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Fast-Track Your Installation

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Schedule an Interlock Installation in Nashville, TN

Ride with Smart Start
& get back on the road

Tennessee’s #1 Ignition Interlock Program
Low-price, with no hidden fees
Fast installation with same-day availability
24/7/365 Customer Care – Se habla Español

It only takes a moment to get your personalized quote.

Call Now! (800) 831-3299

Ignition Interlock in Nashville: We're Always Here for You

From $1.99/Day* - No Long-Term Contracts

Bi-weekly payment options designed to fit your budget.

Ignition interlock Costs

3,000+ Locations - Same Day Install

Quick installs by skilled technicians at convenient U.S. locations.

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Discreet, Easy-to-Use Devices

Reliable, hygienic devices with guided tests and easy English-Spanish switching.

Smart Start devices

24/7 Knowledgeable State Program Experts

Multilingual support trusted by over 1 million people, ready when you need us.

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Find Interlock Services Near You in Nashville, TN

Navigate the Music City roads with confidence. We have service centers located throughout Davidson County to ensure you’re never far from help when you need installation or service.

Sound Addictz

1252 Gallatin Pike S
Madison, TN 37115

CLOSED – Opens at 9:00am

View Store Information Schedule An Install
(732) 202-5098 Get Directions
David Hall Insurance Agency

214 Village Square
Ste 200-C
Pleasant View, TN 37146

CLOSED – Opens at 9:00am

View Store Information Schedule An Install
(615) 398-3030 Get Directions
Dozier DUI School

8011 Brooks Chapel Rd
Ste 982
Brentwood, TN 37024

CLOSED – Opens at 8:00am

View Store Information Schedule An Install
(615) 224-4499 Get Directions
Freedom Tint & Car Audio

510 North 2nd Street
Clarksville, TN 37040

CLOSED – Opens at 9:00am

View Store Information Schedule An Install
(833) 408-3196 Get Directions
Showtime Custom Auto

102 Skyline Circle
Dickson, TN 37055

CLOSED – Opens at 8:00am

View Store Information Schedule An Install
(833) 407-3490 Get Directions
Clarksville Electric Motor Service LLC

908 Max Court
Clarksville, TN 37043

CLOSED – Opens at 8:30am

View Store Information Schedule An Install
(931) 233-0333 Get Directions
Usry's Garage

9465 Lebanon Road
Mount Juliet, TN 37122

CLOSED – Opens at 8:00am

View Store Information Schedule An Install
(833) 408-3200 Get Directions
INTERLOCK XPRESS MURFREESBORO

918 Allen Ave
Murfreesboro, TN 37129

CLOSED – Opens at 9:00am

View Store Information Schedule An Install
(615) 989-3550 Get Directions
INTERLOCK XPRESS GALLATIN

1315 S WATER AVE
Gallatin, TN 37066

CLOSED – Opens at 9:00am

View Store Information Schedule An Install
(615) 989-3549 Get Directions
INTERLOCK XPRESS FRANKLIN

201 Beasley Dr
Suite I
Franklin, TN 37064

CLOSED – Opens at 9:00am

View Store Information Schedule An Install
(615) 989-3548 Get Directions
Interlock Xpress- Lebanon

201 E ADAMS AVE
Lebanon, TN 37087

CLOSED – Opens at 9:00am

View Store Information Schedule An Install
(615) 965-3233 Get Directions

An Affordable Interlock Device Solution in Nashville, TN

If you’re facing a DUI charge, your state alcohol monitoring authority might require you to install an Ignition Interlock Device (IID) on your vehicle. Also known as a “car breathalyzer” or “blow-and-go,” an IID prevents your vehicle from starting if the driver’s breath sample contains alcohol over a set limit. The alternative is often a suspended license and no ability to drive—so for many drivers, an IID is the clear choice for putting your DUI behind you.

Smart Start IIDs are designed to be discreet, reliable, and simple to use:

Low-profile design no bigger than your smartphone
Rigorously tested and calibrated to match your program requirements
User-friendly breath testing patterns make it easy to get going

(800) 831-3299

Support for Your Ignition Interlock Journey in Nashville

Nashville is a driving city, and losing your license can be a major hurdle. Smart Start offers the support you need to meet state requirements and get back behind the wheel. We handle the details so you don’t have to worry, with Program Advisors to answer your questions and skilled technicians to make sure your device is installed correctly and quickly.

The Best Customer Care

When you choose the cheapest Ignition Interlock Device, you’re choosing the 24/7 bilingual support of our Customer Care Center and the expertise of our local technician teams. Call (800) 831-3299 or complete the form at the top of this page to enlist Smart Start as your program partner. We’ll put the wheel back in your hands.

(800) 831-3299

Questions about Ignition Interlock Devices in Nashville, Tennessee

How do I get my IID calibrated in Nashville?

Calibration is required regularly to ensure your IID is working properly. In Nashville, we offer convenient service appointments to calibrate your device. The frequency of calibration is defined by Tennessee regulations. Generally, every 30-90 days.

Can I get same-day Interlock Device installation in Nashville?

Yes! Smart Start offers same-day installation appointments at many of our Nashville-area locations, subject to availability. We understand the urgency of meeting program deadlines, so we work to accommodate your schedule and get you back on the road as quickly as possible.

Where can I get an Ignition Interlock Device installed in Nashville, Tennessee?

Smart Start offers several convenient installation locations throughout Nashville and the surrounding areas. Our local service centers are staffed by experienced technicians who provide fast, professional installations. To find a location near you, visit our location finder or call our 24/7 Customer Care team for assistance.

How much does an Ignition Interlock Device cost in Nashville?

Smart Start offers affordable Ignition Interlock solutions in Nashville. See our Interlock Device cost guide for Tennessee to learn more.

How does an Ignition Interlock Device work?

An Ignition Interlock Device (IID) prevents a vehicle from starting if it detects alcohol on the driver’s breath. The driver blows into the device, and if their breath alcohol content is below the programmed limit, the car will start. You’ll also have to complete periodic retests after starting your vehicle to ensure continued compliance. Learn more about how IIDs work with our complete guide.

What are Tennessee’s IID laws?

In Tennessee, an Ignition Interlock Device (IID) may be required after a DUI. See our complete guide for information on IID laws and more in Tennessee.

See What Everyone Says About Our Ignition Interlock

Excellent TrustScore Rating

February 3, 2026

"Great service. Very helpful"

Zachary M.

United States

February 3, 2026

"Susan was great, really made the appt easy to figure out and was kind while doing it."

NATHAN G.

United States

February 3, 2026

"She was very professional and patient, she went above and beyond to help!"

Adam A. Gonzales.

United States

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