The Map preview has been removed from SWRemote. However, you can still tap the "Navigation" button on the next page (step 2), the 'En Route's screen. Your Default Map App will load, and the first screen of this app will show you your Preview.
You can change your default Map App -
If you are unsure on how to test the connection or if you have any other questions, please feel free to contact our Help Center by email at firstname.lastname@example.org or by phone at 1-800-566-6940.