Apple CarPlay GPS wrong location issue

Guys - get your car checked for VSS ( vehicle speed signal ) to infotainment system. Without VSS apple car play drift or delayed.

i got reply from kenwood support. After the firmware was updated, you had to initialize the unit like reset to the factory default.

Seem like the issue has been resolved. Please try it out.

It is not an Apple issue; the head end is feeding incorrect data to the phone. Apple does not control CarPlay software on the automobile end; auto head end manufacturers have to code CarPlay systems to comply with Apple's requirements.

There is nothing Apple can do if a device is being fed incorrect location information without changing the way CarPlay works.

From an Apple Developer presentation on developing for CarPlay:

Wired means the speed/GPS information data from the head unit is optional but recommended.

The fact that the location would go wrong as soon as the cable was connected shows the head end was providing the (incorrect) data.

Hi, everyone. I just started experiencing similar issues. I have an iPhone Xs Max, running iOS 12.4. I drive a 2018 Genesis G80. I have never had any issues using CarPlay. NEVER.

At least, unti last week. Coincidentally, last week I updated my car's navigation software (from MapNSoft) to the latest version, which was 13.5 for Hyundai/Genesis vehicles. Updating the software not only updates the maps for the in-dash navi, but it also updates the entire infotainment system, including Apple CarPlay functions. Ever since that update, Apple CarPlay has trouble tracking my vehicle. If I'm navigating somewhere with directions, it works pretty well, except when I drive into a tunnel, or through a long underpass. Then it loses me until I come out the other side. But if I drive without a specific destination programmed, the maps don't seem to know where I am.

To test this, I went into my friend's Hyundai, which uses an older infotainment build. I plugged my phone in, and it worked PERFECTLY. Then we went to my car, and had issues again. We even plugged my friend's iPhone into my car, and he had the same issues. So it's definitely not our phones. Considering that this all began after updating my car's head unit, it has to be the car. Although oddly, the issues are sporadic. Sometimes it's perfect. Sometimes it's hit or miss. Sometimes it's horrible.

Note: Outside of my CarPlay navigational issues, my car's in-dash navi works perfectly. So I don't believe it's my car's GPS antenna or anything of the sort.

Yes, and it does seem to go wrong when the car had its own gps and the phone is connected with its own gps active.

Deadly embrace?

Has anyone who is affected with built in car Nav tried it with the phone location services turned off before connecting?

BTW I chose my car without the Nav option so I could use Maps with Car Play and it is spot on.

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.

I’m having the exact same problem with a new Alpine iLX-107 installed in a 2014 Subaru Forester. It is driving me nuts. It works for a few minutes and then kicks me to another street nearby. Happens on Apple Maps, Waze and Google Maps with identical behavior.

I thought it was a GPS antenna location issue. I installed the antenna on the passenger side dash with clear line of sight to the glass, no obstruction on the glass. I took it to a car audio shop who said that they install antennas in the same location all the time and do not think it is a antenna location problem.

The only consistent thing I see in the forums is that it seems to be happening with people using IPhone X or Xs. I have an Xs with iOS 12.1.2. I have tried it with both wired and wireless connections to CarPlay, same results. Without a connection to CarPlay, GPS works great on the phone, even in the car places next to the antenna.

I’m planning to call Alpine on a weekday to see what they say, but im not too optimistic given that people having same issue are using a variety of head units, both factory and aftermarket.

The fact that the location errors only occur during CarPlay shows the phone is getting erroneous location information.

Does your car have any GPS capability such that it might be sending your phone bad location or speed information?

Hi, I have a 2019 Ford Flex with the most up to date version of Sync 3 software. I have an iphone 7. Prior to the ios 12.2 update, Apple Maps and Google Maps both worked fine with Ford's Sync 3. After the update, the position of my vehicle within a given set of directions starts correct, but goes wrong once I make a turn or even if there is a bend in the road. When I unplug the phone USB from the vehicle and resume the directions on my phone, my vehicle position within both Apple Maps and Google Maps resumes being correct.

The same behavior occurs with my wife's iphone 7 plus. Vehicle position correct when not connected via USB to the vehicle. Vehicle position goes astray when connected via USB.

I have had a couple Flex's since the introduction of carplay and Android Car connect - no problems with Apple Maps and Google Maps.

I am trying to figure out how my vehicle position is correct when I am running Apple Maps or Google Maps purely on the phone, but when I connect to the vehicle, the vehicle position easily goes wrong. Given it is occurring on 2 different iphones with 2 different cords, with the same ios, I infer that the car has an undeclared GPS unit that would support navigation (which I did not get nav with this vehicle) and the latest ios is somehow sensitive to this undeclared/sort of deactivated GPS on the vehicle. have done all the system resets, network resets, delete and reinstall apple maps and google maps, anything that is not a forest fire to the car or the phones.

I asked the dealer to update the radio system (Jeep UConnect) to the newest version and the problem seems to have solved. The dealer may tell you there is no update though. I went back and forth between Jeep Customer Service and the dealer three times. The dealer knows nothing and keeps pushing me to contact Apple.

Sounds like the firmware update to the car is expecting data more frequently from the phone now. Being in a tunnel, the phone likely doesn’t have anything to send. There are significant changes to CarPlay in iOS13. I wonder if that is related to some change made to the car system firmware. Maybe install the iOS13 beta now or wait until it’s released in the falll and see if that resolves it.

Try using android phone, they have better gps signal reception and resolved the same problem for me. The android navigation works perfectly in my car, even though whenever I plug iPhone the problem still persists.

I bought a 2019 Jeep Cheeroke in Florida and moved to Georgia. I used CarPlay in Florida with no issue. As soon as I leave the state and plug in my CarPlay it still thinks I’m coming from Florida location. I even tried with an Android device in my car and it did the same thing. I downloaded iOS beta 13 and the issue cleared itself up. I had to go back to original iOS 12.4 cause it was draining my Apple watch battery terrible. Once back to iOS 12.4 battery watch last 2 days and gps is back acting funny.