Listed as a Driver on a Parent's Policy? An Ohio Court Says You Have UIM Coverage

Published March 5, 2026 · Ohio Appeals Courts

Look at the declarations page of almost any family auto policy and you will see two lists. One shows the "named insured," usually a parent. The other lists every "driver" the company considered when it set the premium, often including grown children who borrow the family cars. When one of those listed drivers is hurt by an underinsured driver, insurers frequently take the position that being listed means nothing. On February 19, 2026, an Ohio appeals court rejected that argument.

In Cleary v. Nationwide Mut. Ins. Co., 2026-Ohio-571, the Tenth District Court of Appeals held that an adult son listed as a "rated driver" on his mother's Nationwide policy was an insured for underinsured motorist (UIM) coverage, even though he lived in another state. The court also held that Nationwide could not escape coverage by pointing to his failure to cooperate unless it proved that failure actually hurt the company.

What happened

Jan Cleary held a Nationwide auto policy in Ohio. She was the only named insured, but the policy listed four "rated drivers," including her son Jeffrey. Jeffrey had lived in California since 2011. On December 26, 2020, he was injured in a crash in California while driving his girlfriend's car. He collected the at-fault driver's liability limits and then asked Nationwide for UIM benefits under his mother's policy.

Nationwide denied the claim. Under the policy, an "insured" for UIM purposes was the named insured, a "family member" (a relative who lives in the named insured's household), or someone occupying a covered car. Jeffrey was none of those. The trial court in Franklin County agreed with Nationwide.

Why the appeals court found coverage

The key was a term the policy used but never defined: "rated driver." The Tenth District relied on its own earlier decision in Jensen v. State Auto. Mut. Ins. Co., 2005-Ohio-4354, in which a son listed as a driver on his parents' policy was struck as a pedestrian. In Jensen, the policy did not define what coverage listed drivers received, so the court found the policy ambiguous and construed it in the son's favor. The Jensen court also noted that the insurer had charged a premium to cover him.

The Cleary court saw "no substantive difference" between a listed "additional driver" in Jensen and a listed "rated driver" at Nationwide. Both terms identify the drivers for whom the premium was calculated and paid. Because Nationwide's policy did not say what coverage a rated driver receives, the policy was ambiguous. Ohio law requires ambiguous policy language to be read against the insurance company that wrote it and in favor of coverage. The court therefore held Jeffrey was an insured for UIM purposes.

It is worth being precise about what this means. The decision turned on the language of this policy. An insurer that clearly defines what a listed driver does and does not receive may write a different result. But many family policies list drivers without saying what that listing means, and when they do, Cleary and Jensen give the listed driver a strong argument for coverage.

The cooperation clause is not a free pass to deny

Nationwide had a second argument. Its policy required anyone seeking coverage to cooperate, give a recorded interview, and attend an examination by a company-selected doctor. Jeffrey had not given the interview or attended the examination, and the court agreed that he had not complied.

That was not enough. Ohio courts hold that an insured's lack of cooperation defeats coverage only when it causes the insurer real harm. In the court's words, quoting an earlier decision, the lack of cooperation "must result in material and substantial prejudice to the insurance company." Nationwide said it needed the interview to investigate where Jeffrey lived. The court found that was not prejudice: the delay only left the residency question open until formal discovery, and an earlier answer would have made no difference to Nationwide's denial. The court reversed on this point too and sent the case back to the trial court.

This is an important protection. Insurers often cite cooperation clauses when they deny claims. The question is not whether every request was met; it is whether the company can prove it was materially harmed.

Why this matters for serious injury claims

UIM coverage is often the only meaningful source of recovery when a careless driver carries the Ohio minimum and the injuries are severe. Ohio law does not require anyone to carry it; R.C. 3937.18(A) says a policy "may, but is not required to," include it. When a family has paid for UIM coverage, the question of who counts as an "insured" can be worth tens or hundreds of thousands of dollars.

We regularly find coverage that an adjuster initially said did not exist. A young adult hurt in a friend's car, a college student injured while walking, or a grown child who borrows a parent's vehicle may have UIM coverage under a parent's policy, under the policy on the car they were in, or under their own. Our guide chapter on using your own insurance walks through who is typically covered and how UIM is calculated, and our UM/UIM claims page explains how these claims proceed.

What this means for you

• Send us every policy in the household. Not only yours. Ask parents, spouses, and adult children for their declarations pages. We explained how to find yours in our New Year policy checklist.
• Do not accept "you're not an insured" at face value. The answer depends on the policy's definitions, and undefined terms are read in your favor.
• Respond to your insurer's reasonable requests, preferably with a lawyer's help, but know that a cooperation clause is not an automatic escape hatch for the company.
• Be careful with recorded statements. Your own insurer can ask for one under most policies, but how and when it is given matters. Our chapter on dealing with insurance adjusters explains how to handle those requests.