Smart Start Ignition Interlock
Custom Car Center3107 S State Hwy 36
Gatesville, TX 76528
#1 Ignition Interlock from $1.99/day*. Same-day installation available
Services at this Location:
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!
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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 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.
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.
See What Everyone Says About Our Ignition Interlock
Excellent TrustScore Rating
July 10, 2025
"Terry was very informative and scheduled my appointment for the next day. I would recommend this Company to everyone."
Dave S.
United States
July 10, 2025
"Very helpful and explained everything fully, they make it easy for you to get started. "
David J.
United States
July 10, 2025
"Very helpful and courteous!"
Victor Hernandez.
United States