On screen floating speedometer incorrect in car

[MrT]

When connected to my Ford system the floating speedometer display on my phone screen gives incorrect information but works when not connected. Any ideas?
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Drivelux

[Kremmen]

When connected, or not, is the phone in the same position ?
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DashCam:
Viofo A119 V3

[MrT]

Yes, it's in a dashboard holder. The average speed showing is probably correct but the actual speed shows between 2 and 9mph whether stationary or moving at speed.
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Drivelux

[Kremmen]

The only other thing I can think of is that some phone/car combinations have to be tweaked between using the car or phone GPS

This is assuming your car has built in GPS
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DashCam:
Viofo A119 V3

[MrT]

I cannot see any specific GPS settings to tweak, all the backgrounds and permissions see correct. It happens on more than one phone.

There is a former topic down the page in this group on the speed being incorrect when connected to Android Auto which could be similar to my issue but this topic gives a database error when I try to read it.
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Drivelux

[Kremmen]

I'm clutching at straws now

Could it be the Ford heated windscreen blocking GPS ?
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DashCam:
Viofo A119 V3

[MaFt]

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