2016 Hyundai Tucson: engine overheating

Filed Mar 23, 2026 · Electrical, Engine · FL

I am writing regarding the diagnosis provided for my vehicle [XXX] . I was informed today that the engine failure is being attributed to a "water hose failure" rather than the engine defects covered under the active safety recall/settlement regarding Connecting Rod Bearing failure. As there were no coolant leaks before or after the vehicle was towed to your dealership. I am formally requesting a re-evaluation and more detailed evidence. Given the known history of these engines seizing, I need to ensure this diagnosis is absolutely correct and not a symptom of the internal defect. I request the following information be provided immediately: 1. Evidence of Overheating: Did the vehicle store any specific "overheating" codes in the ECU prior to the engine shutting off? 2. Oil Pan Inspection: Has the oil pan been removed to inspect for metal shavings or debris? If the connecting rod bearings failed (the recall issue), there will likely be metallic debris in the oil, regardless of the condition of the water hose. 3. Bearing Clearance Test (BCT): Was the mandated Bearing Clearance Test performed? If not, I request that this be done, or that a teardown be performed to inspect the rod bearings specifically. 4. Causal Link: Can you provide evidence that the water hose failed causing the engine to seize, rather than the engine seizing causing a pressure spike that damaged the cooling system? I have no transportation to work and school. They would not honor a loaner. This has happened since Decemeber of 2025. I await your written response with the requested photos and technical data. My case # with Hyundai Consumer Affairs # XXX Please provide: All relevant photographs Freeze-frame and ECU data Technician diagnostic notes Results of oil pan inspection and/or BCT (if performed) Any physical evidence supporting the stated cause of failure I request this information be sent in writing at your earliest convenience. Thank you for your attention to INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U

Filed Jan 7, 2026 · Engine · 90,000 miles · CA

The contact owns a 2016 Hyundai Tucson. The contact stated that after coming to a complete stop, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The vehicle went into LIMP Mode. In addition, the vehicle failed to accelerate above 30 MPH. No warning light was illuminated. The vehicle was taken to several dealers. The contact was informed that the unknown hoses and the dipstick melted inside due to the engine overheating. The contact stated that the catalytic converter was replaced; however, the failure persisted. The contact stated that the catalytic converter had been replaced three times since the first failure. The contact stated that on a separate occasion, the engine was consuming an excessive amount of engine oil. The contact was adding engine oil every two weeks. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The failure was a recurring failure, and the contact drove the vehicle intermittently due to the safety concerns. The manufacturer was not made aware of the failure. The failure mileage was approximately 90,000.

Filed Sep 3, 2025 · Engine · FL

In April of 2024, I bought my 2016 Hyundai Tucson for a certified dealership in FL. Within 2 months the car began shaking and I had to take it to have spark plugs replaced which cost several hundred dollars. Shortly after that in November 2024, I was driving on the highway to school when I got an ‘engine overheating alert’ and immediately pulled over to turn off the car. After waiting for a few minutes to let it cool down and noticing that the coolant was very low, I added some more coolant in and tried to restart the car, but it would not turn on. I had to get a tow truck to a repair shop to which they informed me that the headgasket had blown and it would cost about $12,000 to replace it. Ever since, my car has been towed to multiple Hyundai dealerships and repair shops when I sought after answers as to what happened and one told me that the engine was known for eating oil too quickly, causing it to blow. I bought the car only for $16,000 and would have to pay about the same amount just to fix the engine and reading multiple reports online have shown from other others having the same exact issues with no answers and being stuck. We have had it sitting in our garage ever since and still do not know what to do.

Filed Aug 5, 2024 · NY

• temperature regulator stopped working •couldn’t use A/C in very hot months, couldn’t use heat in very cold months putting risk of freezing and overheating • independent service •No •No

Filed Jan 8, 2024 · Engine · 131,000 miles · GA

The contact owns a 2016 Hyundai Tucson. The contact stated while driving 65 MPH, the engine overheated. The check engine warning light illuminated. The contact drove the vehicle to the shoulder of the road. The contact opened the hood and became aware that the coolant cap had detached and there was coolant covering the engine. The contact stated that the engine failure had occurred previously, and the failure was persistent. The vehicle was towed to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 131,000.

Filed Sep 4, 2023 · Electrical, Engine · TX

I bought a used 2016 Hyundai Tucson locally. Had the car 3 days, & both rear window actuators had to be replaced. Had the car a week, oil pump/pan seal failed. Then the rear seal fail. Then the boot on the right CV joint failed. The aAC started blowing hot on the passenger side, while cold on the driver side, but I DON’T have dual controls for the temperature & it’s full. Bluetooth randomly connects/disconnects. Gas gauge is inaccurate says 40 miles left & then suddenly your light is on & it says you’ve 20. REPEATEDLY replaced my brake light bulbs/front turn signal bulbs, several times within a few months of each other, often on the same side. Having my phone plugged into the charging ports, the phone often overheats to the point of being too hot to touch. Even placed out of the sun’s rays, & shaded. Must pull front passenger door 2x externally before it will open. RR passenger door you can pull all day/push from inside /outside, doesn’t matter, WON’T OPEN.The car is equipped with a CVT, which allows you to shift manually if needed. Then the transmission refused to shift automatically. No codes would show. Today car died on me in the middle of the road, while I was turning, check engine is on, & car refuses to start. I was almost hit by cross traffic from both directions. A few people drove around me, before two very nice young men pushed my car out of the middle of the road onto the shoulder of a county road, on a holiday weekend. If not for a Good Samaritan, I’d have been walking 6 miles home in the dark. I’m almost 50, & a woman, & diabetic. The car has plenty of oil & coolant. Tried putting the car in neutral, still won’t start. Air filter is clean. Battery is good. Says it has gas; 40 miles til empty. Car tries to turn over but won’t catch. Tachometer will barely register to the line above zero, & even giving it gas makes NO difference. Have been told it is the timing & transmission. Dealer won’t honor extended warranty. Car has “just” passed Hyundai warranty.

