2017 Hyundai Elantra Vehicle speed control Problems

“The car cuts off while driving.it stalls n traffic like it won't go n I almost have been hit several times.there is no check engine light on.very dangerous n scares me when I drive cause u never know when it's going to cut off n traffic or while turning.”

“In february 2020, my check engine light came on after my car began to shake violently and lose speed as I drove on the city streets and highways.the serviceman replaced the coils in my car. Within a week, my car started to shake and lose speed again. I took it back to the dealership where they fixed it again to no avail. In early march, my car was still experiencing the same problems: shaking violently and losing speed as I drove on both the highway and on city streets. I chose to try a different service center. …”

“Once again the car began to shake violently and started lunging forward while driving within city limits. Check engine warning light came on. I pulled over and shut the car off. When I restarted the car, the check engine light was no longer illuminated and the car seemed to drive somewhat normally. This was not the first time this happened, and from what I can tell by reading other similar complaints on the NHTSA website, several people are having these issues as well. It appears to be the ECM, engine control module. Hyundai needs to address this issue asap. …”

“This vehicle accelerates more than expected (lunges) when I put it in drive and release the brake without even having my foot on accelerator. On flat surface it begins to move ahead spontaneously without my foot on gas peddle. I brought to dealer and they said this is typical for Elantra and not a know issue. It has been mentioned by other driver's on reddit. The only solution is to have one foot on the brake and the other on accelerator to protect from sudden acceleration. There must be a software/hardware solution. …”

“I have a 2017 Hyundai Elantra. Started having problems with picking up speed rpms jumping and feeling like the car doesn't want to go. This started at 7,000 miles and I bought the car brand new off the lot it has been in over 8 times for this issue and have been told that nothing is wrong with the car or that because my car is not throwing check engine lights they wont fix it under warranty, or I'm not using a Hyundai approved gas station so this is why I'm having problems with the car, now at 29,000 miles still having problems its the worst on the expressway in stop and go traffic.now I…”