Ignition interlock device installations usually take 1-2 hours at your local Official Intoxalock Location, depending on the make and model of your vehicle. You can either wait for the installation to be complete in a waiting area or can drop off your vehicle for pick-up later.
Brand Certified
Intoxalock Ignition Interlock
4.2(65 reviews)
Certified by Intoxalock Ignition Interlock • Aug 16, 2026
Business Details
5915 Lee Hwy, Chattanooga, TN
37421, United States
Certified by Intoxalock Ignition Interlock • Aug 16, 2026
(423) 800-5487
Certified by Intoxalock Ignition Interlock • Aug 16, 2026
https://www.intoxalock.com/locations/tn/chattanooga/5915-lee-hwy-3369
Certified by Intoxalock Ignition Interlock • Aug 16, 2026
About
Certified by Intoxalock Ignition Interlock • Aug 16, 2026
Car Inspection StationIntoxalock
Intoxalock is the no. 1 ignition interlock device brand in the U.S., and Intoxalock Ignition Interlock in Chattanooga, 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.
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- Credit cardAvailable
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Location
Certified by Intoxalock Ignition Interlock • Aug 16, 2026
Hours
Certified by Intoxalock Ignition Interlock • Aug 16, 2026
Monday8:30 AM - 5:00 PM
Tuesday8:30 AM - 5:00 PM
Wednesday8:30 AM - 5:00 PM
Thursday8:30 AM - 5:00 PM
Friday8:30 AM - 5:00 PM
Saturday8:30 AM - 1:00 PM
SundayClosed
Products & Services
1 list · 3 items
Reviews
4.2
65 reviews
5 stars
46
4 stars
6
3 stars
2
2 stars0
1 star
11
- AHashley higdon5 days ago1.0not radio clinic i’m referring to the company who referred me there aka INTOXALOCK. WORST COMPANY EVER! they reached out to me and scammed me into thinking i needed this interlock device when i actually don’t. the TN DMV said it was clearly a scam seeing as how THEY called me. DELVIN told me over and over that i needed it then sent me over to radio clinic to pay $200 then when i finished i was being scammed i called back and all the representatives including the “supervisor” carla literally laughed in my face and basically told me had i been more careful this wouldn’t have happened! i asked for her supervisor in which she told me she was the highest there and did not have a supervisor or an HR department like WHAT? they refused to refund me and also refused to pay the $75 i have to pay to get this useless device removed. the customer service is terrible do not mess with this company if i could give them 0 stars i would RADIO CLINIC HAS BEEN NOTHING BUT WONDERFUL
- JFJeff FuzzardAug 6, 20261.0Complete scam. I've been stuck with this thing for almost 2 years because their systems went down or I had bad readings. "Customer service" is a joke.
- JGJoshua GoffJul 3, 20261.0Why do you continue my services AFTER I was passex in the timeframe set by the court. For financial reasons... I had to keep paying rent, rather than removal. You have, twuce, since then, held me in uncompliance...and forced me to extend my service.... 2 YEARS past my time, and after my first compliance letter. Im going to sue you over this. This company is a complete fraud!
- BMBob MulreadyMay 7, 20265.0Chris and Mike at Radio Clinic were outstanding. Great customer service and a lot of patience with us. Thank you, Bob
- AAAshleyApr 15, 20265.0Thankful I went to these guys. They are very knowledgeable on the Ignition Interlock system.
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 in Chattanooga offer?
They provide installation, calibration, and removal of ignition interlock devices (IIDs) to help you comply with DUI regulations.
How does an ignition interlock device work?
An IID is a breathalyzer installed in your vehicle that prevents it from starting if alcohol is detected. You must blow into the device before starting and during driving to ensure compliance.
What are the costs for installing an ignition interlock device?
Installation fees typically range from $70 to $150 and are a one-time payment made at the start of your lease, covering labor at the service center.
Where can I get an ignition interlock device installed near Chattanooga, TN?
Intoxalock has over 5,000 service centers nationwide, including a location at 5915 Lee Hwy, Chattanooga, TN, staffed by certified professionals.
What are the operating hours for the Intoxalock service center in Chattanooga?
The service center is open Monday to Friday from 8:30 AM to 5:00 PM and Saturday 8:30 AM to 1:00 PM, closed on Sundays. Online services are available 24/7.
What should I do if my ignition interlock device locks me out?
Contact Intoxalock customer support for assistance with lockout overrides and resolving issues such as missed or failed breath tests.
What nearby locations can I visit around Intoxalock Ignition Interlock in Chattanooga?
Nearby you can visit The Radio Clinic for car stereo needs, IMAGES Night Club for entertainment, and NAPA Auto Parts for automotive supplies.
How can The Radio Clinic near Intoxalock help customers?
The Radio Clinic provides car stereo equipment and automotive accessories, complementing your visit to Intoxalock with additional automotive products.
Which automotive service providers are close to Intoxalock Ignition Interlock?
Nearby automotive services include Ultimate Sounds & Tinting for window tinting, Fastech Auto Service for repairs, and Economy Honda Superstore for car sales and parts.
What payment options does Intoxalock accept for ignition interlock services?
They accept American Express, Check, Discover, Financing, MasterCard, and Visa for payments.
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