Brownie258

Hey guys, I have a question about the navigation system for and 04 Is300. I recently had to replace my battery which I did. Now when I try and use the navigation system I put in the address and the voice lady tells me that my route has started but does not give me any turns or any voice commands. When i have arrived by watching the arrows and stuff she says that my route has been completed. When I bought the car the owners manual for the car and navigation were not included. I have messed around with settings for a while but just can not figure it out. Does anybody know what I may be doing wrong?