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User profile for user: Leechristian3
Leechristian3 Author
User level: Level 1
21 points

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?

Posted on Jan 10, 2019 4:39 AM

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User profile for user: Carplayneedstobefixed
Carplayneedstobefixed
User level: Level 1
4 points

Posted on Jan 9, 2020 5:05 AM

I have an Audi A4 B9 (~2017/18 version) with Navigation onboard and CarPlay is giving me similar issues in Singapore.


I connect my iPhone (iOS 13.3) via cable and everything works well except for all my navigation apps Apple Map, Google Maps and Waze.


After two months using CarPlay, the issue of my gps location being unable to lock or displaced about 50-100m from my actual location happened throughout clear weather to thunderstorms.


I thus thought it was a defective iPhone but then realised the navigation was always ok if I didn’t connect to CarPlay. I also noticed my car's navigation worked fine when the iPhone wasn’t connected too.


Fixes and semi fixes that worked for me on and off are listed below:


  1. Most of the time - connecting my Iphone before starting the car. This has generally worked well so far 9 times out of 10.
  2. disconnecting and reconnecting the cable has worked maybe 3 times out of 5.
  3. Starting the car’s own navigation (you need to navigate to a location not just go to the map) and then returning to CarPlay and starting navigation again while the car’s navigation is still running. This works 5 times out of 10.
  4. Powering iPhone on and off may initially increase the likelihood of the navigation apps on CarPlay working even if you turn the car on first, but it hasn’t been anywhere near reliable for me.


As you might have realised, it seems to very likely be some sort of sync error between iPhone and the car’s GPS system. Another poster in this thread mentioned that CarPlay may or may not use the car’s gps antenna when connected via cable. There could be something that is not syncing right if you connect while the car’s system has already initialised.


I don’t know if it’s an iOS 13.x issue or not. My iPhone was already on iOS 13.2 when I first used it with CarPlay.


I hope this helps somebody out there who may be as frustrated with it as I was. This is the first time I switched back to iPhone since the 5S, and it’s been a great experience so far save for CarPlay’s gps issues. I resisted coming back to iOS for so long largely because android auto was so much more useful than CarPlay up till recently.


I really hope Apple manages to fix this issue in the next update.



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Apple CarPlay GPS wrong location issue

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