Uninsured Motorist Claim Lawyer in California

Plenty of California drivers carry no insurance at all, and many more carry only the state minimum — an amount a single ambulance ride and ER visit can exhaust. If the driver who hit you can't cover your losses, the claim that matters most may be the one you file against your own insurance company.

That claim is called an uninsured motorist (UM) or underinsured motorist (UIM) claim, and it works very differently from a normal injury claim. Here's what California law actually says, and where these claims tend to go wrong.

What Uninsured and Underinsured Motorist Coverage Actually Covers

UM and UIM coverage sits on your own auto policy and steps in when the at-fault driver can't pay. Under California Insurance Code § 11580.2, it applies when the other driver:

• Had no liability insurance at all;
• Had insurance, but not enough to cover your injuries (that's the underinsured motorist side);
• Fled the scene in a hit-and-run; or
• Was driving a vehicle whose insurer denied coverage or went insolvent.

Coverage typically follows you, not just your car — usually as a driver, as a passenger in someone else's vehicle, and often as a pedestrian or bicyclist struck by an uninsured driver. Resident family members on the policy are generally covered too. Read your declarations page; UM limits are listed separately from your liability limits.

Uninsured motorist property damage is a separate, much smaller coverage

UMPD covers damage to your vehicle from an uninsured driver, but California caps it at $3,500, and it generally requires that the uninsured driver be identified. It usually isn't available if you already carry collision coverage. Don't confuse it with the bodily injury coverage that pays for your medical care and lost income.

The California Rule That Surprises Almost Everyone: UIM Is "Reduced," Not Stacked

This is the single most misunderstood piece of California law on this subject. Your underinsured motorist coverage does not get added on top of the at-fault driver's policy. It gets reduced by it.

If you carry $100,000 in UIM coverage and the driver who hit you had a $30,000 liability policy that paid out in full, the most your own insurer owes on the UIM claim is the $70,000 difference — not $100,000 more. And if the at-fault driver's limits are equal to or higher than your UIM limits, there is no UIM claim at all, no matter how badly you were hurt.

The practical takeaway: since January 1, 2025, California's minimum liability limits are $30,000 per person / $60,000 per accident / $15,000 property damage. If your own UM/UIM limits are also at the minimum, you have almost no cushion. Carrying UM/UIM limits well above the state minimum is one of the cheapest protections available to a California driver.

Deadlines and Requirements That Can Void a Valid Claim

A UM/UIM claim is a contract claim against your own insurer, so it doesn't follow the ordinary two-year personal injury statute of limitations in the way most people assume. Insurance Code § 11580.2(i) generally requires that, within two years of the accident date, you either file suit against the at-fault driver, formally institute arbitration, or reach a written settlement agreement with your insurer. Simply "having a claim open" with an adjuster does not stop that clock.

Three other requirements deserve real attention:

1. Hit-and-run reporting. For a hit-and-run UM claim, California generally requires physical contact with the fleeing vehicle, a report to police or the CHP within 24 hours, and a sworn statement to your insurer within 30 days. A "phantom vehicle" that ran you off the road without touching you is a much harder claim.
2. Consent to settle. Do not accept a settlement from the at-fault driver's insurer before getting your own UM/UIM carrier's written consent. Settling first can wipe out your UIM claim entirely by destroying your insurer's subrogation rights.
3. Government-related claims. If a public entity contributed to the crash — a dangerous roadway, a government vehicle — a written claim is generally due within six months, which is far shorter than the two-year rule.

Deadlines vary with the facts and with your specific policy language. Confirm yours with a lawyer rather than assuming.

Your Own Insurer Is Now the Opposing Party

People are often startled by how adversarial a UM claim becomes. You pay this company's premiums, but here its own money is at stake, so it evaluates you the way any defense insurer would — scrutinizing prior injuries, gaps in treatment, and recorded statements.

California law does give you leverage: your insurer owes you a duty of good faith and fair dealing, and unreasonably lowballing or delaying a legitimate UM claim can expose it to bad-faith liability beyond the policy limits. Most UM/UIM disputes over fault and damages are resolved through binding arbitration under the policy rather than a jury trial.

A few practical habits protect the claim:

• Notify your own insurer promptly, even if you think the other driver was insured.
• Be cautious with recorded statements before you understand the full extent of your injuries.
• Keep every bill, record, and mileage log; document lost wages in writing from your employer.
• Don't sign a medical authorization that opens your entire lifetime medical history.

If the driver fled, our guide on hit-and-run accidents in California walks through the additional steps that apply.

What a UM/UIM Claim Can Be Worth

Value depends on the same factors as any injury claim — medical expenses, future care, lost earnings and earning capacity, and pain and suffering — but it is hard-capped by your policy limits. A $1,000,000 case against a driver with no assets and a $25,000 UIM cushion is, realistically, a $25,000 recovery.

Two California rules can move the number:

• Pure comparative fault. If you were partly at fault, your recovery is reduced by your percentage of fault, but you are never barred from recovering.
• Proposition 213 (Civil Code § 3333.4). If you were the uninsured driver at the time of the crash, you generally cannot recover non-economic damages — pain and suffering — at all, only economic losses.

Be skeptical of any "average settlement" figure you see online. Anyone quoting a number before reviewing your policy, your medical records, and the at-fault driver's coverage is guessing. For background on how fault drives recovery here, see is California a no-fault state and our car accident practice page.

Frequently Asked Questions

Is uninsured motorist coverage required in California?

No. California requires insurers to offer UM/UIM coverage, but you can reject it in writing. Many drivers unknowingly waived it to lower a premium. Check your declarations page — if the UM line is blank or says "rejected," you have no coverage for this scenario.

Does uninsured motorist coverage cover a hit-and-run?

Yes, in most cases — hit-and-run is a core reason UM coverage exists. But California generally requires physical contact with the fleeing vehicle, a police report within 24 hours, and a sworn statement to your insurer within 30 days.

Will my rates go up if I file an uninsured motorist claim?

California regulations restrict insurers from surcharging a policyholder for a not-at-fault accident. If you were not at fault, filing a UM claim should not, on its own, raise your premium. Complaints about improper rating can be raised with the California Department of Insurance.

What's the difference between uninsured and underinsured motorist coverage?

Uninsured applies when the at-fault driver had no coverage. Underinsured applies when they had some, but not enough — and in California the UIM payout is reduced by whatever their liability policy already paid.

How much uninsured motorist coverage should I carry?

Most people are best served matching their UM/UIM limits to their bodily injury liability limits, and carrying meaningfully more than the state minimum. Because California UIM is reduced by the other driver's limits, low UM/UIM limits often deliver nothing at all. Requirements and proof-of-insurance rules are outlined by the California DMV.

Talk to a California Uninsured Motorist Lawyer

If an uninsured, underinsured, or hit-and-run driver injured you, the deadlines are shorter and stricter than most people expect — and your own insurer is not on your side of the table. MMG Law Firm offers a free, no-obligation consultation to review your policy and your options, and we handle injury cases on contingency: no fee unless we win. We serve injured clients across California. Contact us to have someone read your policy before you say anything to an adjuster.