One problem related to software has been reported for the 2017 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2017 Hyundai Elantra based on all problems reported for the 2017 Elantra.
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. It is very dangerous to drive this vehicle. Do not allow them to say you need new spark plugs or a software update. This is a safety issue that needs a recall immediately.