Ignition Interlock Device (IID) in Michigan
Michigan uses the term "OWI" for impaired driving offenses. IID requirement: required for high bac or repeat offenses. First offense duration: 1 year (only if BAC 0.17%+ under Super Drunk law; not required for standard first). Monthly cost: $65-$100.
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Quick Answer
Michigan requires IID for OWI convictions with high BAC (0.17%+) on first offense, and for all repeat offenders. Standard first-offense OWI with BAC below 0.17% does not mandate IID, but the court may order it.
IID Duration by Offense
| Offense | IID Duration |
|---|---|
| 1st Offense | 1 year (only if BAC 0.17%+ under Super Drunk law; not required for standard first) |
| 2nd Offense | 1 year minimum |
| 3rd Offense | 1 year minimum (often longer by court order) |
| 4th+ Offense | 1 year minimum (often longer by court order) |
BAC threshold: 0.17% BAC for first offense (Super Drunk law); all repeat offenses
IID Cost Breakdown in Michigan
| Item | Cost | Notes |
|---|---|---|
| Installation | $75-$150 | One-time fee. Takes about 1 hour. |
| Monthly Lease + Monitoring | $65-$100/mo | Includes device lease and monitoring. |
| Calibration | $25-$75 | Every 60 days. |
| Removal | $50-$100 | One-time fee when IID period ends. |
| Estimated Total (6 months) | $515-$850 | Install + 6 months lease + removal. |
| Estimated Total (12 months) | $905-$1,450 | Install + 12 months lease + removal. |
One-time
Lease + monitoring
Every 60 days
One-time
All-in estimate
All-in estimate
Approved IID Providers in Michigan
Contact providers directly for current pricing and service center locations in Michigan. Compare at least 2-3 providers before choosing — prices and service quality vary.
Restricted License with IID
Michigan issues a restricted license with IID that allows driving to work, school, medical appointments, alcohol treatment, and court-ordered programs. Under the Super Drunk law, the restricted license requires IID for the first 45 days of suspension.
Tampering / Circumvention Penalties
Tampering with an IID in Michigan is a misdemeanor. Penalties include up to 93 days in jail, fines, and extension of the IID requirement.
Early Removal
Michigan does not allow early removal for most cases. The full IID period must be completed.
Michigan-Specific Notes
Michigan's 'Super Drunk' law (BAC 0.17%+) triggers enhanced penalties including mandatory IID for first offenders. Standard first-offense OWI (BAC 0.08-0.169%) does not require IID but a judge may order it. Michigan requires IID for at least 1 year for repeat offenders.
Frequently Asked Questions
Is an IID required for a first OWI in Michigan?
What is Michigan's Super Drunk law?
How much does an IID cost in Michigan?
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