Two problems related to battery cable have been reported for the 2013 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Hyundai Elantra based on all problems reported for the 2013 Elantra.
The parking light come on randomly. Even when the switch it turned to the off position. This causes the battery to run down. The only way to shut them off is to disconnect the battery cable. When 1st noticed the vehicle had not been driven for three days. It has happened several times since I first noticed it. Several other Hyundai owners have reported the same problem. Mostly with parking lights , but a few said it was their brake lights.
Used key fob to unlock doors, there was no response. Had to use key to unlock doors. Tried to start car and there was no electrical power. No dash lights, no radio, car did not start. Inspected battery cables, no corrosion, not loose. Got in car and it started. This is second time today it has happened.