[8] START VOICE CONTROL:  
					Press to start or end voice control (Refer to ’Voice Control’, page  
					4.15).  
					[9] MENU HOME/BACK:  
					Press to open the instrument cluster menu or go back one level  
					in the instrument cluster menu. Press and hold to return to the  
					home menu.  
					[10] MENU SCROLL BUTTONS:  
					Roll the menu scroll wheel up or down to navigate the instrument  
					cluster menu. Press the scroll wheel button to select an item in  
					the menu (referred to in this handbook as OK).  
					[11] VOLUME DOWN:  
					Press the volume down button to decrease the volume of the  
					audio system, or call volume during a phone call. Press and hold  
					to mute audio.  
					[12] VOLUME UP:  
					Press the volume up button to increase the volume of the audio  
					system, or call volume during a phone call.  
					4.12 Controls