GPS not accurate, any ideas

[DevilDogDMD]

I'm currently on a 500 mile road trip about 250 mi in. I noticed my GPS has me about 3 hours north from where I really am, not even close to the real location. This is messing with my ability to map out chargers. I have tried the double button reset and also power down and power back up and it is still off. Any ideas? Relying on ABRP for now.

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[chaosmarine92]

Multiple people here have been having this issue the last couple days with no solutions yet. For Some some people it seems to have fixed itself after a couple days. Given that it started happening all at once it's probably a software thing. Sorry there doesn't seem to be any definite solutions yet.

 

[Woodrick]

Try to make sure that it goes into a deep sleep this evening. That means no sentry mode, no charging. That solves a number of issues.

 

[DevilDogDMD]

Supercharging corrected it once I unplugged from the charge. I did so a power off as well but didn't notice that it helped.

 

[Fleetwood75]

Mine did that yesterday, but it was just the compass, not the latitude-longitude. So on the screen it had me on the correct street but pointing on the wrong direction of travel the whole time which was really throwing off the navigation.

 

[Woodrick]

Mine did that yesterday, but it was just the compass, not the latitude-longitude. So on the screen it had me on the correct street but pointing on the wrong direction of travel the whole time which was really throwing off the navigation.

Believe it or not, that it often fixed by driving in circles or figure eights. That allows most of the chips to calibrate.

 

[Fleetwood75]

Believe it or not, that it often fixed by driving in circles or figure eights. That allows most of the chips to calibrate.

How do I disable traction control so I can do donuts in the mall parking lot tonight?

 

[Zagnut]

I'm currently on a 500 mile road trip about 250 mi in. I noticed my GPS has me about 3 hours north from where I really am, not even close to the real location. This is messing with my ability to map out chargers. I have tried the double button reset and also power down and power back up and it is still off. Any ideas? Relying on ABRP for now.

Mine has been doing the same thing. It seemed to fix itself a few days ago, but, today it started again. Sadly, I was letting a friend drive who was interested in the truck and thinking of getting his own.

 

[Woodrick]

Mine has been doing the same thing. It seemed to fix itself a few days ago, but, today it started again. Sadly, I was letting a friend drive who was interested in the truck and thinking of getting his own.

This is a problem that has randomly appeared on some Tesla vehicles over the years, and it tends to fix itself.
It can be caused by parking for extended periods of times where the vehicles cannot hear the GPS signal. For example, underground garages.

GPS signals are not as accurate as many think, if you watch the raw output of a GPS, it can wander miles away. What happens is that there are post processing algorithms that determine the location. And in this case, since it is a mobile GPS it tends to fudge the output to stay on a road. So what has probably happened is that the fudge factor is off and it just has to figure it out.

 

[Ruffles]

This happened to my truck today. Has anyone gone into the service menu to reinstall their software?

 

[rudedawg78]

There is a weird fix for this that is posted on another thread.

Here you go: https://www.cybertruckownersclub.co...now-thinks-i’m-2-miles-away.18901/post-342353

 

[Stuck4ger]

This is a problem that has randomly appeared on some Tesla vehicles over the years, and it tends to fix itself.
It can be caused by parking for extended periods of times where the vehicles cannot hear the GPS signal. For example, underground garages.

GPS signals are not as accurate as many think, if you watch the raw output of a GPS, it can wander miles away. What happens is that there are post processing algorithms that determine the location. And in this case, since it is a mobile GPS it tends to fudge the output to stay on a road. So what has probably happened is that the fudge factor is off and it just has to figure it out.

Hmmm, I’m unsure what “many think” but GPS signals (even commercial without any augmentation or differential corrections) are actually pretty darn accurate (like within an easy football toss accurate). Unless there is actual GPS jamming/spoofing, if the car is displaying a big error, my call is that it’s not from the GPS but from some other software/hardware issue in the car.

 

[Woodrick]

Hmmm, I’m unsure what “many think” but GPS signals (even commercial without any augmentation or differential corrections) are actually pretty darn accurate (like within an easy football toss accurate). Unless there is actual GPS jamming/spoofing, if the car is displaying a big error, my call is that it’s not from the GPS but from some other software/hardware issue in the car.

Sorry, you are incorrect.

Take a standard GPS, definitely not one that has roads and turn it on and let it create a popcorn trail for a few days. If what you say is correct, then it should be easy to prove.

But let me tell you what will happen, you'll see it taking trips maybe over a mile away.

And no, not even the standard commercial ones say they are less than a foot, that's only for the expensive commercial ones used for surveying. Normal ones say about 15 ft.

So if they can wander that much, how does is know what road you are on? That's because after the GPS, there's a lot of computing providing pin-to-road functionality. (that's why you can't test with a GPS that has roads). The pin-to-road can eventually figure out what road you are on and what lane that you are in, semi-reliably.

But if you read through the different Tesla forums you'll see, especially in areas with square gridded roads, that the GPS can have you off by a street or two.

 

[Stuck4ger]

Sorry, you are incorrect.

Take a standard GPS, definitely not one that has roads and turn it on and let it create a popcorn trail for a few days. If what you say is correct, then it should be easy to prove.

But let me tell you what will happen, you'll see it taking trips maybe over a mile away.

And no, not even the standard commercial ones say they are less than a foot, that's only for the expensive commercial ones used for surveying. Normal ones say about 15 ft.

So if they can wander that much, how does is know what road you are on? That's because after the GPS, there's a lot of computing providing pin-to-road functionality. (that's why you can't test with a GPS that has roads). The pin-to-road can eventually figure out what road you are on and what lane that you are in, semi-reliably.

But if you read through the different Tesla forums you'll see, especially in areas with square gridded roads, that the GPS can have you off by a street or two.

I stand by my comment regarding GPS accuracy. Other issues such as multi-path and software integration are a different issue. The fact that CT owners are fixing their issues by cycling Sentry mode leads credence that it isn’t a GPS accuracy issue.

 

[bg002h]

Anyone have any suggestions for this situation: I have a short off road segment between the street and my back garage and the CT ride height drops to low from high because GPS isn’t accurate enough…I can’t set new locations for ride height to be high as the screen literally says “GPS accuracy too low.”

Now I realize the gps signal itself is very very weak and noisy, and it’s only through out of band data like maps and WiFi geolocations and cell towers and stuff like that that we are used to instant on, 3 meter accuracy or better GPS…but I’m literally less than 200 feet from the street where I have perfect location accuracy…is my hardware messed up?

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