Blue tooth

I have a new Chevrolet Malibu and want to set up my cell phone to work with the bluetooth on the Malibu. It is requesting a password when I try to pair it with my phone. where do I get the password? Do i have to have Onstar to do that?

I think it is just like pairing with your buddies phone, your phone should have an option to put a password on the exchange, set it to 1 and use 1 on the car, for example, insert whatever number you want