CTS-V V8-6.0L VIN U (2006)
Radio Receiver: Customer Interest
Audio System - Loss of Satellite Signal
Bulletin No.: 06-08-44-011C
Date: January 31, 2008
TECHNICAL
Subject:
UAV Navigation Radio Loss of XM Satellite Radio (Replace Digital Radio Receiver)
Models:
2005-2006 Cadillac CTS, CTS-V
with Navigational Radio (RPO UAV) and XM Satellite Radio (RPO U2K)
Supercede:
This bulletin is being revised to notify dealers that parts are no longer on restriction. Please discard Corporate Bulletin Number 06-08-44-011B (Section
08 - Body and Accessories).
Condition
Some customers with the UAV Navigation radio may comment that the XM band is not present at times at vehicle start-up, when this occurs only
selections AM, FM1 and FM2 are available.
Cause
The XM receiver is removed as a band selection on the radio due to a loss of communication from the XM Digital Radio Receiver (DRR).
The communication is lost due to a "busy" state being reported from the XM DRR, even though no transmission is currently taking place.
The software in the XM DRR does not currently prevent this condition from occurring. A combination of heavy class 2 bus traffic and queuing of low
priority XM Traffic Data messages can increase the likelihood that this condition will occur.
Correction
DO NOT REPLACE THE RADIO OR SATELLITE ANTENNA.
If the Digital Radio Receiver (DRR) currently installed in the vehicle is P/N 15847358, continue with diagnosing the issue using the XM radio
information found in Service Information (SI). A replacement DRR may not be needed.
If the DRR is other than P/N 15847358, the DRR will require replacement.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
