Hello Lillian,

This sounds like a software issue. If the vehicle build list included the Blue Tooth option these systems are quite complex so you may not be able to sort it out by looking over the guides.

I have included a link to the owners manual for the 2011 Impala if your original one is not available.

If the fault is software related and you purchased new from a dealer your best option is to request an estimate for repair.

Last but not least....and this does not always work...a system reset could be attempted by disconnecting the battery (-) for a short period (10 Minutes)and then re connecting it.

A previous post also referred to the amplifier as the culprit.

Impala Owners Manual:


http://www.chevrolet.com/content/dam/Chevrolet/northamerica/usa/nscwebsite/en/Home/Ownership/Manuals%20and%20Videos/02_pdf/2011_Impala_Owner_Manual.pdf