When you accelerate the vehicle the engine revs up to 5K to 6K and the car appears to being neutral. This occurs every tim I try to accelerate. The vehicle does not accelerate. Very dangerous when I try to accelerate to change lanes. The vehicle does no accelerate.

- The Villages, FL, USA

As I was driving, the car began to slow down so I pulled over and the engine turned off. It wouldn't turn back on. Lights, radio, heat-all working but the engine doesn't start. We have it towed to the dealer and they say the engine seized up on us. It will be replaced because it is under warranty but it will take 1-2 months for a new one to come in. Apparently Hyundai is aware of the issue and is redesigning the engines to fix the problem. How many times does this have to happen before they are recalled" what if you are on the highway and your car shuts off" no prior warning, nothing. They tried to give us the same bologna about engine maintenance and oil changes. This is a serious design flaw.

- Fultonville, NY, USA

In some cases when the engine is hot turned off and is restarted in a short period of time (1/2 hr.), a ticking lifter (noisy lifter) can be heard. The oil level and viscosity is correct. Engine is the 2.0L (nu gdi 2.0L DOHC). Always checking the oil in the engine after the failures of Hyundai/Kia engines.

- Santa Isabel, PR, USA

Vehicle was stationery. In some cases is difficult to start the engine because the brake pedal is very hard (almost rock solid), driver must press harder the brake pedal to make the vehicle start (smart key procedure). If vehicle doesn't detect the driver's foot in pressing the brake pedal, the engine will not start and ignition switch will go to acc or on position. Events occurred in 01/24/2019 and dealership (called 01/25/2019) wants to inspect the vehicle in February 15,2019 because they are full until that date.

- Santa Isabel, PR, USA

This car worked fine until it died on the freeway at 60 miles per hour one evening. I was able to restart it and mad it 3 more miles to home. Next day it would not start and was towed to dealer and dealer says the engine is bad and oil is sludgy due to lack of maintenance and it is not covered under warranty. Car has 30,000 miles and has had 4 oil changes and was due for next oil change.

- Richmond, TX, USA

The contact owns a 2017 Hyundai Tucson. While driving 60 mph, the vehicle would downshift into low gear on its own. Also, when attempting to drive the vehicle, it failed to start. There were no warning indicators illuminated. The vehicle was taken to sport durst automotive (4511 durham-chapel hill blvd, durham, nc 27707, (877) 262-3223) to be diagnosed, but a failure code could not be found. The dealer stated that the vehicle was performing as designed. The vehicle was not repaired. The contact stated that the failure recurred three times, but the dealer could not duplicate the failures. The manufacturer was notified and provided case number: 13622118. The approximate failure mileage was 805.

- Pittsboro, NC, USA

While driving I have noticed that when I begin to accelerate after a complete stop my car jerks forward and doesn't catch. It's almost as if the vehicle stalls before moving forward, this happens when moving forward or reversing from a complete stop. I haven't been able to get a response to the issue from the dealership though I've let them know there is an issue multiple times over the past 3 months.

- Antelope, CA, USA

Dual clutch transmission (dct) / 1.6T engine start from stop acceleration stuttering, stalling occurs from initial take offs, while idling in stop/go traffic creates potentially dangerous drive/passenger situation in traffic especially when crossing traffic patterns and lane merging/passing. Issue has been brought to the attention of Hyundai corporate and two local Hyundai dealerships. Both parties indicate lack of knowledge on how to properly drive dct transmission and provided both video and written training packages. Both training mechanisms failed to resolve the issue. Supposed software updates by the leasing dealership failed to resolve the issue also. Issue is still active and latest visit to dealership failed to find any issues with no repairs or software updates taking place. Senior technician indicated Hyundai leadership at corporate are acutely aware of issue but choosing to not act accordingly/appropriately.

