This information applies to Rainier, Rendezvous, Terraza, Escalade, Avalanche, Suburban, Tahoe, TrailBlazer, Uplander, Yukon, Envoy, HUMMER H2 and H3, and Saab 9-7X between 2005 and 2007 (2005-06 for Full Size Utility Trucks) with Navigation Radio (RPOs UM8, U3U or UA4).
After a radio is returned from the Electronic Service Center, some owners may comment of no radio navigation operation and a CD ERROR message displayed on the radio (fig. 9).
Bulletin 07-08-44-014 provides a service procedure to resolve these conditions. Check a navigation radio that is returned from the Electronic Service Center before customer delivery.
When following bulletin 07-08-44-014, the radio will display an Update in Progress screen(fig. 10) which indicates that a successful update is being loaded into the radio. After the update is complete, the radio should operate as intended.
Following the instructions in the bulletin will address most customer concerns and prevent a service comeback.
- Thanks to Doug Daugherty
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