My Apple iPhone navigation feature seems to not work properly when I travel. I use both the Apple Maps and Google Maps apps, and both have the same issue where it simply will not go into navigation mode. After researching this issue thoroughly, there are some things you can do to solve this issue.
Note: This post assumes you have GPS enabled.
1. Restart the iPhone
Restarting the iPhone will force it to grab new wireless tower information. Press and hold the “Power” button, then power it off, then back on.
2. Enable Data Roaming
Make sure your iPhone can connect to as many wireless towers as possible by enabling data roaming under “Settings” > “Cellular” > “Roaming” and turn “Data Roaming” to “On” (green).
3. Enable Wi-Fi
Navigation features can use nearby Wi-Fi networks to determine where you are. Make sure Wi-Fi is enabled under “Settings” > “Wi-Fi“. You don’t have to be connected to a Wi-Fi network for it to help you navigate.
These steps have helped me greatly. As soon as I did all three of these steps, navigation in Maps worked flawlessly.