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Intoxalock device inside vehicle

What is an Ignition Interlock System?

Ignition Interlock System

An interlock system, also referred to as a car breathalyzer or ignition interlock, is a device that is installed in your vehicle to prevent you from drinking and driving. By requiring you to submit breath samples, the car interlock system measures how much alcohol is in your system and allows you to operate your vehicle if the alcohol in your body is below a certain amount.

Do I Need an Interlock System?

If you have been convicted of drunk driving, you may be required by your state monitoring authority (court, DMV, probation officer, etc.) to install an ignition interlock system in your vehicle. For a simple overview of ignition interlock laws in your state, visit our state requirements page and enter the state you were convicted in.

If you have not been convicted of drunk driving, but you are concerned that the current habits of you or your loved ones may lead to one, visit our voluntary ignition interlock devices page and see how Intoxalock Ignition Interlock can help protect you and your family.

Intoxalock Ignition Interlock – The Convenient Choice

Intoxalock Ignition Interlock makes the interlock system process as simple and convenient as possible by offering:

  • More locations than any other provider
  • Easy to use device (one button activation, simple breath sample)
  • Top-rated customer service available 24/7
  • Most reliable state compliance reporting (never suspended in any state)
Why Choose Intoxalock
Need an Ignition Interlock Installed? 877-272-5195

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How Do I Get an Ignition Interlock System for My Car?

To install an ignition interlock system in your vehicle, you have to reach out to an ignition interlock provider, such as Intoxalock, and schedule an appointment with an installation location in your local area. Intoxalock makes this process simple and convenient by offering more than 5,500 locations nationwide (twice as much as any other ignition interlock provider).

To see a list of the installation locations in your local area, visit our installation locations page and enter your zip code. By offering more installation locations, Intoxalock makes it easier for you to find a location near your home or work.

A woman at a vehicle service center being assisted by a certified ignition interlock installer.
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