Hyundai ELANTRA Owner's Manual page 42

Troubleshooting
Symptom
Power doesn't turn on
The unit doesn't operate
Playback is not possible
There's no sound
Cause
The ignition switch is NOT turned ON
The ignition switch is NOT set to ACC
The power of unit is turned OFF
Noise and other factors are causing the
built-in microprocessor to operate
incorrectly
The unit does not operate normally
The disc is dirty
The loaded disc is a type this unit
cannot play
The disc is inserted upside down
The files on the disc are an irregular
file format
The volume level is low
The mute is on
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Correction
Turn the ignition switch to ON
Set the ignition switch to ACC
Turn the unit on by pressing 1 on the
control panel
Turn the unit off and then on
You can reset the unit Press the RESET
hole with a sharp object
Clean disc
Check the type of the disc
Insert the disc with the label upward
Check the file format
Adjust the volume
Turn the mute off