New Route Cannot Be Calculated Using Navigation System, Incorrect Spanish Translation of Right Rear tire Pressure When Using 2007 Model Year Map DVD (Update Navigation System Software)

Some customers may comment that they cannot calculate a route in their vehicle's navigation system when using the updated 2007 model year map DVD, P/N 15923712. Others may comment that the Spanish language translation of the right rear tire pressure is incorrect.

This condition may be caused by the navigation system software. The format of the European map DVD, starting in the 2007 model year, is different than in previous year's and the navigation system software will require an update.

Important: Once the navigation radio is updated, it will still be compatible with the customer's original map DVD.

Technicians are to verify the need for a navigation radio software update and perform the software update if required.

1. Connect a Tech 2® to the vehicle, turn the ignition switch to ON with the engine off and build the vehicle. Obtain the navigation system software version number. Compare this number to the version number on the software update CD. If the navigation system software is the same or higher than the update CD software version, the software update will not start and the update is not necessary.
2. If the vehicle's navigation system software version is lower than the update CD version, continue with this procedure.
3. Wait until the audio or map screen is displayed after the Cadillac logo screen.
4. Eject the map DVD, if loaded. Load the navigation system software update CD into the map DVD loading slot.
5. The "Preparing to load system software" message will appear on the screen along with a progress bar. When the green progress bar reaches the end, the software update is complete and the system will automatically restart.
6. Eject the software update CD from the map DVD slot.
7. Use the Tech 2 to verify that the new software installed in the navigation system matches the version number on the software update CD.
8. Turn the ignition to OFF.
9. Open and close the driver's door and then wait for 60 seconds.
10. Turn the ignition to ON.
11. Load the customer's map DVD into the slot located behind the navigation system screen.
12. Touch the "I agree" screen button. If the "I agree" screen does not come up, touch the "globe"/map key to access the navigation screen.
13. Verify that the navigation system gives the correct location of the vehicle. If necessary, recalibrate the navigation system.
14. Turn the ignition to OFF. The navigation system software update is now complete.

Important: This part is not available through GMSPO. The software update package will be supplied automatically by Cadillac and Corvette Europe -- Material Management Distribution Center (Portica) to European GM dealerships.

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