2010 Toyota Sienna Owners Manual - Page 375
2010 Toyota Sienna Manual
Page 375 highlights
3-4. Using the hands-free phone system (for cellular phone) Pattern B STEP 2 Select a 4 to 8-digit number using The number should be input 1 digit at a time. . STEP 3 When the entire number to be registered as a passkey has been input, press once again.