INSTALL YOUR LOW-COST IGNITION INTERLOCK AT THE SMART START GALLATIN, TENNESSEE SHOP! At Smart Start, we understand that one mistake does not make the human. Our goal is to work with you to get you back behind the wheel. Once we’ve installed your Smart Start IID, you’ll discover that you’re no longer alone in your interlock journey. Smart Start provides you with a team of kind, compassionate customer care advocates who seek only to help you make it through your program with ease. Our Customer Care Center is open 24/7 to address your questions, and our qualified service technicians are able to help service you and your vehicle at any of our many locations. Smart Start values your business by respecting your budget. No hidden fees here; just the cheapest Ignition Interlock Device in Sumner County!