Smart Start Ignition Interlock
Smart Start of San Antonio – South1015 New Laredo Hwy
San Antonio, TX 78211
#1 Ignition Interlock from $1.99/day*. Same-day installation available
Services at this Location:
- Installations
- Calibrations
Book an Installation
With the thousands of locations across the nation, 24/7 customer support, no hidden fees and the most reliable device on the market, Smart Start Ignition Interlock devices are hands-down the best way to get you back on the road fast.
Get a quick and easy IID installation with Smart Start! Get started today!
¡Obtenga una instalación rápida y fácil de IID con Smart Start! ¡Empieza hoy mismo!
Why Choose Smart Start Ignition Interlock?
From $1.99/Day* - No Long-Term Contracts
Bi-weekly payment options designed to fit your budget.
IGNITION INTERLOCK COSTS3,000+ Locations - Same Day Install
Quick installs by skilled technicians at convenient U.S. locations.
FIND A LOCATIONDiscreet, Easy-to-Use Devices
Reliable, hygienic devices with guided tests and easy English-Spanish switching.
SMART START DEVICES24/7 Knowledgeable State Program Experts
Multilingual support trusted by over 1 million people, ready when you need us.
TALK TO A PROGRAM ADVISOR
#1 Ignition Interlock Device Provider at Smart Start of San Antonio - South in San Antonio
Smart Start is your No. 1 choice in San Antonio, Texas for the best Ignition Interlock Devices. We offer low costs, reliable service and a knowledgeable customer care team ready to answer your questions around the clock.
Schedule an Ignition Interlock installation appointment at Smart Start of San Antonio - South. You’ll get back on the road quickly with outstanding breathalyzer installation. The shop is conveniently located at 1015 New Laredo Highway, San Antonio, Texas.
It’s time to schedule your Ignition Interlock installation! Call (915) 304-5953 or fill out our online form. You can trust Smart Start to provide your Ignition Interlock service!
Look for other convenient Smart Start locations in San Antonio, Alamo Heights, Terrell Hills, or throughout Texas.
Frequently Asked Questions
The overall cost of an Ignition Interlock Device is a combination of installation fees, monthly service fees, and removal fees. Exact pricing varies by state. To get a quote today, call (800) 831-3299 to speak with a friendly Program Advisor.
Texas mandate dictates that you will need to service your Ignition Interlock Device (IID) once every 30-67 days as determined by your jurisdiction.
Once you have scheduled your Ignition Interlock Device (IID) installation with Smart Start, you will need to bring the following to your IID installation appointment:
- Two forms of photo identification
- Any and all court paperwork that has been given to you
- Proof of residence
- Car insurance and vehicle registration
If the vehicle is not yours, you will need to provide a letter of permission from the owner of the vehicle stating that you are allowed to install an Ignition Interlock Device.
In Texas, you can pay for your Interlock Device calibration via credit card at the Smart Start service center at the time of calibration or via the online Client Portal.
In Texas, any and all of the following may constitute a violation:
- Testing at or above the fail level of .030
- Skipping or failing a rolling re-test
- Missing your scheduled IID service appointment
Learn more about Interlock Device violations.
Texas state law dictates that you can service your Ignition Interlock Device at any Smart Start service center nationwide unless informed otherwise by your State authority. Find the nearest Smart Start service center here.
Nearby Locations
Bayeh Automotive
552 New Laredo Hwy
San Antonio, TX 78211
OPEN NOW – Closes at 6:00pm
Services at this Location:
Installations, Calibrations
CALIFORNIA KUSTOMS OF SA INC
1817 SW Military Dr
San Antonio, TX 78221
CLOSED – Opens at 9:00am Sa
Services at this Location:
Sign Up, Manage Account, Informational Videos
Go Getta Customs
1511 W Theo Ave
San Antonio, TX 78225
CLOSED – Opens at 10:00am Sa
Services at this Location:
Sign Up, Manage Account, Informational Videos
See What Everyone Says About Our Ignition Interlock
Excellent TrustScore Rating
January 9, 2026
"Tracy was a joy to work with, very helpful and understanding"
Robert Parker.
United States
January 9, 2026
"Agent was very helpful and friendly. Easy and quick service to get started."
James H.
United States
January 9, 2026
"Donny was great! He was patient with me and expressed a genuine desire to make me comfortable in an embarrassing and uncomfortable situation. He answered all my questions, and made sure without even a dollar he could get me set up in the system that I need to sign into. I literally used all my current money to get my truck out of impound of 3 days...$487.00. Sooo most grateful for a dollar lent.
Great customer service skills! "
Mitzy Berry.
United States








