*Guardian Interlock, LLC is no longer accepting new interlock customers in the State you selected. Please contact LifeSafer for all of your ignition interlock needs.

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How Does An Ignition Interlock Work?

Install

Blow into the ignition interlock device before starting your vehicle. If the sample meets the state requirement, it will start.

Drive

Ignition Interlock installation is easy with our experts. Find an installer near you.

Maintenance

Your ignition interlock device will need to be serviced every 30, 60, or 90 days. Service dates will vary by state.