Hyundai Sonata radio and clock remain on without key in ignition after driving long distance on Hyundai Sonata

Some Hyundai Sonata owners report experiencing issues where the radio and clock remain on even after removing the key from the ignition. This problem may occur if the radio fails to turn off until the door is opened. Additionally, it could be linked to a blown fuse, loose battery connection, or internal malfunctions, including faulty ignition switches or electrical shorts. Some owners find that accessing the radio settings menu to reset the system might help, but if the issue continues, it is advisable to check the ignition switch fuse, inspect the battery and charging system, and consult a professional mechanic or Hyundai customer support for further assistance.