GPS speed on the NAV map screen

[nickpike]

Hi, I have asked this before but was wondering if anyone can offer an update.
I know some of you clever people can access the engineering pages. Is it possible to turn on a GPS speed anywhere in the vehicle, say, on the NAV screen?
All the three speeds shown (gauge, HUD and LCD screen between the gauges) show the gauge speed that is typically 5-10% lower than the true speed. They all read the same, incidentally. I miss not having GPS speed and using my Garmin unit seems a bit of a nonsense when the car has its own system.

 

[Nikgen]

Hi, I have asked this before but was wondering if anyone can offer an update.
I know some of you clever people can access the engineering pages. Is it possible to turn on a GPS speed anywhere in the vehicle, say, on the NAV screen?
All the three speeds shown (gauge, HUD and LCD screen between the gauges) show the gauge speed that is typically 5-10% lower than the true speed. They all read the same, incidentally. I miss not having GPS speed and using my Garmin unit seems a bit of a nonsense when the car has its own system.

Don't have an answer for your request, but my car pretty much matches the GPS speed readout on my phone running Waze. Usually it's a dead on match, but it's never more than 1-2 mph off at speeds of 75+ mph - so much less than the 5-10% off you are finding?

 

[nickpike]

much less than the 5-10% off you are finding?

Sorry, I should have emphasised this is a car for the UK market, and specs more than likely vary when compared to USA specs. I've always found during my motoring life (47 years) that speedo readings were always low by about the same percentage.

 

[tmf2004]

you can have the MPH on the Nav screen?

 

[Nikgen]

you can have the MPH on the Nav screen?

No - that's what the OP was asking...