How do you reset the radio for a 2010 Hyundai Elantra?

To reset the radio in a 2010 Hyundai Elantra, first, turn the vehicle's ignition to the "On" position without starting the engine. Then, press and hold the "Power" button on the radio until it turns off and then back on, which usually takes about 10 seconds. If this does not work, you may need to disconnect the car battery for a few minutes before reconnecting it, which will also reset the radio. Always refer to your owner's manual for specific instructions related to your vehicle model.