Smart Start Ignition Interlock

21 Car Audio
2001 N 35th Avenue
Phoenix, AZ 85009

#1 Ignition Interlock from $1.99/day*. Same-day installation available

Book your install now

Hours of Operation:

Day	1st Hour Block	2nd Hour Block
Sun	Closed
Mon	9:30am - 7:00pm
Tue	9:30am - 7:00pm
Wed	9:30am - 7:00pm
Thu	9:30am - 7:00pm
Fri	9:30am - 7:00pm
Sat	9:30am - 7:00pm

Services at this Location:

Sign Up
Manage Account
Informational Videos

Book an Installation

With the thousands of locations across the nation, 24/7 customer support, no hidden fees and the most reliable device on the market, Smart Start Ignition Interlock devices are hands-down the best way to get you back on the road fast.

Get a quick and easy IID installation with Smart Start! Get started today!

¡Obtenga una instalación rápida y fácil de IID con Smart Start! ¡Empieza hoy mismo!

"* (required)" indicates required fields

Fieldset Begin

spanish_espanol

Contáctame en español

First Name* (required)

Last Name* (required)

Cellphone* (required)

Zip Code* (required)

Email* (required)

This field is hidden when viewing the form

contact_consent* (required)

By providing your information and clicking “Book Your Install Now”, I authorize 1A Smart Start LLC and it’s franchisees’ to contact me at the phone number and/or email address above via phone, text, and/or email using multiple and periodic autodialed and prerecorded calls and texts for marketing purposes. Not a condition for purchase. Message and data rates may apply. To opt-out of texts, replay “STOP,” and to opt-out of emails click the email unsubscribe link.

This field is hidden when viewing the form

franchisee_consent

By providing my information and clicking “Book Your Install Now,” I authorize [Insert Legal Name of Franchisee, distributor, or affiliate] to contact me at the phone number above via phone and/or text using multiple and periodic autodialed and prerecorded calls and texts for marketing purposes. Not a condition for purchase. Message and data rates may apply. To opt-out of texts, reply “STOP”.

Fieldset Begin

Fast-Track Your Installation

Want to speed up the installation appointment process?
We can get you a quote faster if you fill out the information below.

Date of Birth

Drivers License #

VIN #

State Authority Name

Preferred Date

Preferences are subject to change based on availability.

Preferred Time

Questions/Comments

Phone

This field is for validation purposes and should be left unchanged.

Or Call (833) 404-0037 Now!

¡O llame ahora al (833) 404-0037!

Why Choose Smart Start Ignition Interlock?

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.

TALK TO A PROGRAM ADVISOR

#1 Ignition Interlock Device Provider at 21 Car Audio in Phoenix

Drive smarter for less with Smart Start Ignition Interlock. We offer an Ignition Interlock Device (IID) designed and priced with you in mind. You deserve a device that is reliable and will get you through your IID requirement. () 201-341983":0,"() 335-559739":160,"() 335-559740":259}">

Our certified shop is located just off the I-10, on N 35th Ave, next to Isaac Middle School. You can find us inside 21 Car Stereo!() 201-341983":0,"() 335-559739":160,"() 335-559740":259}">

We provide service for Phoenix, Glendale, Tempe or anywhere in Maricopa County. Just 10 minutes away from the Phoenix Museum of Art and Encanto Park, there is plenty to do before or after your installation or calibration appointments.() 201-341983":0,"() 335-559739":160,"() 335-559740":259}">

Ignition Interlock Installation in Central Phoenix, Arizona() 342-45418":true,"1() 342-45529":true,"() 201-341983":0,"() 335-559738":40,"() 335-559739":0,"() 335-559740":259}">

We make your Ignition Interlock program simple, affordable, and reliable with 24/7/365 customer service and easy, quick tests. You’ll receive hands-on training with our friendly, licensed technicians until you are comfortable testing with your Ignition Interlock.() 201-341983":0,"() 335-559739":160,"() 335-559740":259}">

Schedule your installation at 21 Car Stereo by calling [shop_telephone] or fill out our online form below to schedule your installation appointment. Be sure to ask about any current state specials or discounts! You can also check here for more Smart Start locations in the Phoenix area.() 201-341983":0,"() 335-559739":160,"() 335-559740":259}">

Frequently Asked Questions

The overall cost of an Ignition Interlock Device is a combination of installation fees, monthly service fees, and removal fees. Exact pricing varies by state. To get a quote today, call (800) 831-3299 to speak with a friendly Program Advisor.

Once you have scheduled your Ignition Interlock Device (IID) installation with Smart Start, you will need to bring the following to your IID installation appointment in Arizona:

Two valid forms of identification—one of which should include a photo of you.
Proof of residence.
Any and all court documents that may be relevant to your Ignition Interlock Device requirement or your restricted driving period.
Vehicle registration. If you do not own the vehicle on which you’re installing the Ignition Interlock Device, or if that vehicle is not registered to you, you will need to bring a letter of permission from the registered owner stating that you are allowed to install an Ignition Interlock Device on the vehicle.
The vehicle on which you’ll be installing an Ignition Interlock Device (IID).