Filed Mar 10, 2023 · Engine · MA

Engine light came on Feb 26th car started shaking got it towed to the dealership morning of Feb 27th Was told: Foiled oil returning ring caused oil consumption, burning oil overheated valves and caused cylinder wall damage and 4 valves to burn holes in them leading to low engine compression and loss of power. Engine needs to be replaced to fully correct the issue. Hyundai is refusing to cover the cost because I am 2nd owner, even though my car has under 100,000 miles on it.

Filed Jun 6, 2022 · Transmission · VA

Transmission can lurch forward or hesitate, shudder when accelerating from a stop. More problematic is the extreme vibration/shuddering of the car when in stop and go traffic. It is so severe passengers are actually thrusting back and forth in their seats. First occurrence was at 23,000 miles when a warning light came on saying, "transmission running high, pull over while driving in traffic." At the time I was driving in moderately heavy city traffic for about 20 minutes. Hyundai service reported they could not duplicate the problem, and no codes found in any system, so no repairs performed. Was informed service mechanic that this can happen in extended traffic. However, I had not been in extended traffic. I continued to experience other issues as noted above and when complained about them was told there was nothing wrong with the car, it just had some quirks with the transmission, nothing that needed repair. Recently my driving has changed from city to interstate driving and starting about 5,000 miles ago, the severe shuddering/vibrating happens when traffic is tied up on interstates. The car has not been overheated by hot weather or extended driving as suggested by the service center. When I took it back in for servicing I was informed there was a "dry and wet" type of transmission in the 2016 Tucson's, and I had the dry one which is problematic. Again, the mechanics were unable to duplicate the problem, and said there was nothing they could do to fix the car as it was inherent in this transmission. They suggested I contact Hyundai and ask for the transmission to be replaced as it was still under warranty. Current mileage is 39,000. I have contacted hyundai but they insist, I must take it back to the dealer so they can "duplicate the problem and repair it. It has been and continues to be very frustrating trying to deal with hyundai. I do not feel safe driving long distances in the car and consider it to be a safety concern. Please advise. Thank you, Ellen

Filed Feb 17, 2022 · Engine · NC · fire

On Friday, September 11, 2022, I had just returned from running errands. I parked the car, which had no warning lights on whatsoever, and exited the vehicle. A few seconds later, smoke started streaming out from under the hood. I popped the hood but did not open it, and started toward the house to get some water, thinking that something was overheated. Before I had taken ten steps, flames were shooting out from the hood. I called 911, but before the fire department arrived, part of my house also caught fire. It has been inspected by the fire marshal and my insurance company.

Filed Jan 11, 2022 · Engine · IL

The Engine block overheated and seized causing a connecting rod to break and eject from the bottom of the vehicle. I was driving down a highway when this happened with no indication or check light of the problem on the dashboard. I heard a snapping noise which was the connecting rod breaking and then ejecting out of the engine and then the engine smoked, and the car immediately lost acceleration on a packed highway and had I not responded quickly - I would have caused a serious accident. I had the car towed to a repair shop initially and they diagnosed it as engine seizure with massive engine failure and they told me to send it to Hyundai dealer in Algonquin IL, which was where they confirmed the diagnosis - it seemed suspicious to me as I have had all maintenance done with Hyundai besides my tires. They told me the engine overheated and seized which caused the connecting rods to snap, I had visited my dealership recently the prior month for an oil change and they did not indicate any major problems with my vehicle. The car had to be towed to my local dealership McGrath City Hyundai as I have no way to drive to the other dealership as it was so far way. I'm waiting now almost half a year for an engine replacement and no word from the manufacturer or dealership on this matter.

Filed Sep 20, 2021 · Engine, Transmission · TX

The vehicle issue began with needing an engine check light. Searched for a recall but there wasn't any engine recalls online for my VIN number. Took the car to the dealer for a recall and they did the recall on some electrical wire that was separate from the engine issue but they just overlooked the engine check light on my dashboard and made no mention of it. They actually bypassed it and so I thought maybe they fixed the issue since the light isn't present anymore. However the engine light came and the problem developed into a transmission failure. Upon pressing the gas pedal, the vehicle wouldn't run over 30 miles per hour and could only go up to 4 rpms.. I took the car to the mechanic and he replaced the transmission and he said that the root cause was a result of a burnt gasket. So we had that replace also.. After spending $5000 in repairs, the motor or the engine completely overheated and now the car is just a potato. Another issue is the doors on my car and not opening anymore. I have to manually ply them open by pulling on some mechanical wiring inside the door. Why do I have to pay for bad engineering? This is an obvious risk.

Filed Apr 6, 2021 · Transmission · 102,000 miles · NV

Tl* the contact owns a 2016 hyundai tucson. The contact stated that while driving at various speeds the vehicle would shuddered, shook, and vibrated while attempting to accelerate. The instrument panel showed that the transmission had overheated. The vehicle was taken to the local dealer carson city hyundai located at 3659 s carson st, carson city, nv 89701 who diagnosed that the dual clutch assembly was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was not yet notified of the failure. The contact indicated that the dual clutch assembly was previously replaced under the federal safety agency campaign number: 16v628000 (power train) however, the failure occurred. The failure mileage was 102,000.