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2 votes
Accepted

"Automatic" GPS clock won't update to correct time - 2007 Honda Odyssey

World wide issue due to bad coding of the gps system. It happened on Jan 1, 2022. It will reset itself, mostly, on August 17, 2022. All will work again after that date except for the auto DST ...
  • 36
2 votes

I bought a car and suspect that it was sold to me with a tracking device installed I want to find it

Almost always, the gps units (generally they are installed by loan companies for recovery purposes) are located under/behind the dash near the steering column area. Remove the paneling if any and then ...
  • 3,315
2 votes

SD card map for 2011 Nissan Rogue

I own a 2011 Rogue. You have to buy the upgraded sd card everytime you want to update the maps. If you buy the $149 one from Nissan parts they will send you the most recent year. The system does not ...
  • 21
1 vote
Accepted

Car OBD protocol?

I don't have the answer myself, but I may have a way for you to figure it out. I found this page which talks about what is needed for each of the protocols. You may be able to reverse engineer what ...
1 vote

Dodge Journey Crew GPS activation

Looks like it's a purchase item: Look Here Personally, if it were me, I'd mount my smart phone on the dash and use it. The ones which come with the vehicles become out of date, then you need to ...
1 vote

Something in car is interfering with iPhone GPS

Yes it is possible. If something in the car is generating interference in the 1.5 GHz band then it can easily block the very faint signals from GPS satellites. What could be doing this is another ...
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1 vote

Are there any vehicles that use the onboard GPS to calibrate or adjust the speedometer?

No. The reason the speedometer is slightly out on just about every car is that they could get sued if the speedo says 60 and you were clocked doing 61 or something. So, what manufacturers do is make ...
1 vote

Are there any vehicles that use the onboard GPS to calibrate or adjust the speedometer?

This sounds like something that would be used in a fighter jet to correct the drift of the onboard INS, but there's no need for such an accuracy in a land vehicle; also, the speedometer doesn't ...
  • 948
1 vote

Are there any vehicles that use the onboard GPS to calibrate or adjust the speedometer?

I have a vague recollection of watching Clarkson driving a concept car, a 4x4, in the desert somewhere on an episode of Top Gear many years ago. I can't remember the manufacturer but have a sneaking ...
1 vote

Are there any vehicles that use the onboard GPS to calibrate or adjust the speedometer?

in my experience you are correct, no manufacture that i have seen so far updates speedometer accuracy via GPS. it would be a good idea however, wheel speed sensors are fairly accurate but with tire ...
  • 146
1 vote
Accepted

Are there any vehicles that use the onboard GPS to calibrate or adjust the speedometer?

that is a good idea, but in my experience no. the speedometer is usually driven by wheel speed sensors (newer vehicles) or mechanical cable driven by the transmission (older vehicles). depending on ...
  • 146
1 vote

2007 Toyota Highlander GPS Navigation map no longer works

Pretty vague question, so this is a pretty vague answer. Having gotten wet, there could be nearly anything wrong. You are going to have to go thru the entire navigation system, component by ...
  • 9,035
1 vote

How do I get wheel tick info from vehicle?

If the GPS module wants wheel tick info, it probably does not know the wheel size and thus compares the wheel ticks to speed obtained from satellite signals to calculate the wheel size. So, if this is ...
  • 13.9k
1 vote

How to disable tracking/beacon on kia soul ev?

Just looked up the update process for UVO and based on the size of the update, it does look like its running right from that SD card: https://www.myuvo.com/support/avn40plus_sop/software-update/...
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