From the home screen, scroll down to the extended app list, select Map > > Map Setup > Advanced Setup.

Auto Zoom

Automatically selects the zoom level for optimal use of the map. When disabled, you must zoom in or out manually.

Detail

Sets the amount of detail shown on the map. Showing more detail may cause the map to redraw more slowly.

Shaded Relief

Shows or hides relief shading for a three-dimensional view of the map topography.

Vehicle

Changes the icon that represents your position on the map.

Zoom Levels

Adjusts the zoom level at which map items will appear. The map items will not appear when the map zoom level is higher than the selected level.

Text Size

Sets the text size for map items, such as labels and waypoints.