Uninsured & Underinsured Motorist Coverage

California is an at-fault state, so the driver who causes a crash is the one who owes for the harm. That holds until the driver who causes it has no insurance, too little, or cannot be found. Uninsured and underinsured motorist coverage is the part of your own policy written for that gap, and Insurance Code 11580.2 sets out when it applies.

Insurers must include it unless the named insured deletes it by written agreement in the form the statute prescribes. It is offered as a single coverage for both the uninsured and the underinsured situation. The offer has to match the bodily injury liability limits on the policy, though the statute does not require an insurer to offer more than $30,000 per person and $60,000 per accident. Whether yours will write above that is worth confirming rather than assuming.

What counts as an uninsured vehicle?

More than an empty policy. The definition reaches a vehicle with no bodily injury liability insurance in force at the time of the accident. It reaches one whose insurer denies coverage, or admits it only conditionally or with a reservation. It reaches one whose insurer becomes insolvent within a year of the accident. And it reaches an underinsured vehicle.

It does not reach a vehicle owned or operated by you or by a resident of your household, a self-insured vehicle, or one owned by a government body. There are also less obvious situations this coverage reaches. What your own policy does with each of them appears in the uninsured motorist endorsement shown on your declarations page.

Does it cover a hit-and-run?

It can, and the conditions come before the coverage. Where the owner or operator is unknown, the statute requires physical contact between that vehicle and you, or the vehicle you were occupying. A driver who forces you off the road without touching you does not meet that test.

Two deadlines follow. The accident has to be reported within 24 hours to the police department of the city where it happened, or to the county sheriff or the California Highway Patrol if it happened in unincorporated territory. A statement under oath then has to be filed with the insurer within 30 days. Those windows run from the crash rather than from the day a claim is opened, which is why what you do immediately after a crash with an uninsured driver matters so much.

What makes a driver underinsured in California?

This is the definition that surprises people. A vehicle is underinsured where its liability limit is lower than the uninsured motorist limit carried on your own vehicle. The comparison is to your limit, not to your medical bills.

So a driver carrying 30/60 is not an underinsured driver to someone who also carries 30/60, however serious the injury. The coverage sits on the policy and reaches nothing. Your own limit is what creates the gap it can fill.

Two further rules shape the payment. The at-fault driver's liability limits must first be exhausted by payment, with proof given to your insurer. The most your insurer then owes is your underinsured motorist limit less what has already been paid by anyone legally liable. A $100,000 limit against a $30,000 liability payment leaves $70,000, rather than a second $100,000.

What about the damage to your car?

Uninsured motorist bodily injury does not reach property damage. That sits in a separate offer under Insurance Code 11580.26, and it takes one of two shapes. Where the policy carries collision coverage, what is offered is payment of the collision deductible when an uninsured vehicle is involved. Where it does not, the offer is property damage coverage capped at the vehicle's actual cash value or $3,500, whichever is less.

The $3,500 version excludes personal property inside the car and excludes loss of use. The more important point is that one condition governs both forms. Payment under either requires actual, direct physical contact, and requires the owner, the operator, or the license plate to be identified. The accident also has to be reported to the insurer within 10 business days.

That is why a genuine hit-and-run tends to play out the way it does. Where the vehicle is never traced, neither form of this coverage is available, including the deductible waiver. The damage to the car then runs through collision coverage, and the deductible comes out of your pocket even though you did nothing wrong. The injury side can still proceed as an uninsured motorist claim, because an unknown driver meets that definition on its own. The two halves of the same crash separate at exactly that point.

What can end a claim before it is decided?

Settling with the at-fault driver, or taking a judgment against that driver, without your insurer's written consent removes the coverage. Consent comes first, and that order is not a formality.

Timing is the second. Within two years of the date of the accident, one of three steps has to have been taken. Suit filed against the uninsured motorist, an agreement concluded on the amount due, or arbitration formally instituted by written notice to the insurer sent by certified mail. The two years run from the crash, not from a denial.

One protection runs the other way. Where a claim is pending and the insured is not represented by an attorney, the insurer has to give written notice of the applicable limitation period at least 30 days before it expires. Failing to do so tolls that period for 30 days.

Who decides a disagreement?

A single neutral arbitrator rather than a judge, and on two questions only: whether the insured is legally entitled to recover, and how much. Other issues, including how the claim itself was handled, stay with the court. An arbitration has to be concluded within five years of being instituted, with a longer path where a workers' compensation claim arises from the same crash.

Recoveries coordinate rather than accumulate, which is one part of how injury coverage works alongside car insurance. The amount may be reduced by medical payments coverage already paid and by workers' compensation benefits, and limits on two or more vehicles or two or more policies cannot be stacked together.

One more California rule worth knowing

Proposition 213, codified at Civil Code 3333.4, bars an uninsured vehicle owner from recovering non-economic damages, and it applies even where the other driver caused the crash. Subdivision (b) extends that bar to what an uninsured motorist policy pays. Economic losses survive it, and a carve-out applies where the at-fault driver was convicted of driving under the influence.

Insurance Code and Civil Code provisions change. The sections described above reflect the law as published by the California Legislative Counsel at the time of writing, and that office publishes the current text.

Because underinsured is measured against your own uninsured motorist limit, the figure on your declarations page decides how much of this coverage exists at all. Many California drivers carry the state minimum, which sets a low ceiling on what a liability claim against them can produce. We can walk through how much liability coverage to carry in California, review your current uninsured motorist limit alongside how and where your household drives, and show you what raising it would cost.