Certified by Intoxalock Ignition Interlock • Oct 11, 2026
Car Inspection StationIntoxalock
Intoxalock is the no. 1 ignition interlock device brand in the U.S., and Intoxalock Ignition Interlock in Oak Ridge, 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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Certified by Intoxalock Ignition Interlock • Oct 11, 2026
Certified by Intoxalock Ignition Interlock • Oct 11, 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
Saturday8:00 AM - 5:00 PM
Sunday8:00 AM - 5:00 PM
Reviews
3.6
12 reviews
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1 star
3
JP
Jack Powers
6 days ago
5.0
Excellent service!
KH
Kiley Harkins
Sep 21, 2026
1.0
Let me start by saying this device is for my fiancé and it is in a multi family used car. This company is an absolute scam! First off I was sent to a dumpy garage that literally looks like someone cooks meth out of a camper in the back. I showed up for my 8am appointment and he says your box isn’t going to be here until after 11am. So I have to reschedule appointment for next day because I have kids in school.
Come back next day, get it i stalled. No instructions given except you blow, suck, blow. I paid $246.94 to have this obnoxiously large hunk of plastic on a tube stuck in my car and the mouth piece you blow in falls off literally every time you pick it up. I was told by Intoxalock that it gives you a count down of 3-6 minutes when it asks for a rolling retest while you are driving. ABSOLUTE AND COMPLETE LIE!!!!! When it gives 2 beeps and says blow, you better do it! Or it signals that you missed a test and then immediately tries to make you do it again, no count down, no safety!
So I call to get the thing taken into the garage believing after what Intoxalock told me that they installed it wrong or the device was faulty and Intoxalock suggested I take it in & customer service even tells me it should give me a count down. Intoxalock calls 4 separate occasions on 2 separate days and cannot get anyone at the installers garage to answer the phone!!! So as if this isn’t a nightmare enough, now the place where I am supposed to go back to each month to calibrate isn’t answering.
Intoxalock sends me to a new garage about 10-15 min away to get the check up done and tells me if they find something wrong with the install they pay for it but if not then it’s on me! I go and the lovely gentleman tells me straight up that none of the Intoxalock devices have ever given a countdown for rolling retests. He decides not to charge me for the trouble I have been through. He also told me that he can’t count the number of times he has had complaints about that “garage” that Intoxalock sends people to for calibrations because they don’t show up for calibration appointments and leave to go do tows during scheduled appointments, overcharge for services or just straight up don’t answer the phone.
After leaving a nasty complaint Intoxalock calls to try to remedy things with me and want to give me a credit on my account for all of my trouble… here’s where it gets even better, I didn’t even realize I had a bill besides the $57.99 every 2 weeks for the calibrations. They tell me they are wiping my bill of $158.04 off. So then I have to ask why do I have that kind of bill and they go in to telling me about an overnight fee of $40 for my device, a state tax fee from FL $12.00 and a state for $9.38 tax fee from $TN, a TN county fee of $3.68, a setup fee of $32.91 (set up fee for who????) and a fee for insuring the box even though if you get in an accident with insurance you still pay over $200 for a replacement?!?!? So I am absolutely mind blown by the lengths this company will go to swindle people in fees.
Which brings me to my car not being able to start because of the heat. I go out to my car, I blow over and over & it keeps reading cant calibrate sample. Mind you, i have to get my 2 kids in the car to go pick up my 3rd from school and it’s doing this to me. I call intoxalock freaking out & they tell me the device got too hot& try to get me to disconnect my battery! I tell then i know that causes a violation and im not doing that and they say theres nothing they can do. They tell me i can call a garage and get it towed at my own cost or next time wrap a towel around the device so it doesn’t over heat… What?!?! You guys make millions of dollars & you gave me faulty crap equipment that can overheat or freeze and cause me to not drive my car! Where is the money we all pay going because it certainly is not going to ensure after clients are doing everything they can to stay compliant that you do your due diligence to be sure they have a competent product! I am ready to get this removed and go with another company!
MJ
Matthew Joefreda
Sep 3, 2026
3.0
Felt supported through a very rough process of getting my license back! There’s a lot of misinformation out there and they could do a better job at informing the customer about the equipment. And definitely you need to do your research on who they are referring you to because not all shops are reputable! But overall they were supportive if you had any issues!
SH
Scott Hedrick
Jun 18, 2026
5.0
My experience with A Tow was positive, they inspected my car in a timely manner. They were polite and professional.
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 Oak Ridge, TN provide?
Intoxalock Ignition Interlock in Oak Ridge specializes in installation, calibration, and removal of ignition interlock devices (IIDs) to help customers comply with DUI regulations.
How does an ignition interlock device (IID) work?
An IID is a breathalyzer installed in your vehicle that prevents the engine from starting if it detects alcohol on your breath, including periodic retests while driving.
How much does it cost to install an ignition interlock device?
Installation costs typically range from $70 to $150, covering labor at the service center, paid at installation start.
Where can I get an ignition interlock device installed near Oak Ridge?
You can schedule an installation appointment at the Intoxalock Ignition Interlock service center located at 133 Tulsa Road, Oak Ridge, TN.
What are the business hours for Intoxalock Ignition Interlock in Oak Ridge?
The service center is open daily from 8:00 AM to 5:00 PM.
What should I do if my ignition interlock device locks me out?
Contact Intoxalock customer support for assistance with lockout overrides due to missed or failed tests.
Can an ignition interlock device be installed in a vehicle I don't own?
Yes, with the vehicle owner's consent, Intoxalock can install an IID in a vehicle you regularly drive.
How can nearby hotels like Hampton by Hilton and Holiday Inn Express help customers visiting Intoxalock?
Customers traveling to Intoxalock for installation appointments can stay conveniently at nearby hotels such as Hampton by Hilton or Holiday Inn Express for easy access and comfort.
What nearby transportation services can assist customers visiting Intoxalock?
Nearby services like A-Tow provide towing and emergency roadside assistance, and U-Haul Neighborhood Dealer offers truck rentals, helping customers with vehicle or transportation needs.
Are there local attractions near Intoxalock Ignition Interlock where customers can spend time?
Yes, customers can visit the Atomic Energy Museum or enjoy entertainment at Oak Ridge Bowling Center when visiting the area.
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