Frequently asked questions
Will the device stop my car while I am driving?
No. An interlock only prevents the engine from starting. If a rolling retest is missed or failed while driving, the device records the event and may sound an alarm until the vehicle is turned off, but it never shuts down a moving vehicle.
Can someone else drive my car?
Yes. Anyone who drives the vehicle must use the device the same way you do, providing a breath sample to start the engine and completing rolling retests. Remember that every test on the device is attributed to your program, so only let people you trust drive the vehicle.
What if I use mouthwash or eat certain foods?
Products that contain alcohol, such as some mouthwashes, can cause a temporary positive reading. Wait several minutes after using them, rinse your mouth with water, and test again. Devices allow retests precisely because of situations like this.
What happens if I fail a test?
A single failed initial test simply means the vehicle will not start, and the event is logged. Repeated failures, missed retests, or signs of tampering are reported to the monitoring authority and can lead to consequences such as an extended interlock period. The rules for your program are in your paperwork.
Does the interlock damage my vehicle?
No. The device is connected to the ignition circuit using standard automotive methods, and the installation is designed to be fully reversible. When the device is removed, the wiring is restored to its original state.
What about cold weather or a weak battery?
Interlocks draw a small amount of power. If a vehicle sits unused for a long time, the battery can run down, just as it can with any electronics. If your vehicle will be parked for an extended period, tell your provider and ask how to handle it.
Can I get the device removed early?
Removal is authorized by the court or the DHSMV, not by the provider. When your required period is complete and you are in good standing, you will receive authorization and the provider will remove the device.
Is this site affiliated with a device vendor?
No. This is an independent informational resource. We do not sell or lease devices, and nothing here is legal advice. For decisions about your case, talk to the court, the DHSMV, or a licensed attorney.