

Oct 16, 2025Engine

Engine oil excessive consumption/burning oil

NHTSA ODI 11693922

Oct 16, 2025Engine

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.

NHTSA ODI 11693977

Oct 7, 2025Engine

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

NHTSA ODI 11691974

Oct 2, 2025Engine

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)

NHTSA ODI 11690921

Sep 28, 2025Engine

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

NHTSA ODI 11690158

Sep 16, 2025Lane DepartureDriver assistance

Was told by dealership that forward camera assist is not functioning, but could not tell me why it failed all of a sudden. No accidents. $1586 to repair because no longer under warranty. Vehicle is only 5 years old.

NHTSA ODI 11687578

Sep 13, 2025Engine

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

NHTSA ODI 11687072

Sep 13, 2025

When driving my check engine light started to blink and my car would not accelerate. I made it home and plugged in a diagnostic reader and got the code P1326 glow relay short circuit. My car along with my friends 2021 Hyundai Tucson both have this same issue. There needs to be a recall for these years. There is a recall out for this specific problem in sonatas and Tucsons and need to cover these years as well.

NHTSA ODI 11687119

Sep 10, 2025Engine

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

NHTSA ODI 11686425

Aug 25, 2025Engine

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

NHTSA ODI 11682794

Aug 25, 2025Engine

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 MPH and it jumps forward. I have now been given back a car that is unsafe to drive and put my family and 2 times. Clearly the dealership is not fixing the actual problem at hand and continues to put my family and i’s safety at risk. Each time the car has broken down I have been on the pa turnpike and been put in an extremely dangerous situation.

NHTSA ODI 11682982

Aug 13, 2025Lights

The contact owns a 2020 Hyundai Tucson. The contact stated that the "Check Brake Light" message was displayed on the instrument panel, and the screen indicated that the rear brake light bulb was defective. The vehicle was initially taken to an independent mechanic where the brake light bulb was replaced; however, the failure recurred. The vehicle was then taken to a dealer where the contact was informed that the brake light bulb had failed because the bulb was an aftermarket part. The contact had the brake light bulb replaced with an authorized Hyundai part; however, that part also failed soon after the bulb was replaced. The manufacturer was notified of the failure and referred the contact back to the dealer for assistance. The vehicle was taken back to the dealer but was not yet repaired. The failure mileage was approximately 40,000.

NHTSA ODI 11680400

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Working with the data? Download all 173 complaints as CSV · fetched from NHTSA July 25, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2020 Hyundai Tucson Fuel Cell verdict →