No GPS Showing your Approximate Location Error in iPhone Maps.
I will go Apple and him they will say I will diagnostic your mobile it’s every thing is fine once you reset your mobile ofter you check they will saying like this
Hi bro, do check whether Location & Privacy Settings enabled for Waze app. Also make sure to keep WiFi and Bluetooth ON from control center while using the app. Update Waze app if its available in appstore or reinstalling waze app will also help.
Did you check with Google Maps? is it working normally?
Bro I will do this but problem is not solved 
then it must be waze app problem bro. even if reinstalling didnt fix then we have to wait for waze app update to fix it.