fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
10,351 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2019 Hyundai Tucson engine problems

engine problem

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2019 Hyundai Tucson Owner Comments

problem #6

Sep 292022


  • 10,724 miles


The contact owns a 2019 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the vehicle hesitated to accelerate while the engine revved loudly. The vehicle then jerked forward while driving. Additionally, there was an abnormal rubber odor detected. The vehicle was taken to the dealer; however, the dealer was unable to duplicate the failure. The failure recurred, and the vehicle was taken back to the dealer, where it remained unrepaired. The manufacturer was made aware of the failure and a case was opened. The failure mileage was 10,724.

- Bronx, NY, USA

problem #5

Nov 052022


  • miles
I was merging onto a highway at high speeds when the car stuttered. The check engine light began to flash and I lost acceleration. I could push the gas pedal to the floor and the car would not accelerate at all. The car lost it's speed and I could not go anymore than 30mph, and it would not go higher than 2rpms. It put me and my baby (who was in the backseat) in danger as we were going fast on a highway and out of nowhere the car lost speed and I could not accelerate. I could've easily been hit by another driver going the regular speed limit. I drove it to the dealership that just happened to be down the street, and the car struggled to accelerate from a complete stop, as well as in general. From a complete stop, the car would sputter and jerk when pressing on the gas pedal. The dealership diagnosed it as a faulty Knock Sensor. They said they would replace the sensor as it was still under warrenty. When I left the dealership, the check engine light was off and the car was driving fine. Fast forward to the next day, I was driving again on a highway at about 65mph, when the SAME thing happens. The car stuttered, lost all acceleration, and the check engine light was flashing. I ended up driving it home (about 10 miles away) and the whole time I could not go faster than 30mph without the car shaking. This time the car would not go higher than 1.5rpms. I checked the engine at home and a P1326 code came up, which is a code for the Knock Sensor. I called the Hyundai dealership that I originally went to and they said there was nothing they can do about it at the moment since they had just replaced it. Prior to all of this, there was no warning sign at all that this was a potential hazard. It happened so suddenly and both times it happened put me in a dangerous situation.

- Molalla, OR, USA

problem #4

Jul 032021


  • 41,580 miles
The contact owns a 2019 Hyundai Tucson. The contact stated that the vehicle was consuming oil. The contact stated while her daughter was driving approximately 40 MPH, the RPM increased from 2,000 to 3,000 RPM. There was no warning light illuminated. The vehicle was taken to the local dealer where they were unable to duplicate the failure. The vehicle was not diagnosed or repaired. The vehicle was taken back to the local dealer and diagnosed that an oil change was needed, and the PCV valve needed to be replaced. The vehicle was repaired however, the failure recurred. Additionally, while her daughter was driving the vehicle hesitated and failed to accelerate. The vehicle was taken back to the local dealer and it was determined that an oil consumption test needed to be performed. The manufacturer was notified however, no further assistance was provided. The failure mileage was approximately 41,580.

- Cincinnati, OH, USA

problem #3

Sep 272019


  • 4,000 miles


September 2019, four months after we purchased it brand new. The vehicles stopped responding to my acceleration on highway speeds when all the technology screens went out in the vehicle. While at a red light the vehicles RPM's will visually go up and down and the vehicle shutters as if it is going to turn off. It has unintended acceleration when I'm sitting at a standstill and go to accelerate the vehicle will jump so to speak once the accelerator is engaged. Unfortunately my videos are too long to upload but I do have confirmation of 2 of the 3 concerns but am unable to record the highway concerns due to obvious safety reasons.

- Orlando, FL, USA

problem #2

Sep 182019


  • 4,000 miles
Driving from Liberty, mo. To Chicago, smart cruise control set at 70-75 mph, very little traffic, after around 2 1/2 hours of driving, about 40 miles from hannibal, mo. Car accelerated to 90 mph by itself. Vehicle cruise control would not shut off by cruise button, cancel button, or brake. Got off at first ramp with car running at 90 mph by braking hard. Pulled over and put car in park. Motor surging at high RPM, would not stop running up and down. Cruise indicator lights off. Shut off engine. Called blue link, referred to nearest dealer, no codes showing on car. After half hour restart car, no problems. Checked floor mats and removed. On return trip around 2 1/2 hours from start at around 70-75mph setting, the car accelerated to 90mph by itself, with the smart cruise control on, no traffic, no floor mats, and turned cruise control off, cruise button, cancel button, brake, but engine kept running at 90 mph. Braked hard, pulled over, engine surging in park. Shut off, waited 1/2 hour, no further problem on way home. Dealership couldn't find any codes or engine or cruise control problems. Noted mats in car, didn't comment when when stated they were informed mats out of car when second occurrence.

- Liberty, MO, USA

problem #1

Sep 242019


  • 1,800 miles
2019 Hyundai a Tucson was stopped in driveway with auto hold on while speaking with an independent witness. Feet were not touching any pedals and auto hold was engaged with verification on dash. Vehicle suddenly accelerated down driveway and into street traveling towards mailbox across street. Was able to apply brakes with a lot of pressure and stopped vehicle. Vehicles RPM's and speed went up like pressing hard on gas pedal. Vehicle has 1800 miles

- Schererville, IN, USA

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