- Parker, CO, USA

My vehicle seems to stall/hesitate when accelerating from a full stop. I have the 1.6 turbo automatic transmission which I understand has a software glitch that can delay acceleration from when the car is stationary. This occurs quite often when proceeding when light turns green--dangerous when making a left turn & in a precarious position multiple times with oncoming traffic. Brought car to dealer w/complaint but they did not make any adjustments or corrections. Told me to "live with it." Unacceptable! please help.

- Plainview, NY, USA

My mother in law bought a 2017 Hyundai tuscon and is experiencing the same issue with the dual clutch system that required a 41,000 unit recall for the 2016 tuscon model. She has brought it into the dealer multiple times describing the same issue and showing car forums with similar issues and without a software fix. I'd like to have the NHTSA have a look into this issue if possible please and see about another recall for the same issue in the new model year as it has clearly not been fixed. I'm happy to provide more information about the issue.

- Los Angeles, CA, USA

I have owned my 2017 Hyundai Tucson since 10/20/17. In the last year I have had it at the dealership 3X for the check engine light. Twice my vehicle had performance issues while entering the highway and acceleration. It is life endangering. When accelerating onto the highway, the engine loses speed. The RPM gauge starts going wacky, off the charts. It will rev to 5 RPM back down to 3 RPM and back & forth. When the foot is on the gas peddle trying to increase to highway speed, the engine will go to 45 mph. When one a highway where the speed limit is 70 mph, it becomes life threatening. When I finally reached a speed of 70, it would go for a short time and then decrease to 50 mph. Very scary. Twice it was in service for the same performance issue. The 2nd time they replaced boost sensor range. It works ok now. However, the shifting of the transmission is hard and seems to shift improperly. It too is tied to the acceleration. Hyundai that is the natural performance on the engine & transmission. The last check engine was an alternator failure. I have owned 3 Hyundai's. I have helped my daughter buy her 2 Hyundai's. my mother as well. I have never seen these kind of issues. Also the natural hydraulic closing on the back door is a real safety hazard. One day the door started closing while my body was half inside. There should be a sensor to detect when there is an object in the way. That too is caused for alarm in safety. These 2 issues that I have written about can & will cause death.

- Port St Lucie, FL, USA

Engine bogs down and looses power when accelerating from a stop. Random. After several seconds it recovers and is fine for a random amount of time. It is dangerous as some of the times I have been trying to merge into heavy traffic and it bogged down. Service department says Hyundai knows of the issue. Many complaints but no fix.

- Chugiak, AK, USA

Vehicle frequently, intermittently, stalls during take off from a stop. When accelerating from a stop sign or traffic light vehicle will simply roll as if it is freely rolling in neutral but is not receiving any power or acceleration from the engine for approximately 3 to 5 seconds before engine/drivetrain engauges and vehicle accelerates. This creates an extreme safety hazard when you have the vehicle in an intersection and accelerate to make a left turn in a gap in traffic and end stuck in the intersection or in front of an oncoming vehicle because the vehicle is only rolling and not accelerating. This issue has been reported to Hyundai usa corporate who has chosen not offer any remedy and has it stated to me this is a "characteristic of my vehicle.". Hyundai usa has continually referred me back to the dealership, who does not have a fix for this issue. Hyundai usa has even place the blame for this issue on the dealership. However the issue here is that Hyundai usa engineers have not admitted to having this problem or created a fix to this problem to roll out to the dealership to allow them to remedy this problem. This identical issue has been reported and issued as a recall in prior models of this vehicle, yet Hyundai refuses to do anything on this model

- South Bloomfield, OH, USA

The stupid car lurches forward when trying to accelerate and quits in the flow of traffic and intersection. It is a piece of garbage as it endangers everyone in the vehicle. A 2 to 3 second pause with the accelerator pushed to the floor it does nothing and the idiots at edwards auto/ Hyundai don't care all vehicles should be recalled and removed from service until they fire the moron programmers and fix the computer, software, brake and accelerator sensors. Fact is the car's computer isn't fast enough to process the sensors. It is a danger to myself and if iget hurt the federal government wont have enough money to pay me for failing to take all tuscons off the road and put the board of directors in jail for public endangerment.

