To use any of the phone features for SYNC® with MyFord Touch® — such as making a call, receiving a text message, or using SYNC Services — you must first connect, or "pair" your Bluetooth® enabled phone. Some smartphones use a four-digit Personal Identification Numbers (PIN) and cannot accept the six-digit PIN provided by SYNC. A reverse pairing allows you to pair a phone requiring a four-digit PIN.27,48,129

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