What is the problem exactly? Have you set both devices to "visible"? Could you provide the error messages on the phone and the car when you try to pair them? Have you successfully paired the BlackBerry with the car before? Or have you successfully paired the BlackBerry with any other devices such as a Bluetooth headset before?
For the information you have provided at the moment. I suggest you delete any previous profiles of the two devices on each other, make sure the two can "see" each other when you do a search, and try to pair them again.
Can anyone help, im having problems pairing my blackberry with my Honda Accord