Intoxalock is the no. 1 ignition interlock device brand in the U.S., and Intoxalock Ignition Interlock in Cookeville, 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.
Wonderful at explaining all details and left me very comfortable with all I needed to do and know about the Intoxalock system. Great Service!!!!
CJ
Captain Jack
Oct 2, 2025
5.0
They were very friendly people and very helpful. They even help me understand the machine they put in my car and make sure I knew how to use it before I left.
SS
Samantha Sims
Jan 9, 2025
5.0
Always very simple fast and super nice they have been awesome I highly recommend
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 Cookeville, TN provide?
We provide installation, calibration, and removal services for ignition interlock devices (IIDs) with certified professionals to help you comply with state regulations and get back on the road after a DUI.
How does an ignition interlock device (IID) work?
An IID is a small breathalyzer installed in your vehicle that prevents starting if alcohol is detected on your breath. You blow into the device before driving, and periodic retests occur during your trip to ensure compliance.
Where can I get an ignition interlock device installed near Cookeville?
Intoxalock has over 5,000 certified service centers nationwide, including the Cookeville location at 2075 Fountain Circle, TN, where you can schedule an appointment to install your IID.
What are the business hours for Intoxalock Ignition Interlock in Cookeville?
The Cookeville service center is open Monday through Friday from 8:00 AM to 5:00 PM, and online service is available 24/7 every day.
What payment options are accepted at Intoxalock Ignition Interlock?
We accept American Express, Visa, MasterCard, Discover, payments by check, and also offer financing options.
How long does the installation of an ignition interlock device take at Intoxalock?
Installation typically takes 1-2 hours depending on your vehicle type, with certified technicians providing device setup and training.
What should I do if my ignition interlock device locks me out?
If locked out, contact Intoxalock customer support for assistance with the override process and guidance on resolving the issue to get you back on the road quickly.
Are there nearby automotive services where I can get related vehicle repairs or towing in Cookeville?
Yes, nearby places include C & C Collision, which offers automotive repair and towing services, Mountain Man Auto Repair for automotive repairs and detailing, and Car Service Garage for general repair work.
What nearby places can I visit for automotive parts or accessories in Cookeville?
You can check out Affordable Motors for car dealership and automotive parts, Filter Mart as a wholesale department store, and Auto parts stores nearby for additional automotive supplies.
Are there nearby points of interest where I can relax or shop after visiting Intoxalock?
Yes, nearby you can visit Panaderia Guatemex Bakery for food and groceries, Willow Wood Farms for flowers and gifts, or Uncommon Grounds for landscaping and gardening services.