Apple CarPlay GPS wrong location issue

No, I tried moving the antenna to the same location under the dash where the factory GPS antenna would be mounted if the car originally had factory navigation. Initially I thought it fixed it, but then as soon as I had everything permanently mounted and the dash reassembled, I encountered the same issue. Back to the drawing board.

One interesting thing about the behavior. Everything will work fine up up until the GPS location just freezes (usually when the car comes to a stop). The car will start again and but the GPS doesn't. Then 1-3 blocks later, the GPS will start to move again, but it is offset by that distance and remains that way until either the car is restarted or eventually it does seem to fully reset. Meanwhile the GPS signal in a diagnostic app I have says that the signal is very strong and accurate within 17 feet (which I think is the norm).

I may try disconnecting the antenna but from that other thread, it doesn't seem like it is really the right solution. Calling Alpine today to see what they say.

Brand new Ford F150. iOS 12.3.1 on my phone. Same exact issue. Waze, Google Maps, and Apple Maps all display my location exactly the same place, roughly two miles from where I actually am. Wondering if any other firmware updates for the vehicles in question have helped folks with this issue. Unplugging my phone from USB in the truck make either map program instantly jump to the right location. Plugging USB in again makes location jump right back to the wrong place.

As I've mentioned before, when connected via USB, the phone gets its location from your vehicle.

When unplugged, it could be either, but is most often just the GPS in your phone.

Talk to your Ford dealer and see if they have any updates for their GPS.

No Static At All wrote:

Second, yes, I and most in this thread know that CarPlay derives its GPS from the car when on USB, not the phone. So, it is mysterious that, as I specifically wrote (and have others) the GPS in the vehicle is completely accurate using its own navigation screen. It is only when interfacing with CarPlay that things run amok.

Which says the error is in the way the car head end is communicating GPS data to the phone.

Were it the phone, it would never or rarely work, but in fact CarPlay works properly on most systems.

I have no doubt Apple knows about this, but if they code a solution it will be to work around broken in-car systems.

This doesn't actually have anything to do with the CarPlay software on either the phone or the head unit. It has to do with the firmware that controls the GPS receiver in the car. THAT is where the problem lies.

It is 100% NOT an Apple problem.

I've had the same issue when connecting my iPhone XR to my new head unit, a Pioneer AVH-W4500NEX, via CarPlay. The only way I have found for my iPhone's GPS to not get lost is to:

1. Disconnect wireless CarPlay and Bluetooth from my head unit. I had to delete the settings completely from the head unit and my phone's wireless and Bluetooth settings.
2. Once I am outside of my parking garage, I unlock my phone and bring up any map (Apple, Google, or Waze). Once it locks on to my location, I connect to my head unit via cable. CarPlay connects and all is good.

I can live with having my iPhone hardwired to my head unit. Hope this helps.

Maipu444 wrote:

Update

My GPS started to act up intermittently even if hardwired only as I mentioned above. So now my additional workaround is to disable wireless and Bluetooth on my iPhone in order for my GPS to correctly display my location on any map (Apple, Google or Waze).

This has got to be a bug in IOS and not head units. Seconds after connecting CarPlay via cable and wifi/BT disabled on HU but not on iPhone, location on maps move sometimes 100 feet to miles. It’s like CarPlay enables a GPS chip location override with inaccurate wifi triangulation.

Not true; for one BT can interfere with GPS reception on some vehicles.

• If your vehicle has wireless CarPlay, the iPhone's GPS chip is completely ignored.
• If your vehicle has wired CarPlay, the iPhone's GPS chip may be ignored, depending upon what the head unit tells the phone to do.

So you are correct, CarPlay does enable GPS chip location override, the iPhone is getting its information from the vehicle.

If the vehicle supplies incorrect information, the iPhone has no way of knowing that and will use the information it gets.

I have tried everything with my 2018 Audi Q7 what people have mentioned so far on this forum but nothing worked.

Only temporary solution I have is resetting the location settings which kinda fix the problem for that moment and next time I get inside the car I face the same problem all over again.

It’s frustrating when you have spent 60k on something. I just simply gave up now.

I have exact same problem, my car does not have GPS. I have VW Polo with RCD340 infotainment system, changed the headunit but problem still persists.

[Edited by Moderator]

Does the car have a shark-fin antenna on it? If so, there is a GPS receiver in the car. The head unit may not offer navigation, but there is GPS.

Do you see time and temperature updated in head units when CAR starts ?

I see the clock but not sure about the temperature and somehow i am not able to correct time as well, it’s not in IST.

OBD setting still "on demand." Last 6 trips GPS location was accurate. Seems to be working. Fingers crossed.