For 1990-2009 cars only
Audio Volume Too Loud After Ending An OnStar Call - keywords loud navigation noise onstar radio volume UM8 xm xmradio
| Subject: | Audio Volume Too Loud After Ending A OnStar® Call |
| Models: | 2005 - 2006 Cadillac Escalade, Escalade ESV, Escalade EXT |
| 2005 -2006 GMC Sierra Denali, Yukon Denali, Yukon XL Denali |
| with Navigation Radio (RPO UM8) and Uplevel package (RPO Y91) |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Some customers may report that after ending an OnStar® call, the audio volume on the radio may play too loud for a few seconds then drop to the normal level again. This concern only occurs if the radio is tuned to a XM™ band before making or receiving a call on the OnStar® system.
Recommendation/Instructions:
Engineering has determined that this is a normal condition at this time. No repairs should be attempted.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
