If you’re searching for a car breathalyzer after a DUI charge, we offer the best Ignition Interlock Device in Southern California. We will help you successfully complete your car breathalyzer requirement and IID restriction with support from our helpful Program Advisors, who understand everything you need to know about Ignition Interlock in California so you can fully regain your driving privilege.
However, you’ll be getting more than just an Ignition Interlock Device. We’ll be with you right from the beginning with the services and support you need. As the cheapest Ignition Interlock program around, we have 24/7 customer care that makes your experience as easy as possible.
Schedule an installation appointment now at a nearby location.
Need Ignition Interlock? Get started with our Program Advisors today!
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Schedule an Interlock Device Installation in Carson
Ride with Smart Start
& get back on the road
- California’s #1 Ignition Interlock Program
- Low-price, with no hidden fees
- Fast installation with same-day available
- 24/7/365 Customer Care – Se hablamos Español
It only takes a moment to get your personalized quote.
Call Now! (800) 831-3299Ignition Interlock in Carson: We're Always Here for You
From $1.99/Day* - No Long-Term Contracts
Bi-weekly payment options designed to fit your budget.
Ignition interlock Costs3,000+ Locations - Same Day Install
Quick installs by skilled technicians at convenient U.S. locations.
Find a LocationDiscreet, Easy-to-Use Devices
Reliable, hygienic devices with guided tests and easy English-Spanish switching.
Smart Start devices24/7 Knowledgeable State Program Experts
Multilingual support trusted by over 1 million people, ready when you need us.
Talk to a program advisorLocations near Carson, California
Let’s get started with an installation that fits your schedule, at one of the convenient Ignition Interlock locations in Los Angeles below.
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9607 S San Pedro St
Los Angeles, CA 90003CLOSED – Opens at 8:00am -
13651 Garfield Ave
Unit A
South Gate, CA 90280CLOSED – Opens at 9:00am -
5937 E Olympic Blvd
Los Angeles, CA 90022CLOSED – Opens at 8:00am -
19201 S Reyes Ave
R204
Compton, CA 90221CLOSED – Opens at 8:30am -
16129 Hawthorne Blvd
Ste E
Lawndale, CA 90260CLOSED – Opens at 10:00am -
9928 Atlantic Ave
South Gate, CA 90280CLOSED – Opens at 10:00am -
11035 Atlantic
Unit B
Lynwood, CA 90262CLOSED – Opens at 9:00am -
1933 S. Broadway
Suite 1124
Los Angeles, CA 90007CLOSED – Opens at 8:00am -
317 1/2 W Arbor Vitae Street
Inglewood, CA 90301CLOSED – Opens at 10:00am -
13505 Telegraph Rd
Whittier, CA 90605CLOSED – Opens at 8:00am -
3809 W 3rd St
Los Angeles, CA 90010CLOSED – Opens at 9:00am -
1385 E. Golden St.
Compton, CA 90221CLOSED – Opens at 9:00am -
3521 W Slauson
Los Angeles, CA 90043CLOSED – Opens at 8:00am -
1883 S Cherry Ave
Long Beach, CA 90806CLOSED – Opens at 9:30am
Ignition Interlock in Carson: We're Always Here for You
The Most Discreet Ignition Interlock Devices in Carson, California
Smart Start’s car breathalyzers were designed to be court compliant while keeping the user’s needs in mind. We understand the desire for privacy during this difficult time, so our Ignition Interlock Device is small and discreet.
The black exterior allows you to conceal it easily in your motor vehicle, but size doesn’t dictate function! Our Ignition Interlock Device can read your alcohol-free test in less than one second, so you can get back on the road quickly.
The Best Customer Care
When you choose the cheapest Ignition Interlock Device, you’re choosing the 24/7 bilingual support of our Customer Care Center and the expertise of our local technician teams. Call (800) 831-3299 or complete the form at the top of this page to enlist Smart Start as your program partner. We’ll put the wheel back in your hands.
Questions about Ignition Interlock Devices in Carson, California
How do I get my IID calibrated in Carson?
Calibration is required regularly to ensure your IID is working properly. In Carson, we offer convenient service appointments to calibrate your device. The frequency of calibration is defined by California regulations. Generally, every 30-90 days.
Can I get same-day Interlock Device installation in Carson?
Yes! Smart Start offers same-day installation appointments at many of our Carson-area locations, subject to availability. We understand the urgency of meeting program deadlines, so we work to accommodate your schedule and get you back on the road as quickly as possible.
Where can I get an Ignition Interlock Device installed in Carson, California?
Smart Start offers several convenient installation locations throughout Carson and the surrounding areas. Our local service centers are staffed by experienced technicians who provide fast, professional installations. To find a location near you, visit our location finder or call our 24/7 Customer Care team for assistance.
How much does an Ignition Interlock Device cost in Carson?
Smart Start offers affordable Ignition Interlock solutions in Carson. See our Interlock Device cost guide for California to learn more.
How does an Ignition Interlock Device work?
An Ignition Interlock Device (IID) prevents a vehicle from starting if it detects alcohol on the driver’s breath. The driver blows into the device, and if their breath alcohol content is below the programmed limit, the car will start. You’ll also have to complete periodic retests after starting your vehicle to ensure continued compliance. Learn more about how IIDs work with our complete guide.
What are California’s IID laws?
In California, an Ignition Interlock Device (IID) may be required after a DUI. See our complete guide for information on IID laws and more in California.
See What Everyone Says About Our Ignition Interlock
Excellent TrustScore Rating
January 14, 2026
"Honestly I was bitter at first. But that was because of my own issues with it being mandatory. Other than watching the price rise dramatically, I think smart start is a thorough company that truly separates drinking from driving.I think every car on the road should have one. I recently had one reinstalled into my new truck to do the final 4 months. Shauna was excellent. I was able to get it installed the same day. She was intelligent and professional and went the extra mile to make sure I was content and even gave me a break on something that im sure she didn't have to. Once I settled in and grew up, the company grew on me and I was able to see it for more than the nuisance it had began with."
Michael Charles Irwin.
United States
January 14, 2026
"The last was very helpful "
Edwin E.
United States
January 14, 2026
"Itzel was very helpful and professional. Made the process easy and also helped me expedite my appointment. Excellent service! "
Brian M.
United States




