Hyundai Genesis sudden acceleration problems

Filed Jul 6, 2019 · Transmission · 55,000 miles · PA

While accelerating, the transmission would slip. This would cause the car to lose power while the gear slipped, then the gear would catch and the car would surge forward. The dealer could not find an issue and gave the car back to me. The problem returned, so I had the car towed back to the dealer. The dealer replaced the automatic transmission and the issue resolved. The replaced transmission began to exhibit the same behavior approximately 35,000 miles later.

Filed Jan 26, 2019 · Acceleration · 41,000 miles · KS

Unintended acceleration of vehicle after removing foot from gas pedal. After starting my car and backing up, I put my vehicle into drive. Before I put my foot on the gas pedal, the car began to accelerate by itself without the speed registering on the speedometer or the RPM's registering on the tachometer. No warning lights appeared and continued to do this even after coming to a complete stop. The current mileage is 41000 miles, and has had regular maintenance performed. I am an ase certified technician and could find no reason for this to occur.

Filed Sep 28, 2017 · Acceleration, Brakes · 65,000 miles · FL

Tl* the contact owns a 2012 hyundai genesis. While at a stop light, the vehicle suddenly experienced unintended acceleration. During the incident, the brakes malfunctioned and would not immediately stop the vehicle when the brake pedal was depressed. Moments later, the engine backfired and the check engine indicator illuminated. The vehicle was taken to the local dealer (hyundai of coconut creek in coconut creek, fl) where it was diagnosed that the engine valve was faulty and needed to be replaced. The vehicle was repaired, but the failure recurred. The vehicle was taken back to the dealer where it was diagnosed that the transmission was faulty and need to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 65,000.

Filed Mar 1, 2017 · Engine · 80,000 miles · SC

I have complained at least 2 or 3 times concerning a sudden acceleration from the stop position. The engine revs up and the car takes off without my doing it. I've reported this in 2014, and 2016 - now I see there's a recall for the transmission but my car isn't one of them? Really...

Filed Nov 24, 2016 · Fuel system · 1,800 miles · NC

While rolling slowly, then accelerating to cross 3 lanes of traffic, mainly in local town driving, the car seems to stall and then suddenly accelerated very quickly. This has happened at least 10 times in different situations I.e.: changing lanes quickly after rolling, while waiting for an opening in traffic. Have brought car back to dealer many times with the same complaint. Once they said they updated the transmission. It did not help. The last time they said don't use the eco mode, it creates a slight hesitation. I'm afraid this car will kill me someday when I pull out into traffic and have be power

Filed Mar 11, 2016 · Acceleration · 57,385 miles · FL · crash

My 2011 hyundai genesis engaged in unintended sudden acceleration on 3/9/16 at 5:35 pm, in tampa, fl, resulting in a crash into a dwelling at 306 west frances avenue, tampa, fl.33607. Vehicle was in the process of being parked on side of house when it all of a sudden accelerated and applying the brakes failed to stop it

Filed Jul 1, 2015 · Engine · 10,786 miles · FL

After accelerating from a stop light behind another vehicle, there was a loud cracking noise heard from behind the dash board and the car suddenly and violently accelerated without warning with a loud "boom" in the back as though someone had hit me from behind, but no one had hit me. I had to brake hard to avoid hitting the car in from of me. When the car violently accelerated the back of the car dipped down (and the front up). I immediately called the dealer and reported this and the car is now in the repair shop. There are no error codes in the gds system for this incident and they are unable to reproduce. This was a very frightening experience and my trust level is now 0/100.

Filed Dec 20, 2014 · Acceleration, Airbags · 29,000 miles · FL · crash

"I was subjected to a sudden acceleration last night while driving my 2009 hyundai genesis 4.6. I left a full stop and sighted another car speeding toward a stop sign coming from my left. To avoid being broadsided I swerved to avoid and my accelerator jammed. I sped across the street and into a landscaped area. I hit a tree at that point which brought my vehicle to a stop. The driver side air bag deployed and I was wearing a seat belt. I sustained some impact injuries that appear to be of a minor nature. A lake was located just beyond the tree and I deliberately selected the medium size tree as a target. I was fortunate. I sustained a back injury some years ago and drive with two feet - one for the accelerator and one for the brake. There was therefore no chance that my foot slipped from one pedal to the other. Ref: hyundai genesis 4.6 2009.

Filed Aug 12, 2014 · Transmission · 5,000 miles · OR

I had this verified scenario by the local hyundai technician while he had the computer hooked to my car and I consistently duplicated the problem. While quickly decelerating from 25-20 MPH to under 5mph the transmission delays the shift from 3rd or 4th gear directly to 1st gear by 2-4 seconds without any power. When immediate power is needed the delay causes me to give it more gas in hopes of more immediate response. Eventually the car gives sudden acceleration often times triggering the traction control to engage. This has caused a few near miss accidents for me. I bring it up to the dealership everytime I have the car serviced but it doesn't appear hyundai has a fix. I have also sent in this issue directly to hyundai USA. The issue is the shift pattern from 3rd or 4th directly to 1st gear. If the car would downshift evenly 4,3,2 then the proper gear would be engaged when power is needed.

Filed Nov 16, 2013 · Acceleration, Fuel system · 150 miles · CA

I had to put in a date to make this work this a problem from the first day I bought the car. From a stop if I accelerated to a few miles per hour and for some reason I had to stop, when I pushed down on the accelerator nothing happened. After a second or two the car jumped forward and if another car was close I would have I would have rear ended it. Obviously, I am extra cautious and have avoided this problem. I reported it to the dealer twice and got the same answer, "oh they all do that." the dealers are protecting hyundai. Who will protect me? I checked online and found that there are many people with this problem. One person said he turned off the tracking control system. This is a dangerous problem especially for an inexperienced or novice driver.