How Much Does an Ignition Interlock Cost?

Total IID Costs in Utah Range from $1,400 to $5,700 Depending on Duration and Vehicles

The ignition interlock device costs in Utah include a one-time installation fee of $100 to $200, monthly monitoring fees of $70 to $150, and a removal fee of $50 to $100. For an 18-month requirement on a single vehicle, total costs range from approximately $1,360 to $2,900. For a 36-month requirement, costs range from $2,620 to $5,600. Multiple vehicles multiply these costs proportionally.

These expenses are in addition to all other DUI-related costs including fines, treatment, insurance increases, and attorney fees. Understanding the full cost picture helps you budget and make informed decisions. Glen Neeley has helped clients manage the financial aspects of DUI convictions since 1998.

Cost Components Explained

Installation: $100 to $200

The initial installation includes mounting the device in the vehicle, connecting it to the ignition system, calibrating the breathalyzer component, and training the user on proper operation. The appointment takes 1 to 2 hours at an approved service center.

Monthly Monitoring: $70 to $150

Monthly fees cover the device lease, calibration during scheduled monitoring visits, data download and reporting to the Driver License Division, and equipment maintenance. Monitoring visits are required every 30 to 60 days. Prices vary among Utah’s approved IID providers.

Removal: $50 to $100

When the DLD authorizes removal after completing the mandatory period, the provider removes the device and restores the vehicle’s ignition system. The removal appointment is shorter than installation.

Additional Charges

Lockout fees may apply if the device prevents the vehicle from starting and requires a provider visit. Violation reset fees may be charged when a violation locks the device. Expedited service requests may carry premium charges. These additional costs vary by provider and situation.

Total Cost Projections

18 months, one vehicle (standard first offense): $1,360 to $2,900. This assumes installation, 18 monthly monitoring payments, and removal with no violations or additional charges.

36 months, one vehicle (aggravated offense): $2,620 to $5,600. The doubled duration makes the 36-month requirement significantly more expensive.

18 months, two vehicles: $2,720 to $5,800. Each vehicle requires its own device, doubling the installation, monitoring, and removal costs.

36 months, two vehicles: $5,240 to $11,200. Multiple vehicles on a 36-month requirement represent the highest cost scenario.

These projections do not include potential extension costs from violations. Each additional month adds $70 to $150 per vehicle.

How to Reduce Interlock Costs

Compare pricing among Utah’s approved IID providers. Costs vary significantly, and getting quotes from multiple providers can save hundreds of dollars over the interlock period.

Reduce the number of vehicles requiring installation. If you own multiple vehicles, consider temporarily taking some off the road. The requirement applies to every vehicle you own or regularly operate.

Avoid violations that extend the interlock period. Strict compliance keeps costs at the minimum required level. Each month of extension adds significant expense.

Ask providers about financial hardship programs or payment plans. Some providers offer reduced rates or flexible payment options.

Install the device promptly after sentencing. Delays do not save money. They only postpone the cost and extend the overall timeline.

Frequently Asked Questions About Interlock Costs

Insurance Costs on Top of IID

SR-22 filing signals high-risk status with 50-200% rate increases persisting 3-5 years. Combined with interlock, monthly driving costs increase $200-$400+.

Long-Term Financial Planning

Create a timeline of expenses: immediate, medium-term, and long-term. Communicate with your attorney if financial stress affects compliance ability.

Insurance Implications of an Interlock Requirement

An ignition interlock requirement in Utah is connected to your driving record and typically accompanies an SR-22 insurance filing requirement. The SR-22 is a certificate of financial responsibility that your insurance company files with the Utah Driver License Division. Carrying both an IID and SR-22 increases your insurance premiums, sometimes substantially depending on your prior driving history and the insurance carrier.

The duration of elevated insurance costs often extends beyond the interlock period itself. Many carriers reassess rates based on the full timeline of the DUI-related events on your record. We review these financial impacts with clients during consultation because the total cost of a DUI conviction in Utah extends well beyond fines and court fees. Understanding these costs early helps you plan and budget appropriately.

What Happens at a Calibration Appointment

Calibration appointments are required at regular intervals, typically every 30 to 60 days depending on the service provider and court order. During calibration, the service technician downloads the data log from your device, recalibrates the sensor accuracy, and inspects the unit for tampering or damage. The appointment usually takes 30 to 60 minutes.

The data download is one of the most important parts of the calibration visit. The device records every breath sample, every failed test, every missed rolling retest, and any attempts to tamper with the unit. This data is reported to the Utah Driver License Division and, in some cases, to your probation officer or the court. If the data shows violations, consequences can follow quickly. Our office reviews data reports with clients to identify potential issues before they escalate.

Daily Life with an Ignition Interlock Device in Utah

Living with an ignition interlock device (IID) changes your morning routine. Before starting the vehicle, you provide a breath sample into the handset. The device takes a few seconds to analyze the sample. If it reads below the preset threshold, the vehicle starts normally. If the reading is above the limit, the device locks the ignition for a timed waiting period before you can retest.

Cold weather in Utah creates additional considerations. During winter months, the device may take longer to warm up and provide accurate readings. We advise our clients to allow extra time before scheduled departures, particularly during December through February when temperatures in the Salt Lake Valley and surrounding areas regularly drop below freezing. The handset should be stored in a location where it will not freeze overnight.

Passengers in your vehicle may ask about the device. There is no legal prohibition against having passengers while driving with an IID, and you are not required to explain the device to anyone. However, the device will prompt rolling retests during your drive, which means you will need to provide additional breath samples while the vehicle is in motion. These retests are timed, and missing one can trigger a violation.

Common Interlock Myths Versus Reality

Several misconceptions surround ignition interlock devices. One common myth is that mouthwash or certain foods will cause a failed test. While some products containing alcohol can produce a brief elevated reading, the device is calibrated to detect ethanol at specific concentrations. Rinsing your mouth with water and waiting a few minutes before testing typically resolves residual mouth alcohol from food or hygiene products.

Another myth is that someone else can blow into the device for you. Modern IID units use camera verification and breath pattern recognition to prevent circumvention attempts. Attempting to have another person provide a breath sample is a violation that carries serious consequences, including extended interlock periods and potential criminal charges. The device is designed to ensure that the person providing the sample is the driver.

Some drivers believe that disconnecting the battery will reset the device or erase violation data. This is incorrect. Power disconnections are logged and reported. Tampering with the device or its power source creates additional violations that can extend your restricted driving period and result in further penalties from the Utah Driver License Division.

Planning for the Full Financial Impact

The total cost of an ignition interlock device extends beyond installation and monthly monitoring fees. Factor in calibration appointment costs, potential repair fees if the device malfunctions, increased insurance premiums from the SR-22 requirement, and the time cost of maintaining compliance with every scheduled appointment. We help clients build a realistic budget that accounts for all IID-related expenses from installation through removal. Understanding the full cost picture early prevents financial surprises during the interlock period and helps you plan around other obligations.