Audio Volume Stuck In Loud Position - keywords inoperative navigation radio sound
| Subject: | Audio Volume Stuck in Loud Position |
| Models: | 2007-2009 Chevrolet Avalanche, Silverado, Suburban, Tahoe |
| 2007-2009 GMC Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL |
| With RPO (U3U or UVB) |
This PI was superseded to update model years. Please discard PIT4034A.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Some customers may comment that the Navigation radio volume control does not function and it seems to be stuck at a very loud level after the radio has been repaired or replaced in service. If the incorrect radio calibration is selected in TIS2000, the navigation radio may experience a loss of volume control.
Recommendation/Instructions:
To repair the concern, reprogram the navigation radio referencing the correct RPO options of the vehicle to verify the radio is being programmed correctly.
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.
