2011 Toyota Highlander Owners Manual - Page 377

3-4. Using the hands-free phone system (for cellular phone) n Steering wheel telephone switches Volume The voice guidance volume cannot be adjusted by using this switch. On-hook switch Turns the hands-free system off/ends a call/refuses a call Off-hook switch Turns the hands-free system on/starts a call Talk switch Turns the voice command system on (press)/turns the voice command system off (press and hold) n Microphone 3 Interior features 357