Troubleshooting; Sound And Display - Hyundai Sonata 2020 Quick Reference Manual

Troubleshooting

Before reporting a malfunctioning system, refer to the following table for troubleshooting
tips. If the problem persists or you are unable to locate your specific need, contact your
place of purchase or dealer.

Sound and display

Symptom
No sound
Sound is heard from
only one speaker.
Sound is cut off or
a distorted noise is
heard.
The image quality is
deteriorated.
Small red, blue, or
green dots appear on
the screen.
9-2
Possible cause
System turned off
Low volume level
System muted
Unbalanced sound
output
System vibration
System vibration
Aged or
deteriorated
screen
Solution
• Ensure that the engine start/stop button
is set to "ACC" or "ON."
• Press the Power button to turn on the
system.
Turn the Volume knob on the control panel
to adjust the volume.
Press the Mute button on the steering
wheel to unmute the system.
On the Home screen, press All Menus >
Setup > Sound > Position and change the
settings to adjust the sound balance.
This is not a malfunction. Vibration can
cause distortion and even cut off sound.
The system will function normally when the
vibration stops.
This is not a malfunction. Vibration can
cause distortion. The system will function
normally when the vibration stops.
If the problem persists, contact your place
of purchase or dealer.
Because the LCD is manufactured with
technology requiring extremely high pixel
density, dead, stuck or poorly lit pixels may
occur. The permitted amount is no more
than 0.01% of the total pixels.