Apple CarPlay GPS wrong location issue
Hello,
I bought a car with CarPlay functionality (Porsche Boxster with connect plus). I am using it with an iPhone X under IOS12.1.2 (latest OS to date). CarPlay works except for navigation apps. When I use either Waze, Google maps or Apple maps, the location gets switched between the actual current location and somewhere 20-30 meters from the car. Therefore the GPS guidance doesn't work since the actual location is incorrect.
GPS apps on the iPhone works fine when not connected with CarPlay in this car. GPS navigation system from the car works fine when the phone is not connected. But when I connect the iPhone X to the car, 9 times out of 10 the location is wrong. I guess the 1 time out 10 is probably when the car gps antenna is not detected by the phone or something like that.
I tried to start GPS apps first before connecting it to the car. It usually works for a few minutes (1-5 minutes) then the location is again off by 20-30 meters. I tried to start the GPS apps after I connect the phone to the car and I get the same result.
If I disconnect the phone, the car and iPhone GPS give me correct location. If I reconnect them, both give me the wrong location. When the car is not moving, the wrong location remains at the same spot even after I disconnect/reconnect the phone. So it's not giving a random location. It's off by 20-30 meters. Maybe iPhone can't interpret the GPS coordinates correctly from the car GPS antenna.
I tried the same iPhone X with an Opel Corsa with CarPlay, a Fiat 500 with CarPlay, Jeep Compass with Uconnect CarPlay and a car withSony xav-ax1000 radio with CarPlay. They all worked perfectly fine with GPS apps. None of those car/audio head-unit had a GSM/GPS antenna.
This car or Connect plus provide specific mobile phone tray which optimizes the phone's signal by relaying it through the car's exterior antenna.
So I already did this:
1. iPhone and Car have been rebooted
2. Siri is ON
3. CarPlay isn't restricted by Content & Privacy Restrictions
4. I tried to remove and put back the CarPlay profile.
5. The connection has been checked with different cable.
6. The iPhone firmware has been updated to the last available IOS 12.1.2.
7. IOS 12.0 didn’t work either.
8 Delete and reinstall Apps
9 Restore the phone
I can see other topics with the same problem:
https://discussions.apple.com/thread/8569938
https://www.jlwranglerforums.com/forum/threads/uconnect-carplay-wrong-location.5292/
Has anyone ever seen anything similar?
