Smart Start Ignition Interlock
First On Automotive5400 Glen Rose Hwy
Granbury, TX 76048
#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!
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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 First On Automotive in Granbury
Need an Ignition Interlock in Granbury? Get back on the road with Smart Start, Texas’s ultimate Ignition Interlock Device provider. We make your Ignition Interlock program simple, affordable and reliable with 24/7/365 customer service and easy, quick tests. You’ll receive hands-on training with our friendly, licensed technicians until you are comfortable testing with your Ignition Interlock.
We look forward to serving you! Smart Start Granbury, TX is located at First On Automotive off 5400 Glen Rose Hwy.
Call in today at (800) 831-3299 or fill out our online form to schedule your installation appointment. Be sure to ask about any current state specials or discounts!
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
Hood County Community Supervision
1202 W Pearl
Granbury, TX 76048
CLOSED – Opens at 8:00am Mo
Services at this Location:
Sign Up, Manage Account, Informational Videos
Johnson and Somervell Counties CSCD
104 Vine St
Glen Rose, TX 76043
CLOSED – Opens at 7:00am Mo
Services at this Location:
Sign Up, Manage Account, Informational Videos
Johnson and Somervell Counties CSCD
425 West Chambers St
Cleburne, TX 76033
CLOSED – Opens at 7:00am Mo
Services at this Location:
Sign Up, Manage Account, Informational Videos
See What Everyone Says About Our Ignition Interlock
Excellent TrustScore Rating
June 21, 2025
"Very friendly and easy to understand. "
Steven E.
United States
June 21, 2025
"Fue una persona amable y resolvió todas mi dudas "
Jose B.
United States
June 21, 2025
"The best customer service I've seen in awhile.
Erica was my advisor and was absolutely amazing and kind. She made the frustrating process go very smoothly and was very patient with me. I would recommend smart start to anyone who needs an interlock device because there customer service is above and beyond. She made everything right."
Jenene Stewart.
United States