2009 Toyota Sienna Owners Manual - Page 356
2009 Toyota Sienna Manual
Page 356 highlights
3-4. Using the hands-free phone system (for cellular phone) CAUTION n Caution while driving Do not use a cellular phone, or connect the Bluetooth® phone. NOTICE n To prevent damage to a cellular phone Do not leave a cellular phone in the vehicle. The temperature inside may become high resulting in damage to the phone. 330