gps units continually tried to pull me off the interstate onto local roads
especially those that run parallel to the interstate. ie: US 11
Also noticed when I stayed on the interstate, the unit would recalculate and the eta time would change to a faster time.
my question is how is the gps unit route based, local or interstate.
You can set your preferences on the GPS, such as
- Highway or no highway
- toll or no toll
- fastest time or shortest route
Go check the settings on your GPS. You probably accidently changed the settings at some time past.