Michael8780
Active Member
This makes sense but just to be clear my GPS app on my phone shows that I'm doing 65 but my truck Says 62. But I'll give these instructions a shot as wellIt has been reported that if the phone has a connection to the truck, it will show the speed reported by the truck and not the speed being measured by the app.
A standalone GPS unit is probably the best way to test. Using the mile markers on the side of the freeway is another option. Look for one of those radar signs they deploy in school neighborhoods or construction areas.
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