Hyundai Sonata battery drains when not in use, requiring roadside assistance on Hyundai Sonata

Some Hyundai Sonata owners report experiencing battery drainage issues when the vehicle is not in use, which can necessitate roadside assistance. These problems may arise due to unintended current draws, such as parasitic drain or self-discharge, exacerbated by extreme temperatures and battery age. Additionally, frequent activation of the keyless entry system or proximity sensors, particularly when the key fob is kept close to the vehicle, can contribute to battery depletion. To address these issues, some owners are advised to check the alternator if the battery drains while driving, inspect for electrical faults, and ensure proper battery connections, especially if the Battery Discharge Warning appears. If these measures do not resolve the problem, consulting a qualified mechanic or dealership for further diagnosis is recommended to prevent unexpected battery failures.