See Figure 1 and Figure 2. After pairing the iPhone, the screen will display two instructions confirming operation of the voice command button.
Figure 1. Activate SIRI
Figure 2. Disconnect SIRI
1. See Figure 3. Press and hold voice command button to activate Siri.
2. Siri will display on the screen followed by How may I help you? Speak your command.
3. Press and hold voice command button to disconnect Siri.
1Initiate Voice Recognition Session
Figure 3. Voice Command Switch