Hyundai Genesis battery drains if not started within a week on Hyundai Genesis

Some Hyundai Genesis owners report experiencing battery drain issues if the vehicle is not started within a week. This problem may be related to a parasitic power draw, where components continue to draw current even when the vehicle is off. Some owners have found that a recent software update addressed overnight drain issues, but others still face difficulties. To diagnose the problem, owners can measure the amps after disconnecting the negative battery cable. It is recommended to have the battery and charging system tested by a professional if battery drain is suspected. Additionally, completely draining the battery can harm its health, so using a trickle charger while the vehicle is not in use can help maintain its charge. Some Genesis owners have reported needing to replace their batteries due to these draining issues, highlighting the importance of addressing this concern promptly.