Hyundai LAN1050EHGD Service Manual page 30

Map matching
As mentioned, the GPS systems used by this Navigation System are susceptible to certain errors.
Their calculations may on occasion place you to a location on the map where no road exists. In this situation,
the processing system understands that vehicles travel only on roads, and is able to correct your position by
adjusting it to a nearby road. This is called map matching.
With map matching.
Symptom
Power does not turn on.
The unit does not operate.
Playback is not possible.
There is no sound.
Cause
The ignition switch is NOT turned ON.
The ignition switch is NOT set to ACC. Set the ignition switch to ACC.
The power of the 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.
8-2
With no map matching.
Turn the ignition switch to ON.
Turn the unit on by pressing
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.
Correction