The contact owns a 2018 Hyundai Tucson. The contact stated that while driving up a hill, the vehicle lost motive power. While driving the vehicle at undisclosed speeds and turning, the vehicle hesitated and then accelerated. There were no warning lights illuminated. The vehicle was taken to the local dealer where however, the mechanic was unable to duplicate the failure. The vehicle was not diagnosed. The manufacturer was not contacted. The failure mileage was approximately 100,000.
2018 Hyundai Tucson acceleration complaints
Page 2 of 2: complaints 11 to 16 of 16, newest first, as owners wrote them.
Same dual clutch problem as on 2016 hyundai tucson. Hesitates for several seconds prior to engaging which causes significant danger in oncoming traffic. I had this same problem with the 2016 and hyundai continued to deny any known problems. Now there is a class action lawsuit regarding this issue. I traded my 2016 in for the 2018 to get away from the problem because I was so scared. Now I have the same problem with the new car. This problem is ongoing. Also I was coasting with foot not on the pedal and not in cruise control and the RPM's shot up to 4200 then down to normal, then back up to 2200 and then back to normal. Very scary. Had clutch engaged car would have shot forward into car in front of me. Dealer has acknowledged trouble with both problems and informed me that hyundai has switched clutch manufacturers.
When shifting gears, ie p to r or r to d or p to d, the car jerks / catches. Some have called it "turbo lag". It's definitely most noticeable at a dead stop. I have experienced this "lag" while backing up out of a parking spot and then trasferring to drive, as well as being at a dead stop at a stop sign / red light, and then accelerating. Both experiences have been in the city, highway, turning, and local roads. I don't know what has caused or what is causing this issue. Perhaps it's the torque converter? I bought this car new in nov 2018 and have had this issue since jan 2019. I have had other people drive my car and they have also experienced this issue. Other hyundai tuscon drivers have also experienced this issue, and have discussed it at this website: https://www.carcomplaints.com/hyundai/tucson/2018/transmission/will_not_accelerate.shtml
Tl* the contact owns a 2018 hyundai tucson. On several occasions, while driving approximately 1 MPH and attempting to make a left turn, the accelerator pedal was depressed; however, the vehicle failed to respond. The contact stated that the accelerator pedal was pumped 5-6 times before the vehicle responded. The vehicle was taken to faulkner hyundai (11500 roosevelt blvd, philadelphia, pa 19116, (215) 673-7462) to be diagnosed and the contact was informed that the vehicle performed as intended. The vehicle was not repaired. The failure recurred three times. The contact stated that the failure only occurred during left turns. The manufacturer was not notified of the failure. The approximate failure mileage was 300.
Once my brand new tucson hit 500 miles on it, it suddenly unintentionally accelerates while my foot is already pressing firmly on the break pedal. The first time, it happened as I was approaching the peak of a hill. I was going 25 MPH. My foot was already pressing on the breaks, anticipating the decline, when my car jolted forward and took off. My foot slammed on the breaks even harder, however I watched my speedometer hit 40 MPH while simaltaneously, my RPM decreased to 1... (yes, down a hill.) for about 5-7 seconds the RPM and seppdometer would not increase or decrease once hitting 40 MPH and 1 RPM. I had to lean over the wheel and slam my breaks to the floor before I regained control of the vehicle. Once this occurred, the car lagged, struggling to accelerate throughout the remainder of the drive (all flat roads). It is now day 5 of experiencing this, and it now occurs multiple times every time the vehicle is in motion, whether breaks are being applied prior, or not, regardless of the type of road I am on (flat, hill etc.) I was exiting a parking garage that had a mediocre ramp to exit the garage. My vehicle was going 12 MPH when I turned right to proceed down the ramp. My foot slowly pressed the break pedal, and my vehicle accelerated to 28 MPH, and maintained that speed for 3 seconds, before responding to my breaks. Yes, my foot had the breaks pressed all the way down. Another example, yesterday I was on a flat road driving at 27 MPH when it suddenly accelerated to 45 MPH, and the RPM dropping suddenly from 2, to 1. After a few seconds of my foot slammed on the breaks I regained control and pulled the car over. I turned the engine off and waited about 5 minutes. When I turned it back on, and began driving (3 minutes left in my drive), the car continued to lag, lunge forward, and could not reach speeds higher than 30 MPH. This car is brand new.
The vehicle is experiencing severe intermittent failures to accelerate. Failures occurr from a stop and while in motion. All gear levels appear to be affected. Failures were first noticed at approximately 7000 miles.
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