Excessive oil consumption NM, replaced catalytic converter twice. Losing power again. 122450 miles. Trans mission slipping, not shifting into higher gear. Gas mpg down to 19mpg. Unsafe on highway, loses speed and revs too high

- Topeka, KS, USA

Entering on the 65 mph interstate. Tucson would not accelerate past 60 mph. When it reached 60 mph it rapidly lost power and speed. Air conditioner was on also. When accelerating while at a stop light or making a turn vehicle hesitates to accelerate. All occurrences of this happening A/c was on.

- Apex, NC, USA

There are four safety concerns I have with the 2016 Hyundai Tuscon: 1.) The Check Oil light failed to illuminate indicating the need for more oil. 2.) The excessive oil consumption may have caused my catalytic converter to misfire and melt. 3.) The Check Engine light failed to illuminate when my catalytic converter misfired and melted. 4.) The Knock Sensor (if it is bad), which is installed on my vehicle, could fail and not warn me about any engine problems. On 7/3/23, my vehicle was having a difficult time accelerating up a mountain. My brother and I also heard a rattling noise, so my brother drove to a safe place. I had my vehicle towed to a local auto service garage, where I was told the catalytic converter melted due to misfiring and that I needed to replace it. On 7/5/23, I had my vehicle towed to the closest Hyundai Dealership, where they confirmed that the vehicle's catalytic converter was melted due to misfiring. After researching the causes catalytic converters misfiring, I read several complaints about the said vehicle's oil consumption and poor acceleration. I suspect there might be a connection to the catalytic converter misfiring and melting. Incidentally, I have had two other incidents where my vehicle lacked acceleration and started shaking. One occurred on 12/28/22, while I was entering an intersection. The other happened on 4/1/23, while I was attempting to pass another vehicle. All three incidents could've ended tragically. The Check Engine light did illuminate during two of the incidents, but not the incident that occurred on 7/3/23. Additionally, the catalytic converter was previously tested on 12/31/22 and it didn't have any bad codes. Sparkplugs were also replaced on 12/31/22, and a 3-Step Fuel System Cleaning was done on 6/12/23. The Check Oil light only illuminated once since I have owned the vehicle, but failed to illuminate when my oil was getting low in between oil changes. My SUV is still in service waiting for a Catalytic Converter.

- Rocklin, CA, USA

The engine of my car is consuming several quarts of oil between oil changes. I have read that this is a common problem with some models of Hyundia vehicles. I have also read that this defect has led to engine failures and possibly fires.

- Lenoir City, TN, USA

Car is using more than one quart of oil per 1,000 miles. Car is not leaking oil and oil changes are done at the dealership every 3500 miles. Having to check oil levels constantly and keep quarts of oil in car to fill in case it is low. Hyundai St augustine dealership says there is not a problem.

- St Augustine, FL, USA

Engine is consuming oil and we are waiting for it to totally fail. We have a long list of things. These are notes from the end of the process when we gave up. I responded after the fourth consumption test on 11/28/2022 asking for them to re-open my case and have not heard from them so I called on 12/9/2022 to speak to my case manager. We started this journey with 118,000 miles and now we have close to 164,000. Went from 1qt every 1000 miles to 2qt-??s every 1000 miles. Had to get another case manager to leave a message for my case manager to call me back. I don-??t even know if they re opened my case. Hyundai has refused to admit the have a large issue with their GDI motors. They should not be consuming oil as much as they are. Only Theta motors are being covered in Non Turbo cars. This is my second vehicle currently owned with a gamma turbo motor. This one is waiting to fail and the other one has failed.

- Blanchard , OK, USA

The contact owns a 2016 Hyundai Tucson. The contact stated that the vehicle was serviced under warranty and the Knock Sensor Detection System (KSDS) was replaced; however, after the repair, while driving 62 MPH, the check engine warning light illuminated, and the vehicle went into LIMP Mode. The contact stated that he drove the vehicle back to the dealer and was informed by the mechanic that there would be a cost for the repair. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 118,000.

- Moscow, ID, USA

I purchased a 2016 Hyundai Tuscon new in April 2017. From the beginning I felt there were issues with this vehicle but was also told that everything was fine. In 2019 the car stopped getting power and I was unable to go over 60mph on the highway. Hyundai said it had run out of oil but I had always gotten my oil changes from Hyundai directly. Also- no alert that my oil was low every came on. They replaced the engine or parts of it but I was still required to pay about $3,000 at the time. In Jan. of this year I realized that the car was not running as it should. Hyundai in Milford, CT had me pay for the oil change and also pay for the oil consumption test. On Feb. 20th I was approved for a new engine. I have been given multiple dates of when I my car would be repaired with the last date being May 17, 2023. I have not heard anything from Hyundai. I submitted a complaint with Hyundai corporate (21515374) and they have done nothing except tell me that they are still waiting for an answer as well. I am afraid to drive my vehicle long distances and do not know what kind of service I should get while waiting for a new engine. I am now carrying oil around in my vehicle but think that this is horrible wrong. I am still paying almost $600 a month for a vehicle that I am afraid to drive and I have not received any answers from anyone regarding when my repairs will be done or even getting a rental while I wait. After reading hundreds of other complaints this seems to be an issue with Hyundai and everyone says the same thing about the oil warning light not coming on at all. I purchased my vehicle from Hyundai in Milford, CT.

