Certified by Intoxalock Ignition Interlock • Mar 01, 2026
Car Inspection StationIntoxalock
Intoxalock is the no. 1 ignition interlock device brand in the U.S., and Intoxalock Ignition Interlock in Phoenix, MD 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 MD 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 MD expert.
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Certified by Intoxalock Ignition Interlock • Mar 01, 2026
Certified by Intoxalock Ignition Interlock • Mar 01, 2026
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Bailey Langley
Sep 22, 2023
1.0
If you can go with a different interlock company I would highly recommend it. Intoxalocks device is highly unsafe in my opinion the mouth piece always tends to fly off when you have to blow into it going down the high way at 60 mph. So then I gotta look where the mouth piece is and not focus on the road. I wouldn’t be shocked if this company has a lawsuit in its near future due to a multi vehicle collision. Also the devices tends to go off every 15 minutes which I think is absurd. Last thing I have noticed after a month of having it installed it messes with my car’s motherboard. I hope it stops after I get it uninstalled but we will see. Ooooo and one more thing there customer service is trash I told the guy where I lived and he was try to send me to a place that’s an hour and a half a way when there is a shop 20 minutes from my house that could have installed it. So I had to pay extra to have some guy come out on the weekend. I personally think i should get a refund on that. So people reading this that are getting it done look up local shops that can do the work first then call them and just tell them where you’re going because like i said their service line is trash. Also the people that I goto that work for them feels the same way, as tho Intoxalock people have no clue to what they are doing and they are hard to deal with.
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.
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