2010 Toyota Matrix Owners Manual - Page 244

3-3. Using the hands-free phone system (for cellular phone) Changing the passkey STEP 1 Select "Set Passkey" by using a voice command or . Pattern A STEP 2 Press the talk switch, say a 4 to 8-digit number, and select "Confirm" by using a voice command or . Pattern B STEP 2 Select a 4 to 8-digit number by 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.