TIA Recovery and Your Michigan License: Medical Clearance Steps

The DI-4 form asks your physician to certify whether you have any condition that impairs your ability to safely operate a motor vehicle. Your doctor must answer specific questions about seizure history, loss of consciousness, medication side effects, and cognitive function. The form requires your physician's signature, medical license number, and a statement that you were examined within the past 90 days. Most primary care physicians are familiar with the DI-4, but some specialists are not. If your neurologist treated your TIA but your primary care doctor handles ongoing monitoring, clarify which physician will complete the form before you assume it's being done. Missing or incomplete forms delay reinstatement by weeks. The Secretary of State processes medical clearance forms within 14 business days under current procedures. If additional documentation is required, you'll receive a letter specifying what's needed. No news within 3 weeks typically means your clearance was accepted and your driving privileges remain active.

Michigan does not require you to report a TIA to your auto insurance carrier unless it results in a formal license suspension or restriction. Carriers cannot ask health-related questions on standard auto insurance applications under most circumstances. Your rates are based on driving record, claims history, and demographic factors including age, not medical diagnoses. That said, if your license is suspended during the medical review period and you continue paying for auto insurance without driving, you may qualify for a storage or layup policy at reduced rates. Some carriers offer this automatically. Others require you to request it. If you don't notify your carrier and don't drive during a 60-day suspension, you've paid for coverage you didn't use and can't recover those premiums. If you resume driving after medical clearance and later file a claim, the carrier will verify your license status at the time of the accident. A lapse in valid licensure can void coverage entirely. Never drive without confirmed medical clearance, even if you feel fine and your physical license card hasn't been revoked.

If you cancel your auto insurance during the medical clearance period and then restart coverage after you're cleared to drive, Michigan carriers treat that as a coverage gap. Drivers over 75 with any coverage gap longer than 30 days face underwriting scrutiny that younger drivers do not. Expect rate increases between 15% and 40% depending on the carrier and the length of the gap. The gap itself signals elevated risk in carrier underwriting models, regardless of the reason. Some carriers allow you to submit documentation explaining a medical-related gap, but not all honor those explanations with rate relief. Progressive and State Farm have been more flexible with medical gap explanations for senior drivers in Michigan than some regional carriers, but this varies by underwriter. Maintaining continuous coverage during the clearance period avoids this entirely. If you're not driving, contact your carrier and request a parked vehicle or storage policy. Your rate drops to $20–$40 per month for comprehensive-only coverage, and you maintain continuous coverage status. When you resume driving and reinstate full coverage, your rate returns to your prior level without gap penalties.

If your medical review results in restrictions rather than full clearance, the most common restriction for TIA recovery is daylight-only driving. Michigan issues a restriction code on your license, and you are legally prohibited from operating a vehicle outside those parameters. Violating a restriction voids your insurance coverage and exposes you to both civil liability and criminal penalties. Daylight-only restrictions typically remain in place for 6 to 12 months, after which you can request a re-evaluation. Your physician submits updated DI-4 paperwork, and the Medical Review Section makes a determination. Some drivers remain on daylight-only restrictions indefinitely if their medical condition warrants it. Your auto insurance carrier will not know about the restriction unless they pull your motor vehicle record during renewal or after a claim. Most carriers pull MVRs annually. If a restriction appears and you did not notify the carrier, some will non-renew your policy at the next renewal rather than adjust your coverage terms. Non-renewal at age 75+ in Michigan significantly limits your carrier options and increases your cost to re-insure by 25–50% on average.

Once you receive confirmation from the Secretary of State that you're cleared to drive, contact your prior carrier first if you canceled coverage. Reinstating a lapsed policy within 60 days is easier and cheaper than applying as a new customer. Bring your medical clearance documentation and your driver's license showing no restrictions. If your prior carrier will not reinstate you or quotes a rate increase you cannot afford, request quotes from carriers that specialize in senior drivers with medical history. Auto-Owners and Frankenmuth have underwriting guidelines in Michigan that are more accommodating to drivers over 75 with resolved medical events than some national carriers. AARP partners with The Hartford for Michigan policies and offers medical gap explanations as part of the application process. Before you restart coverage, confirm that any mature driver discount you previously held is still applied. Some carriers require re-verification of the discount after a coverage gap longer than 90 days. The discount is worth $150–$300 annually in Michigan for drivers over 75, and you lose it silently if not re-verified at reinstatement.