Operation Manual
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4-1. TROUBLESHOOTING GUIDE
SELF-DIAGNOSIS
04. Miscellaneous
Clock displays incorrect time.
Manually setting the clock is not required as Unavi system automatically adjusts time based on the GPS.
Check to see if there is GPS signal reception in the current location.
If the clock is off by an hour or two, check time zone and DST settings in the navigation menu.
To learn more about the clock application, please refer to section 2-4.
Some vehicle models will require the user to manually congure the clock displayed on the radio screen by
going into the SETUP menu; Refer to vehicle Owner’s Manual.
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GPS does not acquire any signal or abruptly stops working.
GPS signal is weak, causing reduced positioning accuracy. In general, GPS receiver performs best in open spaces under a
clear sky. Check signal reception and position of the GPS receiver if necessary, or continue driving until reception improves.
Weather condition will affect GPS reception – cloudy sky, rain and snow contribute to worsen sensitivity. Wait until the weather
condition is improved.
Move the GPS receiver away from interference sources. Check to see that there are no electronic devices near the receiver, and
when using cellular phone, keep distance away from the receiver.
Some vehicles using heavy metallic sun protecting coating on windshields may affect GPS signal reception:
- Driving in and around tall buildings may affect signal reception
- Driving in tunnels, parking structures or on bridges may affect signal reception.
- When GPS receiver is moving, it will take longer time to get position x. Wait for satellite signals to be locked at a xed point
during the initial power-on stage.
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Navigation does not open or fails to load properly.
Using SD Cards other than the original product may not be compatible with the Unavi system.
Make sure SD Card is properly inserted in the control box and lock switch is in unlock position.
Make sure the control box is secured and cables are connected properly.
Check if required map les are not missing or damaged by loading it from a computer.
If above steps do not work, re-install program and/or reload map les.
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