TSB Document:

• Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from GMC for this TSB. Call your local GMC dealer's service department & ask for a copy of TSB# PI0688E.

Affected Component: EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI

Summary

Poor Voice Quality During Bluetooth Call or OnStar? Personal Call.

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