LI82.70-P-051527_Ver_2 PDF

A service bulletin addressing an issue where the driver's voice cannot be understood by the other party when using an iPhone 3G/3GS/4 via the hands-free system in certain vehicle models. The document discusses a complaint about distorted voice transmission, identifies the cause as a GSM network issue, and suggests updating the iPhone software as a remedy. It provides details on the affected vehicle models and includes a note on non-warranty issues.