Brand Certified
Intoxalock Ignition Interlock
4.4(23 reviews)
Certified by Intoxalock Ignition Interlock • Mar 01, 2026
Business Details
1787 N Central Expressway, McKinney, TX
75070, United States
Certified by Intoxalock Ignition Interlock • Mar 01, 2026
(469) 680-1180
Certified by Intoxalock Ignition Interlock • Mar 01, 2026
https://www.intoxalock.com/locations/tx/mckinney/1787-n-central-expressway-2361
Certified by Intoxalock Ignition Interlock • Mar 01, 2026
About
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 McKinney, TX 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 TX 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 TX expert.
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Location
Certified by Intoxalock Ignition Interlock • Mar 01, 2026
Intoxalock Ignition Interlock
1787 N Central Expressway, McKinney, TX
75070, United States
Hours
Certified by Intoxalock Ignition Interlock • Mar 01, 2026
Reviews
4.4
23 reviews
5 stars
18
4 stars
1
3 stars
1
2 stars
1
1 star
2
- CHCaleb Humphrey3 days ago5.0Even though my unit was not on site at my appointment time everything ran smoothly and easily. 0900 I was informed that I didn't have a unit and I was told approximately when it was expected and told I can drop it off or I could return after their call. Arrived at the expected time, got the call, returned to the store and left. Told to expect an hour or two. They were done around an hour and 15m. Absolutely nothing went wrong because everyone was professional and highly competent. NOT AN EXPERIENCE I'M USED TO. Most businesses I interact with are sloppy and have tons of excuses. This company surprised me.
- SSSeabeeErikFeb 12, 20265.0Car toys was helpful and very informative. Great company. Thanks Intoxalot for setting up my appointment with this awesome installer. Erik
- DMDavid MercadoOct 20, 20255.0Quick easy just pricy based on how new your car is when installing.
- AKAngelica KingOct 1, 20255.0The staff is very polite and great customer service.
- BLBobby LSep 30, 20255.0Quick, polite and efficient
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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