Trying to pair new motorola bluetooth tracfone w376g with Corolla 09?

I have been unable to pair my motorola W376G to my Corolla 2009 XLE with handsfree bluetooth capability because I cannot find the location in the cel phone menu to enter the four digit pkey provided by the Corolla bluetooth. I followed the instructions in the manual found on the tracfone website. Although my cel phone detected the Corolla bluetooth and I selected it, it does not bring me to a menu that I can enter the pkey provided by system in my Corolla. Therefore, the pairing fails everytime. Can someone help me?