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backman_z · 08-20-2010, 10:12 AM

Help me.

I have a Garmon GPS. No matter what car I drive (we have a Boxster, Jeep Libertry and Toyota Sienna), the GPS speed is always 2-3 miles per hour slower that the speedometer.

08-20-2010, 10:12 AM	#1
backman_z Registered User Join Date: Feb 2010 Location: Central PA Posts: 49	GPS Question Help me. I have a Garmon GPS. No matter what car I drive (we have a Boxster, Jeep Libertry and Toyota Sienna), the GPS speed is always 2-3 miles per hour slower that the speedometer.