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Schedule an Interlock Installation in San Antonio, TX

Ride with Smart Start
& get back on the road

 

  • The leading Ignition Interlock Program in Texas
  • Low-price, with no hidden fees
  • Fast installation with same-day available
  • 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 San Antonio: We're Always Here for You

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

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

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

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

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 San Antonio

With service centers throughout San Antonio, we make it easy to install and service your Ignition Interlock Device.

Interlock Device

Reliable Ignition Interlock Devices for San Antonio Residents

If you’re facing a DUI charge, your state 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

Navigating Ignition Interlock Requirements in San Antonio

Life is tough without a driver’s license in San Antonio. In this car-oriented city, it’s hard to get to work, school, and other necessities if you can’t drive—never mind fun events like Fiesta or gorgeous spots like the Guadalupe River. Our Program Advisors are here to help you regain your driving privileges while meeting all court requirements with professional, non-judgmental service.

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 San Antonio, Texas

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

Yes! Smart Start offers same-day installation appointments at many of our San Antonio-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.

Smart Start offers several convenient installation locations throughout San Antonio 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.

Smart Start offers affordable Ignition Interlock solutions in San Antonio. See our Interlock Device cost guide for Texas to learn more.

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.

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

Smart Start ignition interlock device

See What Everyone Says About Our Ignition Interlock

Excellent TrustScore Rating
#1 Customer Rated 4.7 out of 5
February 4, 2026
"Great job team Trina/representative made the transaction easy and pain free/lots of assurance Telephone prompts took out alot of worries/questions Made decision making very easy Cant thank youll enough Feel i made the "smart" choice "
Fb6nocrustninja.
United States
February 4, 2026
"Susan was outstanding very helpful and joy to speak with"
Teondra S.
United States
February 3, 2026
"Erica was really awesome!!!!! I wish more customer service people were more like her. she went above and beyond trying to get the answer them for me. She was kind and nice but you don't get much anymore she was very thorough and what she did to make sure everything was correct and right I think she should get a raise and be promoted. we need more people like her in the world!!!!!!ps ....she knows her job very well!!! Thanks again Erica "
Ashley Sandridge.
United States
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