GPS suddenly wrong?

[pr0t0c0l_dr01d]

Anybody else had their vehicle suddenly start showing up in the wrong place in the FordPass app? My car has appeared to be several miles east all day and it’s been in my driveway the whole time.

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[kirkus02]

it happens every now and then. I've had my MMe for about a year and it probably happened like 5 times.

 

[mkhuffman]

Same as Kirk. It has happened a couple times with me. Once I was driving home, and it showed me going off in into the forest and into a river, more than 30 miles away from where I was. Then it started going in circles through the river and the neighborhood around it.

Sometimes it thought I was on a 25 mph residential road, and my cruise control suddenly slowed down from 75 mph. I could almost predict when the car would jam on the brakes by looking at how my car was driving across streets and through houses.

I eventually turned off the cruise and now I don't even have cruise set to monitor the speed limit. I found the way the car responded to speed limit signs really annoying.

In the photo below, my car was actually on I95 South, where the white X is shown. BTW - it has not done that again - it was a one time occurrence.

 

[pr0t0c0l_dr01d]

In my case the only consequence is that the car ignored my charge percentage limit because it thought it wasn’t at my house.

 

[OWG]

Same as Kirk. It has happened a couple times with me. Once I was driving home, and it showed me going off in into the forest and into a river, more than 30 miles away from where I was. Then it started going in circles through the river and the neighborhood around it.

Sometimes it thought I was on a 25 mph residential road, and my cruise control suddenly slowed down from 75 mph. I could almost predict when the car would jam on the brakes by looking at how my car was driving across streets and through houses.

I eventually turned off the cruise and now I don't even have cruise set to monitor the speed limit. I found the way the car responded to speed limit signs really annoying.

Similar experience driving form Central Massachusetts to New Haven a week ago. Was using "Connected Navigation" with Blue Cruise with a sudden slowing with a 25 mph speed limit applied. After switching the center display back to "Connected Navigation" it was obvious that the displayed location had no relationship to reality. While it was amusing to watch the cursor float across a river we were not crossing, I rebooted the center stack from the steering wheel. After reboot we were properly geolocated.

 

[pr0t0c0l_dr01d]

@Ford Motor Company this sounds like a potentially serious problem.

 

[Darkenmage]

Yeah my ME is less than a month old and what it should have been a 40 min trip aorund town took 3 hours because the GPS lost its mind. Whats weird is I pulled Waze and it too lost its mind!??!!

ME's GPS never corrected itself even after a reboot but Waze finally did. But that was after a 2 hour fiasco!

That was very frustrating. when I finally pulled in outside my garage it was still wrong and had to do another reboot and FINALLY after like 5 reboots it finally corrected itself?!?!

 

[x19]

I notice this regularly with CarPlay and my phone, which of course uses the phone's GPS antenna rather than the car's. It's pretty good once it gets going, but the initial acquisition location can be really off and it can take a while to figure it out.

My theory is the acoustic glass, or some other glass coating, is impacting GPS signal strength in the vehicle. It's pretty frustrating.

 

[cdiv]

I notice this regularly with CarPlay and my phone, which of course uses the phone's GPS antenna rather than the car's.

Are you sure? CarPlay can provide GPS data to the phone. Supposedly Apple requires this for wireless carplay and it's optional for wired, but I can't find any confirmation of that with a quick search.

 

[x19]

Are you sure? CarPlay can provide GPS data to the phone. Supposedly Apple requires this for wireless carplay and it's optional for wired, but I can't find any confirmation of that with a quick search.

huh, I had no idea. I’ll have to check the built in GPS to see if it has the same problem.

 

[ChasingCoral]

Yes and there are many threads on this already.

 

[AZBill]

I have had this happen several times. CarPlay and Apple Maps work just fine when the car GPS goes bad, so I am positive it is not using the signal from the car, at least not when this failure occurs.

I have also pulled over when this happens and checked the satellite signals under the nav screen settings, there are no signals received, so the GPS on the nav screen goes into "dead reckoning". This is why I believe iPhone stops using car provided GPS, it not longer exists.

This causes incorrect home charging, loss of BlueCruise, and incorrect speed limits on the driver display, as well as wild rides with adaptive cruise control when speed signs go to 5 mph while driving on the freeway. Ford should fix their software so that it disables all this when GPS is lost and then provide a message to the driver.

As far as Ford Pass location goes, it just provides the location the car was at the last time GPS was working. I once had it showing 120 miles away. My car was at home and charging to 100%, ignoring my 80% target charge. There are many threads with this complaint.

 

[scubagarth]

This causes incorrect home charging, loss of BlueCruise

This is the critical part. I need my vehicle to know when it’s home, so that it charges at the right time and to the right %. And having BlueCruise work one day, and then on the same road to not work on the next day, is very annoying. Having to constantly reboot the Sync system is not a fix, it’s a terrible workaround.

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