- Bridgeport, CT, USA

Complete Engine failure under 100k miles. Electrical issues with toggle switches

- Garden Grovegarden Grove, CA, USA

Similar to other owners my car has been burning oil at a higher-than-normal rate. Because of this, there has been a carbon build-up causing my engine to start misfiring and stop working while driving on the interstate.

- Lakeland, FL, USA

Was driving on the highway and my car wouldn't go above 45mph, then check engine light and oil pressure lights came on. Pulled over on the shoulder and checked the oil and it was low oil by about 2 quarts. I checked the oil about 3 weeks prior and had no issues with oil loss and had no lights ever come on the dash prior. Had to get towed home because the car was sputtering and would accelerate. The car is inoperable now and needs engine repair.

- Johnsonville, NY, USA

My engine has 98,000 miles and is burning two quarts of oil every 1000 miles. I have no visible oil leaks.

- Prattville, AL, USA

My car was having issues with the engine making a rattling sound and having difficulty accelerating. About a week after the symptoms came up, my car died on the side of the road. I am so lucky I was in a neighborhood and not on the freeway. No lights came on at all until 10-20 seconds before it died. I was able to get my car to the dealership and was told I'd need a new engine. Although I bought it used, I've only had this car for four months. I'm hoping Hyundai places the 2016 Tucson under recall as many others seems to have similar issues.

- Buffalo, MN, USA

The vehicle had been well maintained. Have receipts for most all services. At around 90,000 miles, the car started "burning oil" and needed frequent top offs. At 108,000 miles, I have car serviced and started a road trip. In less than 40 miles, it started to shudder and miss fire on the interstate. Causing loss of power and control. Fortunately, I was able to pull over safely off interstate 40. I did not drive further and had car towed back to town. At dealership, I was told "engine failure" due to 2nd cylinder loss of compression, and new engine is only option. I was denied any service under warranty due to being over 100,000 miles. The dealership will not work with me on variance or goodwill gesture. I have seen in online forums that this is happening to other owners. The vehicle was well maintained and never gave any hint of the pending failure. I am filing this as formal complaint and safety hazard with this vehicle.

- Albuquerque, NM, USA

I have 3 issues. #1. The transmission fails to shift only at certain times resulting in high RPM's on level road. #2. Engine has knocking noise at idle after having the engine knock sensor installed. #3 right, rear passenger door will not open from inside, or outside in spite of inside latch being manually opened or attempting to open with key fob activation.

- Bellingham, WA, USA

The engine is consuming more than 1 quart of oil every 1000 miles. This began around 100000 miles at 1 quart per thousand miles and has since progressed to 1 quart every 500--800 miles. I found this problem when my oil pressure light came on as I was going around a curve. I checked my oil level and it was not visible on the stick. My engine was 3 quarts low 3000 miles since the last oil change. This has been going on since April of 2021. My steering column makes a significant rattling noise and jiggles up and down when going over bumps. This has been going on since about the 80000 mile mark which was around April 2020. My local shop confirmed there was something likely worn out and needing replacement, perhaps the entire steering column.

- Pelham, AL, USA

My car has been consuming oil at a higher than normal rate. The engine light came on and they told me it was a PCV valve. My oil smells. I put in 2-4 quarts in-between a 3,000 mile oil change. Even though the recommended oil change for my engine is 4500 miles. So with a standard 5 quart oil change plus 3-5 more quarts, my car is consuming 7-10 quarts every 3,000 miles. This is not normal. I have started the Oil Consumption Test with Hyundai in NW Arkansas at Crain Hyundai and was told my powertrain warranty is now up to 120,000 mile warranty. I did not know this Hyindai Corp. never informed me. Also, I have paid out of pocket for every new oil change I've needed for the last 20,000 miles and oil in-between. Yesterday, while I saw the dipstick was under the L the tech told me it was within normal range. How is this possible? My car has gone into Limp Mode a few times because of the oil problem.

- Bella Vista, AR, USA

The contact owns a 2016 Hyundai Tucson. The contact stated that the vehicle was taken to the dealer due to excessive oil leaking. The contact stated that the vehicle was diagnosed with an engine failure and the contact was informed that the engine needed to be rebuilt. The vehicle was repaired under warranty however, the failure recurred. The vehicle was not diagnosed after the recent failure. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 99,000.

- Bowie, MD, USA

I have a 2016 Hyundai Tucson and under warrantee they replaced the transmission. But it has never been right. Hyundai has had a multitude of problems with this transmission and it should have been recalled, but was not! Now it has problems again and I've asked Hyundai corporate for help but all they say is its up to the goodwill (translation generosity) of the Hyundai dealer in Charlotte. So I am screwed. I need help contacting the government agency that can do something to help me.

- Charlotte, NC, USA

The vehicle is burning oil quickly. I have always gotten the oil changed on time. I just reached 89,000 miles and the vehicle has begun shaking when I accelerate and the check engine light has been flashing. I checked the oil and it is at the half way line between Full and Low - even though I just had it changed 3 weeks and less than 1,000 miles ago. I took it to the dealership, they said they do not recognize a problem with oil consumption. I told them my check engine light was flashing and it felt like it was going to stall when accelerating. The dealership said they used to do diagnostic testing, but don't anymore. They said they would look into, but I would have to pay $135 for the diagnostic testing.

- Rapid City, SD, USA