Follow these steps if you are unable to use the GPS feature on the car stereo after updating the map on the GPS module:
- Turn off the GPS module
- Disconnect the GPS module from the head unit and reconnect it.
- Remove the memory card from the GPS module and re-insert it.
- Turn on the GPS module.
- Start the navigation function.
IMPORTANT: If the issue is not resolved after following the steps, try updating the map again.