Brand Certified
Intoxalock Ignition Interlock
3.7(20 reviews)
Certified by Intoxalock Ignition Interlock • May 17, 2026
Business Details
1901 Saint John Ave, Dyersburg, TN
38024, United States
Certified by Intoxalock Ignition Interlock • May 17, 2026
(731) 256-7401
Certified by Intoxalock Ignition Interlock • May 17, 2026
https://www.intoxalock.com/locations/tn/dyersburg/1901-saint-john-ave-5576
Certified by Intoxalock Ignition Interlock • May 17, 2026
About
Certified by Intoxalock Ignition Interlock • May 17, 2026
Car Inspection StationIntoxalock
Intoxalock is the no. 1 ignition interlock device brand in the U.S., and Intoxalock Ignition Interlock in Dyersburg, TN is here to help you get back on the road after a DUI.
Intoxalock has more locations than any other provider, and we can find an interlock installation location near you. We will help you understand TN interlock, or IID, laws and regulations. Our interlock installation locations are staffed with certified professionals who will install and service your car breathalyzers. For 30 years, Intoxalock has been a trusted interlock ignition device provider. Call now to talk to a TN expert.
Details
- Credit cardAvailable
- DebitAvailable
- Onsite servicesAvailable
Location
Certified by Intoxalock Ignition Interlock • May 17, 2026
Hours
Certified by Intoxalock Ignition Interlock • May 17, 2026
Monday8:00 AM - 5:00 PM
Tuesday8:00 AM - 5:00 PM
Wednesday8:00 AM - 5:00 PM
Thursday8:00 AM - 5:00 PM
Friday8:00 AM - 5:00 PM
Saturday9:00 AM - 12:00 PM
SundayClosed
Reviews
3.7
20 reviews
5 stars
12
4 stars0
3 stars
2
2 stars
1
1 star
5
- MJMary JohnsonMar 11, 20265.0Excellent customer service
- DIDana IncrocciFeb 26, 20261.0Today I got in my car with 0 alcohol in my system. My machine marked me at 0.021. I blew again. It was then 0.024. I blew again and it was 0.027. Then it said I missed a blow and gave me a violation. I am set to be done with this next week. Are you kidding me??
- KIKristopher InostrozaFeb 13, 20261.0Terrible experience
- TLThomas LayneFeb 6, 20261.0It registers invalid pressure/test results way too often and on two occasions has my bac at .10 when I just got off work and another time I was going to the store and my bac was.08 at either time had I had a drink. Maybe a higher rating if my device was more accurate, this one apparently has been used too much and needs to be upgraded
- BWBrittney WebbSep 15, 20255.0Great group of guys who installed in a timely manner and had me back on the road
Frequently Asked Questions About Intoxalock Ignition Interlock
How does an interlock device work?
An ignition interlock device (IID) is a small breathalyzer installed in your vehicle to prevent it from starting if alcohol is detected on your breath. Before driving, you'll blow into the device. If your breath alcohol concentration (BrAC) is below the programmed limit, the car starts. Periodic retests occur during your trip to ensure continued compliance. To read more on Intoxalock, you can read our ignition interlock device guide.
What is the cost of an ignition interlock device?
The installation of an ignition interlock device, often called a car breathalyzer, typically costs between $70 and $150. This one-time fee is paid at the start of your lease and covers the service center's labor to install the device in your vehicle. Payment is made directly to the service center at the time of installation. For more on cost breakdowns, you can read our cost of ignition interlock device guide.
How do I use my interlock device?
Using an IID is simple. To start your vehicle, blow into the device as directed. If the device detects no alcohol, your car will start. You may be prompted for "rolling retests" while driving, where you’ll blow into the device again to confirm compliance. How-to videos are also available on the Intoxalock mobile app.
Where do I get an ignition interlock device?
Ignition interlock devices can be installed at certified service centers nationwide. Intoxalock offers a convenient network of locations and helps you schedule an installation appointment near you. Visit our Intoxalock locations page or call us to find the nearest service center and begin the installation process.
How long will my installation take?
Installing an ignition interlock device typically takes 1-2 hours, depending on your vehicle type. Certified technicians ensure the device is properly installed and provide you with training on how to use it. Contact Intoxalock for an appointment and an accurate time estimate for your installation.
What happens if I fail a breath test on my ignition interlock device?
If you fail a breath test, your vehicle will not start, and the device will log the event. Depending on your state’s regulations, multiple failed tests may trigger additional penalties, such as lockouts or reporting to your monitoring authority. Intoxalock devices allow you to retest after a short wait if alcohol is no longer detected. Always follow your state’s guidelines to remain compliant.
Can I install an ignition interlock device in a vehicle I don’t own?
Yes, in most cases, you can install an ignition interlock device in a vehicle you regularly drive, even if you’re not the registered owner. However, the vehicle owner must provide consent for the installation. Intoxalock works with you and the owner to ensure compliance with state regulations and the successful setup of the device.
What should I do if my ignition interlock device locks me out?
If your ignition interlock device locks you out, it’s usually due to missed tests, failed tests, or state-specific requirements. Intoxalock offers a simple lockout override process in most cases to help you get back on the road quickly. Contact Intoxalock customer support for assistance and to understand the steps needed to resolve the issue.
What services does Intoxalock Ignition Interlock offer in Dyersburg, TN?
Intoxalock Ignition Interlock in Dyersburg, TN offers installation, calibration, and removal of ignition interlock devices (IIDs) to help you get back on the road after a DUI. Certified professionals staff the service centers to assist with all IID-related needs.
How does an ignition interlock device (IID) work?
An IID is a breathalyzer installed in your vehicle that prevents it from starting if alcohol is detected on your breath. You must blow into the device before driving; if the alcohol concentration is below the limit, the vehicle starts. Periodic retests occur during your trip to ensure compliance.
What are the costs associated with installing an ignition interlock device?
Installation typically costs between $70 and $150 as a one-time fee covering labor at the service center. Payment is made directly at installation. Additional costs may apply for leasing the device over time.
Where can I get an ignition interlock device installed near Dyersburg, TN?
You can have an IID installed at Intoxalock’s certified service center located at 1901 St John Avenue in Dyersburg, TN. Intoxalock has the most service centers nationwide and can help schedule an installation appointment near you.
What are the business hours for Intoxalock Ignition Interlock in Dyersburg?
The service center is open Monday to Friday from 8:00 AM to 5:00 PM, and on Saturdays from 9:00 AM to 12:00 PM. It is closed on Sundays. Online services are available 24 hours a day.
What payment options does Intoxalock accept?
Intoxalock accepts American Express, Discover, Mastercard, Visa, check, and offers financing options for your convenience.
What should I do if my ignition interlock device locks me out?
If locked out, usually due to missed or failed tests, contact Intoxalock customer support for assistance. They offer a lockout override process to get you back on the road quickly.
What nearby automotive service can assist me along with Intoxalock installations?
Start To Finish Automotive, located nearby, can help with automotive repairs, body work, and customizations, complementing Intoxalock’s ignition interlock installation services in Dyersburg.
Are there any dining options near Intoxalock Ignition Interlock in Dyersburg?
Yes, Sonic Drive-In and Jordan's Grab and Go are nearby fast food and restaurant options where you can grab a meal before or after your visit to Intoxalock.
What recreational venues are near Intoxalock Ignition Interlock for visitors looking to unwind?
Nearby recreational options include Thelma's Skateland, a roller skating rink and sports venue, and Pro Wrestling Mid South, offering gym and sports entertainment experiences.
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