- Valley, NE, USA

I am experiencing a problem with the vehicle's acceleration from a stop which is worsening over time. I bought the vehicle new in September 2017. I routinely experience a severe lag in acceleration from a stop, causing jerky movements and sometimes unintended acceleration. I do not feel as if the vehicle is safe to drive on a daily basis. I have had the car looked at by Hyundai technicians in my local dealership's service department. They have reported that there are no issues they can identify and the car is operating as it was built to. I have expressed my concerns about the vehicle's safety and they have told me to contact Hyundai's Consumer Affairs department. I have initiated a ticket with Consumer Affairs.

- Winston-Salem, NC, USA

The 2017 Tucson sport has the 1.6 turbo with the dual clutch transmission. When pulling out into traffic, one never knows if the car will respond to the gas pedal and accelerate or just stumble along. This is a known problem, and there is a recall or similar for the 2016 with NHTSA. The dealership (kearny mesa Hyundai, san diego) tells us that "they all do that" when we took it in for safety concerns and repair. Any subsequent requests for repair were met with "it will cost you 150 dollars to check it out if it's the same situation as before with no solution". this car is a danger to us and others on the road. It also tends to go into some sort of leaf blower mode sometimes when you hit the brakes, where the revs soar but it doesn't act like it downshifted. This is not a mixup in brake/gas pedal usage, like the unintended acceleration problems weve all read about with other brands. The dct has a mind of it's own and is a hazard on the road. The problems are when the vehicle is in motion, and it can happen anywhere, at random, highway, freeway, pulling out of a driveway... anywhere. Please help get these dangerous cars off the road. Not sure what documentation you want, but the car is under warranty, and was bought in Aug 2017. Cars with this engine/trans are still for sale in the showrooms nationwide, a known danger to all concerned. The dealership service mgr has told us how there are a lot of unhappy customers out there with 1.6 turbo/dct drivetrains, and yet they are selling more by the day. Yet there is no support other than the one time attempt and "they all do that". help.

- San Diego, CA, USA

Upon suppressing the accelerator pedal vehicle fails to accelerate from standstill creating a 2-3 "pause" that is highly dangerous especially when entering traffic, freeways, etc. This is clearly a problem that is documented however no recall has been granted for this model. It doesn't matter what road: City street or a highway. The vehicle hesitates and does not move when you need to! when the powertrain does finally take hold, the engine revs high and pulses forward causing yet another disturbing and potentially dangerous condition for driver and others on the road. This is clearly a mechanical and/or software glitch that will eventually result in accidents and bodily harm. Note this condition is sometimes intermittent therefore creating a false sense of driver control since you never know when you will face lack of proper acceleration. At first I suspected it was just the 4-cyl engine being small, but after reading about other people having exactly same experience.

- Newark, NJ, USA

While vehicle is being driven, in motion on a street and needing to accelerate, especially when making a turn, often the accelerator pedal will seem to stall or falter when being depressed, causing the vehicle to slow, then the pedal continues downward and the vehicle lurches forward. Hyundai service advisor on July 6, 2018 politely said "all Tucson turbo models do this, no problem". to me this is scary. Does NHTSA think likewise and could there be a safety issue?

- Hyde Park, UT, USA

My vehicle has a acceleration, hesitation problem. The vehicle is stopped and when I put my foot on the gas it doesn't move then after a few second shoots forward. Just missed hitting another car today on route 128. This is a on going problem. Sometimes when I'm driving the vehicle will all of a sudden speed up. I feel very unsafe.

- Hamilton, MA, USA

The car hesitates when accelerating from a stop and acts as it's going to stall. There is no power in the gas pedal when this happens and it can take a few seconds before it finally shifts. This has been happening since May 2017 when I purchased it and I have reported ot to the dealership 3 times. They have been unable to duplicate the issue or find a code indicating that the issue has occurred.

- Eagan, MN, USA