1WelcomeThank you for choosing the Garmin StreetPilot III. The StreetPilot III offers true turn-by-turnnavigation with its auto-routing feature. At the touch of a button, you now have access to the shortestand fastest routes, turn directions, and estimated time of arrival at your intended destination. Alongthe way, the StreetPilot III provides automated voice prompts, alerting you to necessary turns, distanceto upcoming turns, route deviation, and distance to the final destination.The StreetPilot III is compact and portable. This dash-mounted unit can be operated by yourvehicle’s battery using the included 12-volt power adapter, or by six AA batteries. Voice commandsare clearly heard through a speaker which is built into the power adapter cable. The StreetPilot III caneasily be viewed in any lighting condition, due to its 4-inch, high resolution, 16-color display. Theunit’s built-in basemap provides detail for interstates, interstate exit data, highways, rivers and lakes,plus commonly used streets in metropolitan areas. With the press of a button, the built-in basemapwill provide turn-by-turn guidance to a destination via interstates and highways. When a card withMapSource City Navigator maps is in the unit, the StreetPilot III provides turn-by-turn guidance downto residential street-level detail.About This ManualMake sure you take the time to read the Quick Reference Guide first to get acquainted with thebasic features of the StreetPilot III. After you have read the Quick Reference Guide, you can readthrough this owner’s manual in order to understand the operating features of the StreetPilot III indetail. This manual is organized into three sections for your convenience. The Introduction Sectionprovides FCC and safety information and the table of contents. The Reference Section providesdetails about all of the features of the StreetPilot III, organized by topic. The Appendices contain bothinformation on items such as accessories and specifications, and an index organized by subject.IntroductionWelcomeThe StreetPilot III uses GPS technology in order to findyour precise location. GPS stands for Global PositioningSystem, a group of 24 satellites, circling the earthtwice a day, at an altitude of about 12,000 miles. Thesatellites transmit very low power radio signals contain-ing position and time information, allowing anyonewith a GPS receiver to determine their location on theearth within 100 meters or better. For more detailedinformation regarding GPS, we have prepared a bookletcalled “GPS Guide for Beginners” which is available toyou from our web site at www.garmin.com.