Poor and/or No Radio Reception, Intermittent Static on FM with Navigational Radio System (Update Radio Software)

This bulletin is being updated with new ordering information for AVN software update discs. Please discard Corporate Bulletin Number 05-08-44-014A (Section 08 -- Body and Accessories).

Some customers may comment on the following conditions:

DO NOT REPLACE THE RADIO

Important: The software is updated using a disc, not through SPS programming. New software, P/N 15853651, can be obtained from the GM Navigation Disc Center. Dealers should retain the service disc for future use.

The software update will do the following:

The navigation/radio software, P/N 15853651, should be updated using the following procedure:

Important: 

Follow the steps below to complete the software update.

1. Turn the ignition "on" with the engine "off" by holding the ignition switch in "ACC" mode for at least 10 seconds.



2. Open the tilt screen (navigation screen) to gain access to the DVD drive.



3. Eject the navigation DVD from the DVD drive (bottom slot).

Important: It may be necessary to close the radio screen for Disc 1 - Navigation to begin operation. If the navigation software version in the navigation radio is the same or higher than v.1312, the software updating will not start.

4. Insert Disc 1- Navigation software version 1312 into the DVD slot.



5. "Preparing to Load System Software" is displayed on the screen along with a progress bar. It will take approximately 5 minutes for Disc 1 to load.
6. After Disc 1 - Navigation has completed the navigation system will automatically restart. Eject disc 1 from the DVD slot. Insert Disc 2 - Audio software version 01.0F into the DVD slot.

Important: Approximately 10-15 seconds after inserting the disc, the screen will go blank. It will appear that the radio has shut down and/or locked up. This is the mode the radio will go into when the software is updating. If the audio software version in the navigation radio is the same as v01.0F, the software updating process will not start.

7. When Disc 2 is completed, the system will automatically restart. It will take approximately 5-10 minutes for the system to restart. Remove Disc 2 - Audio from the DVD drive.
8. Turn the vehicle off. Open and close the driver's door and wait for 60 seconds.
9. Turn the vehicle on and reinstall the customer's navigation DVD.
10. Press the "NAV" button on the navigation radio, then press the "Agree" soft key on the screen.
11. After the map screen is displayed, touch the map screen to confirm that the map can be scrolled.
12. Using the Tech 2®, clear any/all DTCs from the radio.

GM dealers must order advanced vehicle navigation (AVN) software update discs from the GM Navigation Disc Center. These discs will no longer be available from GMSPO.

To obtain an AVN software update disc, contact the GM Navigation Disc Center at 1-877-628-3472.

The parts listed below are for updating the navigation radio software only. They do not update or replace the navigation map disc that is supplied with the vehicle. Please order these parts only as needed. There is a very limited supply of these discs available. Do not order this part for stock. This disc can be used to reprogram more than one vehicle.

The first update disc for each P/N is free. Subsequent copies of the same P/N for the same dealer will cost $50.

For vehicles repaired under warranty, use: