Certified by Intoxalock Ignition Interlock • Apr 26, 2026
Car Inspection StationIntoxalock
Intoxalock is the no. 1 ignition interlock device brand in the U.S., and Intoxalock Ignition Interlock in Franklin, TN 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 TN 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 TN expert.
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Certified by Intoxalock Ignition Interlock • Apr 26, 2026
Certified by Intoxalock Ignition Interlock • Apr 26, 2026
Monday8:00 AM - 5:00 PM
Tuesday8:00 AM - 5:00 PM
Wednesday8:00 AM - 5:00 PM
Thursday8:00 AM - 5:00 PM
Friday8:00 AM - 5:00 PM
SaturdayClosed
SundayClosed
Reviews
4.0
7 reviews
5 stars
5
4 stars0
3 stars0
2 stars
1
1 star
1
LL
Lynch Loft
Mar 9, 2026
1.0
Per the state of TN you have a two-week period to have your device calibrated.
DUI Offenses - As enacted, requires an ignition interlock provider to permit a person to appear for calibration, monitoring, or inspection of the device at any time within a two-week period; authorizes a court to order reinstatement of a person’s driver license if the person has no other revocations or suspensions on the person’s driving record and the person’s only noncompliance with ignition interlock requirements has been with regard to the required calibration, monitoring, or inspection of the ignition interlock device; makes various other changes in regard to ignition interlock devices and the ignition interlock usage period. - Amends TCA Section 55-10-417 and Section 55-10-425.
SECTION 4. Tennessee Code Annotated, Section 55-10-425(c)(1)(B), is amended by deleting the subdivision and substituting: (B) Failing to appear at the ignition interlock device provider when required for calibration, monitoring, or inspection of the device; provided, that: - 4 - 000902 (i) A person is not in violation of this subdivision (c)(1)(B) if the person appears for calibration, monitoring, or inspection at any time the provider is open for operation within seven (7) calendar days before or seven (7) calendar days after the date of the person's scheduled appointment; (ii) A person may make an appointment for calibration, monitoring, or inspection within the seven-calendar-day period before or after their original appointment, but the calibration, monitoring, or inspection must be completed within the seven-calendar-day period before or after their original appointment for subdivision
KB
Kelli Brewer
Jan 24, 2026
5.0
Great company fast install
KC
Kimberly Chapman
Dec 20, 2025
5.0
Very professional! Nice guy ! Ladies in office very sweet ! Highly recommend this company 👌
KC
Kim Chapman
Dec 19, 2025
5.0
These guys are great! Vincent very sweet and helpful 😊
Frequently Asked Questions About Intoxalock Ignition Interlock
How does an interlock device work?
Once the device is installed, drivers blow into the car breathalyzer mouthpiece to provide a breath sample. The device tests for breath alcohol content (BrAC) within the legal limit. If it's under the limit (typically .02), then the driver can put their keys in the ignition and start the car.
What is the cost of ignition interlock device?
An ignition interlock device, also frequently referred to as a car breathalyzer, ranges in cost between $70 and $150 for installation. This fee is a one-time fee paid at the start of your lease period for the device to be installed into your vehicle. This fee is paid directly to the service center for the work done to complete your installation.
How do I use my interlock device?
At your appointment, you will learn how to use the Intoxalock ignition interlock device, what to avoid before blowing into the device, and how to maintain the device. Tutorial videos are also available on the Intoxalock mobile app.
Where do I get an ignition interlock device?
Intoxalock has more than 4,200 locations for your interlock device installation. Intoxalock has more locations than any other provider. In fact, we have a location within 15 miles of over 91% of our customers. With so many places to install and service your ignition interlock device, our team makes the process as convenient as possible.
How long will my installation take?
Once you’re at the Intoxalock location, you can expect your appointment to take one to two hours — time varies based on the make, model and year of your vehicle. You can plan to either leave your vehicle or pick it up when installation is complete. Our Intoxalock team is highly trained to quickly and carefully install your equipment.
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