Navigation System Symptom Troubleshooting - System locks up constantly
System locks up constantly
NOTE: Check that the correct colored DVD is installed.
  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. ■