Onstar module linked to phone microphone

[bberdds]

My Onstar module just recently went out.  It has been some weeks, since it was brought to the dealership.  How long are they on backorder?

Is the module linked to the phone microphone?  Around the time I think the module went out, people starting not being able to hear me well when the Iphone is connected to the truck.  Chevy 2500.  The phone is updated and vehicle seems to be updated as well.  I linked it to WiFi to make sure I checked.  It said it was up to date. 

thanks

[Advisor_Helen]

We appreciate you providing these details. Our team here would be more than happy to further connect with your servicing dealership and provide an additional layer of support with any part delays or technical questions. Please send an email to us at socialmedia@gm.com with the subject line "ATTN: OnStar Community/bberdds" so we can further assist.