If you have any additional questions or concerns about the installation process or what is required for a successful installation, please don’t hesitate to call our customer care team at (800) 831-3299. You can also click on the chat window below to begin a discussion with one of our customer care advocates.

You may be able to service your Ignition Interlock Device at any Smart Start service center nationwide. However, we strongly suggest checking with your state authority in Arizona before seeking service outside of your state. Find the nearest Smart Start service center here.

Typically, you will need to service your Ignition Interlock Device (IID) once every 30-60 days or as determined by your jurisdiction in Arizona.

Ignition Interlock Device violation criteria can vary by state. Any and all of the following may constitute a violation in Arizona:

A skipped rolling retest
Tampering with the Ignition Interlock Device in any way
Any breath sample that registers a BrAC above .02 percent
Missing your scheduled IID service appointment

Learn more about Ignition Interlock Device violations.

In Arizona, you can pay for your Interlock Device calibration via credit card at the Smart Start service center at the time of calibration or via the online Client Portal.

Nearby Locations

Rules of the Road

3314 W Catalina Dr
Phoenix, AZ 85017

OPEN NOW – Closes at 7:00pm

Services at this Location:

(888) 234-0200 More Details

Facil Insurance

3024 W Van Buren Street
Phoenix, AZ 85009

OPEN NOW – Closes at 5:00pm

Services at this Location:

(602) 773-0001 More Details

Smart Start of Arizona

3801 North 35th Ave
Phoenix, AZ 85017

OPEN NOW – Closes at 5:00pm

Services at this Location:

Installations, Calibrations, Drive Up

(602) 282-4217 More Details

See What Everyone Says About Our Ignition Interlock

Excellent TrustScore Rating

June 19, 2025

"Great at explaining "

Jayden Yates.

United States

June 19, 2025

"Erica was great! She was friendly, efficient, and knowledgeable. She explained everything, provided all the information and made the registration process super easy. It’s nice to have a person like Erica helping you during an unfortunate time. "

Amber Fidone.

United States

June 19, 2025

"Was very helpful"

Shawn L.

United States

USA Privacy Policy

Do Not Sell or Share My Personal Information

Find a location near you!

Smart Start Ignition Interlock

Hours of Operation:

Services at this Location:

Book an Installation

Fast-Track Your Installation

Want to speed up the installation appointment process?
We can get you a quote faster if you fill out the information below.

Or Call (833) 404-0037 Now!

¡O llame ahora al (833) 404-0037!

From $1.99/Day* - No Long-Term Contracts

3,000+ Locations - Same Day Install

Discreet, Easy-to-Use Devices

24/7 Knowledgeable State Program Experts

#1 Ignition Interlock Device Provider at 21 Car Audio in Phoenix

Ignition Interlock Installation in Central Phoenix, Arizona() 342-45418":true,"1() 342-45529":true,"() 201-341983":0,"() 335-559738":40,"() 335-559739":0,"() 335-559740":259}">

Frequently Asked Questions

Nearby Locations

Rules of the Road

Services at this Location:

Facil Insurance

Services at this Location:

Smart Start of Arizona

Services at this Location:

Get Started

Locations

Support

Partners

Contact Us

Find a location near you!

Smart Start Ignition Interlock

Hours of Operation:

Services at this Location:

Book an Installation

Fast-Track Your Installation

Want to speed up the installation appointment process?We can get you a quote faster if you fill out the information below.

Or Call (833) 404-0037 Now!

¡O llame ahora al (833) 404-0037!

Why Choose Smart Start Ignition Interlock?

From $1.99/Day* - No Long-Term Contracts

3,000+ Locations - Same Day Install

Discreet, Easy-to-Use Devices

24/7 Knowledgeable State Program Experts

#1 Ignition Interlock Device Provider at 21 Car Audio in Phoenix

Ignition Interlock Installation in Central Phoenix, Arizona() 342-45418":true,"1() 342-45529":true,"() 201-341983":0,"() 335-559738":40,"() 335-559739":0,"() 335-559740":259}">

Frequently Asked Questions

How much does an Ignition Interlock Device cost in Arizona? What are the fees?

What do I need to bring to my installation in Phoenix?

Where can I go for service? Anywhere, or just within my state?

How often does my IID need to be serviced in Arizona?

What constitutes a violation in Arizona?

How can I pay for calibration?

Nearby Locations

Rules of the Road

Services at this Location:

Facil Insurance

Services at this Location:

Smart Start of Arizona

Services at this Location:

See What Everyone Says About Our Ignition Interlock

Get Started

Locations

Support

Partners

Contact Us

Want to speed up the installation appointment process?
We can get you a quote faster if you fill out the information below.