I recently purchased the Garmin Dezl 560. We planned on driving I-75 through Atlanta, Ga. The GPS keep telling that trucks are not allowed to drive though Atlanta using I-75. I had the GPS set for a RV which is allowed to use I75 through Atlanta. Every few minutes it kept telling to get off at some exit and I could not get the proper lanes to use. It looks like their is nothing different between the RV and Truck routing.
Don