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Fast-Track Your Installation

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Schedule an Interlock Device Installation in Sunnyvale, CA

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) 831-3299

Ignition Interlock in Sunnyvale: 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 Costs

3,000+ Locations - Same Day Install

Quick installs by skilled technicians at convenient U.S. locations.

Find a Location

Discreet, Easy-to-Use Devices

Reliable, hygienic devices with guided tests and easy English-Spanish switching.

Smart Start devices

24/7 Knowledgeable State Program Experts

Multilingual support trusted by over 1 million people, ready when you need us.

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Locations near Sunnyvale, California

Let’s get started with an IID installation that fits your schedule, at one of the Ignition Interlock locations in San Jose.

CK Auto Image

527 Charcot Ave
Ste 329
San Jose, CA 95131

CLOSED – Opens at 10:00am

View Store Information Schedule An Install
(844) 647-1588 Get Directions
AA Ignition Interlock

1735 Angela St
San Jose, CA 95125

OPEN NOW – Closes at 5:00pm

View Store Information Schedule An Install
(833) 407-3514 Get Directions
TLS Automotive Electrical

3824 Union St
Unit 1
Fremont, CA 94538

OPEN NOW – Closes at 4:30pm

View Store Information Schedule An Install
(510) 270-9363 Get Directions

Ignition Interlock in Bakersfield: We're Always Here for You

If you’re searching for a car breathalyzer after a DUI offense, we offer the best Ignition Interlock Device in the area. We will help you successfully complete your car breathalyzer requirement with support from caring, compassionate specialists who understand everything you need to know about Ignition Interlock in California.

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. Our program includes 24/7/365 Customer Care that makes your experience as easy as possible.

Schedule an installation appointment now.

(800) 831-3299

The Most Discreet Ignition Interlock Devices in Sunnyvale, 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.

(800) 831-3299

Questions about Ignition Interlock Devices in Sunnyvale, California

How do I get my IID calibrated in Sunnyvale?

Calibration is required regularly to ensure your IID is working properly. In Sunnyvale, 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 Sunnyvale?

Yes! Smart Start offers same-day installation appointments at many of our Sunnyvale-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 Sunnyvale, California?

Smart Start offers several convenient installation locations throughout Sunnyvale 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 Sunnyvale?

Smart Start offers affordable Ignition Interlock solutions in Sunnyvale. 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

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