Depending on your wireless service provider, this feature might not be supported.
You can use GPS technology on your BlackBerry smartphone to get your GPS location and to use location-based applications and location-based services. Location-based applications can use your GPS location to provide you with information such as driving directions.
If your smartphone does not have an internal GPS receiver or your wireless service provider does not support location-based services and you want to use GPS technology, you can pair your smartphone with a Bluetooth enabled GPS receiver. For more information, contact your wireless service provider.