How to Reset the Clock

It took me some time to find this information. I tried method 4 without success several times before learning about the RESET button, which is an easier method.
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How to Reset Your Vehicle Clock

Kia has issued several troubleshooting resolutions to reset your clock. Make sure your vehicle is parked outside and is receiving a strong GPS signal.

Method 1

With your vehicle running and the radio fully booted, press the RESET button location on the outside of the unit with a pen or paperclip. NOTE: The button may be inside the SD slot card area.

Method 2

1. With your vehicle running and radio fully booted, remove the SD car
2. The error message “SD Card Removed”, or a similar message will appear
3. Press the RESET button on the outside of the unit with a pen or paperclip
4. Allow the unit to fully reboot
5. Reinstall the SD card and allow the system to restart
6. Once restarted leave the unit running for approximately three minutes to allow for GPS location acquisition
7. Verify the clock is now displayed

Method 3

1. Go to the clock settings and turn off GPS time
2. Perform the SD card removal and reset procedure in Method 2
3. Verify the clock is now displayed
4. Turn GPS Time back on in settings

Method 4

1. Remove the multimedia fuse from the smart junction box
2. Allow the vehicle to sit with the power and ignition off for 15 minutes
3. Reinsert the multimedia fuse
4. Verify the clock is now displayed