Smart Start Ignition Interlock

Custom Car Center

3107 S State Hwy 36
Gatesville, TX 76528

#1 Ignition Interlock from $1.99/day

No Long Term Contracts

Same-day installation available

Or call (800) 831-3299

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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!

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Interested in an IID ASAP (within 7 days)

I eventually need an IID (in MORE than 7 days)

I am a current customer and need customer service

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I consent to 1A Smart Start LLC and/or its franchisees' reaching out to me multiple times on an ongoing basis using telephone, text and/or email, including autodialed and prerecorded calls and texts, about our products, services, promotions, and other offers. This consent is not required to purchase goods or services. To opt-out of text messages reply "STOP", and to opt-out of emails click the unsubscribe link in the email. For texts, text "HELP" for help.

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By providing my information and clicking “Book Your Install Now,” I authorize [Insert Legal Name of Franchisee, distributor, or affiliate] to contact me at the phone number above via phone and/or text using multiple and periodic autodialed and prerecorded calls and texts for marketing purposes. Not a condition for purchase. Message and data rates may apply. To opt-out of texts, reply “STOP”.

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Fast-Track Your Installation

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Or Call (800) 831-3299 Now!

¡O llame ahora al (800) 831-3299!

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 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.

TALK TO A PROGRAM ADVISOR

#1 Ignition Interlock Device Provider at Custom Car Center in Gatesville

Smart Start is your go-to Ignition Interlock device installation service center in Custom Car Center, right off TX-36 Highway. Why choose Smart Start?

Our SSI-20/30™ is discreet, sleek, and fits right in the palm of your hand. Smart Start's customer care center is available 24/7/365, including weekends and holidays.

Call today to schedule your installation appointment at (800) 831-3299 or fill out our quick and easy online form. Look for other convenient Smart Start locations in Gatesville, Hewitt, Waco, or throughout Texas.

(800) 831-3299

Frequently Asked Questions

How much does an Ignition Interlock Device cost in Texas? What are the fees?

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.

How often does my IID need to be serviced in Texas?

Texas mandate dictates that you will need to service your Ignition Interlock Device (IID) once every 30-67 days as determined by your jurisdiction.

What do I need to bring to my installation in Gatesville?

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.

How can I pay for calibration?

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.

What constitutes a violation in Texas?

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.

Where can I go for service? Anywhere, or just within my state?

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.

See What Everyone Says About Our Ignition Interlock

Excellent TrustScore Rating

March 14, 2026

"Great customer service; thoroughly explained, repeated, and ensured I understood every step throughout the process"

Leonard A.

United States

March 14, 2026

"Fast and easy"

Shane J.

United States

March 14, 2026

"Very nice helpful understanding to the point willing to help you do what you need to do making the experience a breeze She's Awesome 🤟😄🤘 ⭐⭐⭐⭐⭐ Thank you Rahsheen Green for being amazing "

Benjamin O.

United States