One problem related to battery dead 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.
10/7/19 - my car battery was dead after sitting for 8 hours parked. There was no indication that it was losing power and I had brought my vehicle in to be serviced at a Hyundai dealer a week before where they said no issues were seen with my battery at that time. I got a jump and drove home. The next morning my car would not start again. The car was towed to a shop because it couldn't even be jumped at this point. We were told by the same Hyundai dealer the battery was beyond dead. And needed to be replaced. It was barely two years old at this point. But we replaced it. 7/7/20 my battery is completely dead again. Car wouldn't start again today without warning. A repair shop tested it and it was completely drained dead. They said it needs to be replaced. This is the second time in less than one year. This is not right.