The symbols in a style have names. If your features have values that match these names, you can automatically associate a particular symbol with each matching feature. If your features use a different set of names, you can edit the names in the style to match them.

Right-click Vehicles layer in the Table of Contents and click Open Attribute Table. In the Attribute table window, notice the Model column. Each vehicle type listed corresponds to a symbol with the same name. Close the Attribute table. Double-click the Vehicles layer to open the Layer Properties dialog box. Click the Symbology tab. Click Match to symbols in a style, under Categories. Click the Value Field drop-down arrow and choose MODEL. Click Browse to navigate to the 3D Vehicles.style file in the ArcGIS\Styles folder. Match to symbols in Style will now be populated with this style file. Click Match Symbols.

This adds all unique values that have a matching symbol in the style. Alternatively, by clicking Add Values you can manually specify which unique values to display. You can also manually edit a label if you would like more descriptive labels to appear in the legend and the Table of Contents. This does not change the name in the attribute table.

Click the Advanced button and click Rotation. Click Rotate Points by Angle in this field from the dropdown list and click Angle. Click OK. Click OK again to close the Layer Properties dialog box.