Go to the Maps icon from your iPhone’s homescreen. It will be an icon with a small red placemark on it. You need to ensure that your phone is connected to a data or wifi connection in order to use the application.
Once you open the application, you will see a menu at the bottom containing four options. The first option turns on your location services which the application uses. The second button can help you search the maps while the third button gives you directions. Tap on Directions.
When you do that, you will see an option to enter a starting point and an ending point. Type in both the fields and then type the Route button on the bottom right to get directions from one place to another.
You will also have the option to tap the Options button on the right hand corner of the screen to see various options available to reach the destination. You can view the directions on the screen or alternatively, can select to receive step-by-step instructions.
That’s it. You have now successfully learnt how to get driving directions on an iPhone 3GS using the Google Maps application.