The Screen Freezes And Does Not Accept Any Operation Entry

1. CHECK RESTARTING DISPLAY. 

   Turn the ignition switch OFF → ACC.

   Is the screen freeze eliminated?

   • Yes  : Go to  5.
   • No  : Go to  2.
2. REMOVE OTHER MEDIA OR EXTERNAL DEVICES. 

   Remove the CD, SD card (model with SD card slot) or external devices connected to USB. Also, remove the external devices with Bluetooth.

   Is the screen freeze eliminated?

   • Yes  : Go to  3.
   • No  : Go to  6.
3. CHECK OTHER EXTERNAL DEVICE CONNECTION. 

   When screen freeze is eliminated, connect external devices one by one to identify the device that causes screen freeze.

   Is the device that reproduces screen freeze identified?

   • Yes  : Go to  4.
   • No  : Go to  5.
4. CHECK OTHER EXTERNAL DEVICE CONNECTION. 
   1. Replace the identified device with the one that has the same performance.
   2. Turn the ignition switch to ACC.

   Does the screen freeze occur?

   • Yes  : Replace the unit. Ref. to ENTERTAINMENT>Audio .
   • No  : The external device may be defective.
5. CHECK OPERATION PROCEDURE. 

   Ask how the user operates when screen freeze occurs, and perform using the same procedure.

   Are the operation and screen normal?

   • Yes  : Currently no failure is found.
   • No  : Go to  6.
6. CHECK ENVIRONMENTAL CONDITION. 

   Check if any external devices which emit strong electromagnetic waves and noises, such as a radio antenna, is installed inside the vehicle.

   Is an external device installed?

   • Yes  : Remove the external device and perform the inspection from step 2. If the fault is not fixed: Go to  7.
   • No  : Go to  7.
7. PERFORM INITIALIZATION PROCEDURE. 

Perform the initialization procedure for the unit.

• Audio system: Ref. to ENTERTAINMENT>Audio System>OPERATION>INITIALIZATION (FACTORY DEFAULT) .
• Navigation system: Ref. to ENTERTAINMENT>Navigation System>OPERATION>INITIALIZATION (FACTORY DEFAULT) .

Is the screen freeze eliminated?

• Yes  : Go to  5. If the screen freeze occurs, replace the unit. Ref. to ENTERTAINMENT>Audio .
• No  : Replace the unit. Ref. to ENTERTAINMENT>Audio .