System Locks Up or Freezes Constantly

System locks up or freezes constantly

NOTE:
- Always check for and resolve all CAN DTCs before troubleshooting the navigation system.
- Always check the connectors for poor connections or loose terminals.
- Before troubleshooting, make sure you have the navigation system anti-theft codes.
- After troubleshooting, enter the navigation system anti-theft codes.
- Verify that the correct navigation unit is installed for this model.
Go into the Diagnostic mode and use "Version".
- Always make sure that the correct DVD color and version are installed.
- Check on-line for service bulletins or other service information for the navigation system.

1. Start the engine, turn the ignition switch OFF, then turn the ignition switch ON (II).

Does the system reboot?

YES - The system is OK at this time.

NO - Check the DVD for scratches or damage and the navigation unit for water damage. If OK, go into the Diagnostic mode and do all of the "Unit Check" diagnostics.