All of them bear repeating especially as this isnt something that is going to be "fixed" through any sort of software update as it is a HARDWARE limitiation of the particular center stack display and the radio system. (in someone's perspective it could be seen as more of a supplier issue, but certainly I agree that someone should have been sacked for approving this design)
As others have mentioned it's also an annoying issue with certain othe GM product as well. Just something that certainly slipped through the cracks with certain infotainment system combinations.
GM certainly has taken note of how this behavior bothers some owners and in fact some 2012s with the base radio operate differently.
However this is mostly because these cars use totally different hardware.
Unfortuantely is is highly doubtful there will ever be anything done to remedy this issue.
So it's important that new owners are made aware of ALL the potential work-arounds:
- manually turning down the volume
- SWC mute switch
- selecting AUX source with none present
Given all of the Volt's revolutionary engineering I guess if this is the most serious flaw in the car, it's not all that bad.