Exit Number Changes in Massachusetts

Garmin is aware that the Massachusetts Department of Transportation (MassDot) is converting all exit numbers on freeways to a milepost-based numbering system, per Federal Highway Administration (FHWA) requirement.  We are working with our map provider to update this information as they receive it from the state of Massachusetts and will incorporate the data into future Map Updates.  Always defer to posted road signs on Massachusetts highways when using a Garmin motor vehicle navigation aid.

Note: City Navigator North America map version 2023.10 (for Personal Navigation Device's only) added the majority of the updated exit numbers.  Future map updates (for both PND's and In-Dash products) will continue to add updated exit numbers as they are made available. 

For instructions on checking for map updates and installing the update, go to the Support Center and enter the product name or the serial number of your device. Once your device is selected, select Other and search for “Updating Automotive Maps and Software with Garmin Express ”.

To report any missing updated exit numbers after updating the maps to version 2023.10, see Reporting Map Errors on Automotive Devices.

For more information, see https://www.mass.gov/info-details/statewide-exit-renumbering